shelve: make unshelve be able to abort in any case

hgext/shelve.py

@@ -1,908 +1,927
 # shelve.py - save/restore working directory state
 #
 # Copyright 2013 Facebook, Inc.
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 """save and restore changes to the working directory
 
 The "hg shelve" command saves changes made to the working directory
 and reverts those changes, resetting the working directory to a clean
 state.
 
 Later on, the "hg unshelve" command restores the changes saved by "hg
 shelve". Changes can be restored even after updating to a different
 parent, in which case Mercurial's merge machinery will resolve any
 conflicts if necessary.
 
 You can have more than one shelved change outstanding at a time; each
 shelved change has a distinct name. For details, see the help for "hg
 shelve".
 """
 from __future__ import absolute_import
 
 import collections
 import errno
 import itertools
 
 from mercurial.i18n import _
 from mercurial import (
     bundle2,
     bundlerepo,
     changegroup,
     cmdutil,
     commands,
     error,
     exchange,
     hg,
     lock as lockmod,
     mdiff,
     merge,
     node as nodemod,
     patch,
     phases,
     repair,
     scmutil,
     templatefilters,
     util,
 )
 
 from . import (
     rebase,
 )
 
 cmdtable = {}
 command = cmdutil.command(cmdtable)
 # Note for extension authors: ONLY specify testedwith = 'internal' for
 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
 # be specifying the version(s) of Mercurial they are tested with, or
 # leave the attribute unspecified.
 testedwith = 'internal'
 
 backupdir = 'shelve-backup'
 shelvedir = 'shelved'
 
 class shelvedfile(object):
     """Helper for the file storing a single shelve
 
     Handles common functions on shelve files (.hg/.patch) using
     the vfs layer"""
     def __init__(self, repo, name, filetype=None):
         self.repo = repo
         self.name = name
         self.vfs = scmutil.vfs(repo.join(shelvedir))
         self.backupvfs = scmutil.vfs(repo.join(backupdir))
         self.ui = self.repo.ui
         if filetype:
             self.fname = name + '.' + filetype
         else:
             self.fname = name
 
     def exists(self):
         return self.vfs.exists(self.fname)
 
     def filename(self):
         return self.vfs.join(self.fname)
 
     def backupfilename(self):
         def gennames(base):
             yield base
             base, ext = base.rsplit('.', 1)
             for i in itertools.count(1):
                 yield '%s-%d.%s' % (base, i, ext)
 
         name = self.backupvfs.join(self.fname)
         for n in gennames(name):
             if not self.backupvfs.exists(n):
                 return n
 
     def movetobackup(self):
         if not self.backupvfs.isdir():
             self.backupvfs.makedir()
         util.rename(self.filename(), self.backupfilename())
 
     def stat(self):
         return self.vfs.stat(self.fname)
 
     def opener(self, mode='rb'):
         try:
             return self.vfs(self.fname, mode)
         except IOError as err:
             if err.errno != errno.ENOENT:
                 raise
             raise error.Abort(_("shelved change '%s' not found") % self.name)
 
     def applybundle(self):
         fp = self.opener()
         try:
             gen = exchange.readbundle(self.repo.ui, fp, self.fname, self.vfs)
             if not isinstance(gen, bundle2.unbundle20):
                 gen.apply(self.repo, 'unshelve',
                           'bundle:' + self.vfs.join(self.fname),
                           targetphase=phases.secret)
             if isinstance(gen, bundle2.unbundle20):
                 bundle2.applybundle(self.repo, gen,
                                     self.repo.currenttransaction(),
                                     source='unshelve',
                                     url='bundle:' + self.vfs.join(self.fname))
         finally:
             fp.close()
 
     def bundlerepo(self):
         return bundlerepo.bundlerepository(self.repo.baseui, self.repo.root,
                                            self.vfs.join(self.fname))
     def writebundle(self, bases, node):
         cgversion = changegroup.safeversion(self.repo)
         if cgversion == '01':
             btype = 'HG10BZ'
             compression = None
         else:
             btype = 'HG20'
             compression = 'BZ'
 
         cg = changegroup.changegroupsubset(self.repo, bases, [node], 'shelve',
                                            version=cgversion)
         bundle2.writebundle(self.ui, cg, self.fname, btype, self.vfs,
                                 compression=compression)
 
 class shelvedstate(object):
     """Handle persistence during unshelving operations.
 
     Handles saving and restoring a shelved state. Ensures that different
     versions of a shelved state are possible and handles them appropriately.
     """
     _version = 1
     _filename = 'shelvedstate'
 
     @classmethod
     def load(cls, repo):
         fp = repo.vfs(cls._filename)
         try:
             version = int(fp.readline().strip())
 
             if version != cls._version:
                 raise error.Abort(_('this version of shelve is incompatible '
                                    'with the version used in this repo'))
             name = fp.readline().strip()
-            wctx = fp.readline().strip()
-            pendingctx = fp.readline().strip()
+            wctx = nodemod.bin(fp.readline().strip())
+            pendingctx = nodemod.bin(fp.readline().strip())
             parents = [nodemod.bin(h) for h in fp.readline().split()]
             stripnodes = [nodemod.bin(h) for h in fp.readline().split()]
             branchtorestore = fp.readline().strip()
+        except (ValueError, TypeError) as err:
+            raise error.CorruptedState(str(err))
         finally:
             fp.close()
 
-        obj = cls()
-        obj.name = name
-        obj.wctx = repo[nodemod.bin(wctx)]
-        obj.pendingctx = repo[nodemod.bin(pendingctx)]
-        obj.parents = parents
-        obj.stripnodes = stripnodes
-        obj.branchtorestore = branchtorestore
+        try:
+            obj = cls()
+            obj.name = name
+            obj.wctx = repo[wctx]
+            obj.pendingctx = repo[pendingctx]
+            obj.parents = parents
+            obj.stripnodes = stripnodes
+            obj.branchtorestore = branchtorestore
+        except error.RepoLookupError as err:
+            raise error.CorruptedState(str(err))
 
         return obj
 
     @classmethod
     def save(cls, repo, name, originalwctx, pendingctx, stripnodes,
              branchtorestore):
         fp = repo.vfs(cls._filename, 'wb')
         fp.write('%i\n' % cls._version)
         fp.write('%s\n' % name)
         fp.write('%s\n' % nodemod.hex(originalwctx.node()))
         fp.write('%s\n' % nodemod.hex(pendingctx.node()))
         fp.write('%s\n' %
                  ' '.join([nodemod.hex(p) for p in repo.dirstate.parents()]))
         fp.write('%s\n' %
                  ' '.join([nodemod.hex(n) for n in stripnodes]))
         fp.write('%s\n' % branchtorestore)
         fp.close()
 
     @classmethod
     def clear(cls, repo):
         util.unlinkpath(repo.join(cls._filename), ignoremissing=True)
 
 def cleanupoldbackups(repo):
     vfs = scmutil.vfs(repo.join(backupdir))
     maxbackups = repo.ui.configint('shelve', 'maxbackups', 10)
     hgfiles = [f for f in vfs.listdir() if f.endswith('.hg')]
     hgfiles = sorted([(vfs.stat(f).st_mtime, f) for f in hgfiles])
     if 0 < maxbackups and maxbackups < len(hgfiles):
         bordermtime = hgfiles[-maxbackups][0]
     else:
         bordermtime = None
     for mtime, f in hgfiles[:len(hgfiles) - maxbackups]:
         if mtime == bordermtime:
             # keep it, because timestamp can't decide exact order of backups
             continue
         base = f[:-3]
         for ext in 'hg patch'.split():
             try:
                 vfs.unlink(base + '.' + ext)
             except OSError as err:
                 if err.errno != errno.ENOENT:
                     raise
 
 def _aborttransaction(repo):
     '''Abort current transaction for shelve/unshelve, but keep dirstate
     '''
     tr = repo.currenttransaction()
     repo.dirstate.savebackup(tr, suffix='.shelve')
     tr.abort()
     repo.dirstate.restorebackup(None, suffix='.shelve')
 
 def createcmd(ui, repo, pats, opts):
     """subcommand that creates a new shelve"""
     with repo.wlock():
         cmdutil.checkunfinished(repo)
         return _docreatecmd(ui, repo, pats, opts)
 
 def _docreatecmd(ui, repo, pats, opts):
     def mutableancestors(ctx):
         """return all mutable ancestors for ctx (included)
 
         Much faster than the revset ancestors(ctx) & draft()"""
         seen = set([nodemod.nullrev])
         visit = collections.deque()
         visit.append(ctx)
         while visit:
             ctx = visit.popleft()
             yield ctx.node()
             for parent in ctx.parents():
                 rev = parent.rev()
                 if rev not in seen:
                     seen.add(rev)
                     if parent.mutable():
                         visit.append(parent)
 
     wctx = repo[None]
     parents = wctx.parents()
     if len(parents) > 1:
         raise error.Abort(_('cannot shelve while merging'))
     parent = parents[0]
     origbranch = wctx.branch()
 
     # we never need the user, so we use a generic user for all shelve operations
     user = 'shelve@localhost'
     label = repo._activebookmark or parent.branch() or 'default'
 
     # slashes aren't allowed in filenames, therefore we rename it
     label = label.replace('/', '_')
 
     def gennames():
         yield label
         for i in xrange(1, 100):
             yield '%s-%02d' % (label, i)
 
     if parent.node() != nodemod.nullid:
         desc = "changes to: %s" % parent.description().split('\n', 1)[0]
     else:
         desc = '(changes in empty repository)'
 
     if not opts.get('message'):
         opts['message'] = desc
 
     name = opts.get('name')
 
     lock = tr = None
     try:
         lock = repo.lock()
 
