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inclavare-containers
提交 b29509be 编写于 作者: J jiazhiguang
浏览文件
操作

reimplement the bundle cache

上级 8d46bc6a
展开全部 隐藏空白更改
内联 并排
Showing with 17610 addition and 155 deletion
epm/Makefile
浏览文件 @ b29509be
...@@ -4,6 +4,10 @@ ROOTDIR=$(dir $(abspath $(lastword $(MAKEFILE_LIST)))) ...@@ -4,6 +4,10 @@ ROOTDIR=$(dir $(abspath $(lastword $(MAKEFILE_LIST))))
# Base path used to install. # Base path used to install.
DESTDIR ?= /usr/local DESTDIR ?= /usr/local
ifneq ($(GO111MODULE),off)
MOD_VENDOR := "-mod=vendor"
endif
ifneq "$(strip $(shell command -v go 2>/dev/null))" "" ifneq "$(strip $(shell command -v go 2>/dev/null))" ""
GOOS ?= $(shell go env GOOS) GOOS ?= $(shell go env GOOS)
GOARCH ?= $(shell go env GOARCH) GOARCH ?= $(shell go env GOARCH)
...@@ -47,7 +51,7 @@ all: binaries ...@@ -47,7 +51,7 @@ all: binaries
# Build a binary from a cmd. # Build a binary from a cmd.
bin/epm: bin/epm:
@echo "bin/epm" @echo "bin/epm"
@CGO_ENABLED=${EPM_CGO_ENABLED} GOOS=${GOOS} go build ${GO_BUILD_FLAGS} -o bin/epm ./cmd/epm/main.go @CGO_ENABLED=${EPM_CGO_ENABLED} GOOS=${GOOS} go build $(MOD_VENDOR) ${GO_BUILD_FLAGS} -o bin/epm ./cmd/epm/main.go
binaries: clean $(BINARIES) ## build binaries binaries: clean $(BINARIES) ## build binaries
......
epm/cmd/epm/app/server.go
浏览文件 @ b29509be
...@@ -44,25 +44,14 @@ func runServer(opts *options.Options) error { ...@@ -44,25 +44,14 @@ func runServer(opts *options.Options) error {
server := epm.EnclavePoolManagerServer{} server := epm.EnclavePoolManagerServer{}
bundleCache0 := occlum.BundleCach0Manager{ bundleCache0 := occlum.NewBundleCach0Manager(cfg.Root, metadata)
DefaultEnclavePool: epm.DefaultEnclavePool{ bundleCache1 := occlum.NewBundleCach1Manager(cfg.Root, metadata)
Root: cfg.Root, bundleCache2 := occlum.NewBundleCach2Manager(cfg.Root, metadata)
CacheMetadata: metadata,
}}
bundleCache1 := occlum.BundleCach1Manager{
DefaultEnclavePool: epm.DefaultEnclavePool{
Root: cfg.Root,
CacheMetadata: metadata,
}}
bundleCache2 := occlum.BundleCach2Manager{
DefaultEnclavePool: epm.DefaultEnclavePool{
Root: cfg.Root,
CacheMetadata: metadata,
}}
// register the bundle cache pool managers to the manager server // register the bundle cache pool managers to the manager server
server.RegisterCachePoolManager(&bundleCache0) server.RegisterCachePoolManager(bundleCache0)
server.RegisterCachePoolManager(&bundleCache1) server.RegisterCachePoolManager(bundleCache1)
server.RegisterCachePoolManager(&bundleCache2) server.RegisterCachePoolManager(bundleCache2)
// start the grpc server with the server options // start the grpc server with the server options
s := grpc.NewServer(serverOpts...) s := grpc.NewServer(serverOpts...)
......
epm/go.mod
浏览文件 @ b29509be
...@@ -11,7 +11,7 @@ require ( ...@@ -11,7 +11,7 @@ require (
github.com/prometheus/procfs v0.0.5 // indirect github.com/prometheus/procfs v0.0.5 // indirect
github.com/spf13/cobra v1.0.0 github.com/spf13/cobra v1.0.0
github.com/spf13/pflag v1.0.5 github.com/spf13/pflag v1.0.5
github.com/stretchr/testify v1.4.0 // indirect github.com/stretchr/testify v1.4.0
golang.org/x/net v0.0.0-20191004110552-13f9640d40b9 // indirect golang.org/x/net v0.0.0-20191004110552-13f9640d40b9 // indirect
golang.org/x/sys v0.0.0-20200331124033-c3d80250170d // indirect golang.org/x/sys v0.0.0-20200331124033-c3d80250170d // indirect
golang.org/x/text v0.3.2 // indirect golang.org/x/text v0.3.2 // indirect
......
epm/pkg/epm-api/v1alpha1/api.pb.go
浏览文件 @ b29509be
...@@ -8,6 +8,7 @@ package v1alpha1 ...@@ -8,6 +8,7 @@ package v1alpha1
import ( import (
proto "github.com/golang/protobuf/proto" proto "github.com/golang/protobuf/proto"
any "github.com/golang/protobuf/ptypes/any"
protoreflect "google.golang.org/protobuf/reflect/protoreflect" protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl" protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect" reflect "reflect"
...@@ -43,6 +44,8 @@ type Cache struct { ...@@ -43,6 +44,8 @@ type Cache struct {
Size int64 `protobuf:"varint,5,opt,name=size,proto3" json:"size,omitempty"` Size int64 `protobuf:"varint,5,opt,name=size,proto3" json:"size,omitempty"`
// Created represents the creation time of the cache which is the number of seconds elapsed since January 1, 1970 UTC // Created represents the creation time of the cache which is the number of seconds elapsed since January 1, 1970 UTC
Created int64 `protobuf:"varint,6,opt,name=created,proto3" json:"created,omitempty"` Created int64 `protobuf:"varint,6,opt,name=created,proto3" json:"created,omitempty"`
// Options is an optional field which can extend any type of data structure
Options *any.Any `protobuf:"bytes,7,opt,name=options,proto3" json:"options,omitempty"`
} }
func (x *Cache) Reset() { func (x *Cache) Reset() {
...@@ -119,6 +122,13 @@ func (x *Cache) GetCreated() int64 { ...@@ -119,6 +122,13 @@ func (x *Cache) GetCreated() int64 {
return 0 return 0
} }
func (x *Cache) GetOptions() *any.Any {
if x != nil {
return x.Options
}
return nil
}
// GetCacheRequest // GetCacheRequest
type GetCacheRequest struct { type GetCacheRequest struct {
state protoimpl.MessageState state protoimpl.MessageState
...@@ -669,80 +679,85 @@ var File_api_proto protoreflect.FileDescriptor ...@@ -669,80 +679,85 @@ var File_api_proto protoreflect.FileDescriptor
var file_api_proto_rawDesc = []byte{ var file_api_proto_rawDesc = []byte{
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0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
} }
var ( var (
...@@ -770,27 +785,29 @@ var file_api_proto_goTypes = []interface{}{ ...@@ -770,27 +785,29 @@ var file_api_proto_goTypes = []interface{}{
(*DeleteCacheResponse)(nil), // 8: v1alpha1.DeleteCacheResponse (*DeleteCacheResponse)(nil), // 8: v1alpha1.DeleteCacheResponse
(*LoadCacheRequest)(nil), // 9: v1alpha1.LoadCacheRequest (*LoadCacheRequest)(nil), // 9: v1alpha1.LoadCacheRequest
(*LoadCacheResponse)(nil), // 10: v1alpha1.LoadCacheResponse (*LoadCacheResponse)(nil), // 10: v1alpha1.LoadCacheResponse
(*any.Any)(nil), // 11: google.protobuf.Any
} }
var file_api_proto_depIdxs = []int32{ var file_api_proto_depIdxs = []int32{
0, // 0: v1alpha1.Cache.parent:type_name -> v1alpha1.Cache 0, // 0: v1alpha1.Cache.parent:type_name -> v1alpha1.Cache
0, // 1: v1alpha1.GetCacheResponse.cache:type_name -> v1alpha1.Cache 11, // 1: v1alpha1.Cache.options:type_name -> google.protobuf.Any
0, // 2: v1alpha1.SaveCacheRequest.cache:type_name -> v1alpha1.Cache 0, // 2: v1alpha1.GetCacheResponse.cache:type_name -> v1alpha1.Cache
0, // 3: v1alpha1.ListCacheResponse.caches:type_name -> v1alpha1.Cache 0, // 3: v1alpha1.SaveCacheRequest.cache:type_name -> v1alpha1.Cache
1, // 4: v1alpha1.EnclavePoolManager.GetCache:input_type -> v1alpha1.GetCacheRequest 0, // 4: v1alpha1.ListCacheResponse.caches:type_name -> v1alpha1.Cache
3, // 5: v1alpha1.EnclavePoolManager.SaveCache:input_type -> v1alpha1.SaveCacheRequest 1, // 5: v1alpha1.EnclavePoolManager.GetCache:input_type -> v1alpha1.GetCacheRequest
5, // 6: v1alpha1.EnclavePoolManager.ListCache:input_type -> v1alpha1.ListCacheRequest 3, // 6: v1alpha1.EnclavePoolManager.SaveCache:input_type -> v1alpha1.SaveCacheRequest
7, // 7: v1alpha1.EnclavePoolManager.DeleteCache:input_type -> v1alpha1.DeleteCacheRequest 5, // 7: v1alpha1.EnclavePoolManager.ListCache:input_type -> v1alpha1.ListCacheRequest
9, // 8: v1alpha1.EnclavePoolManager.LoadCache:input_type -> v1alpha1.LoadCacheRequest 7, // 8: v1alpha1.EnclavePoolManager.DeleteCache:input_type -> v1alpha1.DeleteCacheRequest
2, // 9: v1alpha1.EnclavePoolManager.GetCache:output_type -> v1alpha1.GetCacheResponse 9, // 9: v1alpha1.EnclavePoolManager.LoadCache:input_type -> v1alpha1.LoadCacheRequest
4, // 10: v1alpha1.EnclavePoolManager.SaveCache:output_type -> v1alpha1.SaveCacheResponse 2, // 10: v1alpha1.EnclavePoolManager.GetCache:output_type -> v1alpha1.GetCacheResponse
6, // 11: v1alpha1.EnclavePoolManager.ListCache:output_type -> v1alpha1.ListCacheResponse 4, // 11: v1alpha1.EnclavePoolManager.SaveCache:output_type -> v1alpha1.SaveCacheResponse
8, // 12: v1alpha1.EnclavePoolManager.DeleteCache:output_type -> v1alpha1.DeleteCacheResponse 6, // 12: v1alpha1.EnclavePoolManager.ListCache:output_type -> v1alpha1.ListCacheResponse
10, // 13: v1alpha1.EnclavePoolManager.LoadCache:output_type -> v1alpha1.LoadCacheResponse 8, // 13: v1alpha1.EnclavePoolManager.DeleteCache:output_type -> v1alpha1.DeleteCacheResponse
9, // [9:14] is the sub-list for method output_type 10, // 14: v1alpha1.EnclavePoolManager.LoadCache:output_type -> v1alpha1.LoadCacheResponse
4, // [4:9] is the sub-list for method input_type 10, // [10:15] is the sub-list for method output_type
4, // [4:4] is the sub-list for extension type_name 5, // [5:10] is the sub-list for method input_type
4, // [4:4] is the sub-list for extension extendee 5, // [5:5] is the sub-list for extension type_name
0, // [0:4] is the sub-list for field type_name 5, // [5:5] is the sub-list for extension extendee
0, // [0:5] is the sub-list for field type_name
} }
func init() { file_api_proto_init() } func init() { file_api_proto_init() }
......
epm/pkg/epm-api/v1alpha1/api.proto
浏览文件 @ b29509be
...@@ -2,6 +2,8 @@ syntax = 'proto3'; ...@@ -2,6 +2,8 @@ syntax = 'proto3';
package v1alpha1; package v1alpha1;
import "google/protobuf/any.proto";
// Cache represents the metadata of a cache managed by enclave pool. // Cache represents the metadata of a cache managed by enclave pool.
message Cache { message Cache {
// Type represents the type of enclave pool // Type represents the type of enclave pool
...@@ -16,6 +18,8 @@ message Cache { ...@@ -16,6 +18,8 @@ message Cache {
int64 size = 5; int64 size = 5;
// Created represents the creation time of the cache which is the number of seconds elapsed since January 1, 1970 UTC // Created represents the creation time of the cache which is the number of seconds elapsed since January 1, 1970 UTC
int64 created = 6; int64 created = 6;
// Options is an optional field which can extend any type of data structure
google.protobuf.Any options = 7;
} }
// EnclavePoolManager represents an enclave pool // EnclavePoolManager represents an enclave pool
......
