use dep as denpendency managment tool

.travis.yml

@@ -13,12 +13,14 @@ go_import_path: kubesphere.io/kubesphere
 
 before_install:
   - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+  - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
   - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
   - sudo apt-get update
   - sudo apt-get -y install docker-ce
+  - dep ensure -v
 
 before_script:
   - docker --version
 
 script:
-  - make fmt-check
+  - make fmt-check && make build

Gopkg.lock

+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/Microsoft/go-winio"
+  packages = ["."]
+  revision = "7da180ee92d8bd8bb8c37fc560e673e6557c392f"
+  version = "v0.4.7"
+
+[[projects]]
+  name = "github.com/coreos/etcd"
+  packages = [
+    "auth/authpb",
+    "clientv3",
+    "etcdserver/api/v3rpc/rpctypes",
+    "etcdserver/etcdserverpb",
+    "mvcc/mvccpb",
+    "pkg/tlsutil",
+    "pkg/transport",
+    "pkg/types"
+  ]
+  revision = "56536de5511128d0c7997aa2b792a4de575da536"
+  version = "v3.3.7"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/docker/distribution"
+  packages = [
+    "digestset",
+    "reference"
+  ]
+  revision = "749f6afb4572201e3c37325d0ffedb6f32be8950"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/docker/docker"
+  packages = [
+    "api",
+    "api/types",
+    "api/types/blkiodev",
+    "api/types/container",
+    "api/types/events",
+    "api/types/filters",
+    "api/types/image",
+    "api/types/mount",
+    "api/types/network",
+    "api/types/registry",
+    "api/types/strslice",
+    "api/types/swarm",
+    "api/types/swarm/runtime",
+    "api/types/time",
+    "api/types/versions",
+    "api/types/volume",
+    "client"
+  ]
+  revision = "692df4699c3dcbe4645e9b90cc40091b1f2519d4"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/docker/go-connections"
+  packages = [
+    "nat",
+    "sockets",
+    "tlsconfig"
+  ]
+  revision = "7395e3f8aa162843a74ed6d48e79627d9792ac55"
+
+[[projects]]
+  name = "github.com/docker/go-units"
+  packages = ["."]
+  revision = "47565b4f722fb6ceae66b95f853feed578a4a51c"
+  version = "v0.3.3"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/docker/spdystream"
+  packages = [
+    ".",
+    "spdy"
+  ]
+  revision = "bc6354cbbc295e925e4c611ffe90c1f287ee54db"
+
+[[projects]]
+  name = "github.com/emicklei/go-restful"
+  packages = [
+    ".",
+    "log"
+  ]
+  revision = "3658237ded108b4134956c1b3050349d93e7b895"
+  version = "v2.7.1"
+
+[[projects]]
+  name = "github.com/ghodss/yaml"
+  packages = ["."]
+  revision = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "github.com/gogo/protobuf"
+  packages = [
+    "gogoproto",
+    "proto",
+    "protoc-gen-gogo/descriptor",
+    "sortkeys"
+  ]
+  revision = "1adfc126b41513cc696b209667c8656ea7aac67c"
+  version = "v1.0.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/golang/glog"
+  packages = ["."]
+  revision = "23def4e6c14b4da8ac2ed8007337bc5eb5007998"
+
+[[projects]]
+  name = "github.com/golang/protobuf"
+  packages = [
+    "proto",
+    "ptypes",
+    "ptypes/any",
+    "ptypes/duration",
+    "ptypes/timestamp"
+  ]
+  revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265"
+  version = "v1.1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/google/gofuzz"
+  packages = ["."]
+  revision = "24818f796faf91cd76ec7bddd72458fbced7a6c1"
+
+[[projects]]
+  name = "github.com/googleapis/gnostic"
+  packages = [
+    "OpenAPIv2",
+    "compiler",
+    "extensions"
+  ]
+  revision = "7c663266750e7d82587642f65e60bc4083f1f84e"
+  version = "v0.2.0"
+
+[[projects]]
+  name = "github.com/gorilla/websocket"
+  packages = ["."]
+  revision = "ea4d1f681babbce9545c9c5f3d5194a789c89f5b"
+  version = "v1.2.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/howeyc/gopass"
+  packages = ["."]
+  revision = "bf9dde6d0d2c004a008c27aaee91170c786f6db8"
+
+[[projects]]
+  name = "github.com/imdario/mergo"
+  packages = ["."]
+  revision = "9316a62528ac99aaecb4e47eadd6dc8aa6533d58"
+  version = "v0.3.5"
+
+[[projects]]
+  name = "github.com/json-iterator/go"
+  packages = ["."]
+  revision = "ca39e5af3ece67bbcda3d0f4f56a8e24d9f2dad4"
+  version = "1.1.3"
+
+[[projects]]
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94"
+  version = "1.0.3"
+
+[[projects]]
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  revision = "1df9eeb2bb81f327b96228865c5687bc2194af3f"
+  version = "1.0.0"
+
+[[projects]]
+  name = "github.com/opencontainers/go-digest"
+  packages = ["."]
+  revision = "279bed98673dd5bef374d3b6e4b09e2af76183bf"
+  version = "v1.0.0-rc1"
+
+[[projects]]
+  name = "github.com/opencontainers/image-spec"
+  packages = [
+    "specs-go",
+    "specs-go/v1"
+  ]
+  revision = "d60099175f88c47cd379c4738d158884749ed235"
+  version = "v1.0.1"
+
+[[projects]]
+  name = "github.com/pkg/errors"
+  packages = ["."]
+  revision = "645ef00459ed84a119197bfb8d8205042c6df63d"
+  version = "v0.8.0"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
+  version = "v1.0.1"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/crypto"
+  packages = ["ssh/terminal"]
+  revision = "8ac0e0d97ce45cd83d1d7243c060cb8461dda5e9"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/net"
+  packages = [
+    "context",
+    "context/ctxhttp",
+    "http/httpguts",
+    "http2",
+    "http2/hpack",
+    "idna",
+    "internal/socks",
+    "internal/timeseries",
+    "proxy",
+    "trace"
+  ]
+  revision = "db08ff08e8622530d9ed3a0e8ac279f6d4c02196"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/sys"
+  packages = [
+    "unix",
+    "windows"
+  ]
+  revision = "8ee9f3e146b708d082f4bab861e5759d1edf8c00"
+
+[[projects]]
+  name = "golang.org/x/text"
+  packages = [
+    "collate",
+    "collate/build",
+    "internal/colltab",
+    "internal/gen",
+    "internal/tag",
+    "internal/triegen",
+    "internal/ucd",
+    "language",
+    "secure/bidirule",
+    "transform",
+    "unicode/bidi",
+    "unicode/cldr",
+    "unicode/norm",
+    "unicode/rangetable"
+  ]
+  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
+  version = "v0.3.0"
+
+[[projects]]
+  branch = "master"
+  name = "golang.org/x/time"
+  packages = ["rate"]
+  revision = "fbb02b2291d28baffd63558aa44b4b56f178d650"
+
+[[projects]]
+  branch = "master"
+  name = "google.golang.org/genproto"
+  packages = ["googleapis/rpc/status"]
+  revision = "32ee49c4dd805befd833990acba36cb75042378c"
+
+[[projects]]
+  name = "google.golang.org/grpc"
+  packages = [
+    ".",
+    "balancer",
+    "balancer/base",
+    "balancer/roundrobin",
+    "channelz",
+    "codes",
+    "connectivity",
+    "credentials",
+    "encoding",
+    "encoding/proto",
+    "grpclb/grpc_lb_v1/messages",
+    "grpclog",
+    "health/grpc_health_v1",
+    "internal",
+    "keepalive",
+    "metadata",
+    "naming",
+    "peer",
+    "resolver",
+    "resolver/dns",
+    "resolver/passthrough",
+    "stats",
+    "status",
+    "tap",
+    "transport"
+  ]
+  revision = "7a6a684ca69eb4cae85ad0a484f2e531598c047b"
+  version = "v1.12.2"
+
+[[projects]]
+  name = "gopkg.in/igm/sockjs-go.v2"
+  packages = ["sockjs"]
+  revision = "d276e9ffe5cc5c271b81198cc77a2adf6c4482d2"
+  version = "v2.0.0"
+
+[[projects]]
+  name = "gopkg.in/inf.v0"
+  packages = ["."]
+  revision = "d2d2541c53f18d2a059457998ce2876cc8e67cbf"
+  version = "v0.9.1"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
+  version = "v2.2.1"
+
+[[projects]]
+  name = "k8s.io/api"
+  packages = [
+    "admissionregistration/v1alpha1",
+    "admissionregistration/v1beta1",
+    "apps/v1",
+    "apps/v1beta1",
+    "apps/v1beta2",
+    "authentication/v1",
+    "authentication/v1beta1",
+    "authorization/v1",
+    "authorization/v1beta1",
+    "autoscaling/v1",
+    "autoscaling/v2beta1",
+    "batch/v1",
+    "batch/v1beta1",
+    "batch/v2alpha1",
+    "certificates/v1beta1",
+    "core/v1",
+    "events/v1beta1",
+    "extensions/v1beta1",
+    "networking/v1",
+    "policy/v1beta1",
+    "rbac/v1",
+    "rbac/v1alpha1",
+    "rbac/v1beta1",
+    "scheduling/v1alpha1",
+    "settings/v1alpha1",
+    "storage/v1",
+    "storage/v1alpha1",
+    "storage/v1beta1"
+  ]
+  revision = "73d903622b7391f3312dcbac6483fed484e185f8"
+  version = "kubernetes-1.10.0"
+
+[[projects]]
+  name = "k8s.io/apimachinery"
+  packages = [
+    "pkg/api/errors",
+    "pkg/api/meta",
+    "pkg/api/resource",
+    "pkg/apis/meta/v1",
+    "pkg/apis/meta/v1/unstructured",
+    "pkg/apis/meta/v1beta1",
+    "pkg/conversion",
+    "pkg/conversion/queryparams",
+    "pkg/fields",
+    "pkg/labels",
+    "pkg/runtime",
+    "pkg/runtime/schema",
+    "pkg/runtime/serializer",
+    "pkg/runtime/serializer/json",
+    "pkg/runtime/serializer/protobuf",
+    "pkg/runtime/serializer/recognizer",
+    "pkg/runtime/serializer/streaming",
+    "pkg/runtime/serializer/versioning",
+    "pkg/selection",
+    "pkg/types",
+    "pkg/util/clock",
+    "pkg/util/errors",
+    "pkg/util/framer",
+    "pkg/util/httpstream",
+    "pkg/util/httpstream/spdy",
+    "pkg/util/intstr",
+    "pkg/util/json",
+    "pkg/util/net",
+    "pkg/util/rand",
+    "pkg/util/remotecommand",
+    "pkg/util/runtime",
+    "pkg/util/sets",
+    "pkg/util/validation",
+    "pkg/util/validation/field",
+    "pkg/util/wait",
+    "pkg/util/yaml",
+    "pkg/version",
+    "pkg/watch",
+    "third_party/forked/golang/netutil",
+    "third_party/forked/golang/reflect"
+  ]
+  revision = "302974c03f7e50f16561ba237db776ab93594ef6"
+  version = "kubernetes-1.10.0"
+
+[[projects]]
+  name = "k8s.io/client-go"
+  packages = [
+    "discovery",
+    "kubernetes",
+    "kubernetes/scheme",
+    "kubernetes/typed/admissionregistration/v1alpha1",
+    "kubernetes/typed/admissionregistration/v1beta1",
+    "kubernetes/typed/apps/v1",
+    "kubernetes/typed/apps/v1beta1",
+    "kubernetes/typed/apps/v1beta2",
+    "kubernetes/typed/authentication/v1",
+    "kubernetes/typed/authentication/v1beta1",
+    "kubernetes/typed/authorization/v1",
+    "kubernetes/typed/authorization/v1beta1",
+    "kubernetes/typed/autoscaling/v1",
+    "kubernetes/typed/autoscaling/v2beta1",
+    "kubernetes/typed/batch/v1",
+    "kubernetes/typed/batch/v1beta1",
+    "kubernetes/typed/batch/v2alpha1",
+    "kubernetes/typed/certificates/v1beta1",
+    "kubernetes/typed/core/v1",
+    "kubernetes/typed/events/v1beta1",
+    "kubernetes/typed/extensions/v1beta1",
+    "kubernetes/typed/networking/v1",
+    "kubernetes/typed/policy/v1beta1",
+    "kubernetes/typed/rbac/v1",
+    "kubernetes/typed/rbac/v1alpha1",
+    "kubernetes/typed/rbac/v1beta1",
+    "kubernetes/typed/scheduling/v1alpha1",
+    "kubernetes/typed/settings/v1alpha1",
+    "kubernetes/typed/storage/v1",
+    "kubernetes/typed/storage/v1alpha1",
+    "kubernetes/typed/storage/v1beta1",
+    "pkg/apis/clientauthentication",
+    "pkg/apis/clientauthentication/v1alpha1",
+    "pkg/version",
+    "plugin/pkg/client/auth/exec",
+    "rest",
+    "rest/watch",
+    "tools/auth",
+    "tools/clientcmd",
+    "tools/clientcmd/api",
+    "tools/clientcmd/api/latest",
+    "tools/clientcmd/api/v1",
+    "tools/metrics",
+    "tools/reference",
+    "tools/remotecommand",
+    "transport",
+    "transport/spdy",
+    "util/cert",
+    "util/exec",
+    "util/flowcontrol",
+    "util/homedir",
+    "util/integer"
+  ]
+  revision = "23781f4d6632d88e869066eaebb743857aa1ef9b"
+  version = "v7.0.0"
+
+[[projects]]
+  name = "k8s.io/kubernetes"
+  packages = ["pkg/util/slice"]
+  revision = "5ca598b4ba5abb89bb773071ce452e33fb66339d"
+  version = "v1.10.4"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "3a835656d614522efea125721424042ef0f7159446907bedccef8fd249a69e0d"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/coreos/etcd"
+  version = "3.3.7"
+
+[[constraint]]
+  name = "github.com/docker/docker"
+  branch = "master"
+
+[[constraint]]
+  name = "github.com/emicklei/go-restful"
+  version = "2.7.1"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/golang/glog"
+
+[[constraint]]
+  name = "github.com/spf13/pflag"
+  version = "1.0.1"
+
+[[constraint]]
+  name = "gopkg.in/igm/sockjs-go.v2"
+  version = "2.0.0"
+
+[[constraint]]
+  name = "gopkg.in/yaml.v2"
+  version = "2.2.1"
+
+[[constraint]]
+  name = "k8s.io/api"
+  version = "kubernetes-1.10.0"
+
+[[constraint]]
+  name = "k8s.io/apimachinery"
+  version = "kubernetes-1.10.0"
+
+[[constraint]]
+  name = "k8s.io/client-go"
+  version = "7.0.0"
+
+[[constraint]]
+  name = "k8s.io/kubernetes"
+  version = "1.10.4"
+
+[prune]
+  go-tests = true
+  unused-packages = true
+
+# To use reference package:
+#   vendor/github.com/docker/docker/client/container_commit.go:17: undefined: reference.ParseNormalizedNamed
+#   vendor/github.com/docker/docker/client/container_commit.go:25: undefined: reference.TagNameOnly
+#   vendor/github.com/docker/docker/client/container_commit.go:30: undefined: reference.FamiliarNam
+[[override]]
+  name = "github.com/docker/distribution"
+  branch = "master"
+
+# To use reference package:
+#   vendor/github.com/docker/docker/registry/registry.go:30: cannot call non-function tlsconfig.ServerDefault (type tls.Config)
+#   vendor/github.com/docker/docker/registry/registry.go:66: undefined: tlsconfig.SystemCertPool
+#   vendor/github.com/docker/docker/registry/registry.go:168: cannot call non-function tlsconfig.ServerDefault (type tls.Config)
+#   vendor/github.com/docker/docker/registry/service_v2.go:11: cannot call non-function tlsconfig.ServerDefault (type tls.Config)
+[[override]]
+  name = "github.com/docker/go-connections"
+  branch = "master"

Makefile

@@ -7,7 +7,7 @@ TRAG.Gopkg:=kubesphere.io/kubesphere
 TRAG.Version:=$(TRAG.Gopkg)/pkg/version
 
 DOCKER_TAGS=latest
-RUN_IN_DOCKER:=docker run -it -v `pwd`:/go/src/$(TRAG.Gopkg) -v `pwd`/tmp/cache:/root/.cache/go-build  -w /go/src/$(TRAG.Gopkg) -e GOBIN=/go/src/$(TRAG.Gopkg)/tmp/bin -e USER_ID=`id -u` -e GROUP_ID=`id -g` kubesphere/kubesphere-builder
+RUN_IN_DOCKER:=docker run -it --rm -v `pwd`:/go/src/$(TRAG.Gopkg) -v `pwd`/tmp/cache:/root/.cache/go-build  -w /go/src/$(TRAG.Gopkg) -e GOBIN=/go/src/$(TRAG.Gopkg)/tmp/bin -e USER_ID=`id -u` -e GROUP_ID=`id -g` kubesphere/kubesphere-builder
 GO_FMT:=goimports -l -w -e -local=kubesphere -srcdir=/go/src/$(TRAG.Gopkg)
 GO_FILES:=./cmd ./pkg
 
@@ -65,6 +65,7 @@ generate:
 
