# HG changeset patch
# User Thomas Arendsen Hein <thomas@intevation.de>
# Date 1283718731 -7200
#      Sun Sep 05 22:32:11 2010 +0200
# Branch stable
# Node ID 581066a319e521af173a380410f00098e49ddeb0
# Parent  d598d24a7e67017a65cc189897f25b25516d9363
verify: fix "missing revlog!" errors for revlog format v0 and add test

With revlog format v0 the .d files are empty if the only revision stored is an
empty file. Since Mercurial can no longer create format v0 repositories, but
still use it, add a script which creates a repository with a single empty file.
This can be used in other tests if wanted.

diff --git a/mercurial/verify.py b/mercurial/verify.py
--- a/mercurial/verify.py
+++ b/mercurial/verify.py
@@ -199,7 +199,7 @@
     for f, f2, size in repo.store.datafiles():
         if not f:
             err(None, _("cannot decode filename '%s'") % f2)
-        elif size > 0:
+        elif size > 0 or not revlogv1:
             storefiles.add(f)
 
     files = sorted(set(filenodes) | set(filelinkrevs))
diff --git a/tests/revlog-formatv0.py b/tests/revlog-formatv0.py
new file mode 100755
--- /dev/null
+++ b/tests/revlog-formatv0.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+# Copyright 2010 Intevation GmbH
+# Author(s):
+# Thomas Arendsen Hein <thomas@intevation.de>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2 or any later version.
+
+"""Create a Mercurial repository in revlog format 0
+
+changeset:   0:a1ef0b125355
+tag:         tip
+user:        user
+date:        Thu Jan 01 00:00:00 1970 +0000
+files:       empty
+description:
+empty file
+"""
+
+import os, sys
+
+files = [
+    ('formatv0/.hg/00changelog.i',
+     '000000000000004400000000000000000000000000000000000000'
+     '000000000000000000000000000000000000000000000000000000'
+     '0000a1ef0b125355d27765928be600cfe85784284ab3'),
+    ('formatv0/.hg/00changelog.d',
+     '756163613935613961356635353036303562366138343738336237'
+     '61623536363738616436356635380a757365720a3020300a656d70'
+     '74790a0a656d7074792066696c65'),
+    ('formatv0/.hg/00manifest.i',
+     '000000000000003000000000000000000000000000000000000000'
+     '000000000000000000000000000000000000000000000000000000'
+     '0000aca95a9a5f550605b6a84783b7ab56678ad65f58'),
+    ('formatv0/.hg/00manifest.d',
+     '75656d707479006238306465356431333837353835343163356630'
+     '35323635616431343461623966613836643164620a'),
+    ('formatv0/.hg/data/empty.i',
+     '000000000000000000000000000000000000000000000000000000'
+     '000000000000000000000000000000000000000000000000000000'
+     '0000b80de5d138758541c5f05265ad144ab9fa86d1db'),
+    ('formatv0/.hg/data/empty.d',
+     ''),
+]
+
+def makedirs(name):
+    """recursive directory creation"""
+    parent = os.path.dirname(name)
+    if parent:
+        makedirs(parent)
+    os.mkdir(name)
+
+makedirs(os.path.join(*'formatv0/.hg/data'.split('/')))
+
+for name, data in files:
+    f = open(name, 'wb')
+    f.write(data.decode('hex'))
+    f.close()
+
+sys.exit(0)
diff --git a/tests/test-verify b/tests/test-verify
--- a/tests/test-verify
+++ b/tests/test-verify
@@ -48,4 +48,12 @@
 echo % verify
 hg verify
 
+cd ..
+
+echo % test revlog format 0
+
+"$TESTDIR/revlog-formatv0.py"
+cd formatv0
+hg verify
+
 exit 0
diff --git a/tests/test-verify.out b/tests/test-verify.out
--- a/tests/test-verify.out
+++ b/tests/test-verify.out
@@ -50,3 +50,10 @@
 1 warnings encountered!
 1 integrity errors encountered!
 (first damaged changeset appears to be 0)
+% test revlog format 0
+repository uses revlog format 0
+checking changesets
+checking manifests
+crosschecking files in changesets and manifests
+checking files
+1 files, 1 changesets, 1 total revisions