largefiles: use "ui.configlist()" to get largefiles.patterns configuration

current lfconvert implementation uses combination of "ui.config()" and
"str.split(' ')" to get largefiles.patterns configuration.

but it can not handle multiline configuration in hgrc files correctly.

lfconvert should use "ui.configlist()" instead of it, as same as
override_add does.

hgext/largefiles/lfcommands.py

@@ -1,477 +1,475 b''
 # Copyright 2009-2010 Gregory P. Ward
 # Copyright 2009-2010 Intelerad Medical Systems Incorporated
 # Copyright 2010-2011 Fog Creek Software
 # Copyright 2010-2011 Unity Technologies
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 '''High-level command function for lfconvert, plus the cmdtable.'''
 
 import os
 import shutil
 
 from mercurial import util, match as match_, hg, node, context, error
 from mercurial.i18n import _
 
 import lfutil
 import basestore
 
 # -- Commands ----------------------------------------------------------
 
 def lfconvert(ui, src, dest, *pats, **opts):
     '''convert a normal repository to a largefiles repository
 
     Convert repository SOURCE to a new repository DEST, identical to
     SOURCE except that certain files will be converted as largefiles:
     specifically, any file that matches any PATTERN *or* whose size is
     above the minimum size threshold is converted as a largefile. The
     size used to determine whether or not to track a file as a
     largefile is the size of the first version of the file. The
     minimum size can be specified either with --size or in
     configuration as ``largefiles.size``.
 
     After running this command you will need to make sure that
     largefiles is enabled anywhere you intend to push the new
     repository.
 
     Use --to-normal to convert largefiles back to normal files; after
     this, the DEST repository can be used without largefiles at all.'''
 
     if opts['to_normal']:
         tolfile = False
     else:
         tolfile = True
         size = lfutil.getminsize(ui, True, opts.get('size'), default=None)
 
     if not hg.islocal(src):
         raise util.Abort(_('%s is not a local Mercurial repo') % src)
     if not hg.islocal(dest):
         raise util.Abort(_('%s is not a local Mercurial repo') % dest)
 
     rsrc = hg.repository(ui, src)
     ui.status(_('initializing destination %s\n') % dest)
     rdst = hg.repository(ui, dest, create=True)
 
     success = False
     try:
         # Lock destination to prevent modification while it is converted to.
         # Don't need to lock src because we are just reading from its history
         # which can't change.
         dst_lock = rdst.lock()
 
         # Get a list of all changesets in the source.  The easy way to do this
         # is to simply walk the changelog, using changelog.nodesbewteen().
         # Take a look at mercurial/revlog.py:639 for more details.
         # Use a generator instead of a list to decrease memory usage
         ctxs = (rsrc[ctx] for ctx in rsrc.changelog.nodesbetween(None,
             rsrc.heads())[0])
         revmap = {node.nullid: node.nullid}
         if tolfile:
             lfiles = set()
             normalfiles = set()
             if not pats:
-                pats = ui.config(lfutil.longname, 'patterns', default=())
-                if pats:
-                    pats = pats.split(' ')
+                pats = ui.configlist(lfutil.longname, 'patterns', default=[])
             if pats:
                 matcher = match_.match(rsrc.root, '', list(pats))
             else:
                 matcher = None
 
             lfiletohash = {}
             for ctx in ctxs:
                 ui.progress(_('converting revisions'), ctx.rev(),
                     unit=_('revision'), total=rsrc['tip'].rev())
                 _lfconvert_addchangeset(rsrc, rdst, ctx, revmap,
                     lfiles, normalfiles, matcher, size, lfiletohash)
             ui.progress(_('converting revisions'), None)
 
             if os.path.exists(rdst.wjoin(lfutil.shortname)):
                 shutil.rmtree(rdst.wjoin(lfutil.shortname))
 
             for f in lfiletohash.keys():
                 if os.path.isfile(rdst.wjoin(f)):
                     os.unlink(rdst.wjoin(f))
                 try:
                     os.removedirs(os.path.dirname(rdst.wjoin(f)))
                 except OSError:
                     pass
 