 .PHONY: fmt-all
 fmt-all:
+	mkdir -p ./tmp/bin && cp -r ./install ./tmp/
 	$(RUN_IN_DOCKER) $(GO_FMT) $(GO_FILES)
 	@echo "fmt done"
 

docker-compose.yml

-# Copyright 2018 The KubeSphere Authors. All rights reserved.
-# Use of this source code is governed by a Apache license
-# that can be found in the LICENSE file.
-
-

pkg/models/kubeconfig.go

@@ -245,7 +245,7 @@ func CreateKubeConfig(user string) error {
 	}
 
 	data := map[string]string{"config": string(config)}
-	var configmap = v1.ConfigMap{metav1.TypeMeta{Kind: "Configmap", APIVersion: "v1"}, metav1.ObjectMeta{Name: user}, data}
+	var configmap = v1.ConfigMap{TypeMeta: metav1.TypeMeta{Kind: "Configmap", APIVersion: "v1"}, ObjectMeta: metav1.ObjectMeta{Name: user}, Data: data}
 	_, err = k8sClient.CoreV1().ConfigMaps(kubectlNamespace).Create(&configmap)
 	if err != nil {
 		glog.Errorln(err)

pkg/models/roles.go

@@ -139,7 +139,7 @@ func GetRoles(username string) ([]v1.Role, error) {
 				if roleBinding.RoleRef.Kind == ClusterRoleKind {
 					clusterRole, err := k8s.RbacV1().ClusterRoles().Get(roleBinding.RoleRef.Name, meta_v1.GetOptions{})
 					if err == nil {
-						var role = v1.Role(*clusterRole)
+						var role = v1.Role{TypeMeta: (*clusterRole).TypeMeta, ObjectMeta: (*clusterRole).ObjectMeta, Rules: (*clusterRole).Rules}
 						role.Namespace = roleBinding.Namespace
 						roles = append(roles, role)
 						break

vendor/github.com/Microsoft/go-winio/.gitignore

+*.exe

vendor/github.com/Microsoft/go-winio/ea.go

+package winio
+
+import (
+	"bytes"
+	"encoding/binary"
+	"errors"
+)
+
+type fileFullEaInformation struct {
+	NextEntryOffset uint32
+	Flags           uint8
+	NameLength      uint8
+	ValueLength     uint16
+}
+
+var (
+	fileFullEaInformationSize = binary.Size(&fileFullEaInformation{})
+
+	errInvalidEaBuffer = errors.New("invalid extended attribute buffer")
+	errEaNameTooLarge  = errors.New("extended attribute name too large")
+	errEaValueTooLarge = errors.New("extended attribute value too large")
+)
+
+// ExtendedAttribute represents a single Windows EA.
+type ExtendedAttribute struct {
+	Name  string
+	Value []byte
+	Flags uint8
+}
+
+func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
+	var info fileFullEaInformation
+	err = binary.Read(bytes.NewReader(b), binary.LittleEndian, &info)
+	if err != nil {
+		err = errInvalidEaBuffer
+		return
+	}
+
+	nameOffset := fileFullEaInformationSize
+	nameLen := int(info.NameLength)
+	valueOffset := nameOffset + int(info.NameLength) + 1
+	valueLen := int(info.ValueLength)
+	nextOffset := int(info.NextEntryOffset)
+	if valueLen+valueOffset > len(b) || nextOffset < 0 || nextOffset > len(b) {
+		err = errInvalidEaBuffer
+		return
+	}
+
+	ea.Name = string(b[nameOffset : nameOffset+nameLen])
+	ea.Value = b[valueOffset : valueOffset+valueLen]
+	ea.Flags = info.Flags
+	if info.NextEntryOffset != 0 {
+		nb = b[info.NextEntryOffset:]
+	}
+	return
+}
+
+// DecodeExtendedAttributes decodes a list of EAs from a FILE_FULL_EA_INFORMATION
+// buffer retrieved from BackupRead, ZwQueryEaFile, etc.
+func DecodeExtendedAttributes(b []byte) (eas []ExtendedAttribute, err error) {
+	for len(b) != 0 {
+		ea, nb, err := parseEa(b)
+		if err != nil {
+			return nil, err
+		}
+
+		eas = append(eas, ea)
+		b = nb
+	}
+	return
+}
+
+func writeEa(buf *bytes.Buffer, ea *ExtendedAttribute, last bool) error {
+	if int(uint8(len(ea.Name))) != len(ea.Name) {
+		return errEaNameTooLarge
+	}
+	if int(uint16(len(ea.Value))) != len(ea.Value) {
+		return errEaValueTooLarge
+	}
+	entrySize := uint32(fileFullEaInformationSize + len(ea.Name) + 1 + len(ea.Value))
+	withPadding := (entrySize + 3) &^ 3
+	nextOffset := uint32(0)
+	if !last {
+		nextOffset = withPadding
+	}
+	info := fileFullEaInformation{
+		NextEntryOffset: nextOffset,
+		Flags:           ea.Flags,
+		NameLength:      uint8(len(ea.Name)),
+		ValueLength:     uint16(len(ea.Value)),
+	}
+
+	err := binary.Write(buf, binary.LittleEndian, &info)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write([]byte(ea.Name))
+	if err != nil {
+		return err
+	}
+
+	err = buf.WriteByte(0)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write(ea.Value)
+	if err != nil {
+		return err
+	}
+
+	_, err = buf.Write([]byte{0, 0, 0}[0 : withPadding-entrySize])
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// EncodeExtendedAttributes encodes a list of EAs into a FILE_FULL_EA_INFORMATION
+// buffer for use with BackupWrite, ZwSetEaFile, etc.
+func EncodeExtendedAttributes(eas []ExtendedAttribute) ([]byte, error) {
+	var buf bytes.Buffer
+	for i := range eas {
+		last := false
+		if i == len(eas)-1 {
+			last = true
+		}
+
+		err := writeEa(&buf, &eas[i], last)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return buf.Bytes(), nil
+}

vendor/github.com/Microsoft/go-winio/file.go

+// +build windows
+
+package winio
+
+import (
+	"errors"
+	"io"
+	"runtime"
+	"sync"
+	"sync/atomic"
+	"syscall"
+	"time"
+)
+
+//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
+//sys createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) = CreateIoCompletionPort
+//sys getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
+//sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
+
+type atomicBool int32
+
+func (b *atomicBool) isSet() bool { return atomic.LoadInt32((*int32)(b)) != 0 }
+func (b *atomicBool) setFalse()   { atomic.StoreInt32((*int32)(b), 0) }
+func (b *atomicBool) setTrue()    { atomic.StoreInt32((*int32)(b), 1) }
+func (b *atomicBool) swap(new bool) bool {
+	var newInt int32
+	if new {
+		newInt = 1
+	}
+	return atomic.SwapInt32((*int32)(b), newInt) == 1
+}
+
+const (
+	cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
+	cFILE_SKIP_SET_EVENT_ON_HANDLE        = 2
+)
+
+var (
+	ErrFileClosed = errors.New("file has already been closed")
+	ErrTimeout    = &timeoutError{}
+)
+
+type timeoutError struct{}
+
+func (e *timeoutError) Error() string   { return "i/o timeout" }
+func (e *timeoutError) Timeout() bool   { return true }
+func (e *timeoutError) Temporary() bool { return true }
+
+type timeoutChan chan struct{}
+
+var ioInitOnce sync.Once
+var ioCompletionPort syscall.Handle
+
+// ioResult contains the result of an asynchronous IO operation
+type ioResult struct {
+	bytes uint32
+	err   error
+}
+
+// ioOperation represents an outstanding asynchronous Win32 IO
+type ioOperation struct {
+	o  syscall.Overlapped
+	ch chan ioResult
+}
+
+func initIo() {
+	h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
+	if err != nil {
+		panic(err)
+	}
+	ioCompletionPort = h
+	go ioCompletionProcessor(h)
+}
+
+// win32File implements Reader, Writer, and Closer on a Win32 handle without blocking in a syscall.
+// It takes ownership of this handle and will close it if it is garbage collected.
+type win32File struct {
+	handle        syscall.Handle
+	wg            sync.WaitGroup
+	wgLock        sync.RWMutex
+	closing       atomicBool
+	readDeadline  deadlineHandler
+	writeDeadline deadlineHandler
+}
+
+type deadlineHandler struct {
+	setLock     sync.Mutex
+	channel     timeoutChan
+	channelLock sync.RWMutex
+	timer       *time.Timer
+	timedout    atomicBool
+}
+
+// makeWin32File makes a new win32File from an existing file handle
+func makeWin32File(h syscall.Handle) (*win32File, error) {
+	f := &win32File{handle: h}
+	ioInitOnce.Do(initIo)
+	_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
+	if err != nil {
+		return nil, err
+	}
+	err = setFileCompletionNotificationModes(h, cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS|cFILE_SKIP_SET_EVENT_ON_HANDLE)
+	if err != nil {
+		return nil, err
+	}
+	f.readDeadline.channel = make(timeoutChan)
+	f.writeDeadline.channel = make(timeoutChan)
+	return f, nil
+}
+
+func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
+	return makeWin32File(h)
+}
+
+// closeHandle closes the resources associated with a Win32 handle
+func (f *win32File) closeHandle() {
+	f.wgLock.Lock()
+	// Atomically set that we are closing, releasing the resources only once.
+	if !f.closing.swap(true) {
+		f.wgLock.Unlock()
+		// cancel all IO and wait for it to complete
+		cancelIoEx(f.handle, nil)
+		f.wg.Wait()
+		// at this point, no new IO can start
+		syscall.Close(f.handle)
+		f.handle = 0
+	} else {
+		f.wgLock.Unlock()
+	}
+}
+
+// Close closes a win32File.
+func (f *win32File) Close() error {
+	f.closeHandle()
+	return nil
+}
+
+// prepareIo prepares for a new IO operation.
+// The caller must call f.wg.Done() when the IO is finished, prior to Close() returning.
+func (f *win32File) prepareIo() (*ioOperation, error) {
+	f.wgLock.RLock()
+	if f.closing.isSet() {
+		f.wgLock.RUnlock()
+		return nil, ErrFileClosed
+	}
+	f.wg.Add(1)
+	f.wgLock.RUnlock()
+	c := &ioOperation{}
+	c.ch = make(chan ioResult)
+	return c, nil
+}
+
+// ioCompletionProcessor processes completed async IOs forever
+func ioCompletionProcessor(h syscall.Handle) {
+	for {
+		var bytes uint32
+		var key uintptr
+		var op *ioOperation
+		err := getQueuedCompletionStatus(h, &bytes, &key, &op, syscall.INFINITE)
+		if op == nil {
+			panic(err)
+		}
+		op.ch <- ioResult{bytes, err}
+	}
+}
+
+// asyncIo processes the return value from ReadFile or WriteFile, blocking until
+// the operation has actually completed.
+func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
+	if err != syscall.ERROR_IO_PENDING {
+		return int(bytes), err
+	}
+
+	if f.closing.isSet() {
+		cancelIoEx(f.handle, &c.o)
+	}
+
+	var timeout timeoutChan
+	if d != nil {
+		d.channelLock.Lock()
+		timeout = d.channel
+		d.channelLock.Unlock()
+	}
+
+	var r ioResult
+	select {
+	case r = <-c.ch:
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			if f.closing.isSet() {
+				err = ErrFileClosed
+			}
+		}
+	case <-timeout:
+		cancelIoEx(f.handle, &c.o)
+		r = <-c.ch
+		err = r.err
+		if err == syscall.ERROR_OPERATION_ABORTED {
+			err = ErrTimeout
+		}
+	}
+
+	// runtime.KeepAlive is needed, as c is passed via native
+	// code to ioCompletionProcessor, c must remain alive
+	// until the channel read is complete.
+	runtime.KeepAlive(c)
+	return int(r.bytes), err
+}
+
+// Read reads from a file handle.
+func (f *win32File) Read(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	defer f.wg.Done()
+
+	if f.readDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
+	var bytes uint32
+	err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
+	n, err := f.asyncIo(c, &f.readDeadline, bytes, err)
+	runtime.KeepAlive(b)
+
+	// Handle EOF conditions.
+	if err == nil && n == 0 && len(b) != 0 {
+		return 0, io.EOF
+	} else if err == syscall.ERROR_BROKEN_PIPE {
+		return 0, io.EOF
+	} else {
+		return n, err
+	}
+}
+
+// Write writes to a file handle.
+func (f *win32File) Write(b []byte) (int, error) {
+	c, err := f.prepareIo()
+	if err != nil {
+		return 0, err
+	}
+	defer f.wg.Done()
+
+	if f.writeDeadline.timedout.isSet() {
+		return 0, ErrTimeout
+	}
+
+	var bytes uint32
+	err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
+	n, err := f.asyncIo(c, &f.writeDeadline, bytes, err)
+	runtime.KeepAlive(b)
+	return n, err
+}
+
+func (f *win32File) SetReadDeadline(deadline time.Time) error {
+	return f.readDeadline.set(deadline)
+}
+
+func (f *win32File) SetWriteDeadline(deadline time.Time) error {
+	return f.writeDeadline.set(deadline)
+}
+
+func (f *win32File) Flush() error {
+	return syscall.FlushFileBuffers(f.handle)
+}
+
+func (d *deadlineHandler) set(deadline time.Time) error {
+	d.setLock.Lock()
+	defer d.setLock.Unlock()
+
+	if d.timer != nil {
+		if !d.timer.Stop() {
+			<-d.channel
+		}
+		d.timer = nil
+	}
+	d.timedout.setFalse()
+
+	select {
+	case <-d.channel:
+		d.channelLock.Lock()
+		d.channel = make(chan struct{})
+		d.channelLock.Unlock()
+	default:
+	}
+
+	if deadline.IsZero() {
+		return nil
+	}
+
+	timeoutIO := func() {
+		d.timedout.setTrue()
+		close(d.channel)
+	}
+
+	now := time.Now()
+	duration := deadline.Sub(now)
+	if deadline.After(now) {
+		// Deadline is in the future, set a timer to wait
+		d.timer = time.AfterFunc(duration, timeoutIO)
+	} else {
+		// Deadline is in the past. Cancel all pending IO now.
+		timeoutIO()
+	}
+	return nil
+}

