# HG changeset patch
# User Gilles Moris <gilles.moris@free.fr>
# Date 1249974242 -7200
# Node ID 58edd448da4ff8c5cf10f5f5431cda6f967725db
# Parent  d051db8e9e4402a4d198aa817e5873df02d16bea
archive: add branch and tag informations to the .hg_archival.txt file

Up to this changeset, only the repo (first node) and current node hash were
included. This adds also the named branch and tags.

So the additional lines to .hg_archival.txt are
branch: the named branch
tag: the global tags of this revision, one per line in case of multiple tags
latesttag: if the revision is untagged, the latest tag (most recent in
           ancestors), again one per line if this ancestor has multiple tags.
latestagdistance: the longest distance (changesets) to this latest ancestor.

diff -r d051db8e9e44 -r 58edd448da4f mercurial/archival.py
--- a/mercurial/archival.py	Mon Oct 19 23:27:20 2009 +0300
+++ b/mercurial/archival.py	Tue Aug 11 09:04:02 2009 +0200
@@ -7,6 +7,7 @@
 
 from i18n import _
 from node import hex
+import cmdutil
 import util
 import cStringIO, os, stat, tarfile, time, zipfile
 import zlib, gzip
@@ -217,9 +218,25 @@
     archiver = archivers[kind](dest, prefix, mtime or ctx.date()[0])
 
     if repo.ui.configbool("ui", "archivemeta", True):
-        write('.hg_archival.txt', 0644, False,
-              lambda: 'repo: %s\nnode: %s\n' % (
-                  hex(repo.changelog.node(0)), hex(node)))
+        def metadata():
+            base = 'repo: %s\nnode: %s\nbranch: %s\n' % (
+                hex(repo.changelog.node(0)), hex(node), ctx.branch())
+
+            tags = ''.join('tag: %s\n' % t for t in ctx.tags()
+                           if repo.tagtype(t) == 'global')
+            if not tags:
+                repo.ui.pushbuffer()
+                opts = {'template': '{latesttag}\n{latesttagdistance}',
+                        'style': '', 'patch': None, 'git': None}
+                cmdutil.show_changeset(repo.ui, repo, opts).show(ctx)
+                ltags, dist = repo.ui.popbuffer().split('\n')
+                tags = ''.join('latesttag: %s\n' % t for t in ltags.split(':'))
+                tags += 'latesttagdistance: %s\n' % dist
+
+            return base + tags
+
+        write('.hg_archival.txt', 0644, False, metadata)
+
     for f in ctx:
         ff = ctx.flags(f)
         write(f, 'x' in ff and 0755 or 0644, 'l' in ff, ctx[f].data)
diff -r d051db8e9e44 -r 58edd448da4f tests/test-archive
--- a/tests/test-archive	Mon Oct 19 23:27:20 2009 +0300
+++ b/tests/test-archive	Tue Aug 11 09:04:02 2009 +0200
@@ -108,6 +108,14 @@
     echo 'rev-0.tar created'
 fi
 
+echo '% test .hg_archival.txt'
+hg archive ../test-tags
+cat ../test-tags/.hg_archival.txt
+hg tag -r 2 mytag
+hg tag -r 2 anothertag
+hg archive -r 2 ../test-lasttag
+cat ../test-lasttag/.hg_archival.txt
+
 hg archive -t bogus test.bogus
 
 echo % server errors
diff -r d051db8e9e44 -r 58edd448da4f tests/test-archive.out
--- a/tests/test-archive.out	Mon Oct 19 23:27:20 2009 +0300
+++ b/tests/test-archive.out	Tue Aug 11 09:04:02 2009 +0200
@@ -57,6 +57,17 @@
 test-TIP/baz/bletch
 test-TIP/foo
 rev-0.tar created
+% test .hg_archival.txt
+repo: daa7f7c60e0a224faa4ff77ca41b2760562af264
+node: 2c0277f05ed49d1c8328fb9ba92fba7a5ebcb33e
+branch: default
+latesttag: null
+latesttagdistance: 3
+repo: daa7f7c60e0a224faa4ff77ca41b2760562af264
+node: 2c0277f05ed49d1c8328fb9ba92fba7a5ebcb33e
+branch: default
+tag: anothertag
+tag: mytag
 abort: unknown archive type 'bogus'
 % server errors
 % empty repo