epm/pkg/epm/bundle-cache-pool/occlum/bundle-cache0.go 0 → 100644
浏览文件 @ b29509be
package occlum
import (
"io/ioutil"
"os"
"path/filepath"
"time"
cache_metadata "github.com/alibaba/inclavare-containers/epm/pkg/metadata"
cache_manager "github.com/alibaba/inclavare-containers/epm/pkg/epm"
"github.com/alibaba/inclavare-containers/epm/pkg/epm-api/v1alpha1"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/constants"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/types"
"github.com/alibaba/inclavare-containers/epm/pkg/utils"
)
type BundleCach0Manager struct {
cache_manager.DefaultEnclavePool
}
func NewBundleCach0Manager(root string, metadata *cache_metadata.Metadata) *BundleCach0Manager {
return &BundleCach0Manager{
DefaultEnclavePool: cache_manager.DefaultEnclavePool{
Root: root,
Type: string(types.BundleCache0PoolType),
CacheMetadata: metadata,
}}
}
func (d *BundleCach0Manager) GetPoolType() string {
return d.Type
}
func (d *BundleCach0Manager) SaveCache(sourcePath string, cache *v1alpha1.Cache) error {
savePath, err := d.BuildCacheSavePath(d.Root, cache)
if err != nil {
return err
}
if err := os.RemoveAll(savePath); err != nil {
return nil
}
if err := os.MkdirAll(savePath, 0755); err != nil {
return err
}
sourceDirs := []string{"build/mount/"}
for _, dir := range sourceDirs {
srcDir := filepath.Join(sourcePath, dir)
destDir := filepath.Join(savePath, dir)
src, err := os.Stat(srcDir)
if err != nil {
return err
}
if err := os.MkdirAll(destDir, src.Mode()); err != nil {
return err
}
if err := utils.CopyDirectory(srcDir, destDir); err != nil {
return err
}
}
if err := ioutil.WriteFile(filepath.Join(savePath, constants.OcclumStatusFileName), []byte(types.ImageBuilt), 0644); err != nil {
return err
}
if err := ioutil.WriteFile(filepath.Join(savePath, constants.OcclumSGXModeFileName), []byte("HW"), 0644); err != nil {
return err
}
size, err := utils.DirSize(savePath)
if err != nil {
return err
}
cache.SavePath = savePath
cache.Size = size
cache.Created = time.Now().Unix()
return d.CacheMetadata.SaveCache(d.GetPoolType(), cache.ID, cache)
}
epm/pkg/epm/bundle-cache-pool/occlum/bundle-cache1.go 0 → 100644
浏览文件 @ b29509be
package occlum
import (
"io/ioutil"
"os"
"path/filepath"
"time"
cache_metadata "github.com/alibaba/inclavare-containers/epm/pkg/metadata"
cache_manager "github.com/alibaba/inclavare-containers/epm/pkg/epm"
"github.com/alibaba/inclavare-containers/epm/pkg/epm-api/v1alpha1"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/constants"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/types"
"github.com/alibaba/inclavare-containers/epm/pkg/utils"
)
type BundleCach1Manager struct {
cache_manager.DefaultEnclavePool
}
func NewBundleCach1Manager(root string, metadata *cache_metadata.Metadata) *BundleCach1Manager {
return &BundleCach1Manager{
DefaultEnclavePool: cache_manager.DefaultEnclavePool{
Root: root,
Type: string(types.BundleCache1PoolType),
CacheMetadata: metadata,
}}
}
func (d *BundleCach1Manager) GetPoolType() string {
return d.Type
}
func (d *BundleCach1Manager) SaveCache(sourcePath string, cache *v1alpha1.Cache) error {
savePath, err := d.BuildCacheSavePath(d.Root, cache)
if err != nil {
return err
}
if err := os.RemoveAll(savePath); err != nil {
return nil
}
if err := os.MkdirAll(savePath, 0755); err != nil {
return err
}
sourceDirs := []string{
"build/bin/",
"build/lib/",
}
sourceFiles := []string{
"build/Enclave.xml",
"build/Occlum.json",
"build/Occlum.json.protected",
}
for _, dir := range sourceDirs {
srcDir := filepath.Join(sourcePath, dir)
destDir := filepath.Join(savePath, dir)
src, err := os.Stat(srcDir)
if err != nil {
return err
}
if err := os.MkdirAll(destDir, src.Mode()); err != nil {
return err
}
if err := utils.CopyDirectory(srcDir, destDir); err != nil {
return err
}
}
for _, file := range sourceFiles {
if err := utils.CopyFile(filepath.Join(sourcePath, file), filepath.Join(savePath, file)); err != nil {
return err
}
}
if err := ioutil.WriteFile(filepath.Join(savePath, constants.OcclumStatusFileName), []byte(types.Built), 0644); err != nil {
return err
}
os.Remove(filepath.Join(savePath, "build/lib/libocclum-libos.signed.so"))
size, err := utils.DirSize(savePath)
if err != nil {
return err
}
cache.SavePath = savePath
cache.Size = size
cache.Created = time.Now().Unix()
return d.CacheMetadata.SaveCache(d.GetPoolType(), cache.ID, cache)
}
epm/pkg/epm/bundle-cache-pool/occlum/bundle-cache2.go 0 → 100644
浏览文件 @ b29509be
package occlum
import (
"io/ioutil"
"os"
"path/filepath"
"time"
cache_metadata "github.com/alibaba/inclavare-containers/epm/pkg/metadata"
cache_manager "github.com/alibaba/inclavare-containers/epm/pkg/epm"
"github.com/alibaba/inclavare-containers/epm/pkg/epm-api/v1alpha1"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/constants"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/types"
"github.com/alibaba/inclavare-containers/epm/pkg/utils"
)
type BundleCach2Manager struct {
cache_manager.DefaultEnclavePool
}
func NewBundleCach2Manager(root string, metadata *cache_metadata.Metadata) *BundleCach2Manager {
return &BundleCach2Manager{
DefaultEnclavePool: cache_manager.DefaultEnclavePool{
Root: root,
Type: string(types.BundleCache2PoolType),
CacheMetadata: metadata,
}}
}
func (d *BundleCach2Manager) GetPoolType() string {
return d.Type
}
func (d *BundleCach2Manager) SaveCache(sourcePath string, cache *v1alpha1.Cache) error {
savePath, err := d.BuildCacheSavePath(d.Root, cache)
if err != nil {
return err
}
if err := os.RemoveAll(savePath); err != nil {
return nil
}
if err := os.MkdirAll(savePath, 0755); err != nil {
return err
}
sourceFiles := []string{
"build/lib/libocclum-libos.signed.so",
}
for _, file := range sourceFiles {
srcFile := filepath.Join(sourcePath, file)