vendor/github.com/Microsoft/go-winio/zsyscall_windows.go

+// MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
+
+package winio
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
+var (
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
+
+	procCancelIoEx                                           = modkernel32.NewProc("CancelIoEx")
+	procCreateIoCompletionPort                               = modkernel32.NewProc("CreateIoCompletionPort")
+	procGetQueuedCompletionStatus                            = modkernel32.NewProc("GetQueuedCompletionStatus")
+	procSetFileCompletionNotificationModes                   = modkernel32.NewProc("SetFileCompletionNotificationModes")
+	procConnectNamedPipe                                     = modkernel32.NewProc("ConnectNamedPipe")
+	procCreateNamedPipeW                                     = modkernel32.NewProc("CreateNamedPipeW")
+	procCreateFileW                                          = modkernel32.NewProc("CreateFileW")
+	procWaitNamedPipeW                                       = modkernel32.NewProc("WaitNamedPipeW")
+	procGetNamedPipeInfo                                     = modkernel32.NewProc("GetNamedPipeInfo")
+	procGetNamedPipeHandleStateW                             = modkernel32.NewProc("GetNamedPipeHandleStateW")
+	procLocalAlloc                                           = modkernel32.NewProc("LocalAlloc")
+	procLookupAccountNameW                                   = modadvapi32.NewProc("LookupAccountNameW")
+	procConvertSidToStringSidW                               = modadvapi32.NewProc("ConvertSidToStringSidW")
+	procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
+	procConvertSecurityDescriptorToStringSecurityDescriptorW = modadvapi32.NewProc("ConvertSecurityDescriptorToStringSecurityDescriptorW")
+	procLocalFree                                            = modkernel32.NewProc("LocalFree")
+	procGetSecurityDescriptorLength                          = modadvapi32.NewProc("GetSecurityDescriptorLength")
+	procGetFileInformationByHandleEx                         = modkernel32.NewProc("GetFileInformationByHandleEx")
+	procSetFileInformationByHandle                           = modkernel32.NewProc("SetFileInformationByHandle")
+	procAdjustTokenPrivileges                                = modadvapi32.NewProc("AdjustTokenPrivileges")
+	procImpersonateSelf                                      = modadvapi32.NewProc("ImpersonateSelf")
+	procRevertToSelf                                         = modadvapi32.NewProc("RevertToSelf")
+	procOpenThreadToken                                      = modadvapi32.NewProc("OpenThreadToken")
+	procGetCurrentThread                                     = modkernel32.NewProc("GetCurrentThread")
+	procLookupPrivilegeValueW                                = modadvapi32.NewProc("LookupPrivilegeValueW")
+	procLookupPrivilegeNameW                                 = modadvapi32.NewProc("LookupPrivilegeNameW")
+	procLookupPrivilegeDisplayNameW                          = modadvapi32.NewProc("LookupPrivilegeDisplayNameW")
+	procBackupRead                                           = modkernel32.NewProc("BackupRead")
+	procBackupWrite                                          = modkernel32.NewProc("BackupWrite")
+)
+
+func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procCancelIoEx.Addr(), 2, uintptr(file), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall6(procCreateIoCompletionPort.Addr(), 4, uintptr(file), uintptr(port), uintptr(key), uintptr(threadCount), 0, 0)
+	newport = syscall.Handle(r0)
+	if newport == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(port), uintptr(unsafe.Pointer(bytes)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(o)), uintptr(timeout), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetFileCompletionNotificationModes.Addr(), 2, uintptr(h), uintptr(flags), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procConnectNamedPipe.Addr(), 2, uintptr(pipe), uintptr(unsafe.Pointer(o)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createNamedPipe(_p0, flags, pipeMode, maxInstances, outSize, inSize, defaultTimeout, sa)
+}
+
+func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateNamedPipeW.Addr(), 8, uintptr(unsafe.Pointer(name)), uintptr(flags), uintptr(pipeMode), uintptr(maxInstances), uintptr(outSize), uintptr(inSize), uintptr(defaultTimeout), uintptr(unsafe.Pointer(sa)), 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _createFile(_p0, access, mode, sa, createmode, attrs, templatefile)
+}
+
+func _createFile(name *uint16, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
+	r0, _, e1 := syscall.Syscall9(procCreateFileW.Addr(), 7, uintptr(unsafe.Pointer(name)), uintptr(access), uintptr(mode), uintptr(unsafe.Pointer(sa)), uintptr(createmode), uintptr(attrs), uintptr(templatefile), 0, 0)
+	handle = syscall.Handle(r0)
+	if handle == syscall.InvalidHandle {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func waitNamedPipe(name string, timeout uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _waitNamedPipe(_p0, timeout)
+}
+
+func _waitNamedPipe(name *uint16, timeout uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procWaitNamedPipeW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(timeout), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetNamedPipeInfo.Addr(), 5, uintptr(pipe), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(outSize)), uintptr(unsafe.Pointer(inSize)), uintptr(unsafe.Pointer(maxInstances)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procGetNamedPipeHandleStateW.Addr(), 7, uintptr(pipe), uintptr(unsafe.Pointer(state)), uintptr(unsafe.Pointer(curInstances)), uintptr(unsafe.Pointer(maxCollectionCount)), uintptr(unsafe.Pointer(collectDataTimeout)), uintptr(unsafe.Pointer(userName)), uintptr(maxUserNameSize), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func localAlloc(uFlags uint32, length uint32) (ptr uintptr) {
+	r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(uFlags), uintptr(length), 0)
+	ptr = uintptr(r0)
+	return
+}
+
+func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(accountName)
+	if err != nil {
+		return
+	}
+	return _lookupAccountName(systemName, _p0, sid, sidSize, refDomain, refDomainSize, sidNameUse)
+}
+
+func _lookupAccountName(systemName *uint16, accountName *uint16, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall9(procLookupAccountNameW.Addr(), 7, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(accountName)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(sidSize)), uintptr(unsafe.Pointer(refDomain)), uintptr(unsafe.Pointer(refDomainSize)), uintptr(unsafe.Pointer(sidNameUse)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSidToStringSid(sid *byte, str **uint16) (err error) {
+	r1, _, e1 := syscall.Syscall(procConvertSidToStringSidW.Addr(), 2, uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(str)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(str)
+	if err != nil {
+		return
+	}
+	return _convertStringSecurityDescriptorToSecurityDescriptor(_p0, revision, sd, size)
+}
+
+func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision uint32, sd *uintptr, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertStringSecurityDescriptorToSecurityDescriptorW.Addr(), 4, uintptr(unsafe.Pointer(str)), uintptr(revision), uintptr(unsafe.Pointer(sd)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procConvertSecurityDescriptorToStringSecurityDescriptorW.Addr(), 5, uintptr(unsafe.Pointer(sd)), uintptr(revision), uintptr(secInfo), uintptr(unsafe.Pointer(sddl)), uintptr(unsafe.Pointer(sddlSize)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func localFree(mem uintptr) {
+	syscall.Syscall(procLocalFree.Addr(), 1, uintptr(mem), 0, 0)
+	return
+}
+
+func getSecurityDescriptorLength(sd uintptr) (len uint32) {
+	r0, _, _ := syscall.Syscall(procGetSecurityDescriptorLength.Addr(), 1, uintptr(sd), 0, 0)
+	len = uint32(r0)
+	return
+}
+
+func getFileInformationByHandleEx(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func setFileInformationByHandle(h syscall.Handle, class uint32, buffer *byte, size uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procSetFileInformationByHandle.Addr(), 4, uintptr(h), uintptr(class), uintptr(unsafe.Pointer(buffer)), uintptr(size), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) {
+	var _p0 uint32
+	if releaseAll {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r0, _, e1 := syscall.Syscall6(procAdjustTokenPrivileges.Addr(), 6, uintptr(token), uintptr(_p0), uintptr(unsafe.Pointer(input)), uintptr(outputSize), uintptr(unsafe.Pointer(output)), uintptr(unsafe.Pointer(requiredSize)))
+	success = r0 != 0
+	if true {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func impersonateSelf(level uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procImpersonateSelf.Addr(), 1, uintptr(level), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func revertToSelf() (err error) {
+	r1, _, e1 := syscall.Syscall(procRevertToSelf.Addr(), 0, 0, 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func openThreadToken(thread syscall.Handle, accessMask uint32, openAsSelf bool, token *windows.Token) (err error) {
+	var _p0 uint32
+	if openAsSelf {
+		_p0 = 1
+	} else {
+		_p0 = 0
+	}
+	r1, _, e1 := syscall.Syscall6(procOpenThreadToken.Addr(), 4, uintptr(thread), uintptr(accessMask), uintptr(_p0), uintptr(unsafe.Pointer(token)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func getCurrentThread() (h syscall.Handle) {
+	r0, _, _ := syscall.Syscall(procGetCurrentThread.Addr(), 0, 0, 0, 0)
+	h = syscall.Handle(r0)
+	return
+}
+
+func lookupPrivilegeValue(systemName string, name string, luid *uint64) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, err = syscall.UTF16PtrFromString(name)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeValue(_p0, _p1, luid)
+}
+
+func _lookupPrivilegeValue(systemName *uint16, name *uint16, luid *uint64) (err error) {
+	r1, _, e1 := syscall.Syscall(procLookupPrivilegeValueW.Addr(), 3, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(luid)))
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeName(systemName string, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeName(_p0, luid, buffer, size)
+}
+
+func _lookupPrivilegeName(systemName *uint16, luid *uint64, buffer *uint16, size *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeNameW.Addr(), 4, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(luid)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	var _p0 *uint16
+	_p0, err = syscall.UTF16PtrFromString(systemName)
+	if err != nil {
+		return
+	}
+	return _lookupPrivilegeDisplayName(_p0, name, buffer, size, languageId)
+}
+
+func _lookupPrivilegeDisplayName(systemName *uint16, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall6(procLookupPrivilegeDisplayNameW.Addr(), 5, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(size)), uintptr(unsafe.Pointer(languageId)), 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupRead.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesRead)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
+func backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) {
+	var _p0 *byte
+	if len(b) > 0 {
+		_p0 = &b[0]
+	}
+	var _p1 uint32
+	if abort {
+		_p1 = 1
+	} else {
+		_p1 = 0
+	}
+	var _p2 uint32
+	if processSecurity {
+		_p2 = 1
+	} else {
+		_p2 = 0
+	}
+	r1, _, e1 := syscall.Syscall9(procBackupWrite.Addr(), 7, uintptr(h), uintptr(unsafe.Pointer(_p0)), uintptr(len(b)), uintptr(unsafe.Pointer(bytesWritten)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(context)), 0, 0)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = errnoErr(e1)
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}

vendor/github.com/PuerkitoBio/purell/LICENSE

-Copyright (c) 2012, Martin Angers
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
-
-* Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/PuerkitoBio/purell/purell.go

-/*
-Package purell offers URL normalization as described on the wikipedia page:
-http://en.wikipedia.org/wiki/URL_normalization
-*/
-package purell
-
-import (
-	"bytes"
-	"fmt"
-	"net/url"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
-
-	"github.com/PuerkitoBio/urlesc"
-	"golang.org/x/net/idna"
-	"golang.org/x/text/secure/precis"
-	"golang.org/x/text/unicode/norm"
-)
-
-// A set of normalization flags determines how a URL will
-// be normalized.
-type NormalizationFlags uint
-
-const (
-	// Safe normalizations
-	FlagLowercaseScheme           NormalizationFlags = 1 << iota // HTTP://host -> http://host, applied by default in Go1.1
-	FlagLowercaseHost                                            // http://HOST -> http://host
-	FlagUppercaseEscapes                                         // http://host/t%ef -> http://host/t%EF
-	FlagDecodeUnnecessaryEscapes                                 // http://host/t%41 -> http://host/tA
-	FlagEncodeNecessaryEscapes                                   // http://host/!"#$ -> http://host/%21%22#$
-	FlagRemoveDefaultPort                                        // http://host:80 -> http://host
-	FlagRemoveEmptyQuerySeparator                                // http://host/path? -> http://host/path
-
-	// Usually safe normalizations
-	FlagRemoveTrailingSlash // http://host/path/ -> http://host/path
-	FlagAddTrailingSlash    // http://host/path -> http://host/path/ (should choose only one of these add/remove trailing slash flags)
-	FlagRemoveDotSegments   // http://host/path/./a/b/../c -> http://host/path/a/c
-
-	// Unsafe normalizations
-	FlagRemoveDirectoryIndex   // http://host/path/index.html -> http://host/path/
-	FlagRemoveFragment         // http://host/path#fragment -> http://host/path
-	FlagForceHTTP              // https://host -> http://host
-	FlagRemoveDuplicateSlashes // http://host/path//a///b -> http://host/path/a/b
-	FlagRemoveWWW              // http://www.host/ -> http://host/
-	FlagAddWWW                 // http://host/ -> http://www.host/ (should choose only one of these add/remove WWW flags)
-	FlagSortQuery              // http://host/path?c=3&b=2&a=1&b=1 -> http://host/path?a=1&b=1&b=2&c=3
-
-	// Normalizations not in the wikipedia article, required to cover tests cases
-	// submitted by jehiah
-	FlagDecodeDWORDHost           // http://1113982867 -> http://66.102.7.147
-	FlagDecodeOctalHost           // http://0102.0146.07.0223 -> http://66.102.7.147
-	FlagDecodeHexHost             // http://0x42660793 -> http://66.102.7.147
-	FlagRemoveUnnecessaryHostDots // http://.host../path -> http://host/path
-	FlagRemoveEmptyPortSeparator  // http://host:/path -> http://host/path
-
-	// Convenience set of safe normalizations
-	FlagsSafe NormalizationFlags = FlagLowercaseHost | FlagLowercaseScheme | FlagUppercaseEscapes | FlagDecodeUnnecessaryEscapes | FlagEncodeNecessaryEscapes | FlagRemoveDefaultPort | FlagRemoveEmptyQuerySeparator
-
-	// For convenience sets, "greedy" uses the "remove trailing slash" and "remove www. prefix" flags,
-	// while "non-greedy" uses the "add (or keep) the trailing slash" and "add www. prefix".
-
-	// Convenience set of usually safe normalizations (includes FlagsSafe)
-	FlagsUsuallySafeGreedy    NormalizationFlags = FlagsSafe | FlagRemoveTrailingSlash | FlagRemoveDotSegments
-	FlagsUsuallySafeNonGreedy NormalizationFlags = FlagsSafe | FlagAddTrailingSlash | FlagRemoveDotSegments
-
-	// Convenience set of unsafe normalizations (includes FlagsUsuallySafe)
-	FlagsUnsafeGreedy    NormalizationFlags = FlagsUsuallySafeGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagRemoveWWW | FlagSortQuery
-	FlagsUnsafeNonGreedy NormalizationFlags = FlagsUsuallySafeNonGreedy | FlagRemoveDirectoryIndex | FlagRemoveFragment | FlagForceHTTP | FlagRemoveDuplicateSlashes | FlagAddWWW | FlagSortQuery
-
-	// Convenience set of all available flags
-	FlagsAllGreedy    = FlagsUnsafeGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
-	FlagsAllNonGreedy = FlagsUnsafeNonGreedy | FlagDecodeDWORDHost | FlagDecodeOctalHost | FlagDecodeHexHost | FlagRemoveUnnecessaryHostDots | FlagRemoveEmptyPortSeparator
-)
-
-const (
-	defaultHttpPort  = ":80"
-	defaultHttpsPort = ":443"
-)
-
-// Regular expressions used by the normalizations
-var rxPort = regexp.MustCompile(`(:\d+)/?$`)
-var rxDirIndex = regexp.MustCompile(`(^|/)((?:default|index)\.\w{1,4})$`)
-var rxDupSlashes = regexp.MustCompile(`/{2,}`)
-var rxDWORDHost = regexp.MustCompile(`^(\d+)((?:\.+)?(?:\:\d*)?)$`)
-var rxOctalHost = regexp.MustCompile(`^(0\d*)\.(0\d*)\.(0\d*)\.(0\d*)((?:\.+)?(?:\:\d*)?)$`)
-var rxHexHost = regexp.MustCompile(`^0x([0-9A-Fa-f]+)((?:\.+)?(?:\:\d*)?)$`)
-var rxHostDots = regexp.MustCompile(`^(.+?)(:\d+)?$`)
-var rxEmptyPort = regexp.MustCompile(`:+$`)
-
-// Map of flags to implementation function.
-// FlagDecodeUnnecessaryEscapes has no action, since it is done automatically
-// by parsing the string as an URL. Same for FlagUppercaseEscapes and FlagRemoveEmptyQuerySeparator.
-
-// Since maps have undefined traversing order, make a slice of ordered keys
-var flagsOrder = []NormalizationFlags{
-	FlagLowercaseScheme,
-	FlagLowercaseHost,
-	FlagRemoveDefaultPort,
-	FlagRemoveDirectoryIndex,
-	FlagRemoveDotSegments,
-	FlagRemoveFragment,
-	FlagForceHTTP, // Must be after remove default port (because https=443/http=80)
-	FlagRemoveDuplicateSlashes,
-	FlagRemoveWWW,
-	FlagAddWWW,
-	FlagSortQuery,
-	FlagDecodeDWORDHost,
-	FlagDecodeOctalHost,
-	FlagDecodeHexHost,
-	FlagRemoveUnnecessaryHostDots,
-	FlagRemoveEmptyPortSeparator,
-	FlagRemoveTrailingSlash, // These two (add/remove trailing slash) must be last
-	FlagAddTrailingSlash,
-}
-
-// ... and then the map, where order is unimportant
-var flags = map[NormalizationFlags]func(*url.URL){
-	FlagLowercaseScheme:           lowercaseScheme,
-	FlagLowercaseHost:             lowercaseHost,
-	FlagRemoveDefaultPort:         removeDefaultPort,
-	FlagRemoveDirectoryIndex:      removeDirectoryIndex,
-	FlagRemoveDotSegments:         removeDotSegments,
-	FlagRemoveFragment:            removeFragment,
-	FlagForceHTTP:                 forceHTTP,
-	FlagRemoveDuplicateSlashes:    removeDuplicateSlashes,
-	FlagRemoveWWW:                 removeWWW,
-	FlagAddWWW:                    addWWW,
-	FlagSortQuery:                 sortQuery,
-	FlagDecodeDWORDHost:           decodeDWORDHost,
-	FlagDecodeOctalHost:           decodeOctalHost,
-	FlagDecodeHexHost:             decodeHexHost,
-	FlagRemoveUnnecessaryHostDots: removeUnncessaryHostDots,
-	FlagRemoveEmptyPortSeparator:  removeEmptyPortSeparator,
-	FlagRemoveTrailingSlash:       removeTrailingSlash,
-	FlagAddTrailingSlash:          addTrailingSlash,
-}
-
-// MustNormalizeURLString returns the normalized string, and panics if an error occurs.
-// It takes an URL string as input, as well as the normalization flags.
-func MustNormalizeURLString(u string, f NormalizationFlags) string {
-	result, e := NormalizeURLString(u, f)
-	if e != nil {
-		panic(e)
-	}
-	return result
-}
-
-// NormalizeURLString returns the normalized string, or an error if it can't be parsed into an URL object.
-// It takes an URL string as input, as well as the normalization flags.
-func NormalizeURLString(u string, f NormalizationFlags) (string, error) {
-	if parsed, e := url.Parse(u); e != nil {
-		return "", e
-	} else {
-		options := make([]precis.Option, 1, 3)
-		options[0] = precis.IgnoreCase
-		if f&FlagLowercaseHost == FlagLowercaseHost {
-			options = append(options, precis.FoldCase())
-		}
-		options = append(options, precis.Norm(norm.NFC))
-		profile := precis.NewFreeform(options...)
-		if parsed.Host, e = idna.ToASCII(profile.NewTransformer().String(parsed.Host)); e != nil {
-			return "", e
-		}
-		return NormalizeURL(parsed, f), nil
-	}
-	panic("Unreachable code.")
-}
-
-// NormalizeURL returns the normalized string.
-// It takes a parsed URL object as input, as well as the normalization flags.
-func NormalizeURL(u *url.URL, f NormalizationFlags) string {
-	for _, k := range flagsOrder {
-		if f&k == k {
-			flags[k](u)
-		}
-	}
-	return urlesc.Escape(u)
-}
-
-func lowercaseScheme(u *url.URL) {
-	if len(u.Scheme) > 0 {
-		u.Scheme = strings.ToLower(u.Scheme)
-	}
-}
-
-func lowercaseHost(u *url.URL) {
-	if len(u.Host) > 0 {
-		u.Host = strings.ToLower(u.Host)
-	}
-}
-
-func removeDefaultPort(u *url.URL) {
-	if len(u.Host) > 0 {
-		scheme := strings.ToLower(u.Scheme)
-		u.Host = rxPort.ReplaceAllStringFunc(u.Host, func(val string) string {
-			if (scheme == "http" && val == defaultHttpPort) || (scheme == "https" && val == defaultHttpsPort) {
-				return ""
-			}
-			return val
-		})
-	}
-}
-
-func removeTrailingSlash(u *url.URL) {
-	if l := len(u.Path); l > 0 {
-		if strings.HasSuffix(u.Path, "/") {
-			u.Path = u.Path[:l-1]
-		}
-	} else if l = len(u.Host); l > 0 {
-		if strings.HasSuffix(u.Host, "/") {
-			u.Host = u.Host[:l-1]
-		}
-	}
-}
-
-func addTrailingSlash(u *url.URL) {
-	if l := len(u.Path); l > 0 {
-		if !strings.HasSuffix(u.Path, "/") {
-			u.Path += "/"
-		}
-	} else if l = len(u.Host); l > 0 {
-		if !strings.HasSuffix(u.Host, "/") {
-			u.Host += "/"
-		}
-	}
-}
-
-func removeDotSegments(u *url.URL) {
-	if len(u.Path) > 0 {
-		var dotFree []string
-		var lastIsDot bool
-
-		sections := strings.Split(u.Path, "/")
-		for _, s := range sections {
-			if s == ".." {
-				if len(dotFree) > 0 {
-					dotFree = dotFree[:len(dotFree)-1]
-				}
-			} else if s != "." {
-				dotFree = append(dotFree, s)
-			}
-			lastIsDot = (s == "." || s == "..")
-		}
-		// Special case if host does not end with / and new path does not begin with /
-		u.Path = strings.Join(dotFree, "/")
-		if u.Host != "" && !strings.HasSuffix(u.Host, "/") && !strings.HasPrefix(u.Path, "/") {
-			u.Path = "/" + u.Path
-		}
-		// Special case if the last segment was a dot, make sure the path ends with a slash
-		if lastIsDot && !strings.HasSuffix(u.Path, "/") {
-			u.Path += "/"
-		}
-	}
-}
-
-func removeDirectoryIndex(u *url.URL) {
-	if len(u.Path) > 0 {
-		u.Path = rxDirIndex.ReplaceAllString(u.Path, "$1")
-	}
-}
-
-func removeFragment(u *url.URL) {
-	u.Fragment = ""
-}
-
-func forceHTTP(u *url.URL) {
-	if strings.ToLower(u.Scheme) == "https" {
-		u.Scheme = "http"
-	}
-}
-
-func removeDuplicateSlashes(u *url.URL) {
-	if len(u.Path) > 0 {
-		u.Path = rxDupSlashes.ReplaceAllString(u.Path, "/")
-	}
-}
-
-func removeWWW(u *url.URL) {
-	if len(u.Host) > 0 && strings.HasPrefix(strings.ToLower(u.Host), "www.") {
-		u.Host = u.Host[4:]
-	}
-}
-
-func addWWW(u *url.URL) {
-	if len(u.Host) > 0 && !strings.HasPrefix(strings.ToLower(u.Host), "www.") {
-		u.Host = "www." + u.Host
-	}
-}
-
-func sortQuery(u *url.URL) {
-	q := u.Query()
-
-	if len(q) > 0 {
-		arKeys := make([]string, len(q))
-		i := 0
-		for k, _ := range q {
-			arKeys[i] = k
-			i++
-		}
-		sort.Strings(arKeys)
-		buf := new(bytes.Buffer)
-		for _, k := range arKeys {
-			sort.Strings(q[k])
-			for _, v := range q[k] {
-				if buf.Len() > 0 {
-					buf.WriteRune('&')
-				}
-				buf.WriteString(fmt.Sprintf("%s=%s", k, urlesc.QueryEscape(v)))
-			}
-		}
-
-		// Rebuild the raw query string
-		u.RawQuery = buf.String()
-	}
-}
-
-func decodeDWORDHost(u *url.URL) {
-	if len(u.Host) > 0 {
-		if matches := rxDWORDHost.FindStringSubmatch(u.Host); len(matches) > 2 {
-			var parts [4]int64
-
-			dword, _ := strconv.ParseInt(matches[1], 10, 0)
-			for i, shift := range []uint{24, 16, 8, 0} {
-				parts[i] = dword >> shift & 0xFF
-			}
-			u.Host = fmt.Sprintf("%d.%d.%d.%d%s", parts[0], parts[1], parts[2], parts[3], matches[2])
-		}
-	}
-}
-
-func decodeOctalHost(u *url.URL) {
-	if len(u.Host) > 0 {
-		if matches := rxOctalHost.FindStringSubmatch(u.Host); len(matches) > 5 {
-			var parts [4]int64
-
-			for i := 1; i <= 4; i++ {
-				parts[i-1], _ = strconv.ParseInt(matches[i], 8, 0)
-			}
-			u.Host = fmt.Sprintf("%d.%d.%d.%d%s", parts[0], parts[1], parts[2], parts[3], matches[5])
-		}
-	}
-}
-
-func decodeHexHost(u *url.URL) {
-	if len(u.Host) > 0 {
-		if matches := rxHexHost.FindStringSubmatch(u.Host); len(matches) > 2 {
-			// Conversion is safe because of regex validation
-			parsed, _ := strconv.ParseInt(matches[1], 16, 0)
-			// Set host as DWORD (base 10) encoded host
-			u.Host = fmt.Sprintf("%d%s", parsed, matches[2])
-			// The rest is the same as decoding a DWORD host
-			decodeDWORDHost(u)
-		}
-	}
-}
-
-func removeUnncessaryHostDots(u *url.URL) {
-	if len(u.Host) > 0 {
-		if matches := rxHostDots.FindStringSubmatch(u.Host); len(matches) > 1 {
-			// Trim the leading and trailing dots
-			u.Host = strings.Trim(matches[1], ".")
-			if len(matches) > 2 {
-				u.Host += matches[2]
-			}
-		}
-	}
-}
-
-func removeEmptyPortSeparator(u *url.URL) {
-	if len(u.Host) > 0 {
-		u.Host = rxEmptyPort.ReplaceAllString(u.Host, "")
-	}
-}