         # use an uncommitted transaction to generate the bundle to avoid
         # pull races. ensure we don't print the abort message to stderr.
         tr = repo.transaction('commit', report=lambda x: None)
 
         if name:
             if shelvedfile(repo, name, 'hg').exists():
                 raise error.Abort(_("a shelved change named '%s' already exists"
                                    ) % name)
         else:
             for n in gennames():
                 if not shelvedfile(repo, n, 'hg').exists():
                     name = n
                     break
             else:
                 raise error.Abort(_("too many shelved changes named '%s'") %
                                  label)
 
         # ensure we are not creating a subdirectory or a hidden file
         if '/' in name or '\\' in name:
             raise error.Abort(_('shelved change names may not contain slashes'))
         if name.startswith('.'):
             raise error.Abort(_("shelved change names may not start with '.'"))
         interactive = opts.get('interactive', False)
         includeunknown = (opts.get('unknown', False) and
                           not opts.get('addremove', False))
 
         extra={}
         if includeunknown:
             s = repo.status(match=scmutil.match(repo[None], pats, opts),
                             unknown=True)
             if s.unknown:
                 extra['shelve_unknown'] = '\0'.join(s.unknown)
                 repo[None].add(s.unknown)
 
         if _iswctxonnewbranch(repo) and not _isbareshelve(pats, opts):
             # In non-bare shelve we don't store newly created branch
             # at bundled commit
             repo.dirstate.setbranch(repo['.'].branch())
 
         def commitfunc(ui, repo, message, match, opts):
             hasmq = util.safehasattr(repo, 'mq')
             if hasmq:
                 saved, repo.mq.checkapplied = repo.mq.checkapplied, False
             backup = repo.ui.backupconfig('phases', 'new-commit')
             try:
                 repo.ui. setconfig('phases', 'new-commit', phases.secret)
                 editor = cmdutil.getcommiteditor(editform='shelve.shelve',
                                                  **opts)
                 return repo.commit(message, user, opts.get('date'), match,
                                    editor=editor, extra=extra)
             finally:
                 repo.ui.restoreconfig(backup)
                 if hasmq:
                     repo.mq.checkapplied = saved
 
         def interactivecommitfunc(ui, repo, *pats, **opts):
             match = scmutil.match(repo['.'], pats, {})
             message = opts['message']
             return commitfunc(ui, repo, message, match, opts)
         if not interactive:
             node = cmdutil.commit(ui, repo, commitfunc, pats, opts)
         else:
             node = cmdutil.dorecord(ui, repo, interactivecommitfunc, None,
                                     False, cmdutil.recordfilter, *pats, **opts)
         if not node:
             stat = repo.status(match=scmutil.match(repo[None], pats, opts))
             if stat.deleted:
                 ui.status(_("nothing changed (%d missing files, see "
                             "'hg status')\n") % len(stat.deleted))
             else:
                 ui.status(_("nothing changed\n"))
             return 1
 
         bases = list(mutableancestors(repo[node]))
         shelvedfile(repo, name, 'hg').writebundle(bases, node)
         cmdutil.export(repo, [node],
                        fp=shelvedfile(repo, name, 'patch').opener('wb'),
                        opts=mdiff.diffopts(git=True))
 
 
         if ui.formatted():
             desc = util.ellipsis(desc, ui.termwidth())
         ui.status(_('shelved as %s\n') % name)
         hg.update(repo, parent.node())
         if origbranch != repo['.'].branch() and not _isbareshelve(pats, opts):
             repo.dirstate.setbranch(origbranch)
 
         _aborttransaction(repo)
     finally:
         lockmod.release(tr, lock)
 
 def _isbareshelve(pats, opts):
     return (not pats
             and not opts.get('interactive', False)
             and not opts.get('include', False)
             and not opts.get('exclude', False))
 
 def _iswctxonnewbranch(repo):
     return repo[None].branch() != repo['.'].branch()
 
 def cleanupcmd(ui, repo):
     """subcommand that deletes all shelves"""
 
     with repo.wlock():
         for (name, _type) in repo.vfs.readdir(shelvedir):
             suffix = name.rsplit('.', 1)[-1]
             if suffix in ('hg', 'patch'):
                 shelvedfile(repo, name).movetobackup()
             cleanupoldbackups(repo)
 
 def deletecmd(ui, repo, pats):
     """subcommand that deletes a specific shelve"""
     if not pats:
         raise error.Abort(_('no shelved changes specified!'))
     with repo.wlock():
         try:
             for name in pats:
                 for suffix in 'hg patch'.split():
                     shelvedfile(repo, name, suffix).movetobackup()
             cleanupoldbackups(repo)
         except OSError as err:
             if err.errno != errno.ENOENT:
                 raise
             raise error.Abort(_("shelved change '%s' not found") % name)
 
 def listshelves(repo):
     """return all shelves in repo as list of (time, filename)"""
     try:
         names = repo.vfs.readdir(shelvedir)
     except OSError as err:
         if err.errno != errno.ENOENT:
             raise
         return []
     info = []
     for (name, _type) in names:
         pfx, sfx = name.rsplit('.', 1)
         if not pfx or sfx != 'patch':
             continue
         st = shelvedfile(repo, name).stat()
         info.append((st.st_mtime, shelvedfile(repo, pfx).filename()))
     return sorted(info, reverse=True)
 
 def listcmd(ui, repo, pats, opts):
     """subcommand that displays the list of shelves"""
     pats = set(pats)
     width = 80
     if not ui.plain():
         width = ui.termwidth()
     namelabel = 'shelve.newest'
     for mtime, name in listshelves(repo):
         sname = util.split(name)[1]
         if pats and sname not in pats:
             continue
         ui.write(sname, label=namelabel)
         namelabel = 'shelve.name'
         if ui.quiet:
             ui.write('\n')
             continue
         ui.write(' ' * (16 - len(sname)))
         used = 16
         age = '(%s)' % templatefilters.age(util.makedate(mtime), abbrev=True)
         ui.write(age, label='shelve.age')
         ui.write(' ' * (12 - len(age)))
         used += 12
         with open(name + '.patch', 'rb') as fp:
             while True:
                 line = fp.readline()
                 if not line:
                     break
                 if not line.startswith('#'):
                     desc = line.rstrip()
                     if ui.formatted():
                         desc = util.ellipsis(desc, width - used)
                     ui.write(desc)
                     break
             ui.write('\n')
             if not (opts['patch'] or opts['stat']):
                 continue
             difflines = fp.readlines()
             if opts['patch']:
                 for chunk, label in patch.difflabel(iter, difflines):
                     ui.write(chunk, label=label)
             if opts['stat']:
                 for chunk, label in patch.diffstatui(difflines, width=width,
                                                      git=True):
                     ui.write(chunk, label=label)
 
 def singlepatchcmds(ui, repo, pats, opts, subcommand):
     """subcommand that displays a single shelf"""
     if len(pats) != 1:
         raise error.Abort(_("--%s expects a single shelf") % subcommand)
     shelfname = pats[0]
 
     if not shelvedfile(repo, shelfname, 'patch').exists():
         raise error.Abort(_("cannot find shelf %s") % shelfname)
 
     listcmd(ui, repo, pats, opts)
 
 def checkparents(repo, state):
     """check parent while resuming an unshelve"""
     if state.parents != repo.dirstate.parents():
         raise error.Abort(_('working directory parents do not match unshelve '
                            'state'))
 
 def pathtofiles(repo, files):
     cwd = repo.getcwd()
     return [repo.pathto(f, cwd) for f in files]
 
 def unshelveabort(ui, repo, state, opts):
     """subcommand that abort an in-progress unshelve"""
     with repo.lock():
         try:
             checkparents(repo, state)
 
             util.rename(repo.join('unshelverebasestate'),
                         repo.join('rebasestate'))
             try:
                 rebase.rebase(ui, repo, **{
                     'abort' : True
                 })
             except Exception:
                 util.rename(repo.join('rebasestate'),
                             repo.join('unshelverebasestate'))
                 raise
 
             mergefiles(ui, repo, state.wctx, state.pendingctx)
             repair.strip(ui, repo, state.stripnodes, backup=False,
                          topic='shelve')
         finally:
             shelvedstate.clear(repo)
             ui.warn(_("unshelve of '%s' aborted\n") % state.name)
 
 def mergefiles(ui, repo, wctx, shelvectx):
     """updates to wctx and merges the changes from shelvectx into the
     dirstate."""
     oldquiet = ui.quiet
     try:
         ui.quiet = True
         hg.update(repo, wctx.node())
         files = []
         files.extend(shelvectx.files())
         files.extend(shelvectx.parents()[0].files())
 
         # revert will overwrite unknown files, so move them out of the way
         for file in repo.status(unknown=True).unknown:
             if file in files:
                 util.rename(file, scmutil.origpath(ui, repo, file))
         ui.pushbuffer(True)
         cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(),
                        *pathtofiles(repo, files),
                        **{'no_backup': True})
         ui.popbuffer()
     finally:
         ui.quiet = oldquiet
 
 def restorebranch(ui, repo, branchtorestore):
     if branchtorestore and branchtorestore != repo.dirstate.branch():
         repo.dirstate.setbranch(branchtorestore)
         ui.status(_('marked working directory as branch %s\n')
                   % branchtorestore)
 
 def unshelvecleanup(ui, repo, name, opts):
     """remove related files after an unshelve"""
     if not opts.get('keep'):
         for filetype in 'hg patch'.split():
             shelvedfile(repo, name, filetype).movetobackup()
         cleanupoldbackups(repo)
 
 def unshelvecontinue(ui, repo, state, opts):
     """subcommand to continue an in-progress unshelve"""
     # We're finishing off a merge. First parent is our original
     # parent, second is the temporary "fake" commit we're unshelving.
     with repo.lock():
         checkparents(repo, state)
         ms = merge.mergestate.read(repo)
         if [f for f in ms if ms[f] == 'u']:
             raise error.Abort(
                 _("unresolved conflicts, can't continue"),
                 hint=_("see 'hg resolve', then 'hg unshelve --continue'"))
 
         util.rename(repo.join('unshelverebasestate'),
                     repo.join('rebasestate'))
         try:
             rebase.rebase(ui, repo, **{
                 'continue' : True
             })
         except Exception:
             util.rename(repo.join('rebasestate'),
                         repo.join('unshelverebasestate'))
             raise
 
         shelvectx = repo['tip']
         if not shelvectx in state.pendingctx.children():
             # rebase was a no-op, so it produced no child commit
             shelvectx = state.pendingctx
         else:
             # only strip the shelvectx if the rebase produced it
             state.stripnodes.append(shelvectx.node())
 
         mergefiles(ui, repo, state.wctx, shelvectx)
         restorebranch(ui, repo, state.branchtorestore)
 
         repair.strip(ui, repo, state.stripnodes, backup=False, topic='shelve')
         shelvedstate.clear(repo)
         unshelvecleanup(ui, repo, state.name, opts)
         ui.status(_("unshelve of '%s' complete\n") % state.name)
 
