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https://github.com/facebook/sapling.git
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dc23a7db18
A new function (extensions.extensions) allows the code that is interested in those attributes to handle them directly. This allows some cleanups of extensions.py. Notably, we can remove the extensions.commandtable hack. It also makes it easier to add standard extension attributes, like a "hgwebsetup" function or a "helptable" dict that augments the data in help.py, etc.
294 lines
9.4 KiB
Python
294 lines
9.4 KiB
Python
# hg.py - repository classes for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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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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from node import *
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from repo import *
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from i18n import _
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import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo
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import errno, lock, os, shutil, util, extensions
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import merge as _merge
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import verify as _verify
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def _local(path):
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return (os.path.isfile(util.drop_scheme('file', path)) and
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bundlerepo or localrepo)
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def parseurl(url, revs):
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'''parse url#branch, returning url, branch + revs'''
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if '#' not in url:
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return url, (revs or None)
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url, rev = url.split('#', 1)
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return url, revs + [rev]
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schemes = {
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'bundle': bundlerepo,
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'file': _local,
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'http': httprepo,
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'https': httprepo,
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'ssh': sshrepo,
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'static-http': statichttprepo,
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}
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def _lookup(path):
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scheme = 'file'
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if path:
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c = path.find(':')
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if c > 0:
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scheme = path[:c]
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thing = schemes.get(scheme) or schemes['file']
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try:
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return thing(path)
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except TypeError:
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return thing
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def islocal(repo):
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'''return true if repo or path is local'''
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if isinstance(repo, str):
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try:
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return _lookup(repo).islocal(repo)
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except AttributeError:
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return False
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return repo.local()
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def repository(ui, path='', create=False):
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"""return a repository object for the specified path"""
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repo = _lookup(path).instance(ui, path, create)
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ui = getattr(repo, "ui", ui)
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for name, module in extensions.extensions():
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hook = getattr(module, 'reposetup', None)
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if hook:
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hook(ui, repo)
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return repo
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def defaultdest(source):
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'''return default destination of clone if none is given'''
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return os.path.basename(os.path.normpath(source))
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def clone(ui, source, dest=None, pull=False, rev=None, update=True,
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stream=False):
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"""Make a copy of an existing repository.
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Create a copy of an existing repository in a new directory. The
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source and destination are URLs, as passed to the repository
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function. Returns a pair of repository objects, the source and
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newly created destination.
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The location of the source is added to the new repository's
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.hg/hgrc file, as the default to be used for future pulls and
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pushes.
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If an exception is raised, the partly cloned/updated destination
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repository will be deleted.
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Arguments:
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source: repository object or URL
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dest: URL of destination repository to create (defaults to base
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name of source repository)
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pull: always pull from source repository, even in local case
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stream: stream raw data uncompressed from repository (fast over
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LAN, slow over WAN)
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rev: revision to clone up to (implies pull=True)
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update: update working directory after clone completes, if
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destination is local repository
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"""
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origsource = source
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source, rev = parseurl(ui.expandpath(source), rev)
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if isinstance(source, str):
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src_repo = repository(ui, source)
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else:
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src_repo = source
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source = src_repo.url()
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if dest is None:
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dest = defaultdest(source)
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ui.status(_("destination directory: %s\n") % dest)
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def localpath(path):
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if path.startswith('file://'):
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return path[7:]
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if path.startswith('file:'):
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return path[5:]
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return path
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dest = localpath(dest)
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source = localpath(source)
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if os.path.exists(dest):
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raise util.Abort(_("destination '%s' already exists") % dest)
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class DirCleanup(object):
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def __init__(self, dir_):
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self.rmtree = shutil.rmtree
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self.dir_ = dir_
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def close(self):
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self.dir_ = None
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def __del__(self):
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if self.dir_:
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self.rmtree(self.dir_, True)
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src_lock = dest_lock = dir_cleanup = None
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try:
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if islocal(dest):
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dir_cleanup = DirCleanup(dest)
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abspath = origsource
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copy = False
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if src_repo.local() and islocal(dest):
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abspath = os.path.abspath(origsource