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moby--moby/builder/dockerfile/copy_unix.go
Sebastiaan van Stijn 686be57d0a
Update to Go 1.17.0, and gofmt with Go 1.17
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-08-24 23:33:27 +02:00

79 lines
2 KiB
Go

//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/containerfs"
"github.com/docker/docker/pkg/idtools"
)
func fixPermissions(source, destination string, identity idtools.Identity, overrideSkip bool) error {
var (
skipChownRoot bool
err error
)
if !overrideSkip {
destEndpoint := &copyEndpoint{driver: containerfs.NewLocalDriver(), path: destination}
skipChownRoot, err = isExistingDirectory(destEndpoint)
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.Walk(source, func(fullpath string, _ os.FileInfo, _ 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
}