 @command('unshelve',
          [('a', 'abort', None,
            _('abort an incomplete unshelve operation')),
           ('c', 'continue', None,
            _('continue an incomplete unshelve operation')),
           ('k', 'keep', None,
            _('keep shelve after unshelving')),
           ('t', 'tool', '', _('specify merge tool')),
           ('', 'date', '',
            _('set date for temporary commits (DEPRECATED)'), _('DATE'))],
          _('hg unshelve [SHELVED]'))
 def unshelve(ui, repo, *shelved, **opts):
     """restore a shelved change to the working directory
 
     This command accepts an optional name of a shelved change to
     restore. If none is given, the most recent shelved change is used.
 
     If a shelved change is applied successfully, the bundle that
     contains the shelved changes is moved to a backup location
     (.hg/shelve-backup).
 
     Since you can restore a shelved change on top of an arbitrary
     commit, it is possible that unshelving will result in a conflict
     between your changes and the commits you are unshelving onto. If
     this occurs, you must resolve the conflict, then use
     ``--continue`` to complete the unshelve operation. (The bundle
     will not be moved until you successfully complete the unshelve.)
 
     (Alternatively, you can use ``--abort`` to abandon an unshelve
     that causes a conflict. This reverts the unshelved changes, and
     leaves the bundle in place.)
 
     If bare shelved change(when no files are specified, without interactive,
     include and exclude option) was done on newly created branch it would
     restore branch information to the working directory.
 
     After a successful unshelve, the shelved changes are stored in a
     backup directory. Only the N most recent backups are kept. N
     defaults to 10 but can be overridden using the ``shelve.maxbackups``
     configuration option.
 
     .. container:: verbose
 
        Timestamp in seconds is used to decide order of backups. More
        than ``maxbackups`` backups are kept, if same timestamp
        prevents from deciding exact order of them, for safety.
     """
     with repo.wlock():
         return _dounshelve(ui, repo, *shelved, **opts)
 
 def _dounshelve(ui, repo, *shelved, **opts):
     abortf = opts.get('abort')
     continuef = opts.get('continue')
     if not abortf and not continuef:
         cmdutil.checkunfinished(repo)
 
     if abortf or continuef:
         if abortf and continuef:
             raise error.Abort(_('cannot use both abort and continue'))
         if shelved:
             raise error.Abort(_('cannot combine abort/continue with '
                                'naming a shelved change'))
         if abortf and opts.get('tool', False):
             ui.warn(_('tool option will be ignored\n'))
 
         try:
             state = shelvedstate.load(repo)
         except IOError as err:
             if err.errno != errno.ENOENT:
                 raise
             cmdutil.wrongtooltocontinue(repo, _('unshelve'))
+        except error.CorruptedState as err:
+            ui.debug(str(err) + '\n')
+            if continuef:
+                msg = _('corrupted shelved state file')
+                hint = _('please run hg unshelve --abort to abort unshelve '
+                         'operation')
+                raise error.Abort(msg, hint=hint)
+            elif abortf:
+                msg = _('could not read shelved state file, your working copy '
+                        'may be in an unexpected state\nplease update to some '
+                        'commit\n')
+                ui.warn(msg)
+                shelvedstate.clear(repo)
+            return
 
         if abortf:
             return unshelveabort(ui, repo, state, opts)
         elif continuef:
             return unshelvecontinue(ui, repo, state, opts)
     elif len(shelved) > 1:
         raise error.Abort(_('can only unshelve one change at a time'))
     elif not shelved:
         shelved = listshelves(repo)
         if not shelved:
             raise error.Abort(_('no shelved changes to apply!'))
         basename = util.split(shelved[0][1])[1]
         ui.status(_("unshelving change '%s'\n") % basename)
     else:
         basename = shelved[0]
 
     if not shelvedfile(repo, basename, 'patch').exists():
         raise error.Abort(_("shelved change '%s' not found") % basename)
 
     oldquiet = ui.quiet
     lock = tr = None
     forcemerge = ui.backupconfig('ui', 'forcemerge')
     try:
         ui.setconfig('ui', 'forcemerge', opts.get('tool', ''), 'unshelve')
         lock = repo.lock()
 
         tr = repo.transaction('unshelve', report=lambda x: None)
         oldtiprev = len(repo)
 
         pctx = repo['.']
         tmpwctx = pctx
         # The goal is to have a commit structure like so:
         # ...-> pctx -> tmpwctx -> shelvectx
         # where tmpwctx is an optional commit with the user's pending changes
         # and shelvectx is the unshelved changes. Then we merge it all down
         # to the original pctx.
 
         # Store pending changes in a commit and remember added in case a shelve
         # contains unknown files that are part of the pending change
         s = repo.status()
         addedbefore = frozenset(s.added)
         if s.modified or s.added or s.removed or s.deleted:
             ui.status(_("temporarily committing pending changes "
                         "(restore with 'hg unshelve --abort')\n"))
             def commitfunc(ui, repo, message, match, opts):
                 hasmq = util.safehasattr(repo, 'mq')
                 if hasmq:
                     saved, repo.mq.checkapplied = repo.mq.checkapplied, False
 
                 backup = repo.ui.backupconfig('phases', 'new-commit')
                 try:
                     repo.ui.setconfig('phases', 'new-commit', phases.secret)
                     return repo.commit(message, 'shelve@localhost',
                                        opts.get('date'), match)
                 finally:
                     repo.ui.restoreconfig(backup)
                     if hasmq:
                         repo.mq.checkapplied = saved
 
             tempopts = {}
             tempopts['message'] = "pending changes temporary commit"
             tempopts['date'] = opts.get('date')
             ui.quiet = True
             node = cmdutil.commit(ui, repo, commitfunc, [], tempopts)
             tmpwctx = repo[node]
 
         ui.quiet = True
         shelvedfile(repo, basename, 'hg').applybundle()
 
         ui.quiet = oldquiet
 
         shelvectx = repo['tip']
 
         branchtorestore = ''
         if shelvectx.branch() != shelvectx.p1().branch():
             branchtorestore = shelvectx.branch()
 
         # If the shelve is not immediately on top of the commit
         # we'll be merging with, rebase it to be on top.
         if tmpwctx.node() != shelvectx.parents()[0].node():
             ui.status(_('rebasing shelved changes\n'))
             try:
                 rebase.rebase(ui, repo, **{
                     'rev' : [shelvectx.rev()],
                     'dest' : str(tmpwctx.rev()),
                     'keep' : True,
                     'tool' : opts.get('tool', ''),
                 })
             except error.InterventionRequired:
                 tr.close()
 
                 stripnodes = [repo.changelog.node(rev)
                               for rev in xrange(oldtiprev, len(repo))]
                 shelvedstate.save(repo, basename, pctx, tmpwctx, stripnodes,
                                   branchtorestore)
 
                 util.rename(repo.join('rebasestate'),
                             repo.join('unshelverebasestate'))
                 raise error.InterventionRequired(
                     _("unresolved conflicts (see 'hg resolve', then "
                       "'hg unshelve --continue')"))
 
             # refresh ctx after rebase completes
             shelvectx = repo['tip']
 
             if not shelvectx in tmpwctx.children():
                 # rebase was a no-op, so it produced no child commit
                 shelvectx = tmpwctx
 
         mergefiles(ui, repo, pctx, shelvectx)
         restorebranch(ui, repo, branchtorestore)
 
         # Forget any files that were unknown before the shelve, unknown before
         # unshelve started, but are now added.
         shelveunknown = shelvectx.extra().get('shelve_unknown')
         if shelveunknown:
             shelveunknown = frozenset(shelveunknown.split('\0'))
             addedafter = frozenset(repo.status().added)
             toforget = (addedafter & shelveunknown) - addedbefore
             repo[None].forget(toforget)
 
         shelvedstate.clear(repo)
 
         # The transaction aborting will strip all the commits for us,
         # but it doesn't update the inmemory structures, so addchangegroup
         # hooks still fire and try to operate on the missing commits.
         # Clean up manually to prevent this.
         repo.unfiltered().changelog.strip(oldtiprev, tr)
 
         unshelvecleanup(ui, repo, basename, opts)
 
         _aborttransaction(repo)
     finally:
         ui.quiet = oldquiet
         if tr:
             tr.release()
         lockmod.release(lock)
         ui.restoreconfig(forcemerge)
 
 @command('shelve',
          [('A', 'addremove', None,
            _('mark new/missing files as added/removed before shelving')),
           ('u', 'unknown', None,
            _('store unknown files in the shelve')),
           ('', 'cleanup', None,
            _('delete all shelved changes')),
           ('', 'date', '',
            _('shelve with the specified commit date'), _('DATE')),
           ('d', 'delete', None,
            _('delete the named shelved change(s)')),
           ('e', 'edit', False,
            _('invoke editor on commit messages')),
           ('l', 'list', None,
            _('list current shelves')),
           ('m', 'message', '',
            _('use text as shelve message'), _('TEXT')),
           ('n', 'name', '',
            _('use the given name for the shelved commit'), _('NAME')),
           ('p', 'patch', None,
            _('show patch')),
           ('i', 'interactive', None,
            _('interactive mode, only works while creating a shelve')),
           ('', 'stat', None,
            _('output diffstat-style summary of changes'))] + commands.walkopts,
          _('hg shelve [OPTION]... [FILE]...'))
 def shelvecmd(ui, repo, *pats, **opts):
     '''save and set aside changes from the working directory
 
     Shelving takes files that "hg status" reports as not clean, saves
     the modifications to a bundle (a shelved change), and reverts the
     files so that their state in the working directory becomes clean.
 
