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# Mercurial bookmark support code
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#
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# Copyright 2008 David Soria Parra <dsp@php.net>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import errno
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from .i18n import _
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from .node import (
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bin,
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hex,
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)
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from . import (
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encoding,
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error,
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lock as lockmod,
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obsolete,
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txnutil,
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util,
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)
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def _getbkfile(repo):
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"""Hook so that extensions that mess with the store can hook bm storage.
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For core, this just handles wether we should see pending
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bookmarks or the committed ones. Other extensions (like share)
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may need to tweak this behavior further.
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"""
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fp, pending = txnutil.trypending(repo.root, repo.vfs, 'bookmarks')
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return fp
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class bmstore(dict):
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"""Storage for bookmarks.
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This object should do all bookmark-related reads and writes, so
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that it's fairly simple to replace the storage underlying
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bookmarks without having to clone the logic surrounding
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bookmarks. This type also should manage the active bookmark, if
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any.
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This particular bmstore implementation stores bookmarks as
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{hash}\s{name}\n (the same format as localtags) in
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.hg/bookmarks. The mapping is stored as {name: nodeid}.
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"""
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def __init__(self, repo):
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dict.__init__(self)
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self._repo = repo
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self._clean = True
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self._aclean = True
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nm = repo.changelog.nodemap
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tonode = bin # force local lookup
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setitem = dict.__setitem__
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try:
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with _getbkfile(repo) as bkfile:
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for line in bkfile:
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line = line.strip()
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if not line:
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continue
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try:
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sha, refspec = line.split(' ', 1)
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node = tonode(sha)
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if node in nm:
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refspec = encoding.tolocal(refspec)
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setitem(self, refspec, node)
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except (TypeError, ValueError):
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# TypeError:
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# - bin(...)
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# ValueError:
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# - node in nm, for non-20-bytes entry
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# - split(...), for string without ' '
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repo.ui.warn(_('malformed line in .hg/bookmarks: %r\n')
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% line)
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except IOError as inst:
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if inst.errno != errno.ENOENT:
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raise
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self._active = _readactive(repo, self)
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@property
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def active(self):
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return self._active
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@active.setter
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def active(self, mark):
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if mark is not None and mark not in self:
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raise AssertionError('bookmark %s does not exist!' % mark)
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self._active = mark
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self._aclean = False
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def __setitem__(self, *args, **kwargs):
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self._clean = False
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return dict.__setitem__(self, *args, **kwargs)
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def __delitem__(self, key):
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self._clean = False
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return dict.__delitem__(self, key)
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def recordchange(self, tr):
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"""record that bookmarks have been changed in a transaction
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The transaction is then responsible for updating the file content."""
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tr.addfilegenerator('bookmarks', ('bookmarks',), self._write,
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location='plain')
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tr.hookargs['bookmark_moved'] = '1'
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def _writerepo(self, repo):
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"""Factored out for extensibility"""
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rbm = repo._bookmarks
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if rbm.active not in self:
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rbm.active = None
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rbm._writeactive()
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with repo.wlock():
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file_ = repo.vfs('bookmarks', 'w', atomictemp=True,
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checkambig=True)
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try:
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self._write(file_)
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except: # re-raises
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file_.discard()
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raise
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finally:
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file_.close()
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def _writeactive(self):
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if self._aclean:
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return
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with self._repo.wlock():
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if self._active is not None:
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f = self._repo.vfs('bookmarks.current', 'w', atomictemp=True,
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checkambig=True)
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try:
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f.write(encoding.fromlocal(self._active))
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finally:
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f.close()
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else:
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self._repo.vfs.tryunlink('bookmarks.current')
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self._aclean = True
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def _write(self, fp):
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for name, node in self.iteritems():
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fp.write("%s %s\n" % (hex(node), encoding.fromlocal(name)))
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self._clean = True
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self._repo.invalidatevolatilesets()
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def expandname(self, bname):
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if bname == '.':
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if self.active:
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return self.active
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else:
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raise error.Abort(_("no active bookmark"))
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return bname
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def _readactive(repo, marks):
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"""
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Get the active bookmark. We can have an active bookmark that updates
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itself as we commit. This function returns the name of that bookmark.