vendor/github.com/PuerkitoBio/urlesc/urlesc.go

-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package urlesc implements query escaping as per RFC 3986.
-// It contains some parts of the net/url package, modified so as to allow
-// some reserved characters incorrectly escaped by net/url.
-// See https://github.com/golang/go/issues/5684
-package urlesc
-
-import (
-	"bytes"
-	"net/url"
-	"strings"
-)
-
-type encoding int
-
-const (
-	encodePath encoding = 1 + iota
-	encodeUserPassword
-	encodeQueryComponent
-	encodeFragment
-)
-
-// Return true if the specified character should be escaped when
-// appearing in a URL string, according to RFC 3986.
-func shouldEscape(c byte, mode encoding) bool {
-	// §2.3 Unreserved characters (alphanum)
-	if 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' {
-		return false
-	}
-
-	switch c {
-	case '-', '.', '_', '~': // §2.3 Unreserved characters (mark)
-		return false
-
-	// §2.2 Reserved characters (reserved)
-	case ':', '/', '?', '#', '[', ']', '@', // gen-delims
-		'!', '$', '&', '\'', '(', ')', '*', '+', ',', ';', '=': // sub-delims
-		// Different sections of the URL allow a few of
-		// the reserved characters to appear unescaped.
-		switch mode {
-		case encodePath: // §3.3
-			// The RFC allows sub-delims and : @.
-			// '/', '[' and ']' can be used to assign meaning to individual path
-			// segments.  This package only manipulates the path as a whole,
-			// so we allow those as well.  That leaves only ? and # to escape.
-			return c == '?' || c == '#'
-
-		case encodeUserPassword: // §3.2.1
-			// The RFC allows : and sub-delims in
-			// userinfo.  The parsing of userinfo treats ':' as special so we must escape
-			// all the gen-delims.
-			return c == ':' || c == '/' || c == '?' || c == '#' || c == '[' || c == ']' || c == '@'
-
-		case encodeQueryComponent: // §3.4
-			// The RFC allows / and ?.
-			return c != '/' && c != '?'
-
-		case encodeFragment: // §4.1
-			// The RFC text is silent but the grammar allows
-			// everything, so escape nothing but #
-			return c == '#'
-		}
-	}
-
-	// Everything else must be escaped.
-	return true
-}
-
-// QueryEscape escapes the string so it can be safely placed
-// inside a URL query.
-func QueryEscape(s string) string {
-	return escape(s, encodeQueryComponent)
-}
-
-func escape(s string, mode encoding) string {
-	spaceCount, hexCount := 0, 0
-	for i := 0; i < len(s); i++ {
-		c := s[i]
-		if shouldEscape(c, mode) {
-			if c == ' ' && mode == encodeQueryComponent {
-				spaceCount++
-			} else {
-				hexCount++
-			}
-		}
-	}
-
-	if spaceCount == 0 && hexCount == 0 {
-		return s
-	}
-
-	t := make([]byte, len(s)+2*hexCount)
-	j := 0
-	for i := 0; i < len(s); i++ {
-		switch c := s[i]; {
-		case c == ' ' && mode == encodeQueryComponent:
-			t[j] = '+'
-			j++
-		case shouldEscape(c, mode):
-			t[j] = '%'
-			t[j+1] = "0123456789ABCDEF"[c>>4]
-			t[j+2] = "0123456789ABCDEF"[c&15]
-			j += 3
-		default:
-			t[j] = s[i]
-			j++
-		}
-	}
-	return string(t)
-}
-
-var uiReplacer = strings.NewReplacer(
-	"%21", "!",
-	"%27", "'",
-	"%28", "(",
-	"%29", ")",
-	"%2A", "*",
-)
-
-// unescapeUserinfo unescapes some characters that need not to be escaped as per RFC3986.
-func unescapeUserinfo(s string) string {
-	return uiReplacer.Replace(s)
-}
-
-// Escape reassembles the URL into a valid URL string.
-// The general form of the result is one of:
-//
-//	scheme:opaque
-//	scheme://userinfo@host/path?query#fragment
-//
-// If u.Opaque is non-empty, String uses the first form;
-// otherwise it uses the second form.
-//
-// In the second form, the following rules apply:
-//	- if u.Scheme is empty, scheme: is omitted.
-//	- if u.User is nil, userinfo@ is omitted.
-//	- if u.Host is empty, host/ is omitted.
-//	- if u.Scheme and u.Host are empty and u.User is nil,
-//	   the entire scheme://userinfo@host/ is omitted.
-//	- if u.Host is non-empty and u.Path begins with a /,
-//	   the form host/path does not add its own /.
-//	- if u.RawQuery is empty, ?query is omitted.
-//	- if u.Fragment is empty, #fragment is omitted.
-func Escape(u *url.URL) string {
-	var buf bytes.Buffer
-	if u.Scheme != "" {
-		buf.WriteString(u.Scheme)
-		buf.WriteByte(':')
-	}
-	if u.Opaque != "" {
-		buf.WriteString(u.Opaque)
-	} else {
-		if u.Scheme != "" || u.Host != "" || u.User != nil {
-			buf.WriteString("//")
-			if ui := u.User; ui != nil {
-				buf.WriteString(unescapeUserinfo(ui.String()))
-				buf.WriteByte('@')
-			}
-			if h := u.Host; h != "" {
-				buf.WriteString(h)
-			}
-		}
-		if u.Path != "" && u.Path[0] != '/' && u.Host != "" {
-			buf.WriteByte('/')
-		}
-		buf.WriteString(escape(u.Path, encodePath))
-	}
-	if u.RawQuery != "" {
-		buf.WriteByte('?')
-		buf.WriteString(u.RawQuery)
-	}
-	if u.Fragment != "" {
-		buf.WriteByte('#')
-		buf.WriteString(escape(u.Fragment, encodeFragment))
-	}
-	return buf.String()
-}

vendor/github.com/davecgh/go-spew/LICENSE

-Copyright (c) 2012-2013 Dave Collins <dave@davec.name>
-
-Permission to use, copy, modify, and distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

vendor/github.com/davecgh/go-spew/spew/bypass.go

-// Copyright (c) 2015 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when the code is not running on Google App Engine and "-tags disableunsafe"
-// is not added to the go build command line.
-// +build !appengine,!disableunsafe
-
-package spew
-
-import (
-	"reflect"
-	"unsafe"
-)
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = false
-
-	// ptrSize is the size of a pointer on the current arch.
-	ptrSize = unsafe.Sizeof((*byte)(nil))
-)
-
-var (
-	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
-	// internal reflect.Value fields.  These values are valid before golang
-	// commit ecccf07e7f9d which changed the format.  The are also valid
-	// after commit 82f48826c6c7 which changed the format again to mirror
-	// the original format.  Code in the init function updates these offsets
-	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
-	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
-
-	// flagKindWidth and flagKindShift indicate various bits that the
-	// reflect package uses internally to track kind information.
-	//
-	// flagRO indicates whether or not the value field of a reflect.Value is
-	// read-only.
-	//
-	// flagIndir indicates whether the value field of a reflect.Value is
-	// the actual data or a pointer to the data.
-	//
-	// These values are valid before golang commit 90a7c3c86944 which
-	// changed their positions.  Code in the init function updates these
-	// flags as necessary.
-	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
-	flagRO        = uintptr(1 << 0)
-	flagIndir     = uintptr(1 << 1)
-)
-
-func init() {
-	// Older versions of reflect.Value stored small integers directly in the
-	// ptr field (which is named val in the older versions).  Versions
-	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
-	// scalar for this purpose which unfortunately came before the flag
-	// field, so the offset of the flag field is different for those
-	// versions.
-	//
-	// This code constructs a new reflect.Value from a known small integer
-	// and checks if the size of the reflect.Value struct indicates it has
-	// the scalar field. When it does, the offsets are updated accordingly.
-	vv := reflect.ValueOf(0xf00)
-	if unsafe.Sizeof(vv) == (ptrSize * 4) {
-		offsetScalar = ptrSize * 2
-		offsetFlag = ptrSize * 3
-	}
-
-	// Commit 90a7c3c86944 changed the flag positions such that the low
-	// order bits are the kind.  This code extracts the kind from the flags
-	// field and ensures it's the correct type.  When it's not, the flag
-	// order has been changed to the newer format, so the flags are updated
-	// accordingly.
-	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
-	upfv := *(*uintptr)(upf)
-	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
-	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
-		flagKindShift = 0
-		flagRO = 1 << 5
-		flagIndir = 1 << 6
-
-		// Commit adf9b30e5594 modified the flags to separate the
-		// flagRO flag into two bits which specifies whether or not the
-		// field is embedded.  This causes flagIndir to move over a bit
-		// and means that flagRO is the combination of either of the
-		// original flagRO bit and the new bit.
-		//
-		// This code detects the change by extracting what used to be
-		// the indirect bit to ensure it's set.  When it's not, the flag
-		// order has been changed to the newer format, so the flags are
-		// updated accordingly.
-		if upfv&flagIndir == 0 {
-			flagRO = 3 << 5
-			flagIndir = 1 << 7
-		}
-	}
-}
-
-// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
-// the typical safety restrictions preventing access to unaddressable and
-// unexported data.  It works by digging the raw pointer to the underlying
-// value out of the protected value and generating a new unprotected (unsafe)
-// reflect.Value to it.
-//
-// This allows us to check for implementations of the Stringer and error
-// interfaces to be used for pretty printing ordinarily unaddressable and
-// inaccessible values such as unexported struct fields.
-func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
-	indirects := 1
-	vt := v.Type()
-	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
-	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
-	if rvf&flagIndir != 0 {
-		vt = reflect.PtrTo(v.Type())
-		indirects++
-	} else if offsetScalar != 0 {
-		// The value is in the scalar field when it's not one of the
-		// reference types.
-		switch vt.Kind() {
-		case reflect.Uintptr:
-		case reflect.Chan:
-		case reflect.Func:
-		case reflect.Map:
-		case reflect.Ptr:
-		case reflect.UnsafePointer:
-		default:
-			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
-				offsetScalar)
-		}
-	}
-
-	pv := reflect.NewAt(vt, upv)
-	rv = pv
-	for i := 0; i < indirects; i++ {
-		rv = rv.Elem()
-	}
-	return rv
-}

vendor/github.com/davecgh/go-spew/spew/bypasssafe.go

-// Copyright (c) 2015 Dave Collins <dave@davec.name>
-//
-// Permission to use, copy, modify, and distribute this software for any
-// purpose with or without fee is hereby granted, provided that the above
-// copyright notice and this permission notice appear in all copies.
-//
-// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-// NOTE: Due to the following build constraints, this file will only be compiled
-// when either the code is running on Google App Engine or "-tags disableunsafe"
-// is added to the go build command line.
-// +build appengine disableunsafe
-
-package spew
-
-import "reflect"
-
-const (
-	// UnsafeDisabled is a build-time constant which specifies whether or
-	// not access to the unsafe package is available.
-	UnsafeDisabled = true
-)
-
-// unsafeReflectValue typically converts the passed reflect.Value into a one
-// that bypasses the typical safety restrictions preventing access to
-// unaddressable and unexported data.  However, doing this relies on access to
-// the unsafe package.  This is a stub version which simply returns the passed
-// reflect.Value when the unsafe package is not available.
-func unsafeReflectValue(v reflect.Value) reflect.Value {
-	return v
-}

