Mercurial > hg
view mercurial/bookmarks.py @ 14321:003d63bb4fa5
scmutil: drop some aliases in cmdutil
author | Matt Mackall <mpm@selenic.com> |
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date | Fri, 13 May 2011 14:48:48 -0500 |
parents | a55a0045704c |
children | e29821ca94cf |
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# Mercurial bookmark support code # # Copyright 2008 David Soria Parra <dsp@php.net> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from mercurial.i18n import _ from mercurial.node import hex from mercurial import encoding, error, util import errno, os def valid(mark): for c in (':', '\0', '\n', '\r'): if c in mark: return False return True def read(repo): '''Parse .hg/bookmarks file and return a dictionary Bookmarks are stored as {HASH}\\s{NAME}\\n (localtags format) values in the .hg/bookmarks file. Read the file and return a (name=>nodeid) dictionary ''' bookmarks = {} try: for line in repo.opener('bookmarks'): sha, refspec = line.strip().split(' ', 1) refspec = encoding.tolocal(refspec) try: bookmarks[refspec] = repo.changelog.lookup(sha) except error.RepoLookupError: pass except IOError, inst: if inst.errno != errno.ENOENT: raise return bookmarks def readcurrent(repo): '''Get the current bookmark If we use gittishsh branches we have a current bookmark that we are on. This function returns the name of the bookmark. It is stored in .hg/bookmarks.current ''' mark = None try: file = repo.opener('bookmarks.current') except IOError, inst: if inst.errno != errno.ENOENT: raise return None try: # No readline() in posixfile_nt, reading everything is cheap mark = encoding.tolocal((file.readlines() or [''])[0]) if mark == '' or mark not in repo._bookmarks: mark = None finally: file.close() return mark def write(repo): '''Write bookmarks Write the given bookmark => hash dictionary to the .hg/bookmarks file in a format equal to those of localtags. We also store a backup of the previous state in undo.bookmarks that can be copied back on rollback. ''' refs = repo._bookmarks if repo._bookmarkcurrent not in refs: setcurrent(repo, None) for mark in refs.keys(): if not valid(mark): raise util.Abort(_("bookmark '%s' contains illegal " "character" % mark)) wlock = repo.wlock() try: file = repo.opener('bookmarks', 'w', atomictemp=True) for refspec, node in refs.iteritems(): file.write("%s %s\n" % (hex(node), encoding.fromlocal(refspec))) file.rename() # touch 00changelog.i so hgweb reloads bookmarks (no lock needed) try: os.utime(repo.sjoin('00changelog.i'), None) except OSError: pass finally: wlock.release() def setcurrent(repo, mark): '''Set the name of the bookmark that we are currently on Set the name of the bookmark that we are on (hg update <bookmark>). The name is recorded in .hg/bookmarks.current ''' current = repo._bookmarkcurrent if current == mark: return if mark not in repo._bookmarks: mark = '' if not valid(mark): raise util.Abort(_("bookmark '%s' contains illegal " "character" % mark)) wlock = repo.wlock() try: file = repo.opener('bookmarks.current', 'w', atomictemp=True) file.write(mark) file.rename() finally: wlock.release() repo._bookmarkcurrent = mark def updatecurrentbookmark(repo, oldnode, curbranch): try: update(repo, oldnode, repo.branchtags()[curbranch]) except KeyError: if curbranch == "default": # no default branch! update(repo, oldnode, repo.lookup("tip")) else: raise util.Abort(_("branch %s not found") % curbranch) def update(repo, parents, node): marks = repo._bookmarks update = False mark = repo._bookmarkcurrent if mark and marks[mark] in parents: old = repo[marks[mark]] new = repo[node] if new in old.descendants(): marks[mark] = new.node() update = True if update: write(repo) def listbookmarks(repo): # We may try to list bookmarks on a repo type that does not # support it (e.g., statichttprepository). if not hasattr(repo, '_bookmarks'): return {} d = {} for k, v in repo._bookmarks.iteritems(): d[k] = hex(v) return d def pushbookmark(repo, key, old, new): w = repo.wlock() try: marks = repo._bookmarks if hex(marks.get(key, '')) != old: return False if new == '': del marks[key] else: if new not in repo: return False marks[key] = repo[new].node() write(repo) return True finally: w.release() def updatefromremote(ui, repo, remote): ui.debug("checking for updated bookmarks\n") rb = remote.listkeys('bookmarks') changed = False for k in rb.keys(): if k in repo._bookmarks: nr, nl = rb[k], repo._bookmarks[k] if nr in repo: cr = repo[nr] cl = repo[nl] if cl.rev() >= cr.rev(): continue if cr in cl.descendants(): repo._bookmarks[k] = cr.node() changed = True ui.status(_("updating bookmark %s\n") % k) else: ui.warn(_("not updating divergent" " bookmark %s\n") % k) if changed: write(repo) def diff(ui, repo, remote): ui.status(_("searching for changed bookmarks\n")) lmarks = repo.listkeys('bookmarks') rmarks = remote.listkeys('bookmarks') diff = sorted(set(rmarks) - set(lmarks)) for k in diff: ui.write(" %-25s %s\n" % (k, rmarks[k][:12])) if len(diff) <= 0: ui.status(_("no changed bookmarks found\n")) return 1 return 0