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It is stored in .hg/bookmarks.current
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"""
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mark = None
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try:
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file = repo.vfs('bookmarks.current')
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except IOError as inst:
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if inst.errno != errno.ENOENT:
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raise
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return None
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try:
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# No readline() in osutil.posixfile, reading everything is
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# cheap.
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# Note that it's possible for readlines() here to raise
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# IOError, since we might be reading the active mark over
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# static-http which only tries to load the file when we try
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# to read from it.
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mark = encoding.tolocal((file.readlines() or [''])[0])
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if mark == '' or mark not in marks:
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mark = None
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except IOError as inst:
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if inst.errno != errno.ENOENT:
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raise
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return None
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finally:
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file.close()
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return mark
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def activate(repo, mark):
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"""
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Set the given bookmark to be 'active', meaning that this bookmark will
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follow new commits that are made.
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The name is recorded in .hg/bookmarks.current
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"""
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repo._bookmarks.active = mark
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repo._bookmarks._writeactive()
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def deactivate(repo):
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"""
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Unset the active bookmark in this repository.
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"""
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repo._bookmarks.active = None
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repo._bookmarks._writeactive()
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def isactivewdirparent(repo):
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"""
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Tell whether the 'active' bookmark (the one that follows new commits)
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points to one of the parents of the current working directory (wdir).
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While this is normally the case, it can on occasion be false; for example,
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immediately after a pull, the active bookmark can be moved to point
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to a place different than the wdir. This is solved by running `hg update`.
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"""
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mark = repo._activebookmark
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marks = repo._bookmarks
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parents = [p.node() for p in repo[None].parents()]
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return (mark in marks and marks[mark] in parents)
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def deletedivergent(repo, deletefrom, bm):
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'''Delete divergent versions of bm on nodes in deletefrom.
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Return True if at least one bookmark was deleted, False otherwise.'''
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deleted = False
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marks = repo._bookmarks
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divergent = [b for b in marks if b.split('@', 1)[0] == bm.split('@', 1)[0]]
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for mark in divergent:
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if mark == '@' or '@' not in mark:
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# can't be divergent by definition
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continue
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if mark and marks[mark] in deletefrom:
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if mark != bm:
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del marks[mark]
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deleted = True
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return deleted
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def headsforactive(repo):
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"""Given a repo with an active bookmark, return divergent bookmark nodes.
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Args:
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repo: A repository with an active bookmark.
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Returns:
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A list of binary node ids that is the full list of other
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revisions with bookmarks divergent from the active bookmark. If
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there were no divergent bookmarks, then this list will contain
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only one entry.
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"""
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if not repo._activebookmark:
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raise ValueError(
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'headsforactive() only makes sense with an active bookmark')
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name = repo._activebookmark.split('@', 1)[0]
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heads = []
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for mark, n in repo._bookmarks.iteritems():
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if mark.split('@', 1)[0] == name:
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heads.append(n)
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return heads
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def calculateupdate(ui, repo, checkout):
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'''Return a tuple (targetrev, movemarkfrom) indicating the rev to
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check out and where to move the active bookmark from, if needed.'''
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movemarkfrom = None
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if checkout is None:
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activemark = repo._activebookmark
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if isactivewdirparent(repo):
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movemarkfrom = repo['.'].node()
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elif activemark:
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ui.status(_("updating to active bookmark %s\n") % activemark)
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checkout = activemark
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return (checkout, movemarkfrom)
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def update(repo, parents, node):
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deletefrom = parents
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marks = repo._bookmarks
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update = False
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active = marks.active
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if not active:
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return False
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if marks[active] in parents:
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new = repo[node]
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divs = [repo[b] for b in marks
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if b.split('@', 1)[0] == active.split('@', 1)[0]]
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anc = repo.changelog.ancestors([new.rev()])
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deletefrom = [b.node() for b in divs if b.rev() in anc or b == new]
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if validdest(repo, repo[marks[active]], new):
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marks[active] = new.node()
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update = True
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if deletedivergent(repo, deletefrom, active):
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update = True
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if update:
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lock = tr = None
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try:
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lock = repo.lock()
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tr = repo.transaction('bookmark')
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marks.recordchange(tr)
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tr.close()
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finally:
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lockmod.release(tr, lock)
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return update
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def listbinbookmarks(repo):
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# We may try to list bookmarks on a repo type that does not
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# support it (e.g., statichttprepository).
