func (m *MergeAdder) HandleToken(l *lex.Lexer, o io.Writer) error {
switch l.Token() {
case lex.CommitTok:
parser := gitexport.NewLexerParser(l)
commit, err := parser.Commit()
if err != nil {
return err
}
parentMark := int(0)
ok := false
if commit.Mark != 0 {
if parentMark, ok = m.MarkToParentMark[commit.Mark]; ok {
commit.Merge = append(commit.Merge, fmt.Sprintf(":%d", parentMark))
}
}
m.Commits = append(m.Commits, commit)
case lex.ResetTok:
if err := m.WriteCommits(o); err != nil {
return err
}
io.WriteString(o, l.Line())
l.Consume()
default:
io.WriteString(o, l.Line())
l.Consume()
}
return nil
}
func passData(l *lex.Lexer, o io.Writer) {
data, err := l.ConsumeData()
if err != nil {
fmt.Fprintf(os.Stderr, "%d: error: %s\n", l.LineNumber(), l.Error())
os.Exit(1)
}
fmt.Fprintf(o, "data %d\n", len(data))
_, err = o.Write(data)
if err != nil {
fmt.Fprintf(os.Stderr, "%d: error: %s\n", l.LineNumber(), l.Error())
os.Exit(1)
}
}
func (t *TagHarvester) HandleToken(l *lex.Lexer, o io.Writer) error {
switch l.Token() {
case lex.TagTok:
tag := l.Field(1)
io.WriteString(o, l.Line())
l.Consume()
var mark int
_, err := fmt.Sscanf(l.Line(), "from :%d\n", &mark)
if err != nil {
return fmt.Errorf("invalid 'from' line: %s", l.Line())
}
t.TagToMark[tag] = mark
io.WriteString(o, l.Line())
l.Consume()
default:
io.WriteString(o, l.Line())
l.Consume()
}
return nil
}
func filter(l *lex.Lexer, o io.Writer, handler TokenHandler) {
for {
switch l.Token() {
case lex.EOFTok:
return
case lex.ErrTok:
fmt.Fprintf(os.Stderr, "%d: error: %s\n", l.LineNumber(), l.Error())
os.Exit(1)
case lex.InvalidTok:
fmt.Fprintf(os.Stderr, "%d: invalid command: %s\n", l.LineNumber(), l.Line())
os.Exit(1)
case lex.DataTok:
passData(l, o)
default:
if err := handler.HandleToken(l, o); err != nil {
fmt.Fprintf(os.Stderr, "%d: error: %s\n", l.LineNumber(), err)
os.Exit(1)
}
}
}
}