     To restore these changes to the working directory, using "hg
     unshelve"; this will work even if you switch to a different
     commit.
 
     When no files are specified, "hg shelve" saves all not-clean
     files. If specific files or directories are named, only changes to
     those files are shelved.
 
     In bare shelve(when no files are specified, without interactive,
     include and exclude option), shelving remembers information if the
     working directory was on newly created branch, in other words working
     directory was on different branch than its first parent. In this
     situation unshelving restores branch information to the working directory.
 
     Each shelved change has a name that makes it easier to find later.
     The name of a shelved change defaults to being based on the active
     bookmark, or if there is no active bookmark, the current named
     branch.  To specify a different name, use ``--name``.
 
     To see a list of existing shelved changes, use the ``--list``
     option. For each shelved change, this will print its name, age,
     and description; use ``--patch`` or ``--stat`` for more details.
 
     To delete specific shelved changes, use ``--delete``. To delete
     all shelved changes, use ``--cleanup``.
     '''
     allowables = [
         ('addremove', set(['create'])), # 'create' is pseudo action
         ('unknown', set(['create'])),
         ('cleanup', set(['cleanup'])),
 #       ('date', set(['create'])), # ignored for passing '--date "0 0"' in tests
         ('delete', set(['delete'])),
         ('edit', set(['create'])),
         ('list', set(['list'])),
         ('message', set(['create'])),
         ('name', set(['create'])),
         ('patch', set(['patch', 'list'])),
         ('stat', set(['stat', 'list'])),
     ]
     def checkopt(opt):
         if opts.get(opt):
             for i, allowable in allowables:
                 if opts[i] and opt not in allowable:
                     raise error.Abort(_("options '--%s' and '--%s' may not be "
                                        "used together") % (opt, i))
             return True
     if checkopt('cleanup'):
         if pats:
             raise error.Abort(_("cannot specify names when using '--cleanup'"))
         return cleanupcmd(ui, repo)
     elif checkopt('delete'):
         return deletecmd(ui, repo, pats)
     elif checkopt('list'):
         return listcmd(ui, repo, pats, opts)
     elif checkopt('patch'):
         return singlepatchcmds(ui, repo, pats, opts, subcommand='patch')
     elif checkopt('stat'):
         return singlepatchcmds(ui, repo, pats, opts, subcommand='stat')
     else:
         return createcmd(ui, repo, pats, opts)
 
 def extsetup(ui):
     cmdutil.unfinishedstates.append(
         [shelvedstate._filename, False, False,
          _('unshelve already in progress'),
          _("use 'hg unshelve --continue' or 'hg unshelve --abort'")])
     cmdutil.afterresolvedstates.append(
         [shelvedstate._filename, _('hg unshelve --continue')])

mercurial/error.py

@@ -1,242 +1,245
 # error.py - Mercurial exceptions
 #
 # Copyright 2005-2008 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 """Mercurial exceptions.
 
 This allows us to catch exceptions at higher levels without forcing
 imports.
 """
 
 from __future__ import absolute_import
 
 # Do not import anything here, please
 
 class Hint(object):
     """Mix-in to provide a hint of an error
 
     This should come first in the inheritance list to consume a hint and
     pass remaining arguments to the exception class.
     """
     def __init__(self, *args, **kw):
         self.hint = kw.pop('hint', None)
         super(Hint, self).__init__(*args, **kw)
 
 class RevlogError(Hint, Exception):
     pass
 
 class FilteredIndexError(IndexError):
     pass
 
 class LookupError(RevlogError, KeyError):
     def __init__(self, name, index, message):
         self.name = name
         self.index = index
         # this can't be called 'message' because at least some installs of
         # Python 2.6+ complain about the 'message' property being deprecated
         self.lookupmessage = message
         if isinstance(name, str) and len(name) == 20:
             from .node import short
             name = short(name)
         RevlogError.__init__(self, '%s@%s: %s' % (index, name, message))
 
     def __str__(self):
         return RevlogError.__str__(self)
 
 class FilteredLookupError(LookupError):
     pass
 
 class ManifestLookupError(LookupError):
     pass
 
 class CommandError(Exception):
     """Exception raised on errors in parsing the command line."""
 
 class InterventionRequired(Hint, Exception):
     """Exception raised when a command requires human intervention."""
 
 class Abort(Hint, Exception):
     """Raised if a command needs to print an error and exit."""
 
 class HookLoadError(Abort):
     """raised when loading a hook fails, aborting an operation
 
     Exists to allow more specialized catching."""
 
 class HookAbort(Abort):
     """raised when a validation hook fails, aborting an operation
 
     Exists to allow more specialized catching."""
 
 class ConfigError(Abort):
     """Exception raised when parsing config files"""
 
 class UpdateAbort(Abort):
     """Raised when an update is aborted for destination issue"""
 
 class MergeDestAbort(Abort):
     """Raised when an update is aborted for destination issues"""
 
 class NoMergeDestAbort(MergeDestAbort):
     """Raised when an update is aborted because there is nothing to merge"""
 
 class ManyMergeDestAbort(MergeDestAbort):
     """Raised when an update is aborted because destination is ambigious"""
 
 class ResponseExpected(Abort):
     """Raised when an EOF is received for a prompt"""
     def __init__(self):
         from .i18n import _
         Abort.__init__(self, _('response expected'))
 
 class OutOfBandError(Hint, Exception):
     """Exception raised when a remote repo reports failure"""
 
 class ParseError(Hint, Exception):
     """Raised when parsing config files and {rev,file}sets (msg[, pos])"""
 
 class UnknownIdentifier(ParseError):
     """Exception raised when a {rev,file}set references an unknown identifier"""
 
     def __init__(self, function, symbols):
         from .i18n import _
         ParseError.__init__(self, _("unknown identifier: %s") % function)
         self.function = function
         self.symbols = symbols
 
 class RepoError(Hint, Exception):
     pass
 
 class RepoLookupError(RepoError):
     pass
 
 class FilteredRepoLookupError(RepoLookupError):
     pass
 
 class CapabilityError(RepoError):
     pass
 
 class RequirementError(RepoError):
     """Exception raised if .hg/requires has an unknown entry."""
 
 class UnsupportedMergeRecords(Abort):
     def __init__(self, recordtypes):
         from .i18n import _
         self.recordtypes = sorted(recordtypes)
         s = ' '.join(self.recordtypes)
         Abort.__init__(
             self, _('unsupported merge state records: %s') % s,
             hint=_('see https://mercurial-scm.org/wiki/MergeStateRecords for '
                    'more information'))
 
 class LockError(IOError):
     def __init__(self, errno, strerror, filename, desc):
         IOError.__init__(self, errno, strerror, filename)
         self.desc = desc
 
 class LockHeld(LockError):
     def __init__(self, errno, filename, desc, locker):
         LockError.__init__(self, errno, 'Lock held', filename, desc)
         self.locker = locker
 
 class LockUnavailable(LockError):
     pass
 
 # LockError is for errors while acquiring the lock -- this is unrelated
 class LockInheritanceContractViolation(RuntimeError):
     pass
 
 class ResponseError(Exception):
     """Raised to print an error with part of output and exit."""
 
 class UnknownCommand(Exception):
     """Exception raised if command is not in the command table."""
 
 class AmbiguousCommand(Exception):
     """Exception raised if command shortcut matches more than one command."""
 
 # derived from KeyboardInterrupt to simplify some breakout code
 class SignalInterrupt(KeyboardInterrupt):
     """Exception raised on SIGTERM and SIGHUP."""
 
 class SignatureError(Exception):
     pass
 
 class PushRaced(RuntimeError):
     """An exception raised during unbundling that indicate a push race"""
 
 # bundle2 related errors
 class BundleValueError(ValueError):
     """error raised when bundle2 cannot be processed"""
 
 class BundleUnknownFeatureError(BundleValueError):
     def __init__(self, parttype=None, params=(), values=()):
         self.parttype = parttype
         self.params = params
         self.values = values
         if self.parttype is None:
             msg = 'Stream Parameter'
         else:
             msg = parttype
         entries = self.params
         if self.params and self.values:
             assert len(self.params) == len(self.values)
             entries = []
             for idx, par in enumerate(self.params):
                 val = self.values[idx]
                 if val is None:
                     entries.append(val)
                 else:
                     entries.append("%s=%r" % (par, val))
         if entries:
             msg = '%s - %s' % (msg, ', '.join(entries))
         ValueError.__init__(self, msg)
 
 class ReadOnlyPartError(RuntimeError):
     """error raised when code tries to alter a part being generated"""
 
 class PushkeyFailed(Abort):
     """error raised when a pushkey part failed to update a value"""
 
     def __init__(self, partid, namespace=None, key=None, new=None, old=None,
                  ret=None):
         self.partid = partid
         self.namespace = namespace
         self.key = key
         self.new = new
         self.old = old
         self.ret = ret
         # no i18n expected to be processed into a better message
         Abort.__init__(self, 'failed to update value for "%s/%s"'
                        % (namespace, key))
 
 class CensoredNodeError(RevlogError):
     """error raised when content verification fails on a censored node
 
     Also contains the tombstone data substituted for the uncensored data.
     """
 
     def __init__(self, filename, node, tombstone):
         from .node import short
         RevlogError.__init__(self, '%s:%s' % (filename, short(node)))
         self.tombstone = tombstone
 
 class CensoredBaseError(RevlogError):
     """error raised when a delta is rejected because its base is censored
 
     A delta based on a censored revision must be formed as single patch
     operation which replaces the entire base with new content. This ensures
     the delta may be applied by clones which have not censored the base.
     """
 
 class InvalidBundleSpecification(Exception):
     """error raised when a bundle specification is invalid.
 