vendor/github.com/davecgh/go-spew/spew/common.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"reflect"
-	"sort"
-	"strconv"
-)
-
-// Some constants in the form of bytes to avoid string overhead.  This mirrors
-// the technique used in the fmt package.
-var (
-	panicBytes            = []byte("(PANIC=")
-	plusBytes             = []byte("+")
-	iBytes                = []byte("i")
-	trueBytes             = []byte("true")
-	falseBytes            = []byte("false")
-	interfaceBytes        = []byte("(interface {})")
-	commaNewlineBytes     = []byte(",\n")
-	newlineBytes          = []byte("\n")
-	openBraceBytes        = []byte("{")
-	openBraceNewlineBytes = []byte("{\n")
-	closeBraceBytes       = []byte("}")
-	asteriskBytes         = []byte("*")
-	colonBytes            = []byte(":")
-	colonSpaceBytes       = []byte(": ")
-	openParenBytes        = []byte("(")
-	closeParenBytes       = []byte(")")
-	spaceBytes            = []byte(" ")
-	pointerChainBytes     = []byte("->")
-	nilAngleBytes         = []byte("<nil>")
-	maxNewlineBytes       = []byte("<max depth reached>\n")
-	maxShortBytes         = []byte("<max>")
-	circularBytes         = []byte("<already shown>")
-	circularShortBytes    = []byte("<shown>")
-	invalidAngleBytes     = []byte("<invalid>")
-	openBracketBytes      = []byte("[")
-	closeBracketBytes     = []byte("]")
-	percentBytes          = []byte("%")
-	precisionBytes        = []byte(".")
-	openAngleBytes        = []byte("<")
-	closeAngleBytes       = []byte(">")
-	openMapBytes          = []byte("map[")
-	closeMapBytes         = []byte("]")
-	lenEqualsBytes        = []byte("len=")
-	capEqualsBytes        = []byte("cap=")
-)
-
-// hexDigits is used to map a decimal value to a hex digit.
-var hexDigits = "0123456789abcdef"
-
-// catchPanic handles any panics that might occur during the handleMethods
-// calls.
-func catchPanic(w io.Writer, v reflect.Value) {
-	if err := recover(); err != nil {
-		w.Write(panicBytes)
-		fmt.Fprintf(w, "%v", err)
-		w.Write(closeParenBytes)
-	}
-}
-
-// handleMethods attempts to call the Error and String methods on the underlying
-// type the passed reflect.Value represents and outputes the result to Writer w.
-//
-// It handles panics in any called methods by catching and displaying the error
-// as the formatted value.
-func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
-	// We need an interface to check if the type implements the error or
-	// Stringer interface.  However, the reflect package won't give us an
-	// interface on certain things like unexported struct fields in order
-	// to enforce visibility rules.  We use unsafe, when it's available,
-	// to bypass these restrictions since this package does not mutate the
-	// values.
-	if !v.CanInterface() {
-		if UnsafeDisabled {
-			return false
-		}
-
-		v = unsafeReflectValue(v)
-	}
-
-	// Choose whether or not to do error and Stringer interface lookups against
-	// the base type or a pointer to the base type depending on settings.
-	// Technically calling one of these methods with a pointer receiver can
-	// mutate the value, however, types which choose to satisify an error or
-	// Stringer interface with a pointer receiver should not be mutating their
-	// state inside these interface methods.
-	if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
-		v = unsafeReflectValue(v)
-	}
-	if v.CanAddr() {
-		v = v.Addr()
-	}
-
-	// Is it an error or Stringer?
-	switch iface := v.Interface().(type) {
-	case error:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.Error()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-
-		w.Write([]byte(iface.Error()))
-		return true
-
-	case fmt.Stringer:
-		defer catchPanic(w, v)
-		if cs.ContinueOnMethod {
-			w.Write(openParenBytes)
-			w.Write([]byte(iface.String()))
-			w.Write(closeParenBytes)
-			w.Write(spaceBytes)
-			return false
-		}
-		w.Write([]byte(iface.String()))
-		return true
-	}
-	return false
-}
-
-// printBool outputs a boolean value as true or false to Writer w.
-func printBool(w io.Writer, val bool) {
-	if val {
-		w.Write(trueBytes)
-	} else {
-		w.Write(falseBytes)
-	}
-}
-
-// printInt outputs a signed integer value to Writer w.
-func printInt(w io.Writer, val int64, base int) {
-	w.Write([]byte(strconv.FormatInt(val, base)))
-}
-
-// printUint outputs an unsigned integer value to Writer w.
-func printUint(w io.Writer, val uint64, base int) {
-	w.Write([]byte(strconv.FormatUint(val, base)))
-}
-
-// printFloat outputs a floating point value using the specified precision,
-// which is expected to be 32 or 64bit, to Writer w.
-func printFloat(w io.Writer, val float64, precision int) {
-	w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
-}
-
-// printComplex outputs a complex value using the specified float precision
-// for the real and imaginary parts to Writer w.
-func printComplex(w io.Writer, c complex128, floatPrecision int) {
-	r := real(c)
-	w.Write(openParenBytes)
-	w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
-	i := imag(c)
-	if i >= 0 {
-		w.Write(plusBytes)
-	}
-	w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
-	w.Write(iBytes)
-	w.Write(closeParenBytes)
-}
-
-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
-// prefix to Writer w.
-func printHexPtr(w io.Writer, p uintptr) {
-	// Null pointer.
-	num := uint64(p)
-	if num == 0 {
-		w.Write(nilAngleBytes)
-		return
-	}
-
-	// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
-	buf := make([]byte, 18)
-
-	// It's simpler to construct the hex string right to left.
-	base := uint64(16)
-	i := len(buf) - 1
-	for num >= base {
-		buf[i] = hexDigits[num%base]
-		num /= base
-		i--
-	}
-	buf[i] = hexDigits[num]
-
-	// Add '0x' prefix.
-	i--
-	buf[i] = 'x'
-	i--
-	buf[i] = '0'
-
-	// Strip unused leading bytes.
-	buf = buf[i:]
-	w.Write(buf)
-}
-
-// valuesSorter implements sort.Interface to allow a slice of reflect.Value
-// elements to be sorted.
-type valuesSorter struct {
-	values  []reflect.Value
-	strings []string // either nil or same len and values
-	cs      *ConfigState
-}
-
-// newValuesSorter initializes a valuesSorter instance, which holds a set of
-// surrogate keys on which the data should be sorted.  It uses flags in
-// ConfigState to decide if and how to populate those surrogate keys.
-func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
-	vs := &valuesSorter{values: values, cs: cs}
-	if canSortSimply(vs.values[0].Kind()) {
-		return vs
-	}
-	if !cs.DisableMethods {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			b := bytes.Buffer{}
-			if !handleMethods(cs, &b, vs.values[i]) {
-				vs.strings = nil
-				break
-			}
-			vs.strings[i] = b.String()
-		}
-	}
-	if vs.strings == nil && cs.SpewKeys {
-		vs.strings = make([]string, len(values))
-		for i := range vs.values {
-			vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
-		}
-	}
-	return vs
-}
-
-// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
-// directly, or whether it should be considered for sorting by surrogate keys
-// (if the ConfigState allows it).
-func canSortSimply(kind reflect.Kind) bool {
-	// This switch parallels valueSortLess, except for the default case.
-	switch kind {
-	case reflect.Bool:
-		return true
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return true
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return true
-	case reflect.Float32, reflect.Float64:
-		return true
-	case reflect.String:
-		return true
-	case reflect.Uintptr:
-		return true
-	case reflect.Array:
-		return true
-	}
-	return false
-}
-
-// Len returns the number of values in the slice.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Len() int {
-	return len(s.values)
-}
-
-// Swap swaps the values at the passed indices.  It is part of the
-// sort.Interface implementation.
-func (s *valuesSorter) Swap(i, j int) {
-	s.values[i], s.values[j] = s.values[j], s.values[i]
-	if s.strings != nil {
-		s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
-	}
-}
-
-// valueSortLess returns whether the first value should sort before the second
-// value.  It is used by valueSorter.Less as part of the sort.Interface
-// implementation.
-func valueSortLess(a, b reflect.Value) bool {
-	switch a.Kind() {
-	case reflect.Bool:
-		return !a.Bool() && b.Bool()
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		return a.Int() < b.Int()
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		return a.Uint() < b.Uint()
-	case reflect.Float32, reflect.Float64:
-		return a.Float() < b.Float()
-	case reflect.String:
-		return a.String() < b.String()
-	case reflect.Uintptr:
-		return a.Uint() < b.Uint()
-	case reflect.Array:
-		// Compare the contents of both arrays.
-		l := a.Len()
-		for i := 0; i < l; i++ {
-			av := a.Index(i)
-			bv := b.Index(i)
-			if av.Interface() == bv.Interface() {
-				continue
-			}
-			return valueSortLess(av, bv)
-		}
-	}
-	return a.String() < b.String()
-}
-
-// Less returns whether the value at index i should sort before the
-// value at index j.  It is part of the sort.Interface implementation.
-func (s *valuesSorter) Less(i, j int) bool {
-	if s.strings == nil {
-		return valueSortLess(s.values[i], s.values[j])
-	}
-	return s.strings[i] < s.strings[j]
-}
-
-// sortValues is a sort function that handles both native types and any type that
-// can be converted to error or Stringer.  Other inputs are sorted according to
-// their Value.String() value to ensure display stability.
-func sortValues(values []reflect.Value, cs *ConfigState) {
-	if len(values) == 0 {
-		return
-	}
-	sort.Sort(newValuesSorter(values, cs))
-}

vendor/github.com/davecgh/go-spew/spew/config.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-)
-
-// ConfigState houses the configuration options used by spew to format and
-// display values.  There is a global instance, Config, that is used to control
-// all top-level Formatter and Dump functionality.  Each ConfigState instance
-// provides methods equivalent to the top-level functions.
-//
-// The zero value for ConfigState provides no indentation.  You would typically
-// want to set it to a space or a tab.
-//
-// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
-// with default settings.  See the documentation of NewDefaultConfig for default
-// values.
-type ConfigState struct {
-	// Indent specifies the string to use for each indentation level.  The
-	// global config instance that all top-level functions use set this to a
-	// single space by default.  If you would like more indentation, you might
-	// set this to a tab with "\t" or perhaps two spaces with "  ".
-	Indent string
-
-	// MaxDepth controls the maximum number of levels to descend into nested
-	// data structures.  The default, 0, means there is no limit.
-	//
-	// NOTE: Circular data structures are properly detected, so it is not
-	// necessary to set this value unless you specifically want to limit deeply
-	// nested data structures.
-	MaxDepth int
-
-	// DisableMethods specifies whether or not error and Stringer interfaces are
-	// invoked for types that implement them.
-	DisableMethods bool
-
-	// DisablePointerMethods specifies whether or not to check for and invoke
-	// error and Stringer interfaces on types which only accept a pointer
-	// receiver when the current type is not a pointer.
-	//
-	// NOTE: This might be an unsafe action since calling one of these methods
-	// with a pointer receiver could technically mutate the value, however,
-	// in practice, types which choose to satisify an error or Stringer
-	// interface with a pointer receiver should not be mutating their state
-	// inside these interface methods.  As a result, this option relies on
-	// access to the unsafe package, so it will not have any effect when
-	// running in environments without access to the unsafe package such as
-	// Google App Engine or with the "disableunsafe" build tag specified.
-	DisablePointerMethods bool
-
-	// ContinueOnMethod specifies whether or not recursion should continue once
-	// a custom error or Stringer interface is invoked.  The default, false,
-	// means it will print the results of invoking the custom error or Stringer
-	// interface and return immediately instead of continuing to recurse into
-	// the internals of the data type.
-	//
-	// NOTE: This flag does not have any effect if method invocation is disabled
-	// via the DisableMethods or DisablePointerMethods options.
-	ContinueOnMethod bool
-
-	// SortKeys specifies map keys should be sorted before being printed. Use
-	// this to have a more deterministic, diffable output.  Note that only
-	// native types (bool, int, uint, floats, uintptr and string) and types
-	// that support the error or Stringer interfaces (if methods are
-	// enabled) are supported, with other types sorted according to the
-	// reflect.Value.String() output which guarantees display stability.
-	SortKeys bool
-
-	// SpewKeys specifies that, as a last resort attempt, map keys should
-	// be spewed to strings and sorted by those strings.  This is only
-	// considered if SortKeys is true.
-	SpewKeys bool
-}
-
-// Config is the active configuration of the top-level functions.
-// The configuration can be changed by modifying the contents of spew.Config.
-var Config = ConfigState{Indent: " "}
-
-// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the formatted string as a value that satisfies error.  See NewFormatter
-// for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
-	return fmt.Errorf(format, c.convertArgs(a)...)
-}
-
-// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprint(w, c.convertArgs(a)...)
-}
-
-// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
-	return fmt.Fprintf(w, format, c.convertArgs(a)...)
-}
-
-// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
-// passed with a Formatter interface returned by c.NewFormatter.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprintln(w, c.convertArgs(a)...)
-}
-
-// Print is a wrapper for fmt.Print that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
-	return fmt.Print(c.convertArgs(a)...)
-}
-
-// Printf is a wrapper for fmt.Printf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
-	return fmt.Printf(format, c.convertArgs(a)...)
-}
-
-// Println is a wrapper for fmt.Println that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
-	return fmt.Println(c.convertArgs(a)...)
-}
-
-// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprint(a ...interface{}) string {
-	return fmt.Sprint(c.convertArgs(a)...)
-}
-
-// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
-// passed with a Formatter interface returned by c.NewFormatter.  It returns
-// the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
-	return fmt.Sprintf(format, c.convertArgs(a)...)
-}
-
-// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
-// were passed with a Formatter interface returned by c.NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
-func (c *ConfigState) Sprintln(a ...interface{}) string {
-	return fmt.Sprintln(c.convertArgs(a)...)
-}
-
-/*
-NewFormatter returns a custom formatter that satisfies the fmt.Formatter
-interface.  As a result, it integrates cleanly with standard fmt package
-printing functions.  The formatter is useful for inline printing of smaller data
-types similar to the standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Typically this function shouldn't be called directly.  It is much easier to make
-use of the custom formatter by calling one of the convenience functions such as
-c.Printf, c.Println, or c.Printf.
-*/
-func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
-	return newFormatter(c, v)
-}
-
-// Fdump formats and displays the passed arguments to io.Writer w.  It formats
-// exactly the same as Dump.
-func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
-	fdump(c, w, a...)
-}
-
-/*
-Dump displays the passed parameters to standard out with newlines, customizable
-indentation, and additional debug information such as complete types and all
-pointer addresses used to indirect to the final value.  It provides the
-following features over the built-in printing facilities provided by the fmt
-package:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output
-
-The configuration options are controlled by modifying the public members
-of c.  See ConfigState for options documentation.
-
-See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
-get the formatted result as a string.
-*/
-func (c *ConfigState) Dump(a ...interface{}) {
-	fdump(c, os.Stdout, a...)
-}
-
-// Sdump returns a string with the passed arguments formatted exactly the same
-// as Dump.
-func (c *ConfigState) Sdump(a ...interface{}) string {
-	var buf bytes.Buffer
-	fdump(c, &buf, a...)
-	return buf.String()
-}
-
-// convertArgs accepts a slice of arguments and returns a slice of the same
-// length with each argument converted to a spew Formatter interface using
-// the ConfigState associated with s.
-func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
-	formatters = make([]interface{}, len(args))
-	for index, arg := range args {
-		formatters[index] = newFormatter(c, arg)
-	}
-	return formatters
-}
-
-// NewDefaultConfig returns a ConfigState with the following default settings.
-//
-// 	Indent: " "
-// 	MaxDepth: 0
-// 	DisableMethods: false
-// 	DisablePointerMethods: false
-// 	ContinueOnMethod: false
-// 	SortKeys: false
-func NewDefaultConfig() *ConfigState {
-	return &ConfigState{Indent: " "}
-}

vendor/github.com/davecgh/go-spew/spew/doc.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
-Package spew implements a deep pretty printer for Go data structures to aid in
-debugging.
-
-A quick overview of the additional features spew provides over the built-in
-printing facilities for Go data types are as follows:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output (only when using
-	  Dump style)
-
-There are two different approaches spew allows for dumping Go data structures:
-
-	* Dump style which prints with newlines, customizable indentation,
-	  and additional debug information such as types and all pointer addresses
-	  used to indirect to the final value
-	* A custom Formatter interface that integrates cleanly with the standard fmt
-	  package and replaces %v, %+v, %#v, and %#+v to provide inline printing
-	  similar to the default %v while providing the additional functionality
-	  outlined above and passing unsupported format verbs such as %x and %q
-	  along to fmt
-
-Quick Start
-
-This section demonstrates how to quickly get started with spew.  See the
-sections below for further details on formatting and configuration options.
-
-To dump a variable with full newlines, indentation, type, and pointer
-information use Dump, Fdump, or Sdump:
-	spew.Dump(myVar1, myVar2, ...)
-	spew.Fdump(someWriter, myVar1, myVar2, ...)
-	str := spew.Sdump(myVar1, myVar2, ...)
-
-Alternatively, if you would prefer to use format strings with a compacted inline
-printing style, use the convenience wrappers Printf, Fprintf, etc with
-%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
-%#+v (adds types and pointer addresses):
-	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-	spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-
-Configuration Options
-
-Configuration of spew is handled by fields in the ConfigState type.  For
-convenience, all of the top-level functions use a global state available
-via the spew.Config global.
-
-It is also possible to create a ConfigState instance that provides methods
-equivalent to the top-level functions.  This allows concurrent configuration
-options.  See the ConfigState documentation for more details.
-
-The following configuration options are available:
-	* Indent
-		String to use for each indentation level for Dump functions.
-		It is a single space by default.  A popular alternative is "\t".
-
-	* MaxDepth
-		Maximum number of levels to descend into nested data structures.
-		There is no limit by default.
-
-	* DisableMethods
-		Disables invocation of error and Stringer interface methods.
-		Method invocation is enabled by default.
-
-	* DisablePointerMethods
-		Disables invocation of error and Stringer interface methods on types
-		which only accept pointer receivers from non-pointer variables.
-		Pointer method invocation is enabled by default.
-
-	* ContinueOnMethod
-		Enables recursion into types after invoking error and Stringer interface
-		methods. Recursion after method invocation is disabled by default.
-
-	* SortKeys
-		Specifies map keys should be sorted before being printed. Use
-		this to have a more deterministic, diffable output.  Note that
-		only native types (bool, int, uint, floats, uintptr and string)
-		and types which implement error or Stringer interfaces are
-		supported with other types sorted according to the
-		reflect.Value.String() output which guarantees display
-		stability.  Natural map order is used by default.
-
-	* SpewKeys
-		Specifies that, as a last resort attempt, map keys should be
-		spewed to strings and sorted by those strings.  This is only
-		considered if SortKeys is true.
-
-Dump Usage
-
-Simply call spew.Dump with a list of variables you want to dump:
-
-	spew.Dump(myVar1, myVar2, ...)
-
-You may also call spew.Fdump if you would prefer to output to an arbitrary
-io.Writer.  For example, to dump to standard error:
-
-	spew.Fdump(os.Stderr, myVar1, myVar2, ...)
-
-A third option is to call spew.Sdump to get the formatted output as a string:
-
-	str := spew.Sdump(myVar1, myVar2, ...)
-
-Sample Dump Output
-
-See the Dump example for details on the setup of the types and variables being
-shown here.
-
-	(main.Foo) {
-	 unexportedField: (*main.Bar)(0xf84002e210)({
-	  flag: (main.Flag) flagTwo,
-	  data: (uintptr) <nil>
-	 }),
-	 ExportedField: (map[interface {}]interface {}) (len=1) {
-	  (string) (len=3) "one": (bool) true
-	 }
-	}
-
-Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
-command as shown.
-	([]uint8) (len=32 cap=32) {
-	 00000000  11 12 13 14 15 16 17 18  19 1a 1b 1c 1d 1e 1f 20  |............... |
-	 00000010  21 22 23 24 25 26 27 28  29 2a 2b 2c 2d 2e 2f 30  |!"#$%&'()*+,-./0|
-	 00000020  31 32                                             |12|
-	}
-
-Custom Formatter
-
-Spew provides a custom formatter that implements the fmt.Formatter interface
-so that it integrates cleanly with standard fmt package printing functions. The
-formatter is useful for inline printing of smaller data types similar to the
-standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Custom Formatter Usage
-
-The simplest way to make use of the spew custom formatter is to call one of the
-convenience functions such as spew.Printf, spew.Println, or spew.Printf.  The
-functions have syntax you are most likely already familiar with:
-
-	spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-	spew.Println(myVar, myVar2)
-	spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
-	spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
-
-See the Index for the full list convenience functions.
-
-Sample Formatter Output
-
-Double pointer to a uint8:
-	  %v: <**>5
-	 %+v: <**>(0xf8400420d0->0xf8400420c8)5
-	 %#v: (**uint8)5
-	%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
-
-Pointer to circular struct with a uint8 field and a pointer to itself:
-	  %v: <*>{1 <*><shown>}
-	 %+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
-	 %#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
-	%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
-
-See the Printf example for details on the setup of variables being shown
-here.
-
-Errors
-
-Since it is possible for custom Stringer/error interfaces to panic, spew
-detects them and handles them internally by printing the panic information
-inline with the output.  Since spew is intended to provide deep pretty printing
-capabilities on structures, it intentionally does not return any errors.
-*/
-package spew

