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