     This is used for syntax errors as opposed to support errors.
     """
 
 class UnsupportedBundleSpecification(Exception):
     """error raised when a bundle specification is not supported."""
+
+class CorruptedState(Exception):
+    """error raised when a command is not able to read its state from file"""

tests/test-shelve.t

@@ -1,1587 +1,1624
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > mq =
   > shelve =
   > [defaults]
   > diff = --nodates --git
   > qnew = --date '0 0'
   > [shelve]
   > maxbackups = 2
   > EOF
 
   $ hg init repo
   $ cd repo
   $ mkdir a b
   $ echo a > a/a
   $ echo b > b/b
   $ echo c > c
   $ echo d > d
   $ echo x > x
   $ hg addremove -q
 
 shelve has a help message
   $ hg shelve -h
   hg shelve [OPTION]... [FILE]...
   
   save and set aside changes from the working directory
   
       Shelving takes files that "hg status" reports as not clean, saves the
       modifications to a bundle (a shelved change), and reverts the files so
       that their state in the working directory becomes clean.
   
       To restore these changes to the working directory, using "hg unshelve";
       this will work even if you switch to a different commit.
   
       When no files are specified, "hg shelve" saves all not-clean files. If
       specific files or directories are named, only changes to those files are
       shelved.
   
       In bare shelve(when no files are specified, without interactive, include
       and exclude option), shelving remembers information if the working
       directory was on newly created branch, in other words working directory
       was on different branch than its first parent. In this situation
       unshelving restores branch information to the working directory.
   
       Each shelved change has a name that makes it easier to find later. The
       name of a shelved change defaults to being based on the active bookmark,
       or if there is no active bookmark, the current named branch.  To specify a
       different name, use "--name".
   
       To see a list of existing shelved changes, use the "--list" option. For
       each shelved change, this will print its name, age, and description; use "
       --patch" or "--stat" for more details.
   
       To delete specific shelved changes, use "--delete". To delete all shelved
       changes, use "--cleanup".
   
   (use "hg help -e shelve" to show help for the shelve extension)
   
   options ([+] can be repeated):
   
    -A --addremove           mark new/missing files as added/removed before
                             shelving
    -u --unknown             store unknown files in the shelve
       --cleanup             delete all shelved changes
       --date DATE           shelve with the specified commit date
    -d --delete              delete the named shelved change(s)
    -e --edit                invoke editor on commit messages
    -l --list                list current shelves
    -m --message TEXT        use text as shelve message
    -n --name NAME           use the given name for the shelved commit
    -p --patch               show patch
    -i --interactive         interactive mode, only works while creating a shelve
       --stat                output diffstat-style summary of changes
    -I --include PATTERN [+] include names matching the given patterns
    -X --exclude PATTERN [+] exclude names matching the given patterns
       --mq                  operate on patch repository
   
   (some details hidden, use --verbose to show complete help)
 
 shelving in an empty repo should be possible
 (this tests also that editor is not invoked, if '--edit' is not
 specified)
 
   $ HGEDITOR=cat hg shelve
   shelved as default
   0 files updated, 0 files merged, 5 files removed, 0 files unresolved
 
   $ hg unshelve
   unshelving change 'default'
 
   $ hg commit -q -m 'initial commit'
 
   $ hg shelve
   nothing changed
   [1]
 
 make sure shelve files were backed up
 
   $ ls .hg/shelve-backup
   default.hg
   default.patch
 
 create an mq patch - shelving should work fine with a patch applied
 
   $ echo n > n
   $ hg add n
   $ hg commit n -m second
   $ hg qnew second.patch
 
 shelve a change that we will delete later
 
   $ echo a >> a/a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 set up some more complex changes to shelve
 
   $ echo a >> a/a
   $ hg mv b b.rename
   moving b/b to b.rename/b (glob)
   $ hg cp c c.copy
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
 
 prevent some foot-shooting
 
   $ hg shelve -n foo/bar
   abort: shelved change names may not contain slashes
   [255]
   $ hg shelve -n .baz
   abort: shelved change names may not start with '.'
   [255]
 
 the common case - no options or filenames
 
   $ hg shelve
   shelved as default-01
   2 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg status -C
 
 ensure that our shelved changes exist
 
   $ hg shelve -l
   default-01      (*)* changes to: [mq]: second.patch (glob)
   default         (*)* changes to: [mq]: second.patch (glob)
 
   $ hg shelve -l -p default
   default         (*)* changes to: [mq]: second.patch (glob)
   
   diff --git a/a/a b/a/a
   --- a/a/a
   +++ b/a/a
   @@ -1,1 +1,2 @@
    a
   +a
 
   $ hg shelve --list --addremove
   abort: options '--list' and '--addremove' may not be used together
   [255]
 
 delete our older shelved change
 
   $ hg shelve -d default
   $ hg qfinish -a -q
 
 ensure shelve backups aren't overwritten
 
   $ ls .hg/shelve-backup/
   default-1.hg
   default-1.patch
   default.hg
   default.patch
 
 local edits should not prevent a shelved change from applying
 
   $ printf "z\na\n" > a/a
   $ hg unshelve --keep
   unshelving change 'default-01'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 4:32c69314e062 "changes to: [mq]: second.patch" (tip)
   merging a/a
 
   $ hg revert --all -q
   $ rm a/a.orig b.rename/b c.copy
 
 apply it and make sure our state is as expected
 
 (this also tests that same timestamp prevents backups from being
 removed, even though there are more than 'maxbackups' backups)
 
   $ f -t .hg/shelve-backup/default.hg
   .hg/shelve-backup/default.hg: file
   $ touch -t 200001010000 .hg/shelve-backup/default.hg
   $ f -t .hg/shelve-backup/default-1.hg
   .hg/shelve-backup/default-1.hg: file
   $ touch -t 200001010000 .hg/shelve-backup/default-1.hg
 
   $ hg unshelve
   unshelving change 'default-01'
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ hg shelve -l
 
 (both of default.hg and default-1.hg should be still kept, because it
 is difficult to decide actual order of them from same timestamp)
 
   $ ls .hg/shelve-backup/
   default-01.hg
   default-01.patch
   default-1.hg
   default-1.patch
   default.hg
   default.patch
 
   $ hg unshelve
   abort: no shelved changes to apply!
   [255]
   $ hg unshelve foo
   abort: shelved change 'foo' not found
   [255]
 
 named shelves, specific filenames, and "commit messages" should all work
 (this tests also that editor is invoked, if '--edit' is specified)
 
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ HGEDITOR=cat hg shelve -q -n wibble -m wat -e a
   wat
   
   
   HG: Enter commit message.  Lines beginning with 'HG:' are removed.
   HG: Leave message empty to abort commit.
   HG: --
   HG: user: shelve@localhost
   HG: branch 'default'
   HG: changed a/a
 
 expect "a" to no longer be present, but status otherwise unchanged
 
   $ hg status -C
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
   $ hg shelve -l --stat
   wibble          (*)    wat (glob)
    a/a |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
 
 and now "a/a" should reappear
 
   $ cd a
   $ hg unshelve -q wibble
   $ cd ..
   $ hg status -C
   M a/a
   A b.rename/b
     b/b
   A c.copy
     c
   R b/b
 
 ensure old shelve backups are being deleted automatically
 
   $ ls .hg/shelve-backup/
   default-01.hg
   default-01.patch
   wibble.hg
   wibble.patch
 
 cause unshelving to result in a merge with 'a' conflicting
 
   $ hg shelve -q
   $ echo c>>a/a
   $ hg commit -m second
   $ hg tip --template '{files}\n'
   a/a
 
 add an unrelated change that should be preserved
 
   $ mkdir foo
   $ echo foo > foo/foo
   $ hg add foo/foo
 
 force a conflicted merge to occur
 
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:32c69314e062 "changes to: [mq]: second.patch" (tip)
   merging a/a
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 
 ensure that we have a merge with unresolved conflicts
 
   $ hg heads -q --template '{rev}\n'
   5
   4
   $ hg parents -q --template '{rev}\n'
   4
   5
   $ hg status
   M a/a
   M b.rename/b
   M c.copy
   R b/b
   ? a/a.orig
   $ hg diff
   diff --git a/a/a b/a/a
   --- a/a/a
   +++ b/a/a
   @@ -1,2 +1,6 @@
    a
   +<<<<<<< dest:   *  - shelve: pending changes temporary commit (glob)
    c
   +=======
   +a
   +>>>>>>> source: 32c69314e062 - shelve: changes to: [mq]: second.patch
   diff --git a/b/b b/b.rename/b
   rename from b/b
   rename to b.rename/b
   diff --git a/c b/c.copy
   copy from c
   copy to c.copy
   $ hg resolve -l
   U a/a
 
