func BuildEntry(r *revlog.Rec, fb *revlog.FileBuilder) (e *Entry, err error) {
err = fb.BuildWrite(nil, r)
if err != nil {
return
}
e, err = parseEntryData(fb.Bytes())
if err == nil {
e.Rec = r
e.Id = r.Id().Node()
}
return
}
func printChangelog(w io.Writer, rFrom, rTo *revlog.Rec, logIndex *revlog.Index, tags map[string][]string, wantDirPrefix, wantFile string) (err error) {
var clr *revlog.Rec
match := func([]string) bool { return true }
if wantFile != "" {
match = func(files []string) (ok bool) {
for _, f := range files {
if f == wantFile {
ok = true
return
}
}
return
}
} else if wantDirPrefix != "" {
match = func(files []string) (ok bool) {
for _, f := range files {
if strings.HasPrefix(f, wantDirPrefix) {
ok = true
return
}
}
return
}
}
fb := revlog.NewFileBuilder()
fb.SetDataCache(&dc)
fb.KeepDataOpen()
defer fb.CloseData()
t, err := setupLogTemplate(logTemplate, tags)
if err != nil {
return
}
ch := make(chan *changelog.Entry, 16)
errch := make(chan error, 0)
go func() {
errch <- t.Execute(w, ch)
}()
r := rFrom
target := rTo.FileRev()
var next func()
if rFrom.FileRev() > target {
next = func() { r = r.Prev() }
} else {
next = func() { r = r.Next() }
}
i := 0
for {
if logIndex == nil {
clr = r
} else {
clr, err = revlog.FileRevSpec(r.Linkrev).Lookup(logIndex)
if err != nil {
return
}
}
c, err1 := changelog.BuildEntry(clr, fb)
if err1 != nil {
err = err1
return
}
c.Rec = clr
if match(c.Files) {
select {
case ch <- c:
i++
case err = <-errch:
return
}
}
if r.FileRev() == target {
break
}
next()
if r.FileRev() == -1 {
break
}
if *logL != 0 && i == *logL {
break
}
}
close(ch)
err = <-errch
return
}