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, showGraph: showGraph}
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))
d.PanicIfNotType(err, MaxLinesErr)
if err != nil {
mlw.forceWrite([]byte("...\n"))
mlw.numLines++
err = nil
}
if !node.lastCommit {
mlw.forceWrite([]byte("\n"))
}
return mlw.numLines, err
}
func writeCommitLines(node LogNode, maxLines, lineno int, w io.Writer) (lineCnt int, err error) {
mlw := &maxLineWriter{numLines: lineno, maxLines: maxLines, node: node, dest: w, needsPrefix: true, showGraph: showGraph}
err = types.WriteEncodedValueWithTags(mlw, node.commit.Get(datas.ValueField))
d.PanicIfNotType(err, MaxLinesErr)
if err != nil {
mlw.forceWrite([]byte("..."))
mlw.numLines++
err = nil
}
mlw.forceWrite([]byte("\n"))
if !node.lastCommit {
mlw.forceWrite([]byte("\n"))
}
return mlw.numLines, err
}