func diffMaps(dq *diffQueue, w io.Writer, p types.Path, v1, v2 types.Map) {
wroteHeader := false
added, removed, modified := v2.Diff(v1)
for _, k := range added {
wroteHeader = writeHeader(w, wroteHeader, p)
line(w, addPrefix, k, v2.Get(k))
}
for _, k := range removed {
wroteHeader = writeHeader(w, wroteHeader, p)
line(w, subPrefix, k, v1.Get(k))
}
for _, k := range modified {
c1, c2 := v1.Get(k), v2.Get(k)
if canCompare(c1, c2) {
buf := bytes.NewBuffer(nil)
d.Exp.NoError(types.WriteEncodedValueWithTags(buf, k))
p1 := p.AddField(buf.String())
dq.PushBack(diffInfo{path: p1, key: k, v1: c1, v2: c2})
} else {
wroteHeader = writeHeader(w, wroteHeader, p)
line(w, subPrefix, k, v1.Get(k))
line(w, addPrefix, k, v2.Get(k))
}
}
writeFooter(w, wroteHeader)
}
func main() {
flag.Usage = func() {
fmt.Fprintln(os.Stderr, "Shows a serialization of a Noms object\n")
fmt.Fprintln(os.Stderr, "Usage: noms show <object>\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()) != 1 {
util.CheckError(errors.New("expected exactly one argument"))
}
database, value, err := spec.GetPath(flag.Arg(0))
util.CheckError(err)
waitChan := outputpager.PageOutput(!*outputpager.NoPager)
types.WriteEncodedValueWithTags(os.Stdout, value)
fmt.Fprintf(os.Stdout, "\n")
database.Close()
if waitChan != nil {
os.Stdout.Close()
<-waitChan
}
}
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}
err = types.WriteEncodedValueWithTags(mlw, node.commit.Get(datas.ValueField))
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
}
func writeEncodedValueWithTags(w io.Writer, v types.Value) {
d.PanicIfError(types.WriteEncodedValueWithTags(w, v))
}
