// BuilderCopy copies/extracts a source FileInfo to a destination path inside a container
// specified by a container object.
// TODO: make sure callers don't unnecessarily convert destPath with filepath.FromSlash (Copy does it already).
// BuilderCopy should take in abstract paths (with slashes) and the implementation should convert it to OS-specific paths.
func (d Docker) BuilderCopy(cID string, destPath string, src builder.FileInfo, decompress bool) error {
srcPath := src.Path()
destExists := true
destDir := false
rootUID, rootGID := d.Daemon.GetRemappedUIDGID()
// Work in daemon-local OS specific file paths
destPath = filepath.FromSlash(destPath)
c, err := d.Daemon.GetContainer(cID)
if err != nil {
return err
}
err = d.Daemon.Mount(c)
if err != nil {
return err
}
defer d.Daemon.Unmount(c)
dest, err := c.GetResourcePath(destPath)
if err != nil {
return err
}
// Preserve the trailing slash
// TODO: why are we appending another path separator if there was already one?
if strings.HasSuffix(destPath, string(os.PathSeparator)) || destPath == "." {
destDir = true
dest += string(os.PathSeparator)
}
destPath = dest
destStat, err := os.Stat(destPath)
if err != nil {
if !os.IsNotExist(err) {
logrus.Errorf("Error performing os.Stat on %s. %s", destPath, err)
return err
}
destExists = false
}
if src.IsDir() {
// copy as directory
if err := d.Archiver.CopyWithTar(srcPath, destPath); err != nil {
return err
}
return fixPermissions(srcPath, destPath, rootUID, rootGID, destExists)
}
if decompress && archive.IsArchivePath(srcPath) {
// Only try to untar if it is a file and that we've been told to decompress (when ADD-ing a remote file)
// First try to unpack the source as an archive
// to support the untar feature we need to clean up the path a little bit
// because tar is very forgiving. First we need to strip off the archive's
// filename from the path but this is only added if it does not end in slash
tarDest := destPath
if strings.HasSuffix(tarDest, string(os.PathSeparator)) {
tarDest = filepath.Dir(destPath)
}
// try to successfully untar the orig
err := d.Archiver.UntarPath(srcPath, tarDest)
if err != nil {
logrus.Errorf("Couldn't untar to %s: %v", tarDest, err)
}
return err
}
// only needed for fixPermissions, but might as well put it before CopyFileWithTar
if destDir || (destExists && destStat.IsDir()) {
destPath = filepath.Join(destPath, src.Name())
}
if err := idtools.MkdirAllNewAs(filepath.Dir(destPath), 0755, rootUID, rootGID); err != nil {
return err
}
if err := d.Archiver.CopyFileWithTar(srcPath, destPath); err != nil {
return err
}
return fixPermissions(srcPath, destPath, rootUID, rootGID, destExists)
}
// BuilderCopy copies/extracts a source FileInfo to a destination path inside a container
// specified by a container object.
// TODO: make sure callers don't unnecessarily convert destPath with filepath.FromSlash (Copy does it already).
// BuilderCopy should take in abstract paths (with slashes) and the implementation should convert it to OS-specific paths.
func (d Docker) BuilderCopy(cId string, destPath string, src builder.FileInfo, decompress bool) error {
// add copy item to exec-copy.sh
podId, ok := d.hyper.CopyPods[cId]
if !ok {
return fmt.Errorf("%s is not a copy pod", cId)
}
copyshell, err := os.OpenFile(filepath.Join("/var/run/hyper/shell", podId, "exec-copy.sh"), os.O_RDWR|os.O_APPEND, 0755)
if err != nil {
glog.Errorf(err.Error())
return err
}
fmt.Fprintf(copyshell, fmt.Sprintf("cp -r /tmp/src/%s %s\n", src.Name(), destPath))
copyshell.Close()
srcPath := src.Path()
destExists := true
destDir := false
rootUID, rootGID := d.Daemon.GetRemappedUIDGID()
// Work in daemon-local OS specific file paths
destPath = filepath.Join("/var/run/hyper/temp/", podId, filepath.FromSlash(src.Name()))
// Preserve the trailing slash
// TODO: why are we appending another path separator if there was already one?
if strings.HasSuffix(destPath, string(os.PathSeparator)) || destPath == "." {
destDir = true
}
destStat, err := os.Stat(destPath)
if err != nil {
if !os.IsNotExist(err) {
glog.Errorf("Error performing os.Stat on %s. %s", destPath, err)
return err
}
destExists = false
}
uidMaps, gidMaps := d.Daemon.GetUIDGIDMaps()
archiver := &archive.Archiver{
Untar: chrootarchive.Untar,
UIDMaps: uidMaps,
GIDMaps: gidMaps,
}
if src.IsDir() {
// copy as directory
if err := archiver.CopyWithTar(srcPath, destPath); err != nil {
return err
}
return fixPermissions(srcPath, destPath, rootUID, rootGID, destExists)
}
if decompress && archive.IsArchivePath(srcPath) {
// Only try to untar if it is a file and that we've been told to decompress (when ADD-ing a remote file)
// First try to unpack the source as an archive
// to support the untar feature we need to clean up the path a little bit
// because tar is very forgiving. First we need to strip off the archive's
// filename from the path but this is only added if it does not end in slash
tarDest := destPath
if strings.HasSuffix(tarDest, string(os.PathSeparator)) {
tarDest = filepath.Dir(destPath)
}
// try to successfully untar the orig
err := archiver.UntarPath(srcPath, tarDest)
if err != nil {
glog.Errorf("Couldn't untar to %s: %v", tarDest, err)
}
return err
}
// only needed for fixPermissions, but might as well put it before CopyFileWithTar
if destDir || (destExists && destStat.IsDir()) {
destPath = filepath.Join(destPath, src.Name())
}
if err := idtools.MkdirAllNewAs(filepath.Dir(destPath), 0755, rootUID, rootGID); err != nil {
return err
}
if err := archiver.CopyFileWithTar(srcPath, destPath); err != nil {
return err
}
return fixPermissions(srcPath, destPath, rootUID, rootGID, destExists)
}