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marks = getattr(repo, '_bookmarks', {})
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hasnode = repo.changelog.hasnode
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for k, v in marks.iteritems():
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# don't expose local divergent bookmarks
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if hasnode(v) and ('@' not in k or k.endswith('@')):
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yield k, v
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def listbookmarks(repo):
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d = {}
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for book, node in listbinbookmarks(repo):
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d[book] = hex(node)
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return d
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def pushbookmark(repo, key, old, new):
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w = l = tr = None
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try:
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w = repo.wlock()
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l = repo.lock()
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tr = repo.transaction('bookmarks')
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marks = repo._bookmarks
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existing = hex(marks.get(key, ''))
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if existing != old and existing != new:
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return False
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if new == '':
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del marks[key]
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else:
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if new not in repo:
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return False
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marks[key] = repo[new].node()
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marks.recordchange(tr)
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tr.close()
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return True
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finally:
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lockmod.release(tr, l, w)
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def comparebookmarks(repo, srcmarks, dstmarks, targets=None):
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'''Compare bookmarks between srcmarks and dstmarks
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This returns tuple "(addsrc, adddst, advsrc, advdst, diverge,
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differ, invalid)", each are list of bookmarks below:
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:addsrc: added on src side (removed on dst side, perhaps)
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:adddst: added on dst side (removed on src side, perhaps)
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:advsrc: advanced on src side
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:advdst: advanced on dst side
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:diverge: diverge
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:differ: changed, but changeset referred on src is unknown on dst
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:invalid: unknown on both side
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:same: same on both side
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Each elements of lists in result tuple is tuple "(bookmark name,
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changeset ID on source side, changeset ID on destination
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side)". Each changeset IDs are 40 hexadecimal digit string or
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None.
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Changeset IDs of tuples in "addsrc", "adddst", "differ" or
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"invalid" list may be unknown for repo.
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If "targets" is specified, only bookmarks listed in it are
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examined.
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'''
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if targets:
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bset = set(targets)
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else:
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srcmarkset = set(srcmarks)
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dstmarkset = set(dstmarks)
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bset = srcmarkset | dstmarkset
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results = ([], [], [], [], [], [], [], [])
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addsrc = results[0].append
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adddst = results[1].append
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advsrc = results[2].append
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advdst = results[3].append
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diverge = results[4].append
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differ = results[5].append
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invalid = results[6].append
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same = results[7].append
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for b in sorted(bset):
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if b not in srcmarks:
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if b in dstmarks:
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adddst((b, None, dstmarks[b]))
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else:
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invalid((b, None, None))
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elif b not in dstmarks:
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addsrc((b, srcmarks[b], None))
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else:
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scid = srcmarks[b]
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dcid = dstmarks[b]
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if scid == dcid:
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same((b, scid, dcid))
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elif scid in repo and dcid in repo:
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sctx = repo[scid]
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dctx = repo[dcid]
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if sctx.rev() < dctx.rev():
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if validdest(repo, sctx, dctx):
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advdst((b, scid, dcid))
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else:
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diverge((b, scid, dcid))
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else:
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if validdest(repo, dctx, sctx):
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advsrc((b, scid, dcid))
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else:
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diverge((b, scid, dcid))
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else:
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# it is too expensive to examine in detail, in this case
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differ((b, scid, dcid))
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return results
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def _diverge(ui, b, path, localmarks, remotenode):
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'''Return appropriate diverged bookmark for specified ``path``
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This returns None, if it is failed to assign any divergent
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bookmark name.
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This reuses already existing one with "@number" suffix, if it
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refers ``remotenode``.