destFile := filepath.Join(savePath, file)
srcDir, err := os.Stat(filepath.Dir(srcFile))
if err != nil {
return err
}
if err := os.MkdirAll(filepath.Dir(destFile), srcDir.Mode()); err != nil {
return err
}
if err := utils.CopyFile(srcFile, destFile); err != nil {
return err
}
}
if err := ioutil.WriteFile(filepath.Join(savePath, constants.OcclumStatusFileName), []byte(types.Built), 0644); err != nil {
return err
}
size, err := utils.DirSize(savePath)
if err != nil {
return err
}
cache.SavePath = savePath
cache.Size = size
cache.Created = time.Now().Unix()
return d.CacheMetadata.SaveCache(d.GetPoolType(), cache.ID, cache)
}
epm/pkg/epm/bundle-cache-pool/occlum/bundle-cache_test.go 0 → 100644
浏览文件 @ b29509be
package occlum
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"github.com/alibaba/inclavare-containers/epm/pkg/epm-api/v1alpha1"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/constants"
"github.com/alibaba/inclavare-containers/epm/pkg/epm/bundle-cache-pool/occlum/types"
cache_metadata "github.com/alibaba/inclavare-containers/epm/pkg/metadata"
"github.com/stretchr/testify/assert"
)
func Test_BundleCach0Manager_SaveCache(t *testing.T) {
metadata, err := cache_metadata.NewMetadataServer("/tmp/test/test.db", time.Second*5)
assert.Nil(t, err)
ID := "001"
m := NewBundleCach0Manager("/tmp/test/epm", metadata)
sourcePath := "/tmp/test/src/rune"
cache := &v1alpha1.Cache{
Type: string(types.BundleCache0PoolType),
Parent: nil,
ID: ID,
}
err = m.SaveCache(sourcePath, cache)
assert.Nil(t, err)
cache, err = m.CacheMetadata.GetCache(string(types.BundleCache0PoolType), ID)
assert.Nil(t, err)
fmt.Printf("cache:= %++v", cache)
b, err := ioutil.ReadFile(filepath.Join(m.Root, cache.Type, cache.ID, "current", constants.OcclumStatusFileName))
assert.Nil(t, err)
assert.Equal(t, "image built", string(b))
b, err = ioutil.ReadFile(filepath.Join(m.Root, cache.Type, cache.ID, "current", constants.OcclumSGXModeFileName))
assert.Nil(t, err)
assert.Equal(t, "HW", string(b))
}
func Test_BundleCach1Manager_SaveCache(t *testing.T) {
metadata, err := cache_metadata.NewMetadataServer("/tmp/test/test.db", time.Second*5)
assert.Nil(t, err)
ID := "x001"
m := NewBundleCach1Manager("/tmp/test/epm", metadata)
sourcePath := "/tmp/test/src/rune"
parent := &v1alpha1.Cache{
Type: string(types.BundleCache0PoolType),
Parent: nil,
ID: "001",
}
cache := &v1alpha1.Cache{
Type: string(types.BundleCache1PoolType),
Parent: parent,
ID: ID,
}
err = m.CacheMetadata.SaveCache(parent.Type, parent.ID, parent)
assert.Nil(t, err)
err = m.SaveCache(sourcePath, cache)
if err != nil {
fmt.Printf("%++v", err)
t.Fatal(err)
}
assert.Nil(t, err)
cache, err = m.CacheMetadata.GetCache(string(types.BundleCache1PoolType), ID)
assert.Nil(t, err)
fmt.Printf("cache:= %++v", cache)
b, err := ioutil.ReadFile(filepath.Join(m.Root, parent.Type, parent.ID, cache.Type, cache.ID, "current", constants.OcclumStatusFileName))
assert.Nil(t, err)
assert.Equal(t, "built", string(b))
}
func Test_BundleCach2Manager_SaveCache(t *testing.T) {
metadata, err := cache_metadata.NewMetadataServer("/tmp/test/test.db", time.Second*5)
assert.Nil(t, err)
ID := "xxx001"
m := NewBundleCach2Manager("/tmp/test/epm", metadata)
sourcePath := "/tmp/test/src/rune"
ancestor := &v1alpha1.Cache{
Type: string(types.BundleCache0PoolType),
Parent: nil,
ID: "001",
}
parent := &v1alpha1.Cache{
Type: string(types.BundleCache1PoolType),
Parent: ancestor,
ID: "x001",
}
cache := &v1alpha1.Cache{
Type: string(types.BundleCache2PoolType),
Parent: parent,
ID: ID,
}
err = m.CacheMetadata.SaveCache(ancestor.Type, ancestor.ID, ancestor)
assert.Nil(t, err)
err = m.CacheMetadata.SaveCache(parent.Type, parent.ID, parent)
assert.Nil(t, err)
err = m.SaveCache(sourcePath, cache)
assert.Nil(t, err)
cache, err = m.CacheMetadata.GetCache(string(types.BundleCache2PoolType), ID)
assert.Nil(t, err)
fmt.Printf("cache:= %++v", cache)
_, err = os.Stat(filepath.Join(m.Root, ancestor.Type, ancestor.ID, parent.Type, parent.ID,
cache.Type, cache.ID, "current", "build/lib/libocclum-libos.signed.so"))
assert.Nil(t, err)
}
func Test_LoadBundleCache0(t *testing.T) {
metadata, err := cache_metadata.NewMetadataServer("/tmp/test/test.db", time.Second*5)
assert.Nil(t, err)
ID := "001"
sourcePath := "/tmp/test/src/rune"
m := NewBundleCach0Manager("/tmp/test/epm", metadata)
cache := &v1alpha1.Cache{
Type: string(types.BundleCache0PoolType),
Parent: nil,
ID: ID,
}
err = m.SaveCache(sourcePath, cache)
assert.Nil(t, err)
cache, err = m.GetCache(ID)
//cache, err = m.CacheMetadata.GetCache(string(types.BundleCache0PoolType), ID)
assert.Nil(t, err)
fmt.Printf("cache:= %++v", cache)
targetPath := "/tmp/test/dst/rune"
os.RemoveAll(targetPath)
os.MkdirAll(targetPath, 0755)
err = m.LoadCache(ID, targetPath)
assert.Nil(t, err)
b, err := ioutil.ReadFile(filepath.Join(targetPath, constants.OcclumStatusFileName))
assert.Nil(t, err)
assert.Equal(t, "image built", string(b))
b, err = ioutil.ReadFile(filepath.Join(targetPath, constants.OcclumSGXModeFileName))
assert.Nil(t, err)
assert.Equal(t, "HW", string(b))
}
func Test_LoadCacheAll(t *testing.T) {
metadata, err := cache_metadata.NewMetadataServer("/tmp/test/test.db", time.Second*5)
assert.Nil(t, err)
sourcePath := "/tmp/test/src/rune"
root := "/tmp/test/epm"
m0ID := "001"
m0 := NewBundleCach0Manager(root, metadata)
m0Cache := &v1alpha1.Cache{
Type: m0.Type,
Parent: nil,
ID: m0ID,
}
err = m0.SaveCache(sourcePath, m0Cache)
assert.Nil(t, err)
m0Cache, err = m0.GetCache(m0ID)
assert.Nil(t, err)
m1ID := "x001"
m1 := NewBundleCach1Manager(root, metadata)
m1Cache := &v1alpha1.Cache{
Type: m1.Type,
Parent: nil,
ID: m1ID,
}
err = m1.SaveCache(sourcePath, m1Cache)
assert.Nil(t, err)
m1Cache, err = m1.GetCache(m1ID)
assert.Nil(t, err)
m2ID := "xxx001"
