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use ValidateContextDirectory to validate context

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This commit makes the Docker cli client use ValidateContextDirectory
before attempting to create a tarball out of the context. This ensures
we avoid errors such as "unexpected EOF" during the upload of the
context.

This check is done before uploading any data and can save time and
bandwidth for remote Docker daemons.

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
This commit is contained in:
unclejack 2014-05-10 11:03:53 +03:00
parent 1dedcd0d37
commit 33d5b38d62
1 changed files with 3 additions and 0 deletions
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3
api/client/commands.go
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@ -161,6 +161,9 @@ func (cli *DockerCli) CmdBuild(args ...string) error {
if _, err = os.Stat(filename); os.IsNotExist(err) {
return fmt.Errorf("no Dockerfile found in %s", cmd.Arg(0))
}
if err = utils.ValidateContextDirectory(root); err != nil {
return fmt.Errorf("Error checking context is accessible: '%s'. Please check permissions and try again.", err)
}
context, err = archive.Tar(root, archive.Uncompressed)
}
var body io.Reader