diff options
Diffstat (limited to 'vendor/github.com/mrunalp/fileutils/fileutils.go')
-rw-r--r-- | vendor/github.com/mrunalp/fileutils/fileutils.go | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/vendor/github.com/mrunalp/fileutils/fileutils.go b/vendor/github.com/mrunalp/fileutils/fileutils.go deleted file mode 100644 index 7421e6207..000000000 --- a/vendor/github.com/mrunalp/fileutils/fileutils.go +++ /dev/null @@ -1,168 +0,0 @@ -package fileutils - -import ( - "fmt" - "io" - "os" - "path/filepath" - "syscall" -) - -// CopyFile copies the file at source to dest -func CopyFile(source string, dest string) error { - si, err := os.Lstat(source) - if err != nil { - return err - } - - st, ok := si.Sys().(*syscall.Stat_t) - if !ok { - return fmt.Errorf("could not convert to syscall.Stat_t") - } - - uid := int(st.Uid) - gid := int(st.Gid) - modeType := si.Mode() & os.ModeType - - // Handle symlinks - if modeType == os.ModeSymlink { - target, err := os.Readlink(source) - if err != nil { - return err - } - if err := os.Symlink(target, dest); err != nil { - return err - } - } - - // Handle device files - if modeType == os.ModeDevice { - devMajor := int64(major(uint64(st.Rdev))) - devMinor := int64(minor(uint64(st.Rdev))) - mode := uint32(si.Mode() & os.ModePerm) - if si.Mode()&os.ModeCharDevice != 0 { - mode |= syscall.S_IFCHR - } else { - mode |= syscall.S_IFBLK - } - if err := syscall.Mknod(dest, mode, int(mkdev(devMajor, devMinor))); err != nil { - return err - } - } - - // Handle regular files - if si.Mode().IsRegular() { - err = copyInternal(source, dest) - if err != nil { - return err - } - } - - // Chown the file - if err := os.Lchown(dest, uid, gid); err != nil { - return err - } - - // Chmod the file - if !(modeType == os.ModeSymlink) { - if err := os.Chmod(dest, si.Mode()); err != nil { - return err - } - } - - return nil -} - -func copyInternal(source, dest string) (retErr error) { - sf, err := os.Open(source) - if err != nil { - return err - } - defer sf.Close() - - df, err := os.Create(dest) - if err != nil { - return err - } - defer func() { - err := df.Close() - if retErr == nil { - retErr = err - } - }() - - _, err = io.Copy(df, sf) - return err -} - -// CopyDirectory copies the files under the source directory -// to dest directory. The dest directory is created if it -// does not exist. -func CopyDirectory(source string, dest string) error { - fi, err := os.Stat(source) - if err != nil { - return err - } - - // Get owner. - st, ok := fi.Sys().(*syscall.Stat_t) - if !ok { - return fmt.Errorf("could not convert to syscall.Stat_t") - } - - // We have to pick an owner here anyway. - if err := MkdirAllNewAs(dest, fi.Mode(), int(st.Uid), int(st.Gid)); err != nil { - return err - } - - return filepath.Walk(source, func(path string, info os.FileInfo, err error) error { - if err != nil { - return err - } - - // Get the relative path - relPath, err := filepath.Rel(source, path) - if err != nil { - return nil - } - - if info.IsDir() { - // Skip the source directory. - if path != source { - // Get the owner. - st, ok := info.Sys().(*syscall.Stat_t) - if !ok { - return fmt.Errorf("could not convert to syscall.Stat_t") - } - - uid := int(st.Uid) - gid := int(st.Gid) - - if err := os.Mkdir(filepath.Join(dest, relPath), info.Mode()); err != nil { - return err - } - - if err := os.Lchown(filepath.Join(dest, relPath), uid, gid); err != nil { - return err - } - } - return nil - } - - return CopyFile(path, filepath.Join(dest, relPath)) - }) -} - -// Gives a number indicating the device driver to be used to access the passed device -func major(device uint64) uint64 { - return (device >> 8) & 0xfff -} - -// Gives a number that serves as a flag to the device driver for the passed device -func minor(device uint64) uint64 { - return (device & 0xff) | ((device >> 12) & 0xfff00) -} - -func mkdev(major int64, minor int64) uint32 { - return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff)) -} |