func cleanCommand(cmd *cobra.Command, args []string) { requireStdin("This command should be run by the Git 'clean' filter") lfs.InstallHooks(false) var fileName string var cb progress.CopyCallback var file *os.File var fileSize int64 if len(args) > 0 { fileName = args[0] stat, err := os.Stat(fileName) if err == nil && stat != nil { fileSize = stat.Size() localCb, localFile, err := lfs.CopyCallbackFile("clean", fileName, 1, 1) if err != nil { Error(err.Error()) } else { cb = localCb file = localFile } } } cleaned, err := lfs.PointerClean(os.Stdin, fileName, fileSize, cb) if file != nil { file.Close() } if cleaned != nil { defer cleaned.Teardown() } if errors.IsCleanPointerError(err) { os.Stdout.Write(errors.GetContext(err, "bytes").([]byte)) return } if err != nil { Panic(err, "Error cleaning asset.") } tmpfile := cleaned.Filename mediafile, err := lfs.LocalMediaPath(cleaned.Oid) if err != nil { Panic(err, "Unable to get local media path.") } if stat, _ := os.Stat(mediafile); stat != nil { if stat.Size() != cleaned.Size && len(cleaned.Pointer.Extensions) == 0 { Exit("Files don't match:\n%s\n%s", mediafile, tmpfile) } Debug("%s exists", mediafile) } else { if err := os.Rename(tmpfile, mediafile); err != nil { Panic(err, "Unable to move %s to %s\n", tmpfile, mediafile) } Debug("Writing %s", mediafile) } lfs.EncodePointer(os.Stdout, cleaned.Pointer) }
func pointerCommand(cmd *cobra.Command, args []string) { comparing := false something := false buildOid := "" compareOid := "" if len(pointerCompare) > 0 || pointerStdin { comparing = true } if len(pointerFile) > 0 { something = true buildFile, err := os.Open(pointerFile) if err != nil { Error(err.Error()) os.Exit(1) } oidHash := sha256.New() size, err := io.Copy(oidHash, buildFile) buildFile.Close() if err != nil { Error(err.Error()) os.Exit(1) } ptr := lfs.NewPointer(hex.EncodeToString(oidHash.Sum(nil)), size, nil) fmt.Fprintf(os.Stderr, "Git LFS pointer for %s\n\n", pointerFile) buf := &bytes.Buffer{} lfs.EncodePointer(io.MultiWriter(os.Stdout, buf), ptr) if comparing { buildOid = gitHashObject(buf.Bytes()) fmt.Fprintf(os.Stderr, "\nGit blob OID: %s\n\n", buildOid) } } else { comparing = false } if len(pointerCompare) > 0 || pointerStdin { something = true compFile, err := pointerReader() if err != nil { Error(err.Error()) os.Exit(1) } buf := &bytes.Buffer{} tee := io.TeeReader(compFile, buf) _, err = lfs.DecodePointer(tee) compFile.Close() pointerName := "STDIN" if !pointerStdin { pointerName = pointerCompare } fmt.Fprintf(os.Stderr, "Pointer from %s\n\n", pointerName) if err != nil { Error(err.Error()) os.Exit(1) } fmt.Fprintf(os.Stderr, buf.String()) if comparing { compareOid = gitHashObject(buf.Bytes()) fmt.Fprintf(os.Stderr, "\nGit blob OID: %s\n", compareOid) } } if comparing && buildOid != compareOid { fmt.Fprintf(os.Stderr, "\nPointers do not match\n") os.Exit(1) } if !something { Error("Nothing to do!") os.Exit(1) } }