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体验新版 GitCode,发现更多精彩内容 >>
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fad745f6
编写于
4月 22, 2020
作者:
M
Medya Gh
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差异文件
adding runner for oci package
上级
8327b230
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
112 addition
and
0 deletion
+112
-0
pkg/drivers/kic/oci/runner.go
pkg/drivers/kic/oci/runner.go
+112
-0
未找到文件。
pkg/drivers/kic/oci/runner.go
0 → 100644
浏览文件 @
fad745f6
/*
Copyright 2019 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package
oci
import
(
"bytes"
"fmt"
"io"
"os/exec"
"strings"
"time"
"github.com/golang/glog"
)
//runner runs commands using the os/exec package.
type
runner
struct
{
}
// RunResult holds the results of a Runner
type
RunResult
struct
{
Stdout
bytes
.
Buffer
Stderr
bytes
.
Buffer
ExitCode
int
Args
[]
string
// the args that was passed to Runner
}
// Command returns a human readable command string that does not induce eye fatigue
func
(
rr
RunResult
)
Command
()
string
{
var
sb
strings
.
Builder
sb
.
WriteString
(
rr
.
Args
[
0
])
for
_
,
a
:=
range
rr
.
Args
[
1
:
]
{
if
strings
.
Contains
(
a
,
" "
)
{
sb
.
WriteString
(
fmt
.
Sprintf
(
` "%s"`
,
a
))
continue
}
sb
.
WriteString
(
fmt
.
Sprintf
(
" %s"
,
a
))
}
return
sb
.
String
()
}
// Output returns human-readable output for an execution result
func
(
rr
RunResult
)
Output
()
string
{
var
sb
strings
.
Builder
if
rr
.
Stdout
.
Len
()
>
0
{
sb
.
WriteString
(
fmt
.
Sprintf
(
"-- stdout --
\n
%s
\n
-- /stdout --"
,
rr
.
Stdout
.
Bytes
()))
}
if
rr
.
Stderr
.
Len
()
>
0
{
sb
.
WriteString
(
fmt
.
Sprintf
(
"
\n
** stderr **
\n
%s
\n
** /stderr **"
,
rr
.
Stderr
.
Bytes
()))
}
return
sb
.
String
()
}
// newRunner returns an oci runner
func
newRunner
()
*
runner
{
return
&
runner
{}
}
// RunCmd implements the Command Runner interface to run a exec.Cmd object
func
(
*
runner
)
RunCmd
(
cmd
*
exec
.
Cmd
)
(
*
RunResult
,
error
)
{
rr
:=
&
RunResult
{
Args
:
cmd
.
Args
}
glog
.
Infof
(
"Run: %v"
,
rr
.
Command
())
var
outb
,
errb
io
.
Writer
if
cmd
.
Stdout
==
nil
{
var
so
bytes
.
Buffer
outb
=
io
.
MultiWriter
(
&
so
,
&
rr
.
Stdout
)
}
else
{
outb
=
io
.
MultiWriter
(
cmd
.
Stdout
,
&
rr
.
Stdout
)
}
if
cmd
.
Stderr
==
nil
{
var
se
bytes
.
Buffer
errb
=
io
.
MultiWriter
(
&
se
,
&
rr
.
Stderr
)
}
else
{
errb
=
io
.
MultiWriter
(
cmd
.
Stderr
,
&
rr
.
Stderr
)
}
cmd
.
Stdout
=
outb
cmd
.
Stderr
=
errb
start
:=
time
.
Now
()
err
:=
cmd
.
Run
()
elapsed
:=
time
.
Since
(
start
)
if
exitError
,
ok
:=
err
.
(
*
exec
.
ExitError
);
ok
{
rr
.
ExitCode
=
exitError
.
ExitCode
()
}
// Decrease log spam
if
elapsed
>
(
1
*
time
.
Second
)
{
glog
.
Infof
(
"Completed: %s: (%s)"
,
rr
.
Command
(),
elapsed
)
}
if
err
==
nil
{
return
rr
,
nil
}
return
rr
,
fmt
.
Errorf
(
"%s: %v
\n
stdout:
\n
%s
\n
stderr:
\n
%s"
,
rr
.
Command
(),
err
,
rr
.
Stdout
.
String
(),
rr
.
Stderr
.
String
())
}
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