1870d5f4aa
WalkDir is more performant as it doesn't perform an os.Lstat on every visited file or directory. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
//go:build !windows
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// +build !windows
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package dockerfile // import "github.com/docker/docker/builder/dockerfile"
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import (
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/docker/docker/pkg/idtools"
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)
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func fixPermissions(source, destination string, identity idtools.Identity, overrideSkip bool) error {
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var (
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skipChownRoot bool
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err error
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)
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if !overrideSkip {
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skipChownRoot, err = isExistingDirectory(destination)
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if err != nil {
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return err
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}
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}
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// We Walk on the source rather than on the destination because we don't
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// want to change permissions on things we haven't created or modified.
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return filepath.WalkDir(source, func(fullpath string, _ os.DirEntry, _ error) error {
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// Do not alter the walk root iff. it existed before, as it doesn't fall under
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// the domain of "things we should chown".
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if skipChownRoot && source == fullpath {
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return nil
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}
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// Path is prefixed by source: substitute with destination instead.
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cleaned, err := filepath.Rel(source, fullpath)
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if err != nil {
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return err
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}
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fullpath = filepath.Join(destination, cleaned)
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return os.Lchown(fullpath, identity.UID, identity.GID)
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})
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}
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// normalizeDest normalises the destination of a COPY/ADD command in a
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// platform semantically consistent way.
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func normalizeDest(workingDir, requested string) (string, error) {
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dest := filepath.FromSlash(requested)
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endsInSlash := strings.HasSuffix(dest, string(os.PathSeparator))
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if !path.IsAbs(requested) {
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dest = path.Join("/", filepath.ToSlash(workingDir), dest)
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// Make sure we preserve any trailing slash
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if endsInSlash {
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dest += "/"
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}
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}
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return dest, nil
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}
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func containsWildcards(name string) bool {
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for i := 0; i < len(name); i++ {
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ch := name[i]
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if ch == '\\' {
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i++
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} else if ch == '*' || ch == '?' || ch == '[' {
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return true
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}
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}
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return false
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}
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func validateCopySourcePath(imageSource *imageMount, origPath string) error {
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return nil
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}
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