vendor/github.com/davecgh/go-spew/spew/dump.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"encoding/hex"
-	"fmt"
-	"io"
-	"os"
-	"reflect"
-	"regexp"
-	"strconv"
-	"strings"
-)
-
-var (
-	// uint8Type is a reflect.Type representing a uint8.  It is used to
-	// convert cgo types to uint8 slices for hexdumping.
-	uint8Type = reflect.TypeOf(uint8(0))
-
-	// cCharRE is a regular expression that matches a cgo char.
-	// It is used to detect character arrays to hexdump them.
-	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
-
-	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
-	// char.  It is used to detect unsigned character arrays to hexdump
-	// them.
-	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
-
-	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
-	// It is used to detect uint8_t arrays to hexdump them.
-	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
-)
-
-// dumpState contains information about the state of a dump operation.
-type dumpState struct {
-	w                io.Writer
-	depth            int
-	pointers         map[uintptr]int
-	ignoreNextType   bool
-	ignoreNextIndent bool
-	cs               *ConfigState
-}
-
-// indent performs indentation according to the depth level and cs.Indent
-// option.
-func (d *dumpState) indent() {
-	if d.ignoreNextIndent {
-		d.ignoreNextIndent = false
-		return
-	}
-	d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
-}
-
-// unpackValue returns values inside of non-nil interfaces when possible.
-// This is useful for data types like structs, arrays, slices, and maps which
-// can contain varying types packed inside an interface.
-func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
-	if v.Kind() == reflect.Interface && !v.IsNil() {
-		v = v.Elem()
-	}
-	return v
-}
-
-// dumpPtr handles formatting of pointers by indirecting them as necessary.
-func (d *dumpState) dumpPtr(v reflect.Value) {
-	// Remove pointers at or below the current depth from map used to detect
-	// circular refs.
-	for k, depth := range d.pointers {
-		if depth >= d.depth {
-			delete(d.pointers, k)
-		}
-	}
-
-	// Keep list of all dereferenced pointers to show later.
-	pointerChain := make([]uintptr, 0)
-
-	// Figure out how many levels of indirection there are by dereferencing
-	// pointers and unpacking interfaces down the chain while detecting circular
-	// references.
-	nilFound := false
-	cycleFound := false
-	indirects := 0
-	ve := v
-	for ve.Kind() == reflect.Ptr {
-		if ve.IsNil() {
-			nilFound = true
-			break
-		}
-		indirects++
-		addr := ve.Pointer()
-		pointerChain = append(pointerChain, addr)
-		if pd, ok := d.pointers[addr]; ok && pd < d.depth {
-			cycleFound = true
-			indirects--
-			break
-		}
-		d.pointers[addr] = d.depth
-
-		ve = ve.Elem()
-		if ve.Kind() == reflect.Interface {
-			if ve.IsNil() {
-				nilFound = true
-				break
-			}
-			ve = ve.Elem()
-		}
-	}
-
-	// Display type information.
-	d.w.Write(openParenBytes)
-	d.w.Write(bytes.Repeat(asteriskBytes, indirects))
-	d.w.Write([]byte(ve.Type().String()))
-	d.w.Write(closeParenBytes)
-
-	// Display pointer information.
-	if len(pointerChain) > 0 {
-		d.w.Write(openParenBytes)
-		for i, addr := range pointerChain {
-			if i > 0 {
-				d.w.Write(pointerChainBytes)
-			}
-			printHexPtr(d.w, addr)
-		}
-		d.w.Write(closeParenBytes)
-	}
-
-	// Display dereferenced value.
-	d.w.Write(openParenBytes)
-	switch {
-	case nilFound == true:
-		d.w.Write(nilAngleBytes)
-
-	case cycleFound == true:
-		d.w.Write(circularBytes)
-
-	default:
-		d.ignoreNextType = true
-		d.dump(ve)
-	}
-	d.w.Write(closeParenBytes)
-}
-
-// dumpSlice handles formatting of arrays and slices.  Byte (uint8 under
-// reflection) arrays and slices are dumped in hexdump -C fashion.
-func (d *dumpState) dumpSlice(v reflect.Value) {
-	// Determine whether this type should be hex dumped or not.  Also,
-	// for types which should be hexdumped, try to use the underlying data
-	// first, then fall back to trying to convert them to a uint8 slice.
-	var buf []uint8
-	doConvert := false
-	doHexDump := false
-	numEntries := v.Len()
-	if numEntries > 0 {
-		vt := v.Index(0).Type()
-		vts := vt.String()
-		switch {
-		// C types that need to be converted.
-		case cCharRE.MatchString(vts):
-			fallthrough
-		case cUnsignedCharRE.MatchString(vts):
-			fallthrough
-		case cUint8tCharRE.MatchString(vts):
-			doConvert = true
-
-		// Try to use existing uint8 slices and fall back to converting
-		// and copying if that fails.
-		case vt.Kind() == reflect.Uint8:
-			// We need an addressable interface to convert the type
-			// to a byte slice.  However, the reflect package won't
-			// give us an interface on certain things like
-			// unexported struct fields in order to enforce
-			// visibility rules.  We use unsafe, when available, to
-			// bypass these restrictions since this package does not
-			// mutate the values.
-			vs := v
-			if !vs.CanInterface() || !vs.CanAddr() {
-				vs = unsafeReflectValue(vs)
-			}
-			if !UnsafeDisabled {
-				vs = vs.Slice(0, numEntries)
-
-				// Use the existing uint8 slice if it can be
-				// type asserted.
-				iface := vs.Interface()
-				if slice, ok := iface.([]uint8); ok {
-					buf = slice
-					doHexDump = true
-					break
-				}
-			}
-
-			// The underlying data needs to be converted if it can't
-			// be type asserted to a uint8 slice.
-			doConvert = true
-		}
-
-		// Copy and convert the underlying type if needed.
-		if doConvert && vt.ConvertibleTo(uint8Type) {
-			// Convert and copy each element into a uint8 byte
-			// slice.
-			buf = make([]uint8, numEntries)
-			for i := 0; i < numEntries; i++ {
-				vv := v.Index(i)
-				buf[i] = uint8(vv.Convert(uint8Type).Uint())
-			}
-			doHexDump = true
-		}
-	}
-
-	// Hexdump the entire slice as needed.
-	if doHexDump {
-		indent := strings.Repeat(d.cs.Indent, d.depth)
-		str := indent + hex.Dump(buf)
-		str = strings.Replace(str, "\n", "\n"+indent, -1)
-		str = strings.TrimRight(str, d.cs.Indent)
-		d.w.Write([]byte(str))
-		return
-	}
-
-	// Recursively call dump for each item.
-	for i := 0; i < numEntries; i++ {
-		d.dump(d.unpackValue(v.Index(i)))
-		if i < (numEntries - 1) {
-			d.w.Write(commaNewlineBytes)
-		} else {
-			d.w.Write(newlineBytes)
-		}
-	}
-}
-
-// dump is the main workhorse for dumping a value.  It uses the passed reflect
-// value to figure out what kind of object we are dealing with and formats it
-// appropriately.  It is a recursive function, however circular data structures
-// are detected and handled properly.
-func (d *dumpState) dump(v reflect.Value) {
-	// Handle invalid reflect values immediately.
-	kind := v.Kind()
-	if kind == reflect.Invalid {
-		d.w.Write(invalidAngleBytes)
-		return
-	}
-
-	// Handle pointers specially.
-	if kind == reflect.Ptr {
-		d.indent()
-		d.dumpPtr(v)
-		return
-	}
-
-	// Print type information unless already handled elsewhere.
-	if !d.ignoreNextType {
-		d.indent()
-		d.w.Write(openParenBytes)
-		d.w.Write([]byte(v.Type().String()))
-		d.w.Write(closeParenBytes)
-		d.w.Write(spaceBytes)
-	}
-	d.ignoreNextType = false
-
-	// Display length and capacity if the built-in len and cap functions
-	// work with the value's kind and the len/cap itself is non-zero.
-	valueLen, valueCap := 0, 0
-	switch v.Kind() {
-	case reflect.Array, reflect.Slice, reflect.Chan:
-		valueLen, valueCap = v.Len(), v.Cap()
-	case reflect.Map, reflect.String:
-		valueLen = v.Len()
-	}
-	if valueLen != 0 || valueCap != 0 {
-		d.w.Write(openParenBytes)
-		if valueLen != 0 {
-			d.w.Write(lenEqualsBytes)
-			printInt(d.w, int64(valueLen), 10)
-		}
-		if valueCap != 0 {
-			if valueLen != 0 {
-				d.w.Write(spaceBytes)
-			}
-			d.w.Write(capEqualsBytes)
-			printInt(d.w, int64(valueCap), 10)
-		}
-		d.w.Write(closeParenBytes)
-		d.w.Write(spaceBytes)
-	}
-
-	// Call Stringer/error interfaces if they exist and the handle methods flag
-	// is enabled
-	if !d.cs.DisableMethods {
-		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
-			if handled := handleMethods(d.cs, d.w, v); handled {
-				return
-			}
-		}
-	}
-
-	switch kind {
-	case reflect.Invalid:
-		// Do nothing.  We should never get here since invalid has already
-		// been handled above.
-
-	case reflect.Bool:
-		printBool(d.w, v.Bool())
-
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		printInt(d.w, v.Int(), 10)
-
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		printUint(d.w, v.Uint(), 10)
-
-	case reflect.Float32:
-		printFloat(d.w, v.Float(), 32)
-
-	case reflect.Float64:
-		printFloat(d.w, v.Float(), 64)
-
-	case reflect.Complex64:
-		printComplex(d.w, v.Complex(), 32)
-
-	case reflect.Complex128:
-		printComplex(d.w, v.Complex(), 64)
-
-	case reflect.Slice:
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-			break
-		}
-		fallthrough
-
-	case reflect.Array:
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			d.dumpSlice(v)
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.String:
-		d.w.Write([]byte(strconv.Quote(v.String())))
-
-	case reflect.Interface:
-		// The only time we should get here is for nil interfaces due to
-		// unpackValue calls.
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-		}
-
-	case reflect.Ptr:
-		// Do nothing.  We should never get here since pointers have already
-		// been handled above.
-
-	case reflect.Map:
-		// nil maps should be indicated as different than empty maps
-		if v.IsNil() {
-			d.w.Write(nilAngleBytes)
-			break
-		}
-
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			numEntries := v.Len()
-			keys := v.MapKeys()
-			if d.cs.SortKeys {
-				sortValues(keys, d.cs)
-			}
-			for i, key := range keys {
-				d.dump(d.unpackValue(key))
-				d.w.Write(colonSpaceBytes)
-				d.ignoreNextIndent = true
-				d.dump(d.unpackValue(v.MapIndex(key)))
-				if i < (numEntries - 1) {
-					d.w.Write(commaNewlineBytes)
-				} else {
-					d.w.Write(newlineBytes)
-				}
-			}
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.Struct:
-		d.w.Write(openBraceNewlineBytes)
-		d.depth++
-		if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
-			d.indent()
-			d.w.Write(maxNewlineBytes)
-		} else {
-			vt := v.Type()
-			numFields := v.NumField()
-			for i := 0; i < numFields; i++ {
-				d.indent()
-				vtf := vt.Field(i)
-				d.w.Write([]byte(vtf.Name))
-				d.w.Write(colonSpaceBytes)
-				d.ignoreNextIndent = true
-				d.dump(d.unpackValue(v.Field(i)))
-				if i < (numFields - 1) {
-					d.w.Write(commaNewlineBytes)
-				} else {
-					d.w.Write(newlineBytes)
-				}
-			}
-		}
-		d.depth--
-		d.indent()
-		d.w.Write(closeBraceBytes)
-
-	case reflect.Uintptr:
-		printHexPtr(d.w, uintptr(v.Uint()))
-
-	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
-		printHexPtr(d.w, v.Pointer())
-
-	// There were not any other types at the time this code was written, but
-	// fall back to letting the default fmt package handle it in case any new
-	// types are added.
-	default:
-		if v.CanInterface() {
-			fmt.Fprintf(d.w, "%v", v.Interface())
-		} else {
-			fmt.Fprintf(d.w, "%v", v.String())
-		}
-	}
-}
-
-// fdump is a helper function to consolidate the logic from the various public
-// methods which take varying writers and config states.
-func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
-	for _, arg := range a {
-		if arg == nil {
-			w.Write(interfaceBytes)
-			w.Write(spaceBytes)
-			w.Write(nilAngleBytes)
-			w.Write(newlineBytes)
-			continue
-		}
-
-		d := dumpState{w: w, cs: cs}
-		d.pointers = make(map[uintptr]int)
-		d.dump(reflect.ValueOf(arg))
-		d.w.Write(newlineBytes)
-	}
-}
-
-// Fdump formats and displays the passed arguments to io.Writer w.  It formats
-// exactly the same as Dump.
-func Fdump(w io.Writer, a ...interface{}) {
-	fdump(&Config, w, a...)
-}
-
-// Sdump returns a string with the passed arguments formatted exactly the same
-// as Dump.
-func Sdump(a ...interface{}) string {
-	var buf bytes.Buffer
-	fdump(&Config, &buf, a...)
-	return buf.String()
-}
-
-/*
-Dump displays the passed parameters to standard out with newlines, customizable
-indentation, and additional debug information such as complete types and all
-pointer addresses used to indirect to the final value.  It provides the
-following features over the built-in printing facilities provided by the fmt
-package:
-
-	* Pointers are dereferenced and followed
-	* Circular data structures are detected and handled properly
-	* Custom Stringer/error interfaces are optionally invoked, including
-	  on unexported types
-	* Custom types which only implement the Stringer/error interfaces via
-	  a pointer receiver are optionally invoked when passing non-pointer
-	  variables
-	* Byte arrays and slices are dumped like the hexdump -C command which
-	  includes offsets, byte values in hex, and ASCII output
-
-The configuration options are controlled by an exported package global,
-spew.Config.  See ConfigState for options documentation.
-
-See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
-get the formatted result as a string.
-*/
-func Dump(a ...interface{}) {
-	fdump(&Config, os.Stdout, a...)
-}

