localrepo: use dirstate savebackup instead of handling dirstate file manually
This is one step towards having dirstate manage its own storage. It will
be useful for the implementation of sql dirstate [1].
This introduced a small test change: now we always write the dirstate before
saving backup so in some cases where dirstate file didn't exist yet
savebackup can create it.
[1] https://www.mercurial-scm.org/wiki/SQLDirstatePlan
--- a/mercurial/localrepo.py Fri May 13 13:30:08 2016 -0700
+++ b/mercurial/localrepo.py Wed May 11 14:18:52 2016 -0700
@@ -1012,9 +1012,6 @@
_("abandoned transaction found"),
hint=_("run 'hg recover' to clean up transaction"))
- # make journal.dirstate contain in-memory changes at this point
- self.dirstate.write(None)
-
idbase = "%.40f#%f" % (random.random(), time.time())
txnid = 'TXN:' + util.sha1(idbase).hexdigest()
self.hook('pretxnopen', throw=True, txnname=desc, txnid=txnid)
@@ -1099,8 +1096,7 @@
return [(vfs, undoname(x)) for vfs, x in self._journalfiles()]
def _writejournal(self, desc):
- self.vfs.write("journal.dirstate",
- self.vfs.tryread("dirstate"))
+ self.dirstate.savebackup(None, prefix='journal.')
self.vfs.write("journal.branch",
encoding.fromlocal(self.dirstate.branch()))
self.vfs.write("journal.desc",
--- a/tests/test-inherit-mode.t Fri May 13 13:30:08 2016 -0700
+++ b/tests/test-inherit-mode.t Wed May 11 14:18:52 2016 -0700
@@ -117,6 +117,7 @@
00660 ../push/.hg/cache/branch2-base
00660 ../push/.hg/cache/rbc-names-v1
00660 ../push/.hg/cache/rbc-revs-v1
+ 00660 ../push/.hg/dirstate
00660 ../push/.hg/requires
00770 ../push/.hg/store/
00660 ../push/.hg/store/00changelog.i