   $ hg shelve
   abort: unshelve already in progress
   (use 'hg unshelve --continue' or 'hg unshelve --abort')
   [255]
 
 abort the unshelve and be happy
 
   $ hg status
   M a/a
   M b.rename/b
   M c.copy
   R b/b
   ? a/a.orig
   $ hg unshelve -a
   rebase aborted
   unshelve of 'default' aborted
   $ hg heads -q
   3:2e69b451d1ea
   $ hg parents
   changeset:   3:2e69b451d1ea
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     second
   
   $ hg resolve -l
   $ hg status
   A foo/foo
   ? a/a.orig
 
 try to continue with no unshelve underway
 
   $ hg unshelve -c
   abort: no unshelve in progress
   [255]
   $ hg status
   A foo/foo
   ? a/a.orig
 
 redo the unshelve to get a conflict
 
   $ hg unshelve -q
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 
 attempt to continue
 
   $ hg unshelve -c
   abort: unresolved conflicts, can't continue
   (see 'hg resolve', then 'hg unshelve --continue')
   [255]
 
   $ hg revert -r . a/a
   $ hg resolve -m a/a
   (no more unresolved files)
   continue: hg unshelve --continue
 
   $ hg commit -m 'commit while unshelve in progress'
   abort: unshelve already in progress
   (use 'hg unshelve --continue' or 'hg unshelve --abort')
   [255]
 
   $ hg graft --continue
   abort: no graft in progress
   (continue: hg unshelve --continue)
   [255]
   $ hg unshelve -c
   rebasing 5:32c69314e062 "changes to: [mq]: second.patch" (tip)
   unshelve of 'default' complete
 
 ensure the repo is as we hope
 
   $ hg parents
   changeset:   3:2e69b451d1ea
   tag:         tip
   user:        test
   date:        Thu Jan 01 00:00:00 1970 +0000
   summary:     second
   
   $ hg heads -q
   3:2e69b451d1ea
 
   $ hg status -C
   A b.rename/b
     b/b
   A c.copy
     c
   A foo/foo
   R b/b
   ? a/a.orig
 
 there should be no shelves left
 
   $ hg shelve -l
 
 #if execbit
 
 ensure that metadata-only changes are shelved
 
   $ chmod +x a/a
   $ hg shelve -q -n execbit a/a
   $ hg status a/a
   $ hg unshelve -q execbit
   $ hg status a/a
   M a/a
   $ hg revert a/a
 
 #endif
 
 #if symlink
 
   $ rm a/a
   $ ln -s foo a/a
   $ hg shelve -q -n symlink a/a
   $ hg status a/a
   $ hg unshelve -q symlink
   $ hg status a/a
   M a/a
   $ hg revert a/a
 
 #endif
 
 set up another conflict between a commit and a shelved change
 
   $ hg revert -q -C -a
   $ rm a/a.orig b.rename/b c.copy
   $ echo a >> a/a
   $ hg shelve -q
   $ echo x >> a/a
   $ hg ci -m 'create conflict'
   $ hg add foo/foo
 
 if we resolve a conflict while unshelving, the unshelve should succeed
 
   $ hg unshelve --tool :merge-other --keep
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 6:2f694dd83a13 "changes to: second" (tip)
   merging a/a
   $ hg parents -q
   4:33f7f61e6c5e
   $ hg shelve -l
   default         (*)* changes to: second (glob)
   $ hg status
   M a/a
   A foo/foo
   $ cat a/a
   a
   c
   a
   $ cat > a/a << EOF
   > a
   > c
   > x
   > EOF
 
   $ HGMERGE=true hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 6:2f694dd83a13 "changes to: second" (tip)
   merging a/a
   note: rebase of 6:2f694dd83a13 created no changes to commit
   $ hg parents -q
   4:33f7f61e6c5e
   $ hg shelve -l
   $ hg status
   A foo/foo
   $ cat a/a
   a
   c
   x
 
 test keep and cleanup
 
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg shelve --list
   default         (*)* changes to: create conflict (glob)
   $ hg unshelve -k
   unshelving change 'default'
   $ hg shelve --list
   default         (*)* changes to: create conflict (glob)
   $ hg shelve --cleanup
   $ hg shelve --list
 
   $ hg shelve --cleanup --delete
   abort: options '--cleanup' and '--delete' may not be used together
   [255]
   $ hg shelve --cleanup --patch
   abort: options '--cleanup' and '--patch' may not be used together
   [255]
   $ hg shelve --cleanup --message MESSAGE
   abort: options '--cleanup' and '--message' may not be used together
   [255]
 
 test bookmarks
 
   $ hg bookmark test
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg shelve
   shelved as test
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'test'
   $ hg bookmark
    * test                      4:33f7f61e6c5e
 
 shelve should still work even if mq is disabled
 
   $ hg --config extensions.mq=! shelve
   shelved as test
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg --config extensions.mq=! shelve --list
   test            (*)* changes to: create conflict (glob)
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg --config extensions.mq=! unshelve
   unshelving change 'test'
   $ hg bookmark
    * test                      4:33f7f61e6c5e
 
 shelve should leave dirstate clean (issue4055)
 
   $ cd ..
   $ hg init shelverebase
   $ cd shelverebase
   $ printf 'x\ny\n' > x
   $ echo z > z
   $ hg commit -Aqm xy
   $ echo z >> x
   $ hg commit -Aqm z
   $ hg up 0
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ printf 'a\nx\ny\nz\n' > x
   $ hg commit -Aqm xyz
   $ echo c >> z
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg rebase -d 1 --config extensions.rebase=
   rebasing 2:323bfa07f744 "xyz" (tip)
   merging x
   saved backup bundle to $TESTTMP/shelverebase/.hg/strip-backup/323bfa07f744-78114325-backup.hg (glob)
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 4:82a0d7d6ba61 "changes to: xyz" (tip)
   $ hg status
   M z
 
   $ cd ..
 
 shelve should only unshelve pending changes (issue4068)
 
   $ hg init onlypendingchanges
   $ cd onlypendingchanges
   $ touch a
   $ hg ci -Aqm a
   $ touch b
   $ hg ci -Aqm b
   $ hg up -q 0
   $ touch c
   $ hg ci -Aqm c
 
   $ touch d
   $ hg add d
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg up -q 1
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 3:958bcbd1776e "changes to: c" (tip)
   $ hg status
   A d
 
 unshelve should work on an ancestor of the original commit
 
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg up 0
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 3:013284d9655e "changes to: b" (tip)
   $ hg status
   A d
 
 test bug 4073 we need to enable obsolete markers for it
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
   > evolution=createmarkers
   > EOF
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugobsolete `hg --debug id -i -r 1`
   $ hg unshelve
   unshelving change 'default'
 
 unshelve should leave unknown files alone (issue4113)
 
   $ echo e > e
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg status
   ? e
   $ hg unshelve
   unshelving change 'default'
   $ hg status
   A d
   ? e
   $ cat e
   e
 
 unshelve should keep a copy of unknown files
 
   $ hg add e
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ echo z > e
   $ hg unshelve
   unshelving change 'default'
   $ cat e
   e
   $ cat e.orig
   z
 
 
 unshelve and conflicts with tracked and untracked files
 
  preparing:
 
   $ rm *.orig
   $ hg ci -qm 'commit stuff'
   $ hg phase -p null:
 
  no other changes - no merge:
 
   $ echo f > f
   $ hg add f
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo g > f
   $ hg unshelve
   unshelving change 'default'
   $ hg st
   A f
   ? f.orig
   $ cat f
   f
   $ cat f.orig
   g
 
  other uncommitted changes - merge:
 
   $ hg st
   A f
   ? f.orig
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg log -G --template '{rev}  {desc|firstline}  {author}' -R bundle://.hg/shelved/default.hg -r 'bundle()'
   o  4  changes to: commit stuff  shelve@localhost
   |
   ~
   $ hg log -G --template '{rev}  {desc|firstline}  {author}'
   @  3  commit stuff  test
   |
   | o  2  c  test
   |/
   o  0  a  test
   
   $ mv f.orig f
   $ echo 1 > a
   $ hg unshelve --date '1073741824 0'
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:81152db69da7 "changes to: commit stuff" (tip)
   merging f
   warning: conflicts while merging f! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg log -G --template '{rev}  {desc|firstline}  {author}  {date|isodate}'
   @  5  changes to: commit stuff  shelve@localhost  1970-01-01 00:00 +0000
   |
   | @  4  pending changes temporary commit  shelve@localhost  2004-01-10 13:37 +0000
   |/
   o  3  commit stuff  test  1970-01-01 00:00 +0000
   |
   | o  2  c  test  1970-01-01 00:00 +0000
   |/
   o  0  a  test  1970-01-01 00:00 +0000
   
   $ hg st
   M f
   ? f.orig
   $ cat f
   <<<<<<< dest:   5f6b880e719b  - shelve: pending changes temporary commit
   g
   =======
   f
   >>>>>>> source: 81152db69da7 - shelve: changes to: commit stuff
   $ cat f.orig
   g
   $ hg unshelve --abort -t false
   tool option will be ignored
   rebase aborted
   unshelve of 'default' aborted
   $ hg st
   M a
   ? f.orig
   $ cat f.orig
   g
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 5:81152db69da7 "changes to: commit stuff" (tip)
   $ hg st
   M a
   A f
   ? f.orig
 
  other committed changes - merge:
 
   $ hg shelve f
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg ci a -m 'intermediate other change'
   $ mv f.orig f
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 5:81152db69da7 "changes to: commit stuff" (tip)
   merging f
   warning: conflicts while merging f! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg st
   M f
   ? f.orig
   $ cat f
   <<<<<<< dest:   *  - test: intermediate other change (glob)
   g
   =======
   f
   >>>>>>> source: 81152db69da7 - shelve: changes to: commit stuff
   $ cat f.orig
   g
   $ hg unshelve --abort
   rebase aborted
   unshelve of 'default' aborted
   $ hg st
   ? f.orig
   $ cat f.orig
   g
   $ hg shelve --delete default
 