vendor/github.com/davecgh/go-spew/spew/format.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"bytes"
-	"fmt"
-	"reflect"
-	"strconv"
-	"strings"
-)
-
-// supportedFlags is a list of all the character flags supported by fmt package.
-const supportedFlags = "0-+# "
-
-// formatState implements the fmt.Formatter interface and contains information
-// about the state of a formatting operation.  The NewFormatter function can
-// be used to get a new Formatter which can be used directly as arguments
-// in standard fmt package printing calls.
-type formatState struct {
-	value          interface{}
-	fs             fmt.State
-	depth          int
-	pointers       map[uintptr]int
-	ignoreNextType bool
-	cs             *ConfigState
-}
-
-// buildDefaultFormat recreates the original format string without precision
-// and width information to pass in to fmt.Sprintf in the case of an
-// unrecognized type.  Unless new types are added to the language, this
-// function won't ever be called.
-func (f *formatState) buildDefaultFormat() (format string) {
-	buf := bytes.NewBuffer(percentBytes)
-
-	for _, flag := range supportedFlags {
-		if f.fs.Flag(int(flag)) {
-			buf.WriteRune(flag)
-		}
-	}
-
-	buf.WriteRune('v')
-
-	format = buf.String()
-	return format
-}
-
-// constructOrigFormat recreates the original format string including precision
-// and width information to pass along to the standard fmt package.  This allows
-// automatic deferral of all format strings this package doesn't support.
-func (f *formatState) constructOrigFormat(verb rune) (format string) {
-	buf := bytes.NewBuffer(percentBytes)
-
-	for _, flag := range supportedFlags {
-		if f.fs.Flag(int(flag)) {
-			buf.WriteRune(flag)
-		}
-	}
-
-	if width, ok := f.fs.Width(); ok {
-		buf.WriteString(strconv.Itoa(width))
-	}
-
-	if precision, ok := f.fs.Precision(); ok {
-		buf.Write(precisionBytes)
-		buf.WriteString(strconv.Itoa(precision))
-	}
-
-	buf.WriteRune(verb)
-
-	format = buf.String()
-	return format
-}
-
-// unpackValue returns values inside of non-nil interfaces when possible and
-// ensures that types for values which have been unpacked from an interface
-// are displayed when the show types flag is also set.
-// This is useful for data types like structs, arrays, slices, and maps which
-// can contain varying types packed inside an interface.
-func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
-	if v.Kind() == reflect.Interface {
-		f.ignoreNextType = false
-		if !v.IsNil() {
-			v = v.Elem()
-		}
-	}
-	return v
-}
-
-// formatPtr handles formatting of pointers by indirecting them as necessary.
-func (f *formatState) formatPtr(v reflect.Value) {
-	// Display nil if top level pointer is nil.
-	showTypes := f.fs.Flag('#')
-	if v.IsNil() && (!showTypes || f.ignoreNextType) {
-		f.fs.Write(nilAngleBytes)
-		return
-	}
-
-	// Remove pointers at or below the current depth from map used to detect
-	// circular refs.
-	for k, depth := range f.pointers {
-		if depth >= f.depth {
-			delete(f.pointers, k)
-		}
-	}
-
-	// Keep list of all dereferenced pointers to possibly show later.
-	pointerChain := make([]uintptr, 0)
-
-	// Figure out how many levels of indirection there are by derferencing
-	// pointers and unpacking interfaces down the chain while detecting circular
-	// references.
-	nilFound := false
-	cycleFound := false
-	indirects := 0
-	ve := v
-	for ve.Kind() == reflect.Ptr {
-		if ve.IsNil() {
-			nilFound = true
-			break
-		}
-		indirects++
-		addr := ve.Pointer()
-		pointerChain = append(pointerChain, addr)
-		if pd, ok := f.pointers[addr]; ok && pd < f.depth {
-			cycleFound = true
-			indirects--
-			break
-		}
-		f.pointers[addr] = f.depth
-
-		ve = ve.Elem()
-		if ve.Kind() == reflect.Interface {
-			if ve.IsNil() {
-				nilFound = true
-				break
-			}
-			ve = ve.Elem()
-		}
-	}
-
-	// Display type or indirection level depending on flags.
-	if showTypes && !f.ignoreNextType {
-		f.fs.Write(openParenBytes)
-		f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
-		f.fs.Write([]byte(ve.Type().String()))
-		f.fs.Write(closeParenBytes)
-	} else {
-		if nilFound || cycleFound {
-			indirects += strings.Count(ve.Type().String(), "*")
-		}
-		f.fs.Write(openAngleBytes)
-		f.fs.Write([]byte(strings.Repeat("*", indirects)))
-		f.fs.Write(closeAngleBytes)
-	}
-
-	// Display pointer information depending on flags.
-	if f.fs.Flag('+') && (len(pointerChain) > 0) {
-		f.fs.Write(openParenBytes)
-		for i, addr := range pointerChain {
-			if i > 0 {
-				f.fs.Write(pointerChainBytes)
-			}
-			printHexPtr(f.fs, addr)
-		}
-		f.fs.Write(closeParenBytes)
-	}
-
-	// Display dereferenced value.
-	switch {
-	case nilFound == true:
-		f.fs.Write(nilAngleBytes)
-
-	case cycleFound == true:
-		f.fs.Write(circularShortBytes)
-
-	default:
-		f.ignoreNextType = true
-		f.format(ve)
-	}
-}
-
-// format is the main workhorse for providing the Formatter interface.  It
-// uses the passed reflect value to figure out what kind of object we are
-// dealing with and formats it appropriately.  It is a recursive function,
-// however circular data structures are detected and handled properly.
-func (f *formatState) format(v reflect.Value) {
-	// Handle invalid reflect values immediately.
-	kind := v.Kind()
-	if kind == reflect.Invalid {
-		f.fs.Write(invalidAngleBytes)
-		return
-	}
-
-	// Handle pointers specially.
-	if kind == reflect.Ptr {
-		f.formatPtr(v)
-		return
-	}
-
-	// Print type information unless already handled elsewhere.
-	if !f.ignoreNextType && f.fs.Flag('#') {
-		f.fs.Write(openParenBytes)
-		f.fs.Write([]byte(v.Type().String()))
-		f.fs.Write(closeParenBytes)
-	}
-	f.ignoreNextType = false
-
-	// Call Stringer/error interfaces if they exist and the handle methods
-	// flag is enabled.
-	if !f.cs.DisableMethods {
-		if (kind != reflect.Invalid) && (kind != reflect.Interface) {
-			if handled := handleMethods(f.cs, f.fs, v); handled {
-				return
-			}
-		}
-	}
-
-	switch kind {
-	case reflect.Invalid:
-		// Do nothing.  We should never get here since invalid has already
-		// been handled above.
-
-	case reflect.Bool:
-		printBool(f.fs, v.Bool())
-
-	case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
-		printInt(f.fs, v.Int(), 10)
-
-	case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
-		printUint(f.fs, v.Uint(), 10)
-
-	case reflect.Float32:
-		printFloat(f.fs, v.Float(), 32)
-
-	case reflect.Float64:
-		printFloat(f.fs, v.Float(), 64)
-
-	case reflect.Complex64:
-		printComplex(f.fs, v.Complex(), 32)
-
-	case reflect.Complex128:
-		printComplex(f.fs, v.Complex(), 64)
-
-	case reflect.Slice:
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-			break
-		}
-		fallthrough
-
-	case reflect.Array:
-		f.fs.Write(openBracketBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			numEntries := v.Len()
-			for i := 0; i < numEntries; i++ {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				f.ignoreNextType = true
-				f.format(f.unpackValue(v.Index(i)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeBracketBytes)
-
-	case reflect.String:
-		f.fs.Write([]byte(v.String()))
-
-	case reflect.Interface:
-		// The only time we should get here is for nil interfaces due to
-		// unpackValue calls.
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-		}
-
-	case reflect.Ptr:
-		// Do nothing.  We should never get here since pointers have already
-		// been handled above.
-
-	case reflect.Map:
-		// nil maps should be indicated as different than empty maps
-		if v.IsNil() {
-			f.fs.Write(nilAngleBytes)
-			break
-		}
-
-		f.fs.Write(openMapBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			keys := v.MapKeys()
-			if f.cs.SortKeys {
-				sortValues(keys, f.cs)
-			}
-			for i, key := range keys {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				f.ignoreNextType = true
-				f.format(f.unpackValue(key))
-				f.fs.Write(colonBytes)
-				f.ignoreNextType = true
-				f.format(f.unpackValue(v.MapIndex(key)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeMapBytes)
-
-	case reflect.Struct:
-		numFields := v.NumField()
-		f.fs.Write(openBraceBytes)
-		f.depth++
-		if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
-			f.fs.Write(maxShortBytes)
-		} else {
-			vt := v.Type()
-			for i := 0; i < numFields; i++ {
-				if i > 0 {
-					f.fs.Write(spaceBytes)
-				}
-				vtf := vt.Field(i)
-				if f.fs.Flag('+') || f.fs.Flag('#') {
-					f.fs.Write([]byte(vtf.Name))
-					f.fs.Write(colonBytes)
-				}
-				f.format(f.unpackValue(v.Field(i)))
-			}
-		}
-		f.depth--
-		f.fs.Write(closeBraceBytes)
-
-	case reflect.Uintptr:
-		printHexPtr(f.fs, uintptr(v.Uint()))
-
-	case reflect.UnsafePointer, reflect.Chan, reflect.Func:
-		printHexPtr(f.fs, v.Pointer())
-
-	// There were not any other types at the time this code was written, but
-	// fall back to letting the default fmt package handle it if any get added.
-	default:
-		format := f.buildDefaultFormat()
-		if v.CanInterface() {
-			fmt.Fprintf(f.fs, format, v.Interface())
-		} else {
-			fmt.Fprintf(f.fs, format, v.String())
-		}
-	}
-}
-
-// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
-// details.
-func (f *formatState) Format(fs fmt.State, verb rune) {
-	f.fs = fs
-
-	// Use standard formatting for verbs that are not v.
-	if verb != 'v' {
-		format := f.constructOrigFormat(verb)
-		fmt.Fprintf(fs, format, f.value)
-		return
-	}
-
-	if f.value == nil {
-		if fs.Flag('#') {
-			fs.Write(interfaceBytes)
-		}
-		fs.Write(nilAngleBytes)
-		return
-	}
-
-	f.format(reflect.ValueOf(f.value))
-}
-
-// newFormatter is a helper function to consolidate the logic from the various
-// public methods which take varying config states.
-func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
-	fs := &formatState{value: v, cs: cs}
-	fs.pointers = make(map[uintptr]int)
-	return fs
-}
-
-/*
-NewFormatter returns a custom formatter that satisfies the fmt.Formatter
-interface.  As a result, it integrates cleanly with standard fmt package
-printing functions.  The formatter is useful for inline printing of smaller data
-types similar to the standard %v format specifier.
-
-The custom formatter only responds to the %v (most compact), %+v (adds pointer
-addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
-combinations.  Any other verbs such as %x and %q will be sent to the the
-standard fmt package for formatting.  In addition, the custom formatter ignores
-the width and precision arguments (however they will still work on the format
-specifiers not handled by the custom formatter).
-
-Typically this function shouldn't be called directly.  It is much easier to make
-use of the custom formatter by calling one of the convenience functions such as
-Printf, Println, or Fprintf.
-*/
-func NewFormatter(v interface{}) fmt.Formatter {
-	return newFormatter(&Config, v)
-}

vendor/github.com/davecgh/go-spew/spew/spew.go

-/*
- * Copyright (c) 2013 Dave Collins <dave@davec.name>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-package spew
-
-import (
-	"fmt"
-	"io"
-)
-
-// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the formatted string as a value that satisfies error.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Errorf(format string, a ...interface{}) (err error) {
-	return fmt.Errorf(format, convertArgs(a)...)
-}
-
-// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprint(w, convertArgs(a)...)
-}
-
-// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
-	return fmt.Fprintf(w, format, convertArgs(a)...)
-}
-
-// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
-// passed with a default Formatter interface returned by NewFormatter.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
-func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
-	return fmt.Fprintln(w, convertArgs(a)...)
-}
-
-// Print is a wrapper for fmt.Print that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
-func Print(a ...interface{}) (n int, err error) {
-	return fmt.Print(convertArgs(a)...)
-}
-
-// Printf is a wrapper for fmt.Printf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Printf(format string, a ...interface{}) (n int, err error) {
-	return fmt.Printf(format, convertArgs(a)...)
-}
-
-// Println is a wrapper for fmt.Println that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the number of bytes written and any write error encountered.  See
-// NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
-func Println(a ...interface{}) (n int, err error) {
-	return fmt.Println(convertArgs(a)...)
-}
-
-// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprint(a ...interface{}) string {
-	return fmt.Sprint(convertArgs(a)...)
-}
-
-// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
-// passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprintf(format string, a ...interface{}) string {
-	return fmt.Sprintf(format, convertArgs(a)...)
-}
-
-// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
-// were passed with a default Formatter interface returned by NewFormatter.  It
-// returns the resulting string.  See NewFormatter for formatting details.
-//
-// This function is shorthand for the following syntax:
-//
-//	fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
-func Sprintln(a ...interface{}) string {
-	return fmt.Sprintln(convertArgs(a)...)
-}
-
-// convertArgs accepts a slice of arguments and returns a slice of the same
-// length with each argument converted to a default spew Formatter interface.
-func convertArgs(args []interface{}) (formatters []interface{}) {
-	formatters = make([]interface{}, len(args))
-	for index, arg := range args {
-		formatters[index] = NewFormatter(arg)
-	}
-	return formatters
-}

vendor/github.com/docker/distribution/.gitignore

-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-*.test
-*.prof
-
-# never checkin from the bin file (for now)
-bin/*
-
-# Test key files
-*.pem
-
-# Cover profiles
-*.out
-
-# Editor/IDE specific files.
-*.sublime-project
-*.sublime-workspace
-.idea/*

vendor/github.com/docker/distribution/.mailmap

-Stephen J Day <stephen.day@docker.com>  Stephen Day <stevvooe@users.noreply.github.com>
-Stephen J Day <stephen.day@docker.com>  Stephen Day <stevvooe@gmail.com>
-Olivier Gambier <olivier@docker.com>    Olivier Gambier <dmp42@users.noreply.github.com>
-Brian Bland <brian.bland@docker.com>    Brian Bland <r4nd0m1n4t0r@gmail.com>
-Brian Bland <brian.bland@docker.com> Brian Bland <brian.t.bland@gmail.com>
-Josh Hawn <josh.hawn@docker.com>        Josh Hawn <jlhawn@berkeley.edu>
-Richard Scothern <richard.scothern@docker.com> Richard <richard.scothern@gmail.com>
-Richard Scothern <richard.scothern@docker.com> Richard Scothern <richard.scothern@gmail.com>
-Andrew Meredith <andymeredith@gmail.com> Andrew Meredith <kendru@users.noreply.github.com>
-harche <p.harshal@gmail.com> harche <harche@users.noreply.github.com>
-Jessie Frazelle <jessie@docker.com>  <jfrazelle@users.noreply.github.com>
-Sharif Nassar <sharif@mrwacky.com> Sharif Nassar <mrwacky42@users.noreply.github.com>
-Sven Dowideit <SvenDowideit@home.org.au> Sven Dowideit <SvenDowideit@users.noreply.github.com>
-Vincent Giersch <vincent.giersch@ovh.net> Vincent Giersch <vincent@giersch.fr>
-davidli <wenquan.li@hp.com> davidli <wenquan.li@hpe.com>
-Omer Cohen <git@omer.io> Omer Cohen <git@omerc.net>
-Eric Yang <windfarer@gmail.com> Eric Yang <Windfarer@users.noreply.github.com>
-Nikita Tarasov <nikita@mygento.ru> Nikita <luckyraul@users.noreply.github.com>

vendor/github.com/docker/distribution/BUILDING.md

-
-# Building the registry source
-
-## Use-case
-
-This is useful if you intend to actively work on the registry.
-
-### Alternatives
-
-Most people should use the [official Registry docker image](https://hub.docker.com/r/library/registry/).
-
-People looking for advanced operational use cases might consider rolling their own image with a custom Dockerfile inheriting `FROM registry:2`.
-
-OS X users who want to run natively can do so following [the instructions here](https://github.com/docker/docker.github.io/blob/master/registry/recipes/osx-setup-guide.md).
-
-### Gotchas
-
-You are expected to know your way around with go & git.
-
-If you are a casual user with no development experience, and no preliminary knowledge of go, building from source is probably not a good solution for you.
-
-## Build the development environment
-
-The first prerequisite of properly building distribution targets is to have a Go
-development environment setup. Please follow [How to Write Go Code](https://golang.org/doc/code.html)
-for proper setup. If done correctly, you should have a GOROOT and GOPATH set in the
-environment.
-
-If a Go development environment is setup, one can use `go get` to install the
-`registry` command from the current latest:
-
-    go get github.com/docker/distribution/cmd/registry
-
-The above will install the source repository into the `GOPATH`.
-
-Now create the directory for the registry data (this might require you to set permissions properly)
-
-    mkdir -p /var/lib/registry
-
-... or alternatively `export REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/somewhere` if you want to store data into another location.
-
-The `registry`
-binary can then be run with the following:
-
-    $ $GOPATH/bin/registry --version
-    $GOPATH/bin/registry github.com/docker/distribution v2.0.0-alpha.1+unknown
-
-> __NOTE:__ While you do not need to use `go get` to checkout the distribution
-> project, for these build instructions to work, the project must be checked
-> out in the correct location in the `GOPATH`. This should almost always be
-> `$GOPATH/src/github.com/docker/distribution`.
-
-The registry can be run with the default config using the following
-incantation:
-
-    $ $GOPATH/bin/registry serve $GOPATH/src/github.com/docker/distribution/cmd/registry/config-example.yml
-    INFO[0000] endpoint local-5003 disabled, skipping        app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
-    INFO[0000] endpoint local-8083 disabled, skipping        app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
-    INFO[0000] listening on :5000                            app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
-    INFO[0000] debug server listening localhost:5001
-
-If it is working, one should see the above log messages.
-
-### Repeatable Builds
-
-For the full development experience, one should `cd` into
-`$GOPATH/src/github.com/docker/distribution`. From there, the regular `go`
-commands, such as `go test`, should work per package (please see
-[Developing](#developing) if they don't work).
-
-A `Makefile` has been provided as a convenience to support repeatable builds.
-Please install the following into `GOPATH` for it to work:
-
-    go get github.com/golang/lint/golint
-
-Once these commands are available in the `GOPATH`, run `make` to get a full
-build:
-
-    $ make
-    + clean
-    + fmt
-    + vet
-    + lint
-    + build
-    github.com/docker/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar
-    github.com/sirupsen/logrus
-    github.com/docker/libtrust
-    ...
-    github.com/yvasiyarov/gorelic
-    github.com/docker/distribution/registry/handlers
-    github.com/docker/distribution/cmd/registry
-    + test
-    ...
-    ok    github.com/docker/distribution/digest 7.875s
-    ok    github.com/docker/distribution/manifest 0.028s
-    ok    github.com/docker/distribution/notifications  17.322s
-    ?     github.com/docker/distribution/registry [no test files]
-    ok    github.com/docker/distribution/registry/api/v2  0.101s
-    ?     github.com/docker/distribution/registry/auth  [no test files]
-    ok    github.com/docker/distribution/registry/auth/silly  0.011s
-    ...
-    + /Users/sday/go/src/github.com/docker/distribution/bin/registry
-    + /Users/sday/go/src/github.com/docker/distribution/bin/registry-api-descriptor-template
-    + binaries
-
-The above provides a repeatable build using the contents of the vendor
-directory. This includes formatting, vetting, linting, building,
-testing and generating tagged binaries. We can verify this worked by running
-the registry binary generated in the "./bin" directory:
-
-    $ ./bin/registry --version
-    ./bin/registry github.com/docker/distribution v2.0.0-alpha.2-80-g16d8b2c.m
-
-### Optional build tags
-
-Optional [build tags](http://golang.org/pkg/go/build/) can be provided using
-the environment variable `DOCKER_BUILDTAGS`.

vendor/github.com/docker/distribution/CHANGELOG.md

-# Changelog
-
-## 2.6.0 (2017-01-18)
-
-#### Storage
-- S3: fixed bug in delete due to read-after-write inconsistency
-- S3: allow EC2 IAM roles to be used when authorizing region endpoints
-- S3: add Object ACL Support
-- S3: fix delete method's notion of subpaths
-- S3: use multipart upload API in `Move` method for performance
-- S3: add v2 signature signing for legacy S3 clones
-- Swift: add simple heuristic to detect incomplete DLOs during read ops
-- Swift: support different user and tenant domains
-- Swift: bulk deletes in chunks
-- Aliyun OSS: fix delete method's notion of subpaths
-- Aliyun OSS: optimize data copy after upload finishes
-- Azure: close leaking response body
-- Fix storage drivers dropping non-EOF errors when listing repositories
-- Compare path properly when listing repositories in catalog
-- Add a foreign layer URL host whitelist
-- Improve catalog enumerate runtime
-
-#### Registry
-- Export `storage.CreateOptions` in top-level package
-- Enable notifications to endpoints that use self-signed certificates
-- Properly validate multi-URL foreign layers
-- Add control over validation of URLs in pushed manifests
-- Proxy mode: fix socket leak when pull is cancelled
-- Tag service: properly handle error responses on HEAD request
-- Support for custom authentication URL in proxying registry
-- Add configuration option to disable access logging
-- Add notification filtering by target media type
-- Manifest: `References()` returns all children
-- Honor `X-Forwarded-Port` and Forwarded headers
-- Reference: Preserve tag and digest in With* functions
-- Add policy configuration for enforcing repository classes
-
-#### Client
-- Changes the client Tags `All()` method to follow links
-- Allow registry clients to connect via HTTP2
-- Better handling of OAuth errors in client
-  
-#### Spec
-- Manifest: clarify relationship between urls and foreign layers
-- Authorization: add support for repository classes
-
-#### Manifest
-- Override media type returned from `Stat()` for existing manifests
-- Add plugin mediatype to distribution manifest
-
-#### Docs
-- Document `TOOMANYREQUESTS` error code
-- Document required Let's Encrypt port
-- Improve documentation around implementation of OAuth2
-- Improve documentation for configuration
-
-#### Auth
-- Add support for registry type in scope
-- Add support for using v2 ping challenges for v1
-- Add leeway to JWT `nbf` and `exp` checking
-- htpasswd: dynamically parse htpasswd file
-- Fix missing auth headers with PATCH HTTP request when pushing to default port
-
-#### Dockerfile
-- Update to go1.7
-- Reorder Dockerfile steps for better layer caching
-
-#### Notes
-
-Documentation has moved to the documentation repository at
-`github.com/docker/docker.github.io/tree/master/registry`
-
-The registry is go 1.7 compliant, and passes newer, more restrictive `lint` and `vet` ing.
-
-
-## 2.5.0 (2016-06-14)
-
-#### Storage
-- Ensure uploads directory is cleaned after upload is committed
-- Add ability to cap concurrent operations in filesystem driver
-- S3: Add 'us-gov-west-1' to the valid region list
-- Swift: Handle ceph not returning Last-Modified header for HEAD requests
-- Add redirect middleware
-
-#### Registry
-- Add support for blobAccessController middleware
-- Add support for layers from foreign sources
-- Remove signature store
-- Add support for Let's Encrypt
-- Correct yaml key names in configuration
-
-#### Client
-- Add option to get content digest from manifest get
-
-#### Spec
-- Update the auth spec scope grammar to reflect the fact that hostnames are optionally supported
-- Clarify API documentation around catalog fetch behavior
-
-#### API
-- Support returning HTTP 429 (Too Many Requests)
-
-#### Documentation
-- Update auth documentation examples to show "expires in" as int
-
-#### Docker Image
-- Use Alpine Linux as base image
-
-