             # If there were any files converted to largefiles, add largefiles
             # to the destination repository's requirements.
             if lfiles:
                 rdst.requirements.add('largefiles')
                 rdst._writerequirements()
         else:
             for ctx in ctxs:
                 ui.progress(_('converting revisions'), ctx.rev(),
                     unit=_('revision'), total=rsrc['tip'].rev())
                 _addchangeset(ui, rsrc, rdst, ctx, revmap)
 
             ui.progress(_('converting revisions'), None)
         success = True
     finally:
         if not success:
             # we failed, remove the new directory
             shutil.rmtree(rdst.root)
         dst_lock.release()
 
 def _addchangeset(ui, rsrc, rdst, ctx, revmap):
  # Convert src parents to dst parents
     parents = []
     for p in ctx.parents():
         parents.append(revmap[p.node()])
     while len(parents) < 2:
         parents.append(node.nullid)
 
     # Generate list of changed files
     files = set(ctx.files())
     if node.nullid not in parents:
         mc = ctx.manifest()
         mp1 = ctx.parents()[0].manifest()
         mp2 = ctx.parents()[1].manifest()
         files |= (set(mp1) | set(mp2)) - set(mc)
         for f in mc:
             if mc[f] != mp1.get(f, None) or mc[f] != mp2.get(f, None):
                 files.add(f)
 
     def getfilectx(repo, memctx, f):
         if lfutil.standin(f) in files:
             # if the file isn't in the manifest then it was removed
             # or renamed, raise IOError to indicate this
             try:
                 fctx = ctx.filectx(lfutil.standin(f))
             except error.LookupError:
                 raise IOError()
             renamed = fctx.renamed()
             if renamed:
                 renamed = lfutil.splitstandin(renamed[0])
 
             hash = fctx.data().strip()
             path = lfutil.findfile(rsrc, hash)
             ### TODO: What if the file is not cached?
             data = ''
             fd = None
             try:
                 fd = open(path, 'rb')
                 data = fd.read()
             finally:
                 if fd:
                     fd.close()
             return context.memfilectx(f, data, 'l' in fctx.flags(),
                                       'x' in fctx.flags(), renamed)
         else:
             try:
                 fctx = ctx.filectx(f)
             except error.LookupError:
                 raise IOError()
             renamed = fctx.renamed()
             if renamed:
                 renamed = renamed[0]
             data = fctx.data()
             if f == '.hgtags':
                 newdata = []
                 for line in data.splitlines():
                     id, name = line.split(' ', 1)
                     newdata.append('%s %s\n' % (node.hex(revmap[node.bin(id)]),
                         name))
                 data = ''.join(newdata)
             return context.memfilectx(f, data, 'l' in fctx.flags(),
                                       'x' in fctx.flags(), renamed)
 
     dstfiles = []
     for file in files:
         if lfutil.isstandin(file):
             dstfiles.append(lfutil.splitstandin(file))
         else:
             dstfiles.append(file)
     # Commit
     mctx = context.memctx(rdst, parents, ctx.description(), dstfiles,
                           getfilectx, ctx.user(), ctx.date(), ctx.extra())
     ret = rdst.commitctx(mctx)
     rdst.dirstate.setparents(ret)
     revmap[ctx.node()] = rdst.changelog.tip()
 
 def _lfconvert_addchangeset(rsrc, rdst, ctx, revmap, lfiles, normalfiles,
         matcher, size, lfiletohash):
     # Convert src parents to dst parents
     parents = []
     for p in ctx.parents():
         parents.append(revmap[p.node()])
     while len(parents) < 2:
         parents.append(node.nullid)
 
     # Generate list of changed files
     files = set(ctx.files())
     if node.nullid not in parents:
         mc = ctx.manifest()
         mp1 = ctx.parents()[0].manifest()
         mp2 = ctx.parents()[1].manifest()
         files |= (set(mp1) | set(mp2)) - set(mc)
         for f in mc:
             if mc[f] != mp1.get(f, None) or mc[f] != mp2.get(f, None):
                 files.add(f)
 
     dstfiles = []
     for f in files:
         if f not in lfiles and f not in normalfiles:
             islfile = _islfile(f, ctx, matcher, size)
             # If this file was renamed or copied then copy
             # the lfileness of its predecessor
             if f in ctx.manifest():
                 fctx = ctx.filectx(f)
                 renamed = fctx.renamed()
                 renamedlfile = renamed and renamed[0] in lfiles
                 islfile |= renamedlfile
                 if 'l' in fctx.flags():
                     if renamedlfile:
                         raise util.Abort(
                             _('renamed/copied largefile %s becomes symlink')
                             % f)
                     islfile = False
             if islfile:
                 lfiles.add(f)
             else:
                 normalfiles.add(f)
 