m2 := NewBundleCach2Manager(root, metadata)
m2Cache := &v1alpha1.Cache{
Type: m2.Type,
Parent: nil,
ID: m2ID,
}
err = m2.SaveCache(sourcePath, m2Cache)
assert.Nil(t, err)
m2Cache, err = m2.GetCache(m2ID)
assert.Nil(t, err)
targetPath := "/tmp/test/dst/rune"
os.RemoveAll(targetPath)
os.MkdirAll(targetPath, 0755)
err = m0.LoadCache(m0ID, targetPath)
assert.Nil(t, err)
err = m1.LoadCache(m1ID, targetPath)
assert.Nil(t, err)
err = m2.LoadCache(m2ID, targetPath)
assert.Nil(t, err)
b, err := ioutil.ReadFile(filepath.Join(targetPath, constants.OcclumStatusFileName))
assert.Nil(t, err)
assert.Equal(t, "built", string(b))
b, err = ioutil.ReadFile(filepath.Join(targetPath, constants.OcclumSGXModeFileName))
assert.Nil(t, err)
assert.Equal(t, "HW", string(b))
}
epm/pkg/epm/bundle-cache-pool/occlum/cach-manager.go 已删除 100644 → 0
浏览文件 @ 8d46bc6a
package occlum
import (
cache_manager "github.com/alibaba/inclavare-containers/epm/pkg/epm"
)
type BundleCach0Manager struct {
cache_manager.DefaultEnclavePool
}
func (d *BundleCach0Manager) GetPoolType() string {
return "bundle-cache.occlum.cache0"
}
type BundleCach1Manager struct {
cache_manager.DefaultEnclavePool
}
func (d *BundleCach1Manager) GetPoolType() string {
return "bundle-cache.occlum.cache1"
}
type BundleCach2Manager struct {
cache_manager.DefaultEnclavePool
}
func (d *BundleCach2Manager) GetPoolType() string {
return "bundle-cache.occlum.cache2"
}
epm/pkg/epm/bundle-cache-pool/occlum/constants/constants.go 0 → 100644
浏览文件 @ b29509be
package constants
const (
OcclumStatusFileName = ".__occlum_status"
OcclumSGXModeFileName = ".sgx_mode"
)
epm/pkg/epm/bundle-cache-pool/occlum/types/types.go 0 → 100644
浏览文件 @ b29509be
package types
type OcclumStatus string
const (
ImageBuilt OcclumStatus = "image built"
LibOSBuilt OcclumStatus = "libos built"
Init OcclumStatus = "init"
Built OcclumStatus = "built"
Running OcclumStatus = "running"
)
type BundleCachePoolType string
const (
BundleCache0PoolType BundleCachePoolType = "bundle-cache.occlum.cache0"
BundleCache1PoolType BundleCachePoolType = "bundle-cache.occlum.cache1"
BundleCache2PoolType BundleCachePoolType = "bundle-cache.occlum.cache2"
)
epm/pkg/epm/interface.go
浏览文件 @ b29509be
...@@ -3,7 +3,6 @@ package epm ...@@ -3,7 +3,6 @@ package epm
import ( import (
"fmt" "fmt"
"os" "os"
"strconv"
"strings" "strings"
"time" "time"
...@@ -32,11 +31,12 @@ type EnclavePool interface { ...@@ -32,11 +31,12 @@ type EnclavePool interface {
// DefaultEnclavePool is the default implementation of EnclavePool // DefaultEnclavePool is the default implementation of EnclavePool
type DefaultEnclavePool struct { type DefaultEnclavePool struct {
Root string Root string
Type string
CacheMetadata *cache_metadata.Metadata CacheMetadata *cache_metadata.Metadata
} }
func (d *DefaultEnclavePool) GetCache(ID string) (*v1alpha1.Cache, error) { func (d *DefaultEnclavePool) GetCache(ID string) (*v1alpha1.Cache, error) {
return d.CacheMetadata.GetCache(d.GetPoolType(), ID) return d.CacheMetadata.GetCache(d.Type, ID)
} }
func (d *DefaultEnclavePool) SaveCache(sourcePath string, cache *v1alpha1.Cache) error { func (d *DefaultEnclavePool) SaveCache(sourcePath string, cache *v1alpha1.Cache) error {
...@@ -50,16 +50,27 @@ func (d *DefaultEnclavePool) SaveCache(sourcePath string, cache *v1alpha1.Cache) ...@@ -50,16 +50,27 @@ func (d *DefaultEnclavePool) SaveCache(sourcePath string, cache *v1alpha1.Cache)
if err := os.MkdirAll(savePath, 755); err != nil { if err := os.MkdirAll(savePath, 755); err != nil {
return err return err
} }
if _, err := utils.ExecCmd("/bin/cp", []string{"-fr", sourcePath, savePath}); err != nil { f, err := os.Stat(sourcePath)
return err
}
sizeStr, err := utils.ExecCmd("du", []string{"-sb", savePath, "|", "awk", "'{print $1}'"})
if err != nil { if err != nil {
return err return err
} }
size, err := strconv.ParseInt(sizeStr, 10, 64) var size int64 = 0
if err != nil { if f.IsDir() {
return err if err := utils.CopyDirectory(sourcePath, savePath); err != nil {
return err
}
size, err = utils.DirSize(savePath)
if err != nil {
return err
}
} else {
if err := utils.CopyFile(sourcePath, savePath); err != nil {
return err
}
size, err = utils.FileSize(savePath)
if err != nil {
return err
}
} }
cache.SavePath = savePath cache.SavePath = savePath
cache.Size = size cache.Size = size
...@@ -87,17 +98,27 @@ func (d *DefaultEnclavePool) LoadCache(ID, targetPath string) error { ...@@ -87,17 +98,27 @@ func (d *DefaultEnclavePool) LoadCache(ID, targetPath string) error {
if err != nil { if err != nil {
return err return err
} }
if _, err := os.Stat(targetPath); err != nil { if cache == nil {
return fmt.Errorf("cache %s is not exist", ID)
}
f, err := os.Stat(targetPath)
if err != nil {
return fmt.Errorf("target path is not exist. error: %++v", err) return fmt.Errorf("target path is not exist. error: %++v", err)
} }
if _, err := utils.ExecCmd("/bin/cp", []string{"-fr", fmt.Sprintf("%s/", cache.SavePath), targetPath}); err != nil { if f.IsDir() {
return err if err := utils.CopyDirectory(cache.SavePath, targetPath); err != nil {
return err
}
} else {
if err := utils.CopyFile(cache.SavePath, targetPath); err != nil {
return err
}
} }
return nil return nil
} }
func (d *DefaultEnclavePool) GetPoolType() string { func (d *DefaultEnclavePool) GetPoolType() string {
return "default" return d.Type
} }
func (d *DefaultEnclavePool) BuildCacheSavePath(rootDir string, cache *v1alpha1.Cache) (string, error) { func (d *DefaultEnclavePool) BuildCacheSavePath(rootDir string, cache *v1alpha1.Cache) (string, error) {
...@@ -105,6 +126,8 @@ func (d *DefaultEnclavePool) BuildCacheSavePath(rootDir string, cache *v1alpha1. ...@@ -105,6 +126,8 @@ func (d *DefaultEnclavePool) BuildCacheSavePath(rootDir string, cache *v1alpha1.
