Mercurial > hg
view mercurial/repair.py @ 20222:228ae760942f
pull: run findcommon incoming on unfiltered repo
The discovery is not yet ready for filtered repo. Pull was using filtered for
its discovery which is wrong. It worked by dumb luck because discovery mainly
use funtion that does not respect the filtering.
Trying to makes discovery work on filtered repo revealed this bug.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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date | Sat, 16 Nov 2013 11:53:44 -0500 |
parents | 5fc2ae1c631b |
children | f49d60fa40a5 |
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# repair.py - functions for repository repair for mercurial # # Copyright 2005, 2006 Chris Mason <mason@suse.com> # Copyright 2007 Matt Mackall # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from mercurial import changegroup from mercurial.node import short from mercurial.i18n import _ import os import errno def _bundle(repo, bases, heads, node, suffix, compress=True): """create a bundle with the specified revisions as a backup""" cg = repo.changegroupsubset(bases, heads, 'strip') backupdir = repo.join("strip-backup") if not os.path.isdir(backupdir): os.mkdir(backupdir) name = os.path.join(backupdir, "%s-%s.hg" % (short(node), suffix)) if compress: bundletype = "HG10BZ" else: bundletype = "HG10UN" return changegroup.writebundle(cg, name, bundletype) def _collectfiles(repo, striprev): """find out the filelogs affected by the strip""" files = set() for x in xrange(striprev, len(repo)): files.update(repo[x].files()) return sorted(files) def _collectbrokencsets(repo, files, striprev): """return the changesets which will be broken by the truncation""" s = set() def collectone(revlog): _, brokenset = revlog.getstrippoint(striprev) s.update([revlog.linkrev(r) for r in brokenset]) collectone(repo.manifest) for fname in files: collectone(repo.file(fname)) return s def strip(ui, repo, nodelist, backup="all", topic='backup'): repo = repo.unfiltered() repo.destroying() cl = repo.changelog # TODO handle undo of merge sets if isinstance(nodelist, str): nodelist = [nodelist] striplist = [cl.rev(node) for node in nodelist] striprev = min(striplist) keeppartialbundle = backup == 'strip' # Some revisions with rev > striprev may not be descendants of striprev. # We have to find these revisions and put them in a bundle, so that # we can restore them after the truncations. # To create the bundle we use repo.changegroupsubset which requires # the list of heads and bases of the set of interesting revisions. # (head = revision in the set that has no descendant in the set; # base = revision in the set that has no ancestor in the set) tostrip = set(striplist) for rev in striplist: for desc in cl.descendants([rev]): tostrip.add(desc) files = _collectfiles(repo, striprev) saverevs = _collectbrokencsets(repo, files, striprev) # compute heads saveheads = set(saverevs) for r in xrange(striprev + 1, len(cl)): if r not in tostrip: saverevs.add(r) saveheads.difference_update(cl.parentrevs(r)) saveheads.add(r) saveheads = [cl.node(r) for r in saveheads] # compute base nodes if saverevs: descendants = set(cl.descendants(saverevs)) saverevs.difference_update(descendants) savebases = [cl.node(r) for r in saverevs] stripbases = [cl.node(r) for r in tostrip] # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but # is much faster newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip) if newbmtarget: newbmtarget = repo[newbmtarget[0]].node() else: newbmtarget = '.' bm = repo._bookmarks updatebm = [] for m in bm: rev = repo[bm[m]].rev() if rev in tostrip: updatebm.append(m) # create a changegroup for all the branches we need to keep backupfile = None if backup == "all": backupfile = _bundle(repo, stripbases, cl.heads(), node, topic) repo.ui.status(_("saved backup bundle to %s\n") % backupfile) repo.ui.log("backupbundle", "saved backup bundle to %s\n", backupfile) if saveheads or savebases: # do not compress partial bundle if we remove it from disk later chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', compress=keeppartialbundle) mfst = repo.manifest tr = repo.transaction("strip") offset = len(tr.entries) try: tr.startgroup() cl.strip(striprev, tr) mfst.strip(striprev, tr) for fn in files: repo.file(fn).strip(striprev, tr) tr.endgroup() try: for i in xrange(offset, len(tr.entries)): file, troffset, ignore = tr.entries[i] repo.sopener(file, 'a').truncate(troffset) tr.close() except: # re-raises tr.abort() raise if saveheads or savebases: ui.note(_("adding branch\n")) f = open(chgrpfile, "rb") gen = changegroup.readbundle(f, chgrpfile) if not repo.ui.verbose: # silence internal shuffling chatter repo.ui.pushbuffer() repo.addchangegroup(gen, 'strip', 'bundle:' + chgrpfile, True) if not repo.ui.verbose: repo.ui.popbuffer() f.close() if not keeppartialbundle: os.unlink(chgrpfile) # remove undo files for undofile in repo.undofiles(): try: os.unlink(undofile) except OSError, e: if e.errno != errno.ENOENT: ui.warn(_('error removing %s: %s\n') % (undofile, str(e))) for m in updatebm: bm[m] = repo[newbmtarget].node() bm.write() except: # re-raises if backupfile: ui.warn(_("strip failed, full bundle stored in '%s'\n") % backupfile) elif saveheads: ui.warn(_("strip failed, partial bundle stored in '%s'\n") % chgrpfile) raise repo.destroyed()