transaction: remember original len(repo) instead of tracking added revs (API)

It's silly to keep updating xrange(len(changelog), len(changelog) + 1) for
each added revision. Instead, let's simply remember the first revision to
be added.

The test output slightly changed as the branch cache is also warmed up by
stream clone, which seems more consistent.

.. api::

   ``tr.changes['revs']`` is replaced by ``tr.changes['origrepolen']`` which
   is the first revision number to be added.

mercurial/changelog.py

@@ -545,19 +545,3 b' class changelog(revlog.revlog):'
         just to access this is costly."""
         extra = self.read(rev)[5]
         return encoding.tolocal(extra.get("branch")), 'close' in extra
-
-    def _addrevision(self, node, rawtext, transaction, *args, **kwargs):
-        # overlay over the standard revlog._addrevision to track the new
-        # revision on the transaction.
-        rev = len(self)
-        node = super(changelog, self)._addrevision(node, rawtext, transaction,
-                                                   *args, **kwargs)
-        revs = transaction.changes.get('revs')
-        if revs is not None:
-            if revs:
-                assert revs[-1] + 1 == rev
-                revs = pycompat.membershiprange(revs[0], rev + 1)
-            else:
-                revs = pycompat.membershiprange(rev, rev + 1)
-            transaction.changes['revs'] = revs
-        return node

mercurial/localrepo.py

@@ -1393,7 +1393,7 b' class localrepository(object):'
                                      releasefn=releasefn,
                                      checkambigfiles=_cachedfiles,
                                      name=desc)
-        tr.changes['revs'] = pycompat.xrange(0, 0)
+        tr.changes['origrepolen'] = len(self)
         tr.changes['obsmarkers'] = set()
         tr.changes['phases'] = {}
         tr.changes['bookmarks'] = {}
@@ -1611,7 +1611,7 b' class localrepository(object):'
             # later call to `destroyed` will refresh them.
             return
 
-        if tr is None or tr.changes['revs']:
+        if tr is None or tr.changes['origrepolen'] < len(self):
             # updating the unfiltered branchmap should refresh all the others,
             self.ui.debug('updating the branch cache\n')
             branchmap.updatecache(self.filtered('served'))

mercurial/obsutil.py

@@ -465,13 +465,13 b' def getobsoleted(repo, tr):'
     succsmarkers = repo.obsstore.successors.get
     public = phases.public
     addedmarkers = tr.changes.get('obsmarkers')
-    addedrevs = tr.changes['revs']
+    origrepolen = tr.changes['origrepolen']
     seenrevs = set()
     obsoleted = set()
     for mark in addedmarkers:
         node = mark[0]
         rev = torev(node)
-        if rev is None or rev in seenrevs or rev in addedrevs:
+        if rev is None or rev in seenrevs or rev >= origrepolen:
             continue
         seenrevs.add(rev)
         if phase(repo, rev) == public:

mercurial/scmutil.py

@@ -1618,13 +1618,13 b' def registersummarycallback(repo, otr, t'
         @reportsummary
         def reportnewcs(repo, tr):
             """Report the range of new revisions pulled/unbundled."""
-            newrevs = tr.changes.get('revs', pycompat.xrange(0, 0))
-            if not newrevs:
+            origrepolen = tr.changes.get('origrepolen', len(repo))
+            if origrepolen >= len(repo):
                 return
 
             # Compute the bounds of new revisions' range, excluding obsoletes.
             unfi = repo.unfiltered()
-            revs = unfi.revs('%ld and not obsolete()', newrevs)
+            revs = unfi.revs('%d: and not obsolete()', origrepolen)
             if not revs:
                 # Got only obsoletes.
                 return
@@ -1641,13 +1641,13 b' def registersummarycallback(repo, otr, t'
             """Report statistics of phase changes for changesets pre-existing
             pull/unbundle.
             """
-            newrevs = tr.changes.get('revs', pycompat.xrange(0, 0))
+            origrepolen = tr.changes.get('origrepolen', len(repo))
             phasetracking = tr.changes.get('phases', {})
             if not phasetracking:
                 return
             published = [
                 rev for rev, (old, new) in phasetracking.iteritems()
-                if new == phases.public and rev not in newrevs
+                if new == phases.public and rev < origrepolen
             ]
             if not published:
                 return

tests/test-clone-uncompressed.t

@@ -247,6 +247,7 b' Clone with background file closing enabl'
   sending stream_out command
   1027 files to transfer, 96.3 KB of data
   starting 4 threads for background file closing
+  updating the branch cache
   transferred 96.3 KB in * seconds (*/sec) (glob)
   query 1; heads
   sending batch command
@@ -275,6 +276,7 b' Clone with background file closing enabl'
   1030 files to transfer, 96.4 KB of data
   starting 4 threads for background file closing
   starting 4 threads for background file closing
+  updating the branch cache
   transferred 96.4 KB in * seconds (* */sec) (glob)
   bundle2-input-part: total payload size 112077
   bundle2-input-part: "listkeys" (params: 1 mandatory) supported

tests/test-stream-bundle-v2.t

@@ -88,6 +88,7 b' Test that we can apply the bundle as a s'
   transferred 1.65 KB in \d\.\d seconds \(.*/sec\) (re)
   bundle2-input-part: total payload size 1840
   bundle2-input-bundle: 0 parts total
+  updating the branch cache
   finished applying clone bundle
   query 1; heads
   sending batch command
@@ -142,6 +143,7 b' Test that we can apply the bundle as a s'
   transferred 1.65 KB in *.* seconds (*/sec) (glob)
   bundle2-input-part: total payload size 1840
   bundle2-input-bundle: 0 parts total
+  updating the branch cache
   finished applying clone bundle
   query 1; heads
   sending batch command