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moby--moby/builder/dockerfile/dispatchers_unix.go
Daniel Nephin c7fad9b750 Cleanup in dispatcher.env
Remove commented code blocks
Remove some duplication in comparing and restructuring env

Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-04-11 14:44:28 -04:00

34 lines
881 B
Go

// +build !windows
package dockerfile
import (
"errors"
"fmt"
"os"
"path/filepath"
)
// normaliseWorkdir normalises a user requested working directory in a
// platform semantically consistent way.
func normaliseWorkdir(current string, requested string) (string, error) {
if requested == "" {
return "", errors.New("cannot normalise nothing")
}
current = filepath.FromSlash(current)
requested = filepath.FromSlash(requested)
if !filepath.IsAbs(requested) {
return filepath.Join(string(os.PathSeparator), current, requested), nil
}
return requested, nil
}
func errNotJSON(command, _ string) error {
return fmt.Errorf("%s requires the arguments to be in JSON form", command)
}
// equalEnvKeys compare two strings and returns true if they are equal. On
// Windows this comparison is case insensitive.
func equalEnvKeys(from, to string) bool {
return from == to
}