mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 08:47:12 +03:00
228 lines
7.4 KiB
Python
228 lines
7.4 KiB
Python
# git.py - git server bridge
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#
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# Copyright 2008 Scott Chacon <schacon at gmail dot com>
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# also some code (and help) borrowed from durin42
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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'''push and pull from a Git server
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This extension lets you communicate (push and pull) with a Git server.
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This way you can use Git hosting for your project or collaborate with a
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project that is in Git. A bridger of worlds, this plugin be.
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Try hg clone git:// or hg clone git+ssh://
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For more information and instructions, see :hg:`help git`
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'''
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from bisect import insort
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import inspect
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import os
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from mercurial import bundlerepo
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from mercurial import commands
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from mercurial import demandimport
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from mercurial import dirstate
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from mercurial import discovery
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from mercurial import extensions
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from mercurial import help
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from mercurial import hg
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from mercurial import ignore
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from mercurial import localrepo
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from mercurial import revset
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from mercurial import templatekw
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from mercurial import util as hgutil
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from mercurial import url
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from mercurial.i18n import _
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demandimport.ignore.extend([
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'collections',
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])
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import gitrepo, hgrepo
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from git_handler import GitHandler
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testedwith = '2.0.2 2.1.2 2.2.3 2.8.1'
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buglink = 'https://bitbucket.org/durin42/hg-git/issues'
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# support for `hg clone git://github.com/defunkt/facebox.git`
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# also hg clone git+ssh://git@github.com/schacon/simplegit.git
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_gitschemes = ('git', 'git+ssh', 'git+http', 'git+https')
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for _scheme in _gitschemes:
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hg.schemes[_scheme] = gitrepo
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# support for `hg clone localgitrepo`
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_oldlocal = hg.schemes['file']
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try:
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urlcls = hgutil.url
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except AttributeError:
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class urlcls(object):
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def __init__(self, path):
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self.p = hgutil.drop_scheme('file', path)
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def localpath(self):
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return self.p
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def _local(path):
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p = urlcls(path).localpath()
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if (os.path.exists(os.path.join(p, '.git')) and
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not os.path.exists(os.path.join(p, '.hg'))):
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return gitrepo
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# detect a bare repository
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if (os.path.exists(os.path.join(p, 'HEAD')) and
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os.path.exists(os.path.join(p, 'objects')) and
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os.path.exists(os.path.join(p, 'refs')) and
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not os.path.exists(os.path.join(p, '.hg'))):
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return gitrepo
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return _oldlocal(path)
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hg.schemes['file'] = _local
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hgdefaultdest = hg.defaultdest
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def defaultdest(source):
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for scheme in _gitschemes:
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if source.startswith('%s://' % scheme) and source.endswith('.git'):
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source = source[:-4]
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break
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return hgdefaultdest(source)
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hg.defaultdest = defaultdest
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# defend against tracebacks if we specify -r in 'hg pull'
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def safebranchrevs(orig, lrepo, repo, branches, revs):
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revs, co = orig(lrepo, repo, branches, revs)
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if getattr(lrepo, 'changelog', False) and co not in lrepo.changelog:
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co = None
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return revs, co
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if getattr(hg, 'addbranchrevs', False):
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extensions.wrapfunction(hg, 'addbranchrevs', safebranchrevs)
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def extsetup():
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templatekw.keywords.update({'gitnode': gitnodekw})
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revset.symbols.update({
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'fromgit': revset_fromgit, 'gitnode': revset_gitnode
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})
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helpdir = os.path.join(os.path.dirname(__file__), 'help')
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entry = (['git'], _("Working with Git Repositories"),
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lambda: open(os.path.join(helpdir, 'git.rst')).read())
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insort(help.helptable, entry)
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def reposetup(ui, repo):
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if not isinstance(repo, gitrepo.gitrepo):
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klass = hgrepo.generate_repo_subclass(repo.__class__)
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repo.__class__ = klass
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def gimport(ui, repo, remote_name=None):
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repo.githandler.import_commits(remote_name)
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def gexport(ui, repo):
