# HG changeset patch
# User Benoit Boissinot <benoit.boissinot@ens-lyon.org>
# Date 1282497967 -7200
# Node ID 69498b1b552b831e507ce74c96b500529420f774
# Parent  456f0fed8f17b094a134f30d152985bdea0b9b5d
contrib/compress: refactor revlog copying

diff -r 456f0fed8f17 -r 69498b1b552b contrib/compress.py
--- a/contrib/compress.py	Sun Aug 22 19:13:30 2010 +0200
+++ b/contrib/compress.py	Sun Aug 22 19:26:07 2010 +0200
@@ -11,6 +11,20 @@
 from mercurial.lock import release
 import weakref
 
+def _copyrevlog(ui, src, dst, tr, progress=None):
+    if progress:
+        desc = 'adding %s' % progress
+        total = len(src)
+        def progress(count):
+            ui.progress(desc, count, unit=('revisions'), total=total)
+    else:
+        progress = lambda x: None
+    for r in src:
+        p = [src.node(i) for i in src.parentrevs(r)]
+        dst.addrevision(src.revision(src.node(r)), tr, src.linkrev(r),
+                        p[0], p[1])
+        progress(r)
+
 def compress(ui, repo, dest):
     dest = hg.localpath(ui.expandpath(dest))
     target = localrepo.instance(ui, dest, create=True)
@@ -22,39 +36,18 @@
         tr = target.transaction("compress")
         trp = weakref.proxy(tr)
 
-        src_cl = repo.changelog
-        tar_cl = target.changelog
-        total = len(repo)
-
-        for r in src_cl:
-            p = [src_cl.node(i) for i in src_cl.parentrevs(r)]
-            tar_cl.addrevision(src_cl.revision(src_cl.node(r)), trp,
-                               src_cl.linkrev(r), p[0], p[1])
-            ui.progress(('adding changesets'), r, unit=('revisions'),
-                        total=total)
-
-        src_mnfst = repo.manifest
-        tar_mnfst = target.manifest
-        for r in src_mnfst:
-            p = [src_mnfst.node(i) for i in src_mnfst.parentrevs(r)]
-            tar_mnfst.addrevision(src_mnfst.revision(src_mnfst.node(r)), trp,
-                                   src_mnfst.linkrev(r), p[0], p[1])
-            ui.progress(('adding manifest'), r, unit=('revisions'),
-                        total=total)
+        _copyrevlog(ui, repo.changelog, target.changelog, trp, 'changesets')
+        _copyrevlog(ui, repo.manifest, target.manifest, trp, 'manifest')
 
         # only keep indexes and filter "data/" prefix and ".i" suffix
         datafiles = [fn[5:-2] for fn, f2, size in repo.store.datafiles()
                                       if size and fn.endswith('.i')]
         total = len(datafiles)
         for cnt, f in enumerate(datafiles):
-            sf = repo.file(f)
-            tf = target.file(f)
-            for r in sf:
-                p = [sf.node(i) for i in sf.parentrevs(r)]
-                tf.addrevision(sf.revision(sf.node(r)), trp, sf.linkrev(r),
-                               p[0], p[1])
+            _copyrevlog(ui, repo.file(f), target.file(f), trp)
             ui.progress(('adding files'), cnt, item=f, unit=('file'),
                         total=total)
+
         tr.close()
     finally:
         if tr: