func commitDircommit(newpath string, digest []byte) error {
// Set the XattrCommit
err := attrs.Set(newpath, XattrCommit, digest)
if err != nil {
return err
}
// Commit the file to its extended attributes
info, err := os.Stat(newpath)
if err != nil {
return err
}
_, err = repo.CommitFileHash(newpath, info, digest, false)
if err != nil {
return err
}
return nil
}
func (p *FilePreparator) prepareCopy(src, dst string) bool {
var err error
if p.Logger != nil {
p.Logger(p, src, dst, false, false)
}
p.NumFiles += 1
srci, srcerr := os.Lstat(src)
dsti, dsterr := os.Lstat(dst)
//
// File in source but not in destination
//
if os.IsNotExist(dsterr) && srcerr == nil {
if srci.IsDir() {
if p.DocIgnore && ignore.IsIgnored(src) {
if p.Verbose {
fmt.Printf("Ignoring %s\n", src)
}
return true
}
res := p.HandleAction(*NewCreateDir(src, dst, srci))
if !res {
return false
}
f, err := os.Open(src)
if err != nil {
return p.HandleError(err)
}
defer f.Close()
names, err := f.Readdirnames(-1)
if err != nil {
return p.HandleError(err)
}
for _, name := range names {
if !p.prepareCopy(filepath.Join(src, name), filepath.Join(dst, name)) {
return false
}
}
return true
} else {
var srchash []byte
if !srci.IsDir() {
srchash, err = repo.GetHash(src, srci, p.Dedup != nil)
if err != nil {
return p.HandleError(err)
}
}
res := p.HandleAction(*NewCopyFile(src, dst, srchash, srci))
p.TotalBytes += uint64(size(srci))
return res
}
}
//
// [Bidir] File in destination but not in source: reverse copy
//
if p.Bidir && os.IsNotExist(srcerr) && dsterr == nil {
// FIXME: this could probably be simplified into
// return p.prepareCopy(dst, src)
if dsti.IsDir() {
if p.DocIgnore && ignore.IsIgnored(dst) {
if p.Verbose {
fmt.Printf("Ignoring %s\n", dst)
}
return true
}
res := p.HandleAction(*NewCreateDir(dst, src, dsti))
if !res {
return false
}
f, err := os.Open(dst)
if err != nil {
return p.HandleError(err)
}
defer f.Close()
names, err := f.Readdirnames(-1)
if err != nil {
return p.HandleError(err)
}
for _, name := range names {
if !p.prepareCopy(filepath.Join(src, name), filepath.Join(dst, name)) {
return false
}
}
return true
} else {
var dsthash []byte
if !dsti.IsDir() {
dsthash, err = repo.GetHash(dst, dsti, p.Dedup != nil)
if err != nil {
return p.HandleError(err)
}
}
res := p.HandleAction(*NewCopyAction(dst, src, dsthash, size(dsti), "", false, dsti.Mode(), 0))
p.TotalBytes += uint64(size(dsti))
return res
}
}
//
// [Dedup] File in destination but not in source: register in dedup
//
if p.Dedup != nil && os.IsNotExist(srcerr) && dsterr == nil {
hash, err := repo.GetHash(dst, dsti, p.CheckHash)
if err != nil {
if !p.HandleError(err) {
return false
}
} else if hash != nil {
p.Dedup[string(hash)] = append(p.Dedup[string(hash)], dst)
}
}
//
// Handle stat() errors
//
if srcerr != nil {
return p.HandleError(srcerr)
}
if dsterr != nil {
return p.HandleError(dsterr)
}
//
// Both source and destination are directories, merge
//
if srci.IsDir() && dsti.IsDir() {
if p.DocIgnore && (ignore.IsIgnored(src) || ignore.IsIgnored(dst)) {
if p.Verbose {
fmt.Printf("Ignoring %s (source and destination)\n", src)
}
return true
}
var srcnames map[string]bool
if p.Bidir {
srcnames = map[string]bool{}
}
f, err := os.Open(src)
if err != nil {
return p.HandleError(err)
}
defer f.Close()
names, err := f.Readdirnames(-1)
if err != nil {
return p.HandleError(err)
}
for _, name := range names {
if p.Bidir {
srcnames[name] = true
}
if !p.prepareCopy(filepath.Join(src, name), filepath.Join(dst, name)) {
return false
}
}
if p.Bidir {
f, err := os.Open(dst)
if err != nil {
return p.HandleError(err)
}
defer f.Close()
dstnames, err := f.Readdirnames(-1)
if err != nil {
return p.HandleError(err)
}
for _, name := range dstnames {
if srcnames[name] {
continue
}
if !p.prepareCopy(filepath.Join(src, name), filepath.Join(dst, name)) {
return false
}
}
}
return true
}
//
// Source and destination are regular files
// If hash is different, there is a conflict
//
var srch, dsth []byte
if !srci.IsDir() {
srch, err = repo.GetHash(src, srci, false)
computed := false
if err == nil && srch == nil {
if p.Logger != nil {
p.Logger(p, src, dst, true, false)
}
srch, err = repo.HashFile(src, srci)
computed = true
}
