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Refactor CLI docker save

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Signed-off-by: Hu Keping <hukeping@huawei.com>
This commit is contained in:
Hu Keping 2015-09-10 20:28:38 +08:00
parent 6efe45990d
commit 22be1e443f
2 changed files with 13 additions and 18 deletions
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2
api/client/cli.go
View file

@ -52,7 +52,7 @@ type DockerCli struct {
outFd uintptr
// isTerminalIn indicates whether the client's STDIN is a TTY
isTerminalIn bool
// isTerminalOut dindicates whether the client's STDOUT is a TTY
// isTerminalOut indicates whether the client's STDOUT is a TTY
isTerminalOut bool
// transport holds the client transport instance.
transport *http.Transport

29
api/client/save.go
View file

@ -25,13 +25,14 @@ func (cli *DockerCli) CmdSave(args ...string) error {
output = cli.out
err error
)
if *outfile == "" && cli.isTerminalOut {
return errors.New("Cowardly refusing to save to a terminal. Use the -o flag or redirect.")
}
if *outfile != "" {
output, err = os.Create(*outfile)
if err != nil {
if output, err = os.Create(*outfile); err != nil {
return err
}
} else if cli.isTerminalOut {
return errors.New("Cowardly refusing to save to a terminal. Use the -o flag or redirect.")
}
sopts := &streamOpts{
@ -39,19 +40,13 @@ func (cli *DockerCli) CmdSave(args ...string) error {
out: output,
}
if len(cmd.Args()) == 1 {
image := cmd.Arg(0)
if _, err := cli.stream("GET", "/images/"+image+"/get", sopts); err != nil {
return err
}
} else {
v := url.Values{}
for _, arg := range cmd.Args() {
v.Add("names", arg)
}
if _, err := cli.stream("GET", "/images/get?"+v.Encode(), sopts); err != nil {
return err
}
v := url.Values{}
for _, arg := range cmd.Args() {
v.Add("names", arg)
}
if _, err := cli.stream("GET", "/images/get?"+v.Encode(), sopts); err != nil {
return err
}
return nil
}