         if f in lfiles:
             dstfiles.append(lfutil.standin(f))
             # largefile in manifest if it has not been removed/renamed
             if f in ctx.manifest():
                 if 'l' in ctx.filectx(f).flags():
                     if renamed and renamed[0] in lfiles:
                         raise util.Abort(_('largefile %s becomes symlink') % f)
 
                 # largefile was modified, update standins
                 fullpath = rdst.wjoin(f)
                 util.makedirs(os.path.dirname(fullpath))
                 m = util.sha1('')
                 m.update(ctx[f].data())
                 hash = m.hexdigest()
                 if f not in lfiletohash or lfiletohash[f] != hash:
                     try:
                         fd = open(fullpath, 'wb')
                         fd.write(ctx[f].data())
                     finally:
                         if fd:
                             fd.close()
                     executable = 'x' in ctx[f].flags()
                     os.chmod(fullpath, lfutil.getmode(executable))
                     lfutil.writestandin(rdst, lfutil.standin(f), hash,
                         executable)
                     lfiletohash[f] = hash
         else:
             # normal file
             dstfiles.append(f)
 
     def getfilectx(repo, memctx, f):
         if lfutil.isstandin(f):
             # if the file isn't in the manifest then it was removed
             # or renamed, raise IOError to indicate this
             srcfname = lfutil.splitstandin(f)
             try:
                 fctx = ctx.filectx(srcfname)
             except error.LookupError:
                 raise IOError()
             renamed = fctx.renamed()
             if renamed:
                 # standin is always a largefile because largefile-ness
                 # doesn't change after rename or copy
                 renamed = lfutil.standin(renamed[0])
 
             return context.memfilectx(f, lfiletohash[srcfname] + '\n', 'l' in
                 fctx.flags(), 'x' in fctx.flags(), renamed)
         else:
             try:
                 fctx = ctx.filectx(f)
             except error.LookupError:
                 raise IOError()
             renamed = fctx.renamed()
             if renamed:
                 renamed = renamed[0]
 
             data = fctx.data()
             if f == '.hgtags':
                 newdata = []
                 for line in data.splitlines():
                     id, name = line.split(' ', 1)
                     newdata.append('%s %s\n' % (node.hex(revmap[node.bin(id)]),
                         name))
                 data = ''.join(newdata)
             return context.memfilectx(f, data, 'l' in fctx.flags(),
                                       'x' in fctx.flags(), renamed)
 
     # Commit
     mctx = context.memctx(rdst, parents, ctx.description(), dstfiles,
                           getfilectx, ctx.user(), ctx.date(), ctx.extra())
     ret = rdst.commitctx(mctx)
     rdst.dirstate.setparents(ret)
     revmap[ctx.node()] = rdst.changelog.tip()
 
 def _islfile(file, ctx, matcher, size):
     '''Return true if file should be considered a largefile, i.e.
     matcher matches it or it is larger than size.'''
     # never store special .hg* files as largefiles
     if file == '.hgtags' or file == '.hgignore' or file == '.hgsigs':
         return False
     if matcher and matcher(file):
         return True
     try:
         return ctx.filectx(file).size() >= size * 1024 * 1024
     except error.LookupError:
         return False
 
 def uploadlfiles(ui, rsrc, rdst, files):
     '''upload largefiles to the central store'''
 
     if not files:
         return
 
     store = basestore._openstore(rsrc, rdst, put=True)
 
     at = 0
     files = filter(lambda h: not store.exists(h), files)
     for hash in files:
         ui.progress(_('uploading largefiles'), at, unit='largefile',
                     total=len(files))
         source = lfutil.findfile(rsrc, hash)
         if not source:
             raise util.Abort(_('largefile %s missing from store'
                                ' (needs to be uploaded)') % hash)
         # XXX check for errors here
         store.put(source, hash)
         at += 1
     ui.progress(_('uploading largefiles'), None)
 
 def verifylfiles(ui, repo, all=False, contents=False):
     '''Verify that every big file revision in the current changeset
     exists in the central store.  With --contents, also verify that
     the contents of each big file revision are correct (SHA-1 hash
     matches the revision ID).  With --all, check every changeset in
     this repository.'''
     if all:
         # Pass a list to the function rather than an iterator because we know a
         # list will work.
         revs = range(len(repo))
     else:
         revs = ['.']
 