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'''
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if b == '@':
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b = ''
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# try to use an @pathalias suffix
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# if an @pathalias already exists, we overwrite (update) it
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if path.startswith("file:"):
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path = util.url(path).path
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for p, u in ui.configitems("paths"):
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if u.startswith("file:"):
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u = util.url(u).path
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if path == u:
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return '%s@%s' % (b, p)
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# assign a unique "@number" suffix newly
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for x in range(1, 100):
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n = '%s@%d' % (b, x)
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if n not in localmarks or localmarks[n] == remotenode:
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return n
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return None
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def unhexlifybookmarks(marks):
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binremotemarks = {}
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for name, node in marks.items():
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binremotemarks[name] = bin(node)
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return binremotemarks
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def updatefromremote(ui, repo, remotemarks, path, trfunc, explicit=()):
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ui.debug("checking for updated bookmarks\n")
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localmarks = repo._bookmarks
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(addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same
|
|
|
) = comparebookmarks(repo, remotemarks, localmarks)
|
|
|
|
|
|
status = ui.status
|
|
|
warn = ui.warn
|
|
|
if ui.configbool('ui', 'quietbookmarkmove', False):
|
|
|
status = warn = ui.debug
|
|
|
|
|
|
explicit = set(explicit)
|
|
|
changed = []
|
|
|
for b, scid, dcid in addsrc:
|
|
|
if scid in repo: # add remote bookmarks for changes we already have
|
|
|
changed.append((b, scid, status,
|
|
|
_("adding remote bookmark %s\n") % (b)))
|
|
|
elif b in explicit:
|
|
|
explicit.remove(b)
|
|
|
ui.warn(_("remote bookmark %s points to locally missing %s\n")
|
|
|
% (b, hex(scid)[:12]))
|
|
|
|
|
|
for b, scid, dcid in advsrc:
|
|
|
changed.append((b, scid, status,
|
|
|
_("updating bookmark %s\n") % (b)))
|
|
|
# remove normal movement from explicit set
|
|
|
explicit.difference_update(d[0] for d in changed)
|
|
|
|
|
|
for b, scid, dcid in diverge:
|
|
|
if b in explicit:
|
|
|
explicit.discard(b)
|
|
|
changed.append((b, scid, status,
|
|
|
_("importing bookmark %s\n") % (b)))
|
|
|
else:
|
|
|
db = _diverge(ui, b, path, localmarks, scid)
|
|
|
if db:
|
|
|
changed.append((db, scid, warn,
|
|
|
_("divergent bookmark %s stored as %s\n") %
|
|
|
(b, db)))
|
|
|
else:
|
|
|
warn(_("warning: failed to assign numbered name "
|
|
|
"to divergent bookmark %s\n") % (b))
|
|
|
for b, scid, dcid in adddst + advdst:
|
|
|
if b in explicit:
|
|
|
explicit.discard(b)
|
|
|
changed.append((b, scid, status,
|
|
|
_("importing bookmark %s\n") % (b)))
|
|
|
for b, scid, dcid in differ:
|
|
|
if b in explicit:
|
|
|
explicit.remove(b)
|
|
|
ui.warn(_("remote bookmark %s points to locally missing %s\n")
|
|
|
% (b, hex(scid)[:12]))
|
|
|
|
|
|
if changed:
|
|
|
tr = trfunc()
|
|
|
for b, node, writer, msg in sorted(changed):
|
|
|
localmarks[b] = node
|
|
|
writer(msg)
|
|
|
localmarks.recordchange(tr)
|
|
|
|
|
|
def incoming(ui, repo, other):
|
|
|
'''Show bookmarks incoming from other to repo
|
|
|
'''
|
|
|
ui.status(_("searching for changed bookmarks\n"))
|
|
|
|
|
|
remotemarks = unhexlifybookmarks(other.listkeys('bookmarks'))
|
|
|
r = comparebookmarks(repo, remotemarks, repo._bookmarks)
|
|
|
addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same = r
|
|
|
|
|
|
incomings = []
|
|
|
if ui.debugflag:
|
|
|
getid = lambda id: id
|
|
|
else:
|
|
|
getid = lambda id: id[:12]
|
|
|
if ui.verbose:
|
|
|
def add(b, id, st):
|
|
|
incomings.append(" %-25s %s %s\n" % (b, getid(id), st))
|
|
|
else:
|
|
|
def add(b, id, st):
|
|
|
incomings.append(" %-25s %s\n" % (b, getid(id)))
|
|
|
for b, scid, dcid in addsrc:
|
|
|
# i18n: "added" refers to a bookmark
|
|
|
add(b, hex(scid), _('added'))
|
|
|
for b, scid, dcid in advsrc:
|
|
|
# i18n: "advanced" refers to a bookmark
|
|
|
add(b, hex(scid), _('advanced'))
|
|
|
for b, scid, dcid in diverge:
|
|
|
# i18n: "diverged" refers to a bookmark
|
|
|
add(b, hex(scid), _('diverged'))
|
|
|
for b, scid, dcid in differ:
|
|
|
# i18n: "changed" refers to a bookmark
|
|
|
add(b, hex(scid), _('changed'))
|
|
|
|
|
|
if not incomings:
|
|
|
ui.status(_("no changed bookmarks found\n"))
|
|
|
return 1
|
|
|
|
|
|
for s in sorted(incomings):
|
|
|
ui.write(s)
|
|
|
|
|
|
return 0
|
|
|
|
|
|
def outgoing(ui, repo, other):
|
|
|
'''Show bookmarks outgoing from repo to other
|
|
|
'''
|
|
|
ui.status(_("searching for changed bookmarks\n"))
|
|
|
|
|
|
remotemarks = unhexlifybookmarks(other.listkeys('bookmarks'))
|
|
|
r = comparebookmarks(repo, repo._bookmarks, remotemarks)
|
|
|
addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same = r
|
|
|
|
|
|
outgoings = []
|
|
|
if ui.debugflag:
|
|
|
getid = lambda id: id
|
|
|
else:
|
|
|
getid = lambda id: id[:12]
|
|
|
if ui.verbose:
|
|
|
def add(b, id, st):
|
|
|
outgoings.append(" %-25s %s %s\n" % (b, getid(id), st))
|
|
|
else:
|
|
|
def add(b, id, st):
|
|
|
outgoings.append(" %-25s %s\n" % (b, getid(id)))
|
|
|
for b, scid, dcid in addsrc:
|
|
|
# i18n: "added refers to a bookmark
|
|
|
add(b, hex(scid), _('added'))
|
|
|
for b, scid, dcid in adddst:
|
|
|
# i18n: "deleted" refers to a bookmark
|
|
|
add(b, ' ' * 40, _('deleted'))
|
|
|
for b, scid, dcid in advsrc:
|
|
|
# i18n: "advanced" refers to a bookmark
|
|
|
add(b, hex(scid), _('advanced'))
|
|
|
for b, scid, dcid in diverge:
|
|
|
# i18n: "diverged" refers to a bookmark
|
|
|
add(b, hex(scid), _('diverged'))
|
|
|
for b, scid, dcid in differ:
|
|
|
# i18n: "changed" refers to a bookmark
|
|
|
add(b, hex(scid), _('changed'))
|
|
|
|
|
|
if not outgoings:
|
|
|
ui.status(_("no changed bookmarks found\n"))
|
|
|
return 1
|
|
|
|
|
|
for s in sorted(outgoings):
|
|
|
ui.write(s)
|
|
|
|
|
|
return 0
|
|
|
|
|
|
def summary(repo, other):
|
|
|
'''Compare bookmarks between repo and other for "hg summary" output
|
|
|
|
|
|
This returns "(# of incoming, # of outgoing)" tuple.
|
|
|
'''
|
|
|
remotemarks = unhexlifybookmarks(other.listkeys('bookmarks'))
|
|
|
r = comparebookmarks(repo, remotemarks, repo._bookmarks)
|
|
|
addsrc, adddst, advsrc, advdst, diverge, differ, invalid, same = r
|
|
|
return (len(addsrc), len(adddst))
|
|
|
|
|
|
def validdest(repo, old, new):
|
|
|
"""Is the new bookmark destination a valid update from the old one"""
|
|
|
repo = repo.unfiltered()
|
|
|
if old == new:
|
|
|
# Old == new -> nothing to update.
|
|
|
return False
|
|
|
elif not old:
|
|
|
# old is nullrev, anything is valid.
|
|
|
# (new != nullrev has been excluded by the previous check)
|
|
|
return True
|
|
|
elif repo.obsstore:
|
|
|
return new.node() in obsolete.foreground(repo, [old.node()])
|
|
|
else:
|
|
|
# still an independent clause as it is lazier (and therefore faster)
|
|
|
return old.descendant(new)
|
|
|
|