 Recreate some conflict again
 
   $ cd ../repo
   $ hg up -C -r 3
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (leaving bookmark test)
   $ echo y >> a/a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg up test
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (activating bookmark test)
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 5:e42a7da90865 "changes to: second" (tip)
   merging a/a
   warning: conflicts while merging a/a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ hg bookmark
      test                      4:33f7f61e6c5e
 
 Test that resolving all conflicts in one direction (so that the rebase
 is a no-op), works (issue4398)
 
   $ hg revert -a -r .
   reverting a/a (glob)
   $ hg resolve -m a/a
   (no more unresolved files)
   continue: hg unshelve --continue
   $ hg unshelve -c
   rebasing 5:e42a7da90865 "changes to: second" (tip)
   note: rebase of 5:e42a7da90865 created no changes to commit
   unshelve of 'default' complete
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg diff
   $ hg status
   ? a/a.orig
   ? foo/foo
   $ hg summary
   parent: 4:33f7f61e6c5e tip
    create conflict
   branch: default
   bookmarks: *test
   commit: 2 unknown (clean)
   update: (current)
   phases: 5 draft
 
   $ hg shelve --delete --stat
   abort: options '--delete' and '--stat' may not be used together
   [255]
   $ hg shelve --delete --name NAME
   abort: options '--delete' and '--name' may not be used together
   [255]
 
 Test interactive shelve
   $ cat <<EOF >> $HGRCPATH
   > [ui]
   > interactive = true
   > EOF
   $ echo 'a' >> a/b
   $ cat a/a >> a/b
   $ echo 'x' >> a/b
   $ mv a/b a/a
   $ echo 'a' >> foo/foo
   $ hg st
   M a/a
   ? a/a.orig
   ? foo/foo
   $ cat a/a
   a
   a
   c
   x
   x
   $ cat foo/foo
   foo
   a
   $ hg shelve --interactive --config ui.interactive=false
   abort: running non-interactively
   [255]
   $ hg shelve --interactive << EOF
   > y
   > y
   > n
   > EOF
   diff --git a/a/a b/a/a
   2 hunks, 2 lines changed
   examine changes to 'a/a'? [Ynesfdaq?] y
   
   @@ -1,3 +1,4 @@
   +a
    a
    c
    x
   record change 1/2 to 'a/a'? [Ynesfdaq?] y
   
   @@ -1,3 +2,4 @@
    a
    c
    x
   +x
   record change 2/2 to 'a/a'? [Ynesfdaq?] n
   
   shelved as test
   merging a/a
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   $ cat a/a
   a
   c
   x
   x
   $ cat foo/foo
   foo
   a
   $ hg st
   M a/a
   ? foo/foo
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ hg unshelve
   unshelving change 'test'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 6:96a1354f65f6 "changes to: create conflict" (tip)
   merging a/a
   $ hg bookmark
    * test                      4:33f7f61e6c5e
   $ cat a/a
   a
   a
   c
   x
   x
 
 shelve --patch and shelve --stat should work with a single valid shelfname
 
   $ hg up --clean .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (leaving bookmark test)
   $ hg shelve --list
   $ echo 'patch a' > shelf-patch-a
   $ hg add shelf-patch-a
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ echo 'patch b' > shelf-patch-b
   $ hg add shelf-patch-b
   $ hg shelve
   shelved as default-01
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg shelve --patch default default-01
   abort: --patch expects a single shelf
   [255]
   $ hg shelve --stat default default-01
   abort: --stat expects a single shelf
   [255]
   $ hg shelve --patch default
   default         (*)* changes to: create conflict (glob)
   
   diff --git a/shelf-patch-a b/shelf-patch-a
   new file mode 100644
   --- /dev/null
   +++ b/shelf-patch-a
   @@ -0,0 +1,1 @@
   +patch a
   $ hg shelve --stat default
   default         (*)* changes to: create conflict (glob)
    shelf-patch-a |  1 +
    1 files changed, 1 insertions(+), 0 deletions(-)
   $ hg shelve --patch nonexistentshelf
   abort: cannot find shelf nonexistentshelf
   [255]
   $ hg shelve --stat nonexistentshelf
   abort: cannot find shelf nonexistentshelf
   [255]
 
   $ cd ..
 
 Shelve from general delta repo uses bundle2 on disk
 --------------------------------------------------
 
 no general delta
 
   $ hg clone --pull repo bundle1 --config format.usegeneraldelta=0
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 8 changes to 6 files
   updating to branch default
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd bundle1
   $ echo babar > jungle
   $ hg add jungle
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugbundle .hg/shelved/*.hg
   45993d65fe9dc3c6d8764b9c3b07fa831ee7d92d
   $ cd ..
 
 with general delta
 
   $ hg clone --pull repo bundle2 --config format.usegeneraldelta=1
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   added 5 changesets with 8 changes to 6 files
   updating to branch default
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd bundle2
   $ echo babar > jungle
   $ hg add jungle
   $ hg shelve
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg debugbundle .hg/shelved/*.hg
   Stream params: {'Compression': 'BZ'}
   changegroup -- "{'version': '02'}"
       45993d65fe9dc3c6d8764b9c3b07fa831ee7d92d
   $ cd ..
 
 Test visibility of in-memory changes inside transaction to external hook
 ------------------------------------------------------------------------
 
   $ cd repo
 
   $ echo xxxx >> x
   $ hg commit -m "#5: changes to invoke rebase"
 
   $ cat > $TESTTMP/checkvisibility.sh <<EOF
   > echo "==== \$1:"
   > hg parents --template "VISIBLE {rev}:{node|short}\n"
   > # test that pending changes are hidden
   > unset HG_PENDING
   > hg parents --template "ACTUAL  {rev}:{node|short}\n"
   > echo "===="
   > EOF
 
   $ cat >> .hg/hgrc <<EOF
   > [defaults]
   > # to fix hash id of temporary revisions
   > unshelve = --date '0 0'
   > EOF
 
 "hg unshelve" at REV5 implies steps below:
 
 (1) commit changes in the working directory (REV6)
 (2) unbundle shelved revision (REV7)
 (3) rebase: merge REV7 into REV6 (REV6 => REV6, REV7)
 (4) rebase: commit merged revision (REV8)
 (5) rebase: update to REV6 (REV8 => REV6)
 (6) update to REV5 (REV6 => REV5)
 (7) abort transaction
 
 == test visibility to external preupdate hook
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
   > EOF
 
   $ echo nnnn >> n
 
   $ sh $TESTTMP/checkvisibility.sh before-unshelving
   ==== before-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
   $ hg unshelve --keep default
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 7:206bf5d4f922 "changes to: create conflict" (tip)
   ==== preupdate:
   VISIBLE 6:66b86db80ee4
   ACTUAL  5:703117a2acfb
   ====
   ==== preupdate:
   VISIBLE 8:a0e04704317e
   ACTUAL  5:703117a2acfb
   ====
   ==== preupdate:
   VISIBLE 6:66b86db80ee4
   ACTUAL  5:703117a2acfb
   ====
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > preupdate.visibility =
   > EOF
 
   $ sh $TESTTMP/checkvisibility.sh after-unshelving
   ==== after-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
 == test visibility to external update hook
 
   $ hg update -q -C 5
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > update.visibility = sh $TESTTMP/checkvisibility.sh update
   > EOF
 
   $ echo nnnn >> n
 
   $ sh $TESTTMP/checkvisibility.sh before-unshelving
   ==== before-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
   $ hg unshelve --keep default
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 7:206bf5d4f922 "changes to: create conflict" (tip)
   ==== update:
   VISIBLE 6:66b86db80ee4
   VISIBLE 7:206bf5d4f922
   ACTUAL  5:703117a2acfb
   ====
   ==== update:
   VISIBLE 6:66b86db80ee4
   ACTUAL  5:703117a2acfb
   ====
   ==== update:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
   $ cat >> .hg/hgrc <<EOF
   > [hooks]
   > update.visibility =
   > EOF
 
   $ sh $TESTTMP/checkvisibility.sh after-unshelving
   ==== after-unshelving:
   VISIBLE 5:703117a2acfb
   ACTUAL  5:703117a2acfb
   ====
 
   $ cd ..
 
 test .orig files go where the user wants them to
 ---------------------------------------------------------------
   $ hg init salvage
   $ cd salvage
   $ echo 'content' > root
   $ hg commit -A -m 'root' -q
   $ echo '' > root
   $ hg shelve -q
   $ echo 'contADDent' > root
   $ hg unshelve -q --config 'ui.origbackuppath=.hg/origbackups'
   warning: conflicts while merging root! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ ls .hg/origbackups
   root.orig
   $ rm -rf .hg/origbackups
 
 test Abort unshelve always gets user out of the unshelved state
 ---------------------------------------------------------------
 Wreak havoc on the unshelve process
   $ rm .hg/unshelverebasestate
   $ hg unshelve --abort
   unshelve of 'default' aborted
   abort: (No such file or directory|The system cannot find the file specified) (re)
   [255]
 Can the user leave the current state?
   $ hg up -C .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Try again but with a corrupted shelve state file
   $ hg strip -r 2 -r 1 -q
   $ hg up -r 0 -q
   $ echo '' > root
   $ hg shelve -q
   $ echo 'contADDent' > root
   $ hg unshelve -q
   warning: conflicts while merging root! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ sed 's/ae8c668541e8/123456789012/' .hg/shelvedstate > ../corrupt-shelvedstate
   $ mv ../corrupt-shelvedstate .hg/histedit-state
   $ hg unshelve --abort 2>&1 | grep 'rebase aborted'
   rebase aborted
   $ hg up -C .
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd ..
 
