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pkg/archive: keep walkRoot clean if source is /

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Previously, getWalkRoot("/", "foo") would return "//foo"
Now it returns "/foo"

Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 7410f1a859)
Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2019-06-12 23:01:04 +00:00
parent a0063c534a
commit 186afe3ce3
1 changed files with 2 additions and 1 deletions
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3
pkg/archive/archive_unix.go
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@ -7,6 +7,7 @@ import (
"errors"
"os"
"path/filepath"
"strings"
"syscall"
"github.com/docker/docker/pkg/idtools"
@ -26,7 +27,7 @@ func fixVolumePathPrefix(srcPath string) string {
// can't use filepath.Join(srcPath,include) because this will clean away
// a trailing "." or "/" which may be important.
func getWalkRoot(srcPath string, include string) string {
return srcPath + string(filepath.Separator) + include
return strings.TrimSuffix(srcPath, string(filepath.Separator)) + string(filepath.Separator) + include
}
// CanonicalTarNameForPath returns platform-specific filepath