func mapLinkrevToFilerevRange(i *revlog.Index, rLo, rHi *revlog.Rec) (r1, r2 *revlog.Rec) {
r1 = getRecord(i, revlog.NewLinkRevSpec(int(rLo.Linkrev)))
r2 = getRecord(i, revlog.NewLinkRevSpec(int(rHi.Linkrev)))
if r1.Linkrev < rLo.Linkrev {
if r1.Linkrev == r2.Linkrev {
goto emptyRange
}
r1 = r1.Next()
}
if r1.Linkrev == r2.Linkrev && r2.Linkrev < rHi.Linkrev {
goto emptyRange
}
return
emptyRange:
r1 = nil
r2 = nil
return
}
func runCat(cmd *Command, w io.Writer, args []string) {
openRepository(args)
rs := getRevisionSpec()
fileArg := getFileArg(args)
st := repo.NewStore()
fileLog, err := st.OpenRevlog(fileArg)
if err != nil {
fatalf("%s", err)
}
ra := repoAccess{
fb: revlog.NewFileBuilder(),
st: st,
}
localId, ok := rs.(revlog.FileRevSpec)
if !ok {
localId, err = ra.localChangesetId(rs)
if err != nil {
return
}
}
link := revlog.NewLinkRevSpec(int(localId))
link.FindPresent = func(rlist []*revlog.Rec) (index int, err error) {
if len(rlist) > 1 {
// Does link.Rev refer to a changelog revision that is a
// descendant of one of the revisions in rlist?
for i, r := range rlist {
cr, err1 := ra.clRec(revlog.FileRevSpec(r.Linkrev))
if err1 != nil {
err = err1
return
}
if cr.IsDescendant(link.Rev) {
index = i
goto found
}
}
err = fmt.Errorf("internal error: none of the given records is an ancestor of rev %v", link.Rev)
return
found:
if !rlist[index].IsLeaf() {
return
}
}
// Check for the file's existence using the manifest.
ent, err := ra.manifestEntry(link.Rev, fileArg)
if err == nil {
index, err = findPresentByNodeId(ent, rlist)
}
return
}
r, err := link.Lookup(fileLog)
if err != nil {
fatalf("%s", err)
}
fb := revlog.NewFileBuilder()
err = fb.BuildWrite(w, r)
if err != nil {
fatalf("%s", err)
}
}
func runArchive(cmd *Command, w io.Writer, args []string) {
openRepository(args)
rs := getRevisionSpec()
b := revlog.NewFileBuilder()
c, err := getChangeset(rs, b)
if err != nil {
fatalf("%s", err)
}
var ent *store.ManifestEnt
link := revlog.NewLinkRevSpec(int(c.Linkrev))
link.FindPresent = func(rlist []*revlog.Rec) (index int, err error) {
index, err = findPresentByNodeId(ent, rlist)
return
}
mm, err := getManifest(link.Rev, c.ManifestNode, b)
if err != nil {
fatalf("%s", err)
}
st := repo.NewStore()
fileArg := getFileArg(args)
newArchive, ok := amap[*archiveType]
if !ok {
fatalf("unknown archive type: %s", *archiveType)
}
a, pathPfx, err := newArchive(fileArg)
if err != nil {
fatalf("%s", err)
}
err = createArchivalTxt(a, pathPfx, c)
if err != nil {
fatalf("%s", err)
}
pathPfx += "/"
for i := range mm {
ent = &mm[i]
f, err := st.OpenRevlog(ent.FileName)
if err != nil {
fatalf("%s", err)
}
r, err := link.Lookup(f)
if err != nil {
fatalf("%s", err)
}
name := pathPfx + ent.FileName
if ent.IsLink() {
buf, err := b.Build(r)
if err != nil {
fatalf("%s", err)
}
err = a.symlink(name, string(buf), c.Date)
if err != nil {
fatalf("%s", err)
}
} else {
var mode int
if ent.IsExecutable() {
mode = 0755
} else {
mode = 0644
}
p, err := b.PreparePatch(r)
if err != nil {
fatalf("%s", err)
}
w, err := a.createFile(name, mode, int64(r.FileLength)-int64(len(p.MetaData)), c.Date)
if err != nil {
fatalf("%s", err)
}
err = p.Apply(w)
if err != nil {
fatalf("%s", err)
}
}
}
err = a.Close()
if err != nil {
fatalf("%s", err)
}
}