vendor/github.com/docker/distribution/CONTRIBUTING.md

-# Contributing to the registry
-
-## Before reporting an issue...
-
-### If your problem is with...
-
- - automated builds
- - your account on the [Docker Hub](https://hub.docker.com/)
- - any other [Docker Hub](https://hub.docker.com/) issue
-
-Then please do not report your issue here - you should instead report it to [https://support.docker.com](https://support.docker.com)
-
-### If you...
-
- - need help setting up your registry
- - can't figure out something
- - are not sure what's going on or what your problem is
-
-Then please do not open an issue here yet - you should first try one of the following support forums:
-
- - irc: #docker-distribution on freenode
- - mailing-list: <distribution@dockerproject.org> or https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution
-
-### Reporting security issues
-
-The Docker maintainers take security seriously. If you discover a security
-issue, please bring it to their attention right away!
-
-Please **DO NOT** file a public issue, instead send your report privately to
-[security@docker.com](mailto:security@docker.com).
-
-## Reporting an issue properly
-
-By following these simple rules you will get better and faster feedback on your issue.
-
- - search the bugtracker for an already reported issue
-
-### If you found an issue that describes your problem:
-
- - please read other user comments first, and confirm this is the same issue: a given error condition might be indicative of different problems - you may also find a workaround in the comments
- - please refrain from adding "same thing here" or "+1" comments
- - you don't need to comment on an issue to get notified of updates: just hit the "subscribe" button
- - comment if you have some new, technical and relevant information to add to the case
- - __DO NOT__ comment on closed issues or merged PRs. If you think you have a related problem, open up a new issue and reference the PR or issue.
-
-### If you have not found an existing issue that describes your problem:
-
- 1. create a new issue, with a succinct title that describes your issue:
-   - bad title: "It doesn't work with my docker"
-   - good title: "Private registry push fail: 400 error with E_INVALID_DIGEST"
- 2. copy the output of:
-   - `docker version`
-   - `docker info`
-   - `docker exec <registry-container> registry --version`
- 3. copy the command line you used to launch your Registry
- 4. restart your docker daemon in debug mode (add `-D` to the daemon launch arguments)
- 5. reproduce your problem and get your docker daemon logs showing the error
- 6. if relevant, copy your registry logs that show the error
- 7. provide any relevant detail about your specific Registry configuration (e.g., storage backend used)
- 8. indicate if you are using an enterprise proxy, Nginx, or anything else between you and your Registry
-
-## Contributing a patch for a known bug, or a small correction
-
-You should follow the basic GitHub workflow:
-
- 1. fork
- 2. commit a change
- 3. make sure the tests pass
- 4. PR
-
-Additionally, you must [sign your commits](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#sign-your-work). It's very simple:
-
- - configure your name with git: `git config user.name "Real Name" && git config user.email mail@example.com`
- - sign your commits using `-s`: `git commit -s -m "My commit"`
-
-Some simple rules to ensure quick merge:
-
- - clearly point to the issue(s) you want to fix in your PR comment (e.g., `closes #12345`)
- - prefer multiple (smaller) PRs addressing individual issues over a big one trying to address multiple issues at once
- - if you need to amend your PR following comments, please squash instead of adding more commits
-
-## Contributing new features
-
-You are heavily encouraged to first discuss what you want to do. You can do so on the irc channel, or by opening an issue that clearly describes the use case you want to fulfill, or the problem you are trying to solve.
-
-If this is a major new feature, you should then submit a proposal that describes your technical solution and reasoning.
-If you did discuss it first, this will likely be greenlighted very fast. It's advisable to address all feedback on this proposal before starting actual work.
-
-Then you should submit your implementation, clearly linking to the issue (and possible proposal).
-
-Your PR will be reviewed by the community, then ultimately by the project maintainers, before being merged.
-
-It's mandatory to:
-
- - interact respectfully with other community members and maintainers - more generally, you are expected to abide by the [Docker community rules](https://github.com/docker/docker/blob/master/CONTRIBUTING.md#docker-community-guidelines)
- - address maintainers' comments and modify your submission accordingly
- - write tests for any new code
-
-Complying to these simple rules will greatly accelerate the review process, and will ensure you have a pleasant experience in contributing code to the Registry.
-
-Have a look at a great, successful contribution: the [Swift driver PR](https://github.com/docker/distribution/pull/493)
-
-## Coding Style
-
-Unless explicitly stated, we follow all coding guidelines from the Go
-community. While some of these standards may seem arbitrary, they somehow seem
-to result in a solid, consistent codebase.
-
-It is possible that the code base does not currently comply with these
-guidelines. We are not looking for a massive PR that fixes this, since that
-goes against the spirit of the guidelines. All new contributions should make a
-best effort to clean up and make the code base better than they left it.
-Obviously, apply your best judgement. Remember, the goal here is to make the
-code base easier for humans to navigate and understand. Always keep that in
-mind when nudging others to comply.
-
-The rules:
-
-1. All code should be formatted with `gofmt -s`.
-2. All code should pass the default levels of
-   [`golint`](https://github.com/golang/lint).
-3. All code should follow the guidelines covered in [Effective
-   Go](http://golang.org/doc/effective_go.html) and [Go Code Review
-   Comments](https://github.com/golang/go/wiki/CodeReviewComments).
-4. Comment the code. Tell us the why, the history and the context.
-5. Document _all_ declarations and methods, even private ones. Declare
-   expectations, caveats and anything else that may be important. If a type
-   gets exported, having the comments already there will ensure it's ready.
-6. Variable name length should be proportional to its context and no longer.
-   `noCommaALongVariableNameLikeThisIsNotMoreClearWhenASimpleCommentWouldDo`.
-   In practice, short methods will have short variable names and globals will
-   have longer names.
-7. No underscores in package names. If you need a compound name, step back,
-   and re-examine why you need a compound name. If you still think you need a
-   compound name, lose the underscore.
-8. No utils or helpers packages. If a function is not general enough to
-   warrant its own package, it has not been written generally enough to be a
-   part of a util package. Just leave it unexported and well-documented.
-9. All tests should run with `go test` and outside tooling should not be
-   required. No, we don't need another unit testing framework. Assertion
-   packages are acceptable if they provide _real_ incremental value.
-10. Even though we call these "rules" above, they are actually just
-    guidelines. Since you've read all the rules, you now know that.
-
-If you are having trouble getting into the mood of idiomatic Go, we recommend
-reading through [Effective Go](http://golang.org/doc/effective_go.html). The
-[Go Blog](http://blog.golang.org/) is also a great resource. Drinking the
-kool-aid is a lot easier than going thirsty.

vendor/github.com/docker/distribution/Dockerfile

-FROM golang:1.8-alpine
-
-ENV DISTRIBUTION_DIR /go/src/github.com/docker/distribution
-ENV DOCKER_BUILDTAGS include_oss include_gcs
-
-ARG GOOS=linux
-ARG GOARCH=amd64
-
-RUN set -ex \
-    && apk add --no-cache make git
-
-WORKDIR $DISTRIBUTION_DIR
-COPY . $DISTRIBUTION_DIR
-COPY cmd/registry/config-dev.yml /etc/docker/registry/config.yml
-
-RUN make PREFIX=/go clean binaries
-
-VOLUME ["/var/lib/registry"]
-EXPOSE 5000
-ENTRYPOINT ["registry"]
-CMD ["serve", "/etc/docker/registry/config.yml"]

vendor/github.com/docker/distribution/MAINTAINERS

-# Distribution maintainers file
-#
-# This file describes who runs the docker/distribution project and how.
-# This is a living document - if you see something out of date or missing, speak up!
-#
-# It is structured to be consumable by both humans and programs.
-# To extract its contents programmatically, use any TOML-compliant parser.
-#
-# This file is compiled into the MAINTAINERS file in docker/opensource.
-#
-[Org]
-	[Org."Core maintainers"]
-		people = [
-			"aaronlehmann",
-			"dmcgowan",
-			"dmp42",
-			"richardscothern",
-			"shykes",
-			"stevvooe",
-		]
-
-[people]
-
-# A reference list of all people associated with the project.
-# All other sections should refer to people by their canonical key
-# in the people section.
-
-	# ADD YOURSELF HERE IN ALPHABETICAL ORDER
-
-	[people.aaronlehmann]
-	Name = "Aaron Lehmann"
-	Email = "aaron.lehmann@docker.com"
-	GitHub = "aaronlehmann"
-
-	[people.dmcgowan]
-	Name = "Derek McGowan"
-	Email = "derek@mcgstyle.net"
-	GitHub = "dmcgowan"
-
-	[people.dmp42]
-	Name = "Olivier Gambier"
-	Email = "olivier@docker.com"
-	GitHub = "dmp42"
-
-	[people.richardscothern]
-	Name = "Richard Scothern"
-	Email = "richard.scothern@gmail.com"
-	GitHub = "richardscothern"
-
-	[people.shykes]
-	Name = "Solomon Hykes"
-	Email = "solomon@docker.com"
-	GitHub = "shykes"
-
-	[people.stevvooe]
-	Name = "Stephen Day"
-	Email = "stephen.day@docker.com"
-	GitHub = "stevvooe"

vendor/github.com/docker/distribution/Makefile

-# Set an output prefix, which is the local directory if not specified
-PREFIX?=$(shell pwd)
-
-
-# Used to populate version variable in main package.
-VERSION=$(shell git describe --match 'v[0-9]*' --dirty='.m' --always)
-
-# Allow turning off function inlining and variable registerization
-ifeq (${DISABLE_OPTIMIZATION},true)
-	GO_GCFLAGS=-gcflags "-N -l"
-	VERSION:="$(VERSION)-noopt"
-endif
-
-GO_LDFLAGS=-ldflags "-X `go list ./version`.Version=$(VERSION)"
-
-.PHONY: all build binaries clean dep-restore dep-save dep-validate fmt lint test test-full vet
-.DEFAULT: all
-all: fmt vet lint build test binaries
-
-AUTHORS: .mailmap .git/HEAD
-	 git log --format='%aN <%aE>' | sort -fu > $@
-
-# This only needs to be generated by hand when cutting full releases.
-version/version.go:
-	./version/version.sh > $@
-
-# Required for go 1.5 to build
-GO15VENDOREXPERIMENT := 1
-
-# Go files
-GOFILES=$(shell find . -type f -name '*.go')
-
-# Package list
-PKGS=$(shell go list -tags "${DOCKER_BUILDTAGS}" ./... | grep -v ^github.com/docker/distribution/vendor/)
-
-# Resolving binary dependencies for specific targets
-GOLINT=$(shell which golint || echo '')
-VNDR=$(shell which vndr || echo '')
-
-${PREFIX}/bin/registry: $(GOFILES)
-	@echo "+ $@"
-	@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS}  ${GO_GCFLAGS} ./cmd/registry
-
-${PREFIX}/bin/digest:  $(GOFILES)
-	@echo "+ $@"
-	@go build -tags "${DOCKER_BUILDTAGS}" -o $@ ${GO_LDFLAGS}  ${GO_GCFLAGS} ./cmd/digest
-
-${PREFIX}/bin/registry-api-descriptor-template: $(GOFILES)
-	@echo "+ $@"
-	@go build -o $@ ${GO_LDFLAGS} ${GO_GCFLAGS} ./cmd/registry-api-descriptor-template
-
-docs/spec/api.md: docs/spec/api.md.tmpl ${PREFIX}/bin/registry-api-descriptor-template
-	./bin/registry-api-descriptor-template $< > $@
-
-vet:
-	@echo "+ $@"
-	@go vet -tags "${DOCKER_BUILDTAGS}" $(PKGS)
-
-fmt:
-	@echo "+ $@"
-	@test -z "$$(gofmt -s -l . 2>&1 | grep -v ^vendor/ | tee /dev/stderr)" || \
-		(echo >&2 "+ please format Go code with 'gofmt -s'" && false)
-
-lint:
-	@echo "+ $@"
-	$(if $(GOLINT), , \
-		$(error Please install golint: `go get -u github.com/golang/lint/golint`))
-	@test -z "$$($(GOLINT) ./... 2>&1 | grep -v ^vendor/ | tee /dev/stderr)"
-
-build:
-	@echo "+ $@"
-	@go build -tags "${DOCKER_BUILDTAGS}" -v ${GO_LDFLAGS} $(PKGS)
-
-test:
-	@echo "+ $@"
-	@go test -test.short -tags "${DOCKER_BUILDTAGS}" $(PKGS)
-
-test-full:
-	@echo "+ $@"
-	@go test -tags "${DOCKER_BUILDTAGS}" $(PKGS)
-
-binaries: ${PREFIX}/bin/registry ${PREFIX}/bin/digest ${PREFIX}/bin/registry-api-descriptor-template
-	@echo "+ $@"
-
-clean:
-	@echo "+ $@"
-	@rm -rf "${PREFIX}/bin/registry" "${PREFIX}/bin/digest" "${PREFIX}/bin/registry-api-descriptor-template"
-
-dep-validate:
-	@echo "+ $@"
-	$(if $(VNDR), , \
-		$(error Please install vndr: go get github.com/lk4d4/vndr))
-	@rm -Rf .vendor.bak
-	@mv vendor .vendor.bak
-	@$(VNDR)
-	@test -z "$$(diff -r vendor .vendor.bak 2>&1 | tee /dev/stderr)" || \
-		(echo >&2 "+ inconsistent dependencies! what you have in vendor.conf does not match with what you have in vendor" && false)
-	@rm -Rf vendor
-	@mv .vendor.bak vendor

vendor/github.com/docker/distribution/RELEASE-CHECKLIST.md

-## Registry Release Checklist
-
-10. Compile release notes detailing features and since the last release.
-
-  Update the `CHANGELOG.md` file and create a PR to master with the updates.
-Once that PR has been approved by maintainers the change may be cherry-picked
-to the release branch (new release branches may be forked from this commit).
-
-20. Update the version file: `https://github.com/docker/distribution/blob/master/version/version.go`
-
-30. Update the `MAINTAINERS` (if necessary), `AUTHORS` and `.mailmap` files.
-
-```
-make AUTHORS
-```
-
-40. Create a signed tag.
-
-   Distribution uses semantic versioning.  Tags are of the format
-`vx.y.z[-rcn]`. You will need PGP installed and a PGP key which has been added
-to your Github account. The comment for the tag should include the release
-notes, use previous tags as a guide for formatting consistently. Run
-`git tag -s vx.y.z[-rcn]` to create tag and `git -v vx.y.z[-rcn]` to verify tag,
-check comment and correct commit hash.
-
-50. Push the signed tag
-
-60. Create a new [release](https://github.com/docker/distribution/releases).  In the case of a release candidate, tick the `pre-release` checkbox. 
-
-70. Update the registry binary in [distribution library image repo](https://github.com/docker/distribution-library-image) by running the update script and  opening a pull request.
-
-80. Update the official image.  Add the new version in the [official images repo](https://github.com/docker-library/official-images) by appending a new version to the `registry/registry` file with the git hash pointed to by the signed tag.  Update the major version to point to the latest version and the minor version to point to new patch release if necessary.
-e.g. to release `2.3.1`
-
-   `2.3.1 (new)`
-
-   `2.3.0 -> 2.3.0` can be removed
-
-   `2 -> 2.3.1`
-
-   `2.3 -> 2.3.1`
-
-90. Build a new distribution/registry image on [Docker hub](https://hub.docker.com/u/distribution/dashboard) by adding a new automated build with the new tag and re-building the images.
-

vendor/github.com/docker/distribution/cmd/registry/config-cache.yml

-version: 0.1
-log:
-  level: debug
-  fields:
-    service: registry
-    environment: development
-storage:
-    cache:
-        blobdescriptor: redis
-    filesystem:
-        rootdirectory: /var/lib/registry-cache
-    maintenance:
-        uploadpurging:
-            enabled: false
-http:
-    addr: :5000
-    secret: asecretforlocaldevelopment
-    debug:
-        addr: localhost:5001
-    headers:
-        X-Content-Type-Options: [nosniff]
-redis:
-  addr: localhost:6379
-  pool:
-    maxidle: 16
-    maxactive: 64
-    idletimeout: 300s
-  dialtimeout: 10ms
-  readtimeout: 10ms
-  writetimeout: 10ms
-notifications:
-    endpoints:
-        - name: local-8082
-          url: http://localhost:5003/callback
-          headers:
-             Authorization: [Bearer <an example token>]
-          timeout: 1s
-          threshold: 10
-          backoff: 1s
-          disabled: true
-        - name: local-8083
-          url: http://localhost:8083/callback
-          timeout: 1s
-          threshold: 10
-          backoff: 1s
-          disabled: true
-proxy:
-  remoteurl: https://registry-1.docker.io
-  username: username
-  password: password
-health:
-  storagedriver:
-    enabled: true
-    interval: 10s
-    threshold: 3

vendor/github.com/docker/distribution/cmd/registry/config-example.yml

-version: 0.1
-log:
-  fields:
-    service: registry
-storage:
-  cache:
-    blobdescriptor: inmemory
-  filesystem:
-    rootdirectory: /var/lib/registry
-http:
-  addr: :5000
-  headers:
-    X-Content-Type-Options: [nosniff]
-health:
-  storagedriver:
-    enabled: true
-    interval: 10s
-    threshold: 3

vendor/github.com/docker/distribution/contrib/compose/nginx/Dockerfile

-FROM nginx:1.7
-
-COPY nginx.conf /etc/nginx/nginx.conf
-COPY registry.conf /etc/nginx/conf.d/registry.conf
-COPY docker-registry.conf /etc/nginx/docker-registry.conf
-COPY docker-registry-v2.conf /etc/nginx/docker-registry-v2.conf

vendor/github.com/docker/distribution/contrib/compose/nginx/docker-registry-v2.conf

-proxy_pass                          http://docker-registry-v2;
-proxy_set_header  Host              $http_host;   # required for docker client's sake
-proxy_set_header  X-Real-IP         $remote_addr; # pass on real client's IP
-proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
-proxy_set_header  X-Forwarded-Proto $scheme;
-proxy_read_timeout                  900;