Esempio n. 1
0
func main() {
	flag.Usage = func() {
		fmt.Fprintln(os.Stderr, "Shows the difference between two objects\n")
		fmt.Fprintln(os.Stderr, "Usage: noms diff <object1> <object2>\n")
		flag.PrintDefaults()
		fmt.Fprintf(os.Stderr, "\nSee \"Spelling Objects\" at https://github.com/attic-labs/noms/blob/master/doc/spelling.md for details on the object argument.\n\n")
	}

	flag.Parse()
	if *showHelp {
		flag.Usage()
		return
	}

	if len(flag.Args()) != 2 {
		util.CheckError(errors.New("expected exactly two arguments"))
	}

	db1, value1, err := spec.GetPath(flag.Arg(0))
	util.CheckError(err)
	defer db1.Close()

	db2, value2, err := spec.GetPath(flag.Arg(1))
	util.CheckError(err)
	defer db2.Close()

	waitChan := outputpager.PageOutput(!*outputpager.NoPager)

	diff.Diff(os.Stdout, value1, value2)
	fmt.Fprintf(os.Stdout, "\n")

	if waitChan != nil {
		os.Stdout.Close()
		<-waitChan
	}
}
Esempio n. 2
0
func writeDiffLines(node LogNode, db datas.Database, maxLines, lineno int, w io.Writer) (lineCnt int, err error) {
	mlw := &maxLineWriter{numLines: lineno, maxLines: maxLines, node: node, dest: w, needsPrefix: true}
	parents := node.commit.Get(datas.ParentsField).(types.Set)
	var parent types.Value = nil
	if parents.Len() > 0 {
		parent = parents.First()
	}
	if parent == nil {
		_, err = fmt.Fprint(mlw, "\n")
		return 1, err
	}

	parentCommit := parent.(types.Ref).TargetValue(db).(types.Struct)
	err = diff.Diff(mlw, parentCommit.Get(datas.ValueField), node.commit.Get(datas.ValueField))
	if err != nil {
		mlw.forceWrite([]byte("...\n"))
		mlw.numLines++
		err = nil
	}
	if !node.lastCommit {
		mlw.forceWrite([]byte("\n"))
	}
	return mlw.numLines, err
}