if err == nil && computed && p.Commit {
_, err = repo.CommitFileHash(src, srci, srch, false)
}
if err != nil {
return p.HandleError(err)
}
}
if !dsti.IsDir() {
dsth, err = repo.GetHash(dst, dsti, false)
computed := false
if err == nil && dsth == nil {
if p.Logger != nil {
p.Logger(p, src, dst, false, true)
}
dsth, err = repo.HashFile(dst, dsti)
computed = true
}
if err == nil && computed && p.Commit {
_, err = repo.CommitFileHash(dst, dsti, dsth, false)
}
if err != nil {
return p.HandleError(err)
}
}
if bytes.Equal(srch, dsth) && srci.Mode()&os.ModeSymlink == dsti.Mode()&os.ModeSymlink {
return true
}
if repo.ConflictFile(src) == "" {
dstname := repo.FindConflictFileName(dst, srch)
if dstname != "" {
p.TotalBytes += uint64(size(srci))
if !p.HandleAction(*NewCopyAction(src, dstname, srch, size(srci), dst, true, srci.Mode(), dsti.Mode())) {
return false
}
}
}
if p.Bidir && repo.ConflictFile(dst) == "" {
srcname := repo.FindConflictFileName(src, dsth)
if srcname != "" {
p.TotalBytes += uint64(size(dsti))
if !p.HandleAction(*NewCopyAction(dst, srcname, dsth, size(dsti), src, true, dsti.Mode(), srci.Mode())) {
return false
}
}
}
return true
}
func (act *CopyAction) Run() error {
var err error
if act.Link {
err = os.Link(act.Src, act.Dst)
if err != nil {
return fmt.Errorf("link %s: %s", act.Dst, err.Error())
}
} else if act.manualMode && act.srcInfo.Mode()&^(os.ModeDir /*|os.ModeSymlink*/) == 0 { // FIXME: enable symlinks
stat, ok := act.srcInfo.Sys().(*syscall.Stat_t)
if !ok {
panic("Could not get Stat_t")
}
symlink := act.srcInfo.Mode()&os.ModeSymlink != 0
if act.srcInfo.IsDir() {
err = os.Mkdir(act.Dst, 0700)
if err != nil {
return err
}
} else if symlink {
link, err := os.Readlink(act.Src)
if err != nil {
return err
}
err = os.Symlink(link, act.Dst)
if err != nil {
return err
}
} else {
f, err := os.OpenFile(act.Dst, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer f.Close()
f0, err := os.Open(act.Src)
if err != nil {
return err
}
defer f0.Close()
_, err = io.Copy(f, f0)
if err != nil {
return err
}
}
err = os.Lchown(act.Dst, int(stat.Uid), int(stat.Gid))
if err != nil {
log.Println(err)
err = nil
}
if !symlink {
atime := time.Unix(stat.Atim.Sec, stat.Atim.Nsec)
err = os.Chtimes(act.Dst, atime, act.srcInfo.ModTime())
if err != nil {
return err
}
err = os.Chmod(act.Dst, act.SrcMode)
if err != nil {
return err
}
// FIXME: extended attributes for symlinks
// golang is missing some syscalls
xattr, values, err := attrs.GetList(act.Src)
if err != nil {
return err
}
for i, attrname := range xattr {
err = attrs.Set(act.Src, attrname, values[i])
if err != nil {
return err
}
}
}
return nil
} else {
os.MkdirAll(filepath.Dir(act.Dst), 0755) // Ignore error
cmd := exec.Command("/bin/cp", "-a", "--no-preserve=mode", "--reflink=auto", "-d", "-T", act.Src, act.Dst)
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
return fmt.Errorf("cp %s %s: %s", act.Src, act.Dst, err.Error())
}
err = os.Chmod(act.Dst, act.SrcMode)
if err != nil {
return err
}
}
if act.Conflict {
if act.SrcMode&os.ModeSymlink == 0 {
err = repo.MarkConflictFor(act.Dst, filepath.Base(act.OriginalDst))
if err != nil {
return fmt.Errorf("%s: could not mark conflict: %s", act.Dst, err.Error())
}
}
if act.OrigDstMode&os.ModeSymlink == 0 {
err = repo.AddConflictAlternative(act.OriginalDst, filepath.Base(act.Dst))
if err != nil {
return fmt.Errorf("%s: could add conflict alternative: %s", act.Dst, err.Error())
}
}
}
if act.SrcMode&os.ModeSymlink == 0 {
if act.Hash != nil {
info, err := os.Lstat(act.Dst)
if err != nil {
return fmt.Errorf("%s: could add lstat: %s", act.Dst, err.Error())
}
_, err = repo.CommitFileHash(act.Dst, info, act.Hash, false)
if err != nil {
return fmt.Errorf("%s: could not commit: %s", act.Dst, err.Error())
}
} else {
hash, err := attrs.Get(act.Src, repo.XattrHash)
if err == nil {
err = attrs.Set(act.Dst, repo.XattrHash, hash)
if err != nil {
return fmt.Errorf("%s: could add xattr %s: %s", act.Dst, repo.XattrHash, err.Error())
}
}
hashTime, err := attrs.Get(act.Src, repo.XattrHashTime)
if err == nil {
err = attrs.Set(act.Dst, repo.XattrHashTime, hashTime)
if err != nil {
return fmt.Errorf("%s: could add xattr %s: %s", act.Dst, repo.XattrHashTime, err.Error())
}
}
}
}
return nil
}