if err != nil { if err != nil {
return "", err return "", err
} }
caches = append([]*v1alpha1.Cache{cache}, caches...)
paths := []string{rootDir} paths := []string{rootDir}
for index := len(caches) - 1; index >= 0; index-- { for index := len(caches) - 1; index >= 0; index-- {
cache := caches[index] cache := caches[index]
......
epm/pkg/metadata/metadata.go
浏览文件 @ b29509be
...@@ -54,6 +54,7 @@ func (m *Metadata) GetCache(bucket, key string) (*v1alpha1.Cache, error) { ...@@ -54,6 +54,7 @@ func (m *Metadata) GetCache(bucket, key string) (*v1alpha1.Cache, error) {
err := m.db.View(func(tx *bolt.Tx) error { err := m.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(bucket)) b := tx.Bucket([]byte(bucket))
if b == nil { if b == nil {
cache = nil
return nil return nil
} }
value := b.Get([]byte(key)) value := b.Get([]byte(key))
......
epm/pkg/metadata/metadata_test.go 0 → 100644
浏览文件 @ b29509be
package metadata
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func Test_GetCache(t *testing.T) {
db := "/tmp/test.db"
m, err := NewMetadataServer(db, time.Second*5)
assert.Equal(t, err, nil)
defer m.Close()
c, err := m.GetCache("b1", "k1")
assert.Equal(t, err, nil)
assert.True(t, c == nil)
}
epm/pkg/utils/copy.go 0 → 100644
浏览文件 @ b29509be
package utils
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"syscall"
)
type CopyOptions struct {
overwrite bool
followSymbolic bool
}
type CopyOpt func(*CopyOptions)
func defaultCopyOptions() *CopyOptions {
return &CopyOptions{
overwrite: true,
followSymbolic: false,
}
}
func NotOverwrite(option *CopyOptions) {
option.overwrite = false
}
func FollowSymbolic(option *CopyOptions) {
option.followSymbolic = true
}
func CopyDirectory(scrDir, dest string, opts ...CopyOpt) error {
entries, err := ioutil.ReadDir(scrDir)
if err != nil {
return err
}
options := defaultCopyOptions()
for _, opt := range opts {
opt(options)
}
for _, entry := range entries {
sourcePath := filepath.Join(scrDir, entry.Name())
destPath := filepath.Join(dest, entry.Name())
var fileInfo os.FileInfo
var err error
if options.followSymbolic {
fileInfo, err = os.Stat(sourcePath)
} else {
fileInfo, err = os.Lstat(sourcePath)
}
if err != nil {
return err
}
stat, ok := fileInfo.Sys().(*syscall.Stat_t)
if !ok {
return fmt.Errorf("failed to get raw syscall.Stat_t data for '%s'", sourcePath)
}
switch fileInfo.Mode() & os.ModeType {
case os.ModeDir:
if err := CreateIfNotExists(destPath, 0755); err != nil {
return err
}
if err := CopyDirectory(sourcePath, destPath, opts...); err != nil {
return err
}
case os.ModeSymlink:
if err := copySymLink(sourcePath, destPath, options.overwrite); err != nil {
return err
}
default:
if err := copyFile(sourcePath, destPath, options.overwrite); err != nil {
return err
}
}
if err := os.Lchown(destPath, int(stat.Uid), int(stat.Gid)); err != nil {
return err
}
isSymlink := entry.Mode()&os.ModeSymlink != 0
if !isSymlink {
if err := os.Chmod(destPath, entry.Mode()); err != nil {
return err
}
}
}
return nil
}
func CopyFile(srcFile, dstFile string, opts ...CopyOpt) error {
fileInfo, err := os.Lstat(srcFile)
if err != nil {
return err
}
options := defaultCopyOptions()
for _, opt := range opts {
opt(options)
}
switch fileInfo.Mode() & os.ModeType {
case os.ModeDir:
return fmt.Errorf("%s is a direcotry, not a file", srcFile)
case os.ModeSymlink:
if err := copySymLink(srcFile, dstFile, options.overwrite); err != nil {
return err
}
default:
if err := copyFile(srcFile, dstFile, options.overwrite); err != nil {
return err
}
}
return nil
}
func Exists(filePath string) bool {
if _, err := os.Stat(filePath); os.IsNotExist(err) {
return false
}
return true
}
func CreateIfNotExists(dir string, perm os.FileMode) error {
if Exists(dir) {
return nil
}
if err := os.MkdirAll(dir, perm); err != nil {
return fmt.Errorf("failed to create directory: '%s', error: '%s'", dir, err.Error())
}
return nil
}
func copySymLink(source, dest string, overwrite bool) error {
if overwrite {
os.Remove(dest)
} else if _, err := os.Lstat(dest); err == nil {
return nil
}
link, err := os.Readlink(source)
if err != nil {
return err
}
return os.Symlink(link, dest)
}
func copyFile(srcFile, dstFile string, overwrite bool) error {
if overwrite {
os.Remove(dstFile)
} else if _, err := os.Lstat(dstFile); err == nil {
return nil
}
out, err := os.Create(dstFile)
if err != nil {
return err
}
defer out.Close()
in, err := os.Open(srcFile)
defer in.Close()
if err != nil {
return err
}
_, err = io.Copy(out, in)
if err != nil {
return err
}
return nil
}
epm/pkg/utils/copy_test.go 0 → 100644
浏览文件 @ b29509be
package utils
import (
"testing"
)
func Test_CopyDirectory(t *testing.T) {
t.Skip()
err := CopyDirectory("/tmp/test/src", "/tmp/test/dst/fff")
if err != nil {
t.Fatal(err)
}
}
func Test_CopyFile(t *testing.T) {
err := copyFile("/tmp/test/src/a/a.txt", "/tmp/test/dst/a/a.txt")
if err != nil {
t.Fatal(err)
}
}
func Test_CopySymLink(t *testing.T) {
err := CopyDirectory("/tmp/test/src/rune/build/bin", "/tmp/test/dst/bin")
if err != nil {
t.Fatal(err)
}
}
epm/pkg/utils/utils.go
浏览文件 @ b29509be
package utils package utils
import ( import (
"fmt" "io/ioutil"
"os/exec" "os"
"path/filepath"
) )
func ExecCmd(cmd string, args []string) (string, error) { const blockSize = 1024 * 4
/*func ExecCmd(cmd string, args []string) (string, error) {
c := exec.Command(cmd, args...) c := exec.Command(cmd, args...)