     store = basestore._openstore(repo)
     return store.verify(revs, contents=contents)
 
 def cachelfiles(ui, repo, node):
     '''cachelfiles ensures that all largefiles needed by the specified revision
     are present in the repository's largefile cache.
 
     returns a tuple (cached, missing).  cached is the list of files downloaded
     by this operation; missing is the list of files that were needed but could
     not be found.'''
     lfiles = lfutil.listlfiles(repo, node)
     toget = []
 
     for lfile in lfiles:
         expectedhash = repo[node][lfutil.standin(lfile)].data().strip()
         # if it exists and its hash matches, it might have been locally
         # modified before updating and the user chose 'local'.  in this case,
         # it will not be in any store, so don't look for it.
         if ((not os.path.exists(repo.wjoin(lfile)) or
              expectedhash != lfutil.hashfile(repo.wjoin(lfile))) and
             not lfutil.findfile(repo, expectedhash)):
             toget.append((lfile, expectedhash))
 
     if toget:
         store = basestore._openstore(repo)
         ret = store.get(toget)
         return ret
 
     return ([], [])
 
 def updatelfiles(ui, repo, filelist=None, printmessage=True):
     wlock = repo.wlock()
     try:
         lfdirstate = lfutil.openlfdirstate(ui, repo)
         lfiles = set(lfutil.listlfiles(repo)) | set(lfdirstate)
 
         if filelist is not None:
             lfiles = [f for f in lfiles if f in filelist]
 
         printed = False
         if printmessage and lfiles:
             ui.status(_('getting changed largefiles\n'))
             printed = True
             cachelfiles(ui, repo, '.')
 
         updated, removed = 0, 0
         for i in map(lambda f: _updatelfile(repo, lfdirstate, f), lfiles):
             # increment the appropriate counter according to _updatelfile's
             # return value
             updated += i > 0 and i or 0
             removed -= i < 0 and i or 0
             if printmessage and (removed or updated) and not printed:
                 ui.status(_('getting changed largefiles\n'))
                 printed = True
 
         lfdirstate.write()
         if printed and printmessage:
             ui.status(_('%d largefiles updated, %d removed\n') % (updated,
                 removed))
     finally:
         wlock.release()
 
 def _updatelfile(repo, lfdirstate, lfile):
     '''updates a single largefile and copies the state of its standin from
     the repository's dirstate to its state in the lfdirstate.
 
     returns 1 if the file was modified, -1 if the file was removed, 0 if the
     file was unchanged, and None if the needed largefile was missing from the
     cache.'''
     ret = 0
     abslfile = repo.wjoin(lfile)
     absstandin = repo.wjoin(lfutil.standin(lfile))
     if os.path.exists(absstandin):
         if os.path.exists(absstandin+'.orig'):
             shutil.copyfile(abslfile, abslfile+'.orig')
         expecthash = lfutil.readstandin(repo, lfile)
         if (expecthash != '' and
             (not os.path.exists(abslfile) or
              expecthash != lfutil.hashfile(abslfile))):
             if not lfutil.copyfromcache(repo, expecthash, lfile):
                 # use normallookup() to allocate entry in largefiles dirstate,
                 # because lack of it misleads lfiles_repo.status() into
                 # recognition that such cache missing files are REMOVED.
                 lfdirstate.normallookup(lfile)
                 return None # don't try to set the mode
             ret = 1
         mode = os.stat(absstandin).st_mode
         if mode != os.stat(abslfile).st_mode:
             os.chmod(abslfile, mode)
             ret = 1
     else:
         if os.path.exists(abslfile):
             os.unlink(abslfile)
             ret = -1
     state = repo.dirstate[lfutil.standin(lfile)]
     if state == 'n':
         lfdirstate.normal(lfile)
     elif state == 'r':
         lfdirstate.remove(lfile)
     elif state == 'a':
         lfdirstate.add(lfile)
     elif state == '?':
         lfdirstate.drop(lfile)
     return ret
 
 # -- hg commands declarations ------------------------------------------------
 
 cmdtable = {
     'lfconvert': (lfconvert,
                   [('s', 'size', '',
                     _('minimum size (MB) for files to be converted '
                       'as largefiles'),
                     'SIZE'),
                   ('', 'to-normal', False,
                    _('convert from a largefiles repo to a normal repo')),
                   ],
                   _('hg lfconvert SOURCE DEST [FILE ...]')),
     }

tests/test-lfconvert.t

@@ -1,232 +1,233 b''
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > largefiles =
   > share =
   > graphlog =
   > [largefiles]
   > minsize = 0.5
-  > patterns = **.dat
+  > patterns = **.other
+  >     **.dat
   > EOF
 
 "lfconvert" works
   $ hg init bigfile-repo
   $ cd bigfile-repo
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > largefiles = !
   > EOF
   $ mkdir sub
   $ dd if=/dev/zero bs=1k count=256 > large 2> /dev/null
   $ echo normal > normal1
   $ echo alsonormal > sub/normal2
   $ dd if=/dev/zero bs=1k count=10 > sub/maybelarge.dat 2> /dev/null
   $ hg addremove
   adding large
   adding normal1
   adding sub/maybelarge.dat
   adding sub/normal2
   $ hg commit -m"add large, normal1" large normal1
   $ hg commit -m"add sub/*" sub
   $ [ -d .hg/largefiles ] && echo fail || echo pass
   pass
   $ cd ..
   $ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
   initializing destination largefiles-repo
 
 "lfconvert" converts content correctly
   $ cd largefiles-repo
   $ hg up
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   getting changed largefiles
   2 largefiles updated, 0 removed
   $ hg locate
   .hglf/large
   .hglf/sub/maybelarge.dat
   normal1
   sub/normal2
   $ cat normal1
   normal
   $ cat sub/normal2
   alsonormal
   $ "$TESTDIR/md5sum.py" large sub/maybelarge.dat
   ec87a838931d4d5d2e94a04644788a55  large
   1276481102f218c981e0324180bafd9f  sub/maybelarge.dat
 
 "lfconvert" adds 'largefiles' to .hg/requires.
   $ cat .hg/requires
   largefiles
   revlogv1
   fncache
   store
   dotencode
 
 "lfconvert" includes a newline at the end of the standin files.
   $ cat .hglf/large .hglf/sub/maybelarge.dat
   2e000fa7e85759c7f4c254d4d9c33ef481e459a7
   34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
   $ cd ..
 
 add some changesets to rename/remove/merge
   $ cd bigfile-repo
   $ hg mv -q sub stuff
   $ hg commit -m"rename sub/ to stuff/"
   $ hg update -q 1
   $ echo blah >> normal3
   $ echo blah >> sub/normal2
   $ echo blah >> sub/maybelarge.dat
   $ "$TESTDIR/md5sum.py" sub/maybelarge.dat
   1dd0b99ff80e19cff409702a1d3f5e15  sub/maybelarge.dat
   $ hg commit -A -m"add normal3, modify sub/*"
   adding normal3
   created new head
   $ hg rm large normal3
   $ hg commit -q -m"remove large, normal3"
   $ hg merge
   merging sub/maybelarge.dat and stuff/maybelarge.dat to stuff/maybelarge.dat
   warning: $TESTTMP/bigfile-repo/stuff/maybelarge.dat looks like a binary file.
   merging stuff/maybelarge.dat failed!
   merging sub/normal2 and stuff/normal2 to stuff/normal2
   0 files updated, 1 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
   [1]
   $ hg cat -r . sub/maybelarge.dat > stuff/maybelarge.dat
   $ hg resolve -m stuff/maybelarge.dat
   $ hg commit -m"merge"
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   @    5:4884f215abda  merge
   |\
   | o  4:7285f817b77e  remove large, normal3
   | |
   | o  3:67e3892e3534  add normal3, modify sub/*
   | |
   o |  2:c96c8beb5d56  rename sub/ to stuff/
   |/
   o  1:020c65d24e11  add sub/*
   |
   o  0:117b8328f97a  add large, normal1
   
   $ cd ..
 
 lfconvert with rename, merge, and remove
   $ rm -rf largefiles-repo
   $ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
   initializing destination largefiles-repo
   $ cd largefiles-repo
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   o    5:8e05f5f2b77e  merge
   |\
   | o  4:a5a02de7a8e4  remove large, normal3
   | |
   | o  3:55759520c76f  add normal3, modify sub/*
   | |
   o |  2:261ad3f3f037  rename sub/ to stuff/
   |/
   o  1:334e5237836d  add sub/*
   |
   o  0:d4892ec57ce2  add large, normal1
   
   $ hg locate -r 2
   .hglf/large
   .hglf/stuff/maybelarge.dat
   normal1
   stuff/normal2
   $ hg locate -r 3
   .hglf/large
   .hglf/sub/maybelarge.dat
   normal1
   normal3
   sub/normal2
   $ hg locate -r 4
   .hglf/sub/maybelarge.dat
   normal1
   sub/normal2
   $ hg locate -r 5
   .hglf/stuff/maybelarge.dat
   normal1
   stuff/normal2
   $ hg update
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   getting changed largefiles
   1 largefiles updated, 0 removed
   $ cat stuff/normal2
   alsonormal
   blah
   $ "$TESTDIR/md5sum.py" stuff/maybelarge.dat
   1dd0b99ff80e19cff409702a1d3f5e15  stuff/maybelarge.dat
   $ cat .hglf/stuff/maybelarge.dat
   76236b6a2c6102826c61af4297dd738fb3b1de38
   $ cd ..
 
 "lfconvert" error cases
   $ hg lfconvert http://localhost/foo foo
   abort: http://localhost/foo is not a local Mercurial repo
   [255]
   $ hg lfconvert foo ssh://localhost/foo
   abort: ssh://localhost/foo is not a local Mercurial repo
   [255]
   $ hg lfconvert nosuchrepo foo
   abort: repository nosuchrepo not found!
   [255]
   $ hg share -q -U bigfile-repo shared
   $ printf 'bogus' > shared/.hg/sharedpath
   $ hg lfconvert shared foo
   abort: .hg/sharedpath points to nonexistent directory $TESTTMP/bogus!
   [255]
   $ hg lfconvert bigfile-repo largefiles-repo
   initializing destination largefiles-repo
   abort: repository largefiles-repo already exists!
   [255]
 
 add another largefile to the new largefiles repo
   $ cd largefiles-repo
   $ dd if=/dev/zero bs=1k count=1k > anotherlarge 2> /dev/null
   $ hg add --lfsize=1 anotherlarge
   $ hg commit -m "add anotherlarge (should be a largefile)"
   $ cat .hglf/anotherlarge
   3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3
   $ cd ..
 
 round-trip: converting back to a normal (non-largefiles) repo with
 "lfconvert --to-normal" should give the same as ../bigfile-repo
   $ cd largefiles-repo
   $ hg lfconvert --to-normal . ../normal-repo
   initializing destination ../normal-repo
   $ cd ../normal-repo
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > largefiles = !
   > EOF
 
 # Hmmm: the changeset ID for rev 5 is different from the original
 # normal repo (../bigfile-repo), because the changelog filelist
 # differs between the two incarnations of rev 5: this repo includes
 # 'large' in the list, but ../bigfile-repo does not. Since rev 5
 # removes 'large' relative to the first parent in both repos, it seems
 # to me that lfconvert is doing a *better* job than
 # "hg remove" + "hg merge" + "hg commit".
 #  $ hg -R ../bigfile-repo debugdata -c 5
 #  $ hg debugdata -c 5
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   o  6:1635824e6f59  add anotherlarge (should be a largefile)
   |
   o    5:7215f8deeaaf  merge
   |\
   | o  4:7285f817b77e  remove large, normal3
   | |
   | o  3:67e3892e3534  add normal3, modify sub/*
   | |
   o |  2:c96c8beb5d56  rename sub/ to stuff/
   |/
   o  1:020c65d24e11  add sub/*
   |
   o  0:117b8328f97a  add large, normal1
   
   $ hg update
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg locate
   anotherlarge
   normal1
   stuff/maybelarge.dat
   stuff/normal2
   $ [ -d .hg/largefiles ] && echo fail || echo pass
   pass