 Keep active bookmark while (un)shelving even on shared repo (issue4940)
 -----------------------------------------------------------------------
 
   $ cat <<EOF >> $HGRCPATH
   > [extensions]
   > share =
   > EOF
 
   $ hg bookmarks -R repo
      test                      4:33f7f61e6c5e
   $ hg share -B repo share
   updating working directory
   6 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cd share
 
   $ hg bookmarks
      test                      4:33f7f61e6c5e
   $ hg bookmarks foo
   $ hg bookmarks
    * foo                       5:703117a2acfb
      test                      4:33f7f61e6c5e
   $ echo x >> x
   $ hg shelve
   shelved as foo
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg bookmarks
    * foo                       5:703117a2acfb
      test                      4:33f7f61e6c5e
 
   $ hg unshelve
   unshelving change 'foo'
   $ hg bookmarks
    * foo                       5:703117a2acfb
      test                      4:33f7f61e6c5e
 
   $ cd ..
 
 Shelve and unshelve unknown files. For the purposes of unshelve, a shelved
 unknown file is the same as a shelved added file, except that it will be in
 unknown state after unshelve if and only if it was either absent or unknown
 before the unshelve operation.
 
   $ hg init unknowns
   $ cd unknowns
 
 The simplest case is if I simply have an unknown file that I shelve and unshelve
 
   $ echo unknown > unknown
   $ hg status
   ? unknown
   $ hg shelve --unknown
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg status
   $ hg unshelve
   unshelving change 'default'
   $ hg status
   ? unknown
   $ rm unknown
 
 If I shelve, add the file, and unshelve, does it stay added?
 
   $ echo unknown > unknown
   $ hg shelve -u
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg status
   $ touch unknown
   $ hg add unknown
   $ hg status
   A unknown
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 1:098df96e7410 "(changes in empty repository)" (tip)
   merging unknown
   $ hg status
   A unknown
   $ hg forget unknown
   $ rm unknown
 
 And if I shelve, commit, then unshelve, does it become modified?
 
   $ echo unknown > unknown
   $ hg shelve -u
   shelved as default
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg status
   $ touch unknown
   $ hg add unknown
   $ hg commit -qm "Add unknown"
   $ hg status
   $ hg unshelve
   unshelving change 'default'
   rebasing shelved changes
   rebasing 1:098df96e7410 "(changes in empty repository)" (tip)
   merging unknown
   $ hg status
   M unknown
   $ hg remove --force unknown
   $ hg commit -qm "Remove unknown"
 
   $ cd ..
 
 We expects that non-bare shelve keeps newly created branch in
 working directory.
 
   $ hg init shelve-preserve-new-branch
   $ cd shelve-preserve-new-branch
   $ echo "a" >> a
   $ hg add a
   $ echo "b" >> b
   $ hg add b
   $ hg commit -m "ab"
   $ echo "aa" >> a
   $ echo "bb" >> b
   $ hg branch new-branch
   marked working directory as branch new-branch
   (branches are permanent and global, did you want a bookmark?)
   $ hg status
   M a
   M b
   $ hg branch
   new-branch
   $ hg shelve a
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   new-branch
   $ hg status
   M b
   $ touch "c" >> c
   $ hg add c
   $ hg status
   M b
   A c
   $ hg shelve --exclude c
   shelved as default-01
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   new-branch
   $ hg status
   A c
   $ hg shelve --include c
   shelved as default-02
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch
   new-branch
   $ hg status
   $ echo "d" >> d
   $ hg add d
   $ hg status
   A d
 
 We expect that bare-shelve will not keep branch in current working directory.
 
   $ hg shelve
   shelved as default-03
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg branch
   default
 
 When i shelve commit on newly created branch i expect
 that after unshelve newly created branch will be preserved.
 
   $ hg init shelve_on_new_branch_simple
   $ cd shelve_on_new_branch_simple
   $ echo "aaa" >> a
   $ hg commit -A -m "a"
   adding a
   $ hg branch
   default
   $ hg branch test
   marked working directory as branch test
   (branches are permanent and global, did you want a bookmark?)
   $ echo "bbb" >> a
   $ hg status
   M a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   default
   $ echo "bbb" >> b
   $ hg status
   ? b
   $ hg unshelve
   unshelving change 'default'
   marked working directory as branch test
   $ hg status
   M a
   ? b
   $ hg branch
   test
 
 When i shelve commit on newly created branch, make
 some changes, unshelve it and running into merge
 conflicts i expect that after fixing them and
 running unshelve --continue newly created branch
 will be preserved.
 
   $ hg init shelve_on_new_branch_conflict
   $ cd shelve_on_new_branch_conflict
   $ echo "aaa" >> a
   $ hg commit -A -m "a"
   adding a
   $ hg branch
   default
   $ hg branch test
   marked working directory as branch test
   (branches are permanent and global, did you want a bookmark?)
   $ echo "bbb" >> a
   $ hg status
   M a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   default
   $ echo "ccc" >> a
   $ hg status
   M a
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 2:425c97ef07f3 "changes to: a" (tip)
   merging a
   warning: conflicts while merging a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
   $ echo "aaabbbccc" > a
   $ rm a.orig
   $ hg resolve --mark a
   (no more unresolved files)
   continue: hg unshelve --continue
   $ hg unshelve --continue
   rebasing 2:425c97ef07f3 "changes to: a" (tip)
   marked working directory as branch test
   unshelve of 'default' complete
   $ cat a
   aaabbbccc
   $ hg status
   M a
   $ hg branch
   test
   $ hg commit -m "test-commit"
 
 When i shelve on test branch, update to default branch
 and unshelve i expect that it will not preserve previous
 test branch.
 
   $ echo "xxx" > b
   $ hg add b
   $ hg shelve
   shelved as test
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg update -r default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg unshelve
   unshelving change 'test'
   rebasing shelved changes
   rebasing 2:357525f34729 "changes to: test-commit" (tip)
   $ hg status
   A b
   $ hg branch
   default
 
 When i unshelve resulting in merge conflicts and makes saved
 file shelvedstate looks like in previous versions in
 mercurial(without restore branch information in 7th line) i
 expect that after resolving conflicts and succesfully
 running 'shelve --continue' the branch information won't be
 restored and branch will be unchanged.
 
 shelve on new branch, conflict with previous shelvedstate
 
   $ hg init conflict
   $ cd conflict
   $ echo "aaa" >> a
   $ hg commit -A -m "a"
   adding a
   $ hg branch
   default
   $ hg branch test
   marked working directory as branch test
   (branches are permanent and global, did you want a bookmark?)
   $ echo "bbb" >> a
   $ hg status
   M a
   $ hg shelve
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   default
   $ echo "ccc" >> a
   $ hg status
   M a
   $ hg unshelve
   unshelving change 'default'
   temporarily committing pending changes (restore with 'hg unshelve --abort')
   rebasing shelved changes
   rebasing 2:425c97ef07f3 "changes to: a" (tip)
   merging a
   warning: conflicts while merging a! (edit, then use 'hg resolve --mark')
   unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
   [1]
 
 Removing restore branch information from shelvedstate file(making it looks like
 in previous versions) and running unshelve --continue
 
   $ head -n 6 < .hg/shelvedstate > .hg/shelvedstate_oldformat
   $ rm .hg/shelvedstate
   $ mv .hg/shelvedstate_oldformat .hg/shelvedstate
 
   $ echo "aaabbbccc" > a
   $ rm a.orig
   $ hg resolve --mark a
   (no more unresolved files)
   continue: hg unshelve --continue
   $ hg unshelve --continue
   rebasing 2:425c97ef07f3 "changes to: a" (tip)
   unshelve of 'default' complete
   $ cat a
   aaabbbccc
   $ hg status
   M a
   $ hg branch
   default
 
 On non bare shelve the branch information shouldn't be restored
 
   $ hg init bare_shelve_on_new_branch
   $ cd bare_shelve_on_new_branch
   $ echo "aaa" >> a
   $ hg commit -A -m "a"
   adding a
   $ hg branch
   default
   $ hg branch test
   marked working directory as branch test
   (branches are permanent and global, did you want a bookmark?)
   $ echo "bbb" >> a
   $ hg status
   M a
   $ hg shelve a
   shelved as default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg branch
   test
   $ hg branch default
   marked working directory as branch default
   (branches are permanent and global, did you want a bookmark?)
   $ echo "bbb" >> b
   $ hg status
   ? b
   $ hg unshelve
   unshelving change 'default'
   $ hg status
   M a
   ? b
   $ hg branch
   default
+  $ cd ..
+
+Prepare unshleve with a corrupted shelvedstate
+  $ hg init r1 && cd r1
+  $ echo text1 > file && hg add file
+  $ hg shelve
+  shelved as default
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ echo text2 > file && hg ci -Am text1
+  adding file
+  $ hg unshelve
+  unshelving change 'default'
+  rebasing shelved changes
+  rebasing 1:396ea74229f9 "(changes in empty repository)" (tip)
+  merging file
+  warning: conflicts while merging file! (edit, then use 'hg resolve --mark')
+  unresolved conflicts (see 'hg resolve', then 'hg unshelve --continue')
+  [1]
+  $ echo somethingsomething > .hg/shelvedstate
+
+Unshelve --continue fails with appropriate message if shelvedstate is corrupted
+  $ hg unshelve --continue
+  abort: corrupted shelved state file
+  (please run hg unshelve --abort to abort unshelve operation)
+  [255]
+
+Unshelve --abort works with a corrupted shelvedstate
+  $ hg unshelve --abort
+  could not read shelved state file, your working copy may be in an unexpected state
+  please update to some commit
+
+Unshelve --abort fails with appropriate message if there's no unshelve in
+progress
+  $ hg unshelve --abort
+  abort: no unshelve in progress
+  [255]
+  $ cd ..