b, err := c.Output() b, err := c.Output()
if err != nil { if err != nil {
return "", fmt.Errorf("output: %s, error:%++v", string(b), err) return "", fmt.Errorf("output: %s, error:%++v", string(b), err)
} }
return string(b), nil return string(b), nil
}*/
func DirSize(dir string) (int64, error) {
var total int64 = 0
f, err := os.Lstat(dir)
if err != nil {
return 0, err
}
if f.IsDir() {
files, err := ioutil.ReadDir(dir)
if err != nil {
return 0, err
}
for _, file := range files {
size, err := DirSize(filepath.Join(dir, file.Name()))
if err != nil {
return 0, err
}
total += size
}
} else {
size, err := FileSize(dir)
if err != nil {
return 0, err
}
total += size
}
return total, nil
}
func FileSize(file string) (int64, error) {
f, err := os.Lstat(file)
if err != nil {
return 0, err
}
size := f.Size()
blocks := size / blockSize
remainder := size % blockSize
if remainder > 0 {
size = (blocks + 1) * blockSize
}
return size, nil
} }
epm/pkg/utils/utils_test.go 0 → 100644
浏览文件 @ b29509be
package utils
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func Test_DirSize(t *testing.T) {
size, err := DirSize("/tmp/")
assert.Nil(t, err)
fmt.Println(size)
}
epm/vendor/github.com/davecgh/go-spew/LICENSE 0 → 100644
浏览文件 @ b29509be
ISC License
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and/or 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.
epm/vendor/github.com/davecgh/go-spew/spew/bypass.go 0 → 100644
浏览文件 @ b29509be
// Copyright (c) 2015-2016 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, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// Go versions prior to 1.4 are disabled because they use a different layout
// for interfaces which make the implementation of unsafeReflectValue more complex.
// +build !js,!appengine,!safe,!disableunsafe,go1.4
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))
)
type flag uintptr
var (
// flagRO indicates whether the value field of a reflect.Value
// is read-only.
flagRO flag
// flagAddr indicates whether the address of the reflect.Value's
// value may be taken.
flagAddr flag
)
// flagKindMask holds the bits that make up the kind
// part of the flags field. In all the supported versions,
// it is in the lower 5 bits.
const flagKindMask = flag(0x1f)
// Different versions of Go have used different
// bit layouts for the flags type. This table
// records the known combinations.
var okFlags = []struct {
ro, addr flag
}{{
// From Go 1.4 to 1.5
ro: 1 << 5,
addr: 1 << 7,
}, {
// Up to Go tip.
ro: 1<<5 | 1<<6,
addr: 1 << 8,
}}
var flagValOffset = func() uintptr {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
return field.Offset
}()
// flagField returns a pointer to the flag field of a reflect.Value.
func flagField(v *reflect.Value) *flag {
return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
}
// 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) reflect.Value {
if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
return v
}
flagFieldPtr := flagField(&v)
*flagFieldPtr &^= flagRO
*flagFieldPtr |= flagAddr
return v
}
// Sanity checks against future reflect package changes
// to the type or semantics of the Value.flag field.
func init() {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
panic("reflect.Value flag field has changed kind")
}
type t0 int
var t struct {
A t0
// t0 will have flagEmbedRO set.
t0
// a will have flagStickyRO set
a t0
}
vA := reflect.ValueOf(t).FieldByName("A")
va := reflect.ValueOf(t).FieldByName("a")
vt0 := reflect.ValueOf(t).FieldByName("t0")
// Infer flagRO from the difference between the flags
// for the (otherwise identical) fields in t.
flagPublic := *flagField(&vA)
flagWithRO := *flagField(&va) | *flagField(&vt0)
flagRO = flagPublic ^ flagWithRO
// Infer flagAddr from the difference between a value
// taken from a pointer and not.
vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
flagNoPtr := *flagField(&vA)
flagPtr := *flagField(&vPtrA)
flagAddr = flagNoPtr ^ flagPtr
// Check that the inferred flags tally with one of the known versions.
for _, f := range okFlags {
if flagRO == f.ro && flagAddr == f.addr {
return
}
}
panic("reflect.Value read-only flag has changed semantics")
}
epm/vendor/github.com/davecgh/go-spew/spew/bypasssafe.go 0 → 100644
浏览文件 @ b29509be
// Copyright (c) 2015-2016 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 running on Google App Engine, compiled by GopherJS, or
// "-tags safe" is added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build js appengine safe disableunsafe !go1.4
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
}
epm/vendor/github.com/davecgh/go-spew/spew/common.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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 hexadecimal 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))
}
epm/vendor/github.com/davecgh/go-spew/spew/config.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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 "safe" build tag specified.
DisablePointerMethods bool
// DisablePointerAddresses specifies whether to disable the printing of
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableCapacities 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: " "}
}
epm/vendor/github.com/davecgh/go-spew/spew/doc.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of
capacities for arrays, slices, maps and channels. This is useful when
diffing data structures in tests.
* 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
epm/vendor/github.com/davecgh/go-spew/spew/dump.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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 !d.cs.DisablePointerAddresses && 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:
d.w.Write(nilAngleBytes)
case cycleFound:
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 || !d.cs.DisableCapacities && valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && 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...)
}
epm/vendor/github.com/davecgh/go-spew/spew/format.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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:
f.fs.Write(nilAngleBytes)
case cycleFound:
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)
}
epm/vendor/github.com/davecgh/go-spew/spew/spew.go 0 → 100644
浏览文件 @ b29509be
/*
* Copyright (c) 2013-2016 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
}
epm/vendor/github.com/pmezard/go-difflib/LICENSE 0 → 100644
浏览文件 @ b29509be
Copyright (c) 2013, Patrick Mezard
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.
The names of its contributors may not 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.
epm/vendor/github.com/stretchr/testify/LICENSE 0 → 100644
浏览文件 @ b29509be
MIT License
Copyright (c) 2012-2018 Mat Ryer and Tyler Bunnell
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
epm/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl 0 → 100644
浏览文件 @ b29509be
{{.CommentFormat}}
func {{.DocInfo.Name}}f(t TestingT, {{.ParamsFormat}}) bool {
if h, ok := t.(tHelper); ok { h.Helper() }
return {{.DocInfo.Name}}(t, {{.ForwardedParamsFormat}})
}
epm/vendor/github.com/stretchr/testify/assert/assertion_forward.go.tmpl 0 → 100644
浏览文件 @ b29509be
{{.CommentWithoutT "a"}}
func (a *Assertions) {{.DocInfo.Name}}({{.Params}}) bool {
if h, ok := a.t.(tHelper); ok { h.Helper() }
return {{.DocInfo.Name}}(a.t, {{.ForwardedParams}})
}
epm/vendor/github.com/stretchr/testify/assert/doc.go 0 → 100644
浏览文件 @ b29509be
// Package assert provides a set of comprehensive testing tools for use with the normal Go testing system.
//
// Example Usage
//
// The following is a complete example using assert in a standard test function:
// import (
// "testing"
// "github.com/stretchr/testify/assert"
// )
//
// func TestSomething(t *testing.T) {
//
// var a string = "Hello"
// var b string = "Hello"
//
// assert.Equal(t, a, b, "The two words should be the same.")
//
// }
//
// if you assert many times, use the format below:
//
// import (
// "testing"
// "github.com/stretchr/testify/assert"
// )
//
// func TestSomething(t *testing.T) {
// assert := assert.New(t)
//
// var a string = "Hello"
// var b string = "Hello"
//
// assert.Equal(a, b, "The two words should be the same.")
// }
//
// Assertions
//
// Assertions allow you to easily write test code, and are global funcs in the `assert` package.
// All assertion functions take, as the first argument, the `*testing.T` object provided by the
// testing framework. This allows the assertion funcs to write the failings and other details to
// the correct place.
//
// Every assertion function also takes an optional string message as the final argument,
// allowing custom error messages to be appended to the message the assertion method outputs.
package assert
epm/vendor/github.com/stretchr/testify/assert/errors.go 0 → 100644
浏览文件 @ b29509be
package assert
import (
"errors"
)
// AnError is an error instance useful for testing. If the code does not care
// about error specifics, and only needs to return the error for example, this
// error should be used to make the test code more readable.
var AnError = errors.New("assert.AnError general error for testing")
epm/vendor/github.com/stretchr/testify/assert/forward_assertions.go 0 → 100644
浏览文件 @ b29509be
package assert
// Assertions provides assertion methods around the
// TestingT interface.
type Assertions struct {
t TestingT
}
// New makes a new Assertions object for the specified TestingT.
func New(t TestingT) *Assertions {
return &Assertions{
t: t,
}
}
//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl -include-format-funcs
epm/vendor/github.com/stretchr/testify/assert/http_assertions.go 0 → 100644
浏览文件 @ b29509be
package assert
import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"strings"
)
// httpCode is a helper that returns HTTP code of the response. It returns -1 and
// an error if building a new request fails.
func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
w := httptest.NewRecorder()
req, err := http.NewRequest(method, url, nil)
if err != nil {
return -1, err
}
req.URL.RawQuery = values.Encode()
handler(w, req)
return w.Code, nil
}
// HTTPSuccess asserts that a specified handler returns a success status code.
//
// assert.HTTPSuccess(t, myHandler, "POST", "http://www.google.com", nil)
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
if !isSuccessCode {
Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isSuccessCode
}
// HTTPRedirect asserts that a specified handler returns a redirect status code.
//
// assert.HTTPRedirect(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
if !isRedirectCode {
Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isRedirectCode
}
// HTTPError asserts that a specified handler returns an error status code.
//
// assert.HTTPError(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
code, err := httpCode(handler, method, url, values)
if err != nil {
Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
return false
}
isErrorCode := code >= http.StatusBadRequest
if !isErrorCode {
Fail(t, fmt.Sprintf("Expected HTTP error status code for %q but received %d", url+"?"+values.Encode(), code))
}
return isErrorCode
}
// HTTPBody is a helper that returns HTTP body of the response. It returns
// empty string if building a new request fails.
func HTTPBody(handler http.HandlerFunc, method, url string, values url.Values) string {
w := httptest.NewRecorder()
req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
if err != nil {
return ""
}
handler(w, req)
return w.Body.String()
}
// HTTPBodyContains asserts that a specified handler returns a
// body that contains a string.
//
// assert.HTTPBodyContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
body := HTTPBody(handler, method, url, values)
contains := strings.Contains(body, fmt.Sprint(str))
if !contains {
Fail(t, fmt.Sprintf("Expected response body for \"%s\" to contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
}
return contains
}
// HTTPBodyNotContains asserts that a specified handler returns a
// body that does not contain a string.
//
// assert.HTTPBodyNotContains(t, myHandler, "GET", "www.google.com", nil, "I'm Feeling Lucky")
//
// Returns whether the assertion was successful (true) or not (false).
func HTTPBodyNotContains(t TestingT, handler http.HandlerFunc, method, url string, values url.Values, str interface{}, msgAndArgs ...interface{}) bool {
if h, ok := t.(tHelper); ok {
h.Helper()
}
body := HTTPBody(handler, method, url, values)
contains := strings.Contains(body, fmt.Sprint(str))
if contains {
Fail(t, fmt.Sprintf("Expected response body for \"%s\" to NOT contain \"%s\" but found \"%s\"", url+"?"+values.Encode(), str, body))
}
return !contains
}
epm/vendor/gopkg.in/yaml.v2/.travis.yml 0 → 100644
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language: go
go:
- "1.4.x"
- "1.5.x"
- "1.6.x"
- "1.7.x"
- "1.8.x"
- "1.9.x"
- "1.10.x"
- "1.11.x"
- "1.12.x"
- "1.13.x"
- "tip"
go_import_path: gopkg.in/yaml.v2
epm/vendor/gopkg.in/yaml.v2/LICENSE 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/LICENSE.libyaml 0 → 100644
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The following files were ported to Go from C files of libyaml, and thus
are still covered by their original copyright and license:
apic.go
emitterc.go
parserc.go
readerc.go
scannerc.go
writerc.go
yamlh.go
yamlprivateh.go
Copyright (c) 2006 Kirill Simonov
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
epm/vendor/gopkg.in/yaml.v2/NOTICE 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/README.md 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/apic.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/decode.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/emitterc.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/encode.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/go.mod 0 → 100644
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module "gopkg.in/yaml.v2"
require (
"gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405
)
epm/vendor/gopkg.in/yaml.v2/parserc.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/readerc.go 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/resolve.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/scannerc.go 0 → 100644
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epm/vendor/gopkg.in/yaml.v2/sorter.go 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/writerc.go 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/yaml.go 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/yamlh.go 0 → 100644
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此差异已折叠。
epm/vendor/gopkg.in/yaml.v2/yamlprivateh.go 0 → 100644
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此差异已折叠。
epm/vendor/modules.txt
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此差异已折叠。
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