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- // +build !linux
- package archive
- import (
- "fmt"
- "os"
- "path/filepath"
- "runtime"
- "strings"
- "github.com/docker/docker/pkg/system"
- )
- func collectFileInfoForChanges(oldDir, newDir string) (*FileInfo, *FileInfo, error) {
- var (
- oldRoot, newRoot *FileInfo
- err1, err2 error
- errs = make(chan error, 2)
- )
- go func() {
- oldRoot, err1 = collectFileInfo(oldDir)
- errs <- err1
- }()
- go func() {
- newRoot, err2 = collectFileInfo(newDir)
- errs <- err2
- }()
- // block until both routines have returned
- for i := 0; i < 2; i++ {
- if err := <-errs; err != nil {
- return nil, nil, err
- }
- }
- return oldRoot, newRoot, nil
- }
- func collectFileInfo(sourceDir string) (*FileInfo, error) {
- root := newRootFileInfo()
- err := filepath.Walk(sourceDir, func(path string, f os.FileInfo, err error) error {
- if err != nil {
- return err
- }
- // Rebase path
- relPath, err := filepath.Rel(sourceDir, path)
- if err != nil {
- return err
- }
- // As this runs on the daemon side, file paths are OS specific.
- relPath = filepath.Join(string(os.PathSeparator), relPath)
- // See https://github.com/golang/go/issues/9168 - bug in filepath.Join.
- // Temporary workaround. If the returned path starts with two backslashes,
- // trim it down to a single backslash. Only relevant on Windows.
- if runtime.GOOS == "windows" {
- if strings.HasPrefix(relPath, `\\`) {
- relPath = relPath[1:]
- }
- }
- if relPath == string(os.PathSeparator) {
- return nil
- }
- parent := root.LookUp(filepath.Dir(relPath))
- if parent == nil {
- return fmt.Errorf("collectFileInfo: Unexpectedly no parent for %s", relPath)
- }
- info := &FileInfo{
- name: filepath.Base(relPath),
- children: make(map[string]*FileInfo),
- parent: parent,
- }
- s, err := system.Lstat(path)
- if err != nil {
- return err
- }
- info.stat = s
- info.capability, _ = system.Lgetxattr(path, "security.capability")
- parent.children[info.name] = info
- return nil
- })
- if err != nil {
- return nil, err
- }
- return root, nil
- }
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