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repo.githandler.export_commits()
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def gclear(ui, repo):
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repo.ui.status(_("clearing out the git cache data\n"))
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repo.githandler.clear()
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from mercurial import dirstate
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from mercurial import ignore
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if (getattr(dirstate, 'rootcache', False) and
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getattr(ignore, 'readpats', False)):
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# only install our dirstate wrapper if it has a hope of working
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import gitdirstate
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extensions.wrapfunction(ignore, 'ignore', gitdirstate.gignore)
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dirstate.dirstate = gitdirstate.gitdirstate
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def git_cleanup(ui, repo):
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new_map = []
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for line in repo.opener(GitHandler.mapfile):
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gitsha, hgsha = line.strip().split(' ', 1)
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if hgsha in repo:
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new_map.append('%s %s\n' % (gitsha, hgsha))
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f = repo.opener(GitHandler.mapfile, 'wb')
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map(f.write, new_map)
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ui.status(_('git commit map cleaned\n'))
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def findcommonoutgoing(orig, repo, other, *args, **kwargs):
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if isinstance(other, gitrepo.gitrepo):
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heads = repo.githandler.get_refs(other.path)[0]
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kw = {}
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kw.update(kwargs)
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for val, k in zip(args,
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('onlyheads', 'force', 'commoninc', 'portable')):
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kw[k] = val
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force = kw.get('force', False)
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commoninc = kw.get('commoninc', None)
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if commoninc is None:
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commoninc = discovery.findcommonincoming(repo, other,
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heads=heads, force=force)
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kw['commoninc'] = commoninc
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return orig(repo, other, **kw)
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return orig(repo, other, *args, **kwargs)
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extensions.wrapfunction(discovery, 'findcommonoutgoing', findcommonoutgoing)
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def getremotechanges(orig, ui, repo, other, *args, **opts):
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if isinstance(other, gitrepo.gitrepo):
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if args:
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revs = args[0]
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else:
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revs = opts.get('onlyheads', opts.get('revs'))
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r, c, cleanup = repo.githandler.getremotechanges(other, revs)
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# ugh. This is ugly even by mercurial API compatibility standards
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if 'onlyheads' not in orig.func_code.co_varnames:
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cleanup = None
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return r, c, cleanup
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return orig(ui, repo, other, *args, **opts)
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extensions.wrapfunction(bundlerepo, 'getremotechanges', getremotechanges)
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def peer(orig, uiorrepo, *args, **opts):
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newpeer = orig(uiorrepo, *args, **opts)
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if isinstance(newpeer, gitrepo.gitrepo):
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if isinstance(uiorrepo, localrepo.localrepository):
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newpeer.localrepo = uiorrepo
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return newpeer
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extensions.wrapfunction(hg, 'peer', peer)
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def revset_fromgit(repo, subset, x):
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'''``fromgit()``
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Select changesets that originate from Git.
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'''
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args = revset.getargs(x, 0, 0, "fromgit takes no arguments")
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git = repo.githandler
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return [r for r in subset if git.map_git_get(repo[r].hex()) is not None]
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def revset_gitnode(repo, subset, x):
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'''``gitnode(hash)``
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Select changesets that originate in the given Git revision.
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'''
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args = revset.getargs(x, 1, 1, "gitnode takes one argument")
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rev = revset.getstring(args[0],
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"the argument to gitnode() must be a hash")
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git = repo.githandler
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def matches(r):
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gitnode = git.map_git_get(repo[r].hex())
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if gitnode is None:
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return False
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return rev in [gitnode, gitnode[:12]]
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return [r for r in subset if matches(r)]
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def gitnodekw(**args):
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""":gitnode: String. The Git changeset identification hash, as a 40 hexadecimal digit string."""
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node = args['ctx']
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repo = args['repo']
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gitnode = repo.githandler.map_git_get(node.hex())
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if gitnode is None:
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gitnode = ''
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return gitnode
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cmdtable = {
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"gimport":
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(gimport, [], _('hg gimport')),
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"gexport":
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(gexport, [], _('hg gexport')),
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"gclear":
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(gclear, [], _('Clears out the Git cached data')),
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"git-cleanup": (git_cleanup, [], _(
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"Cleans up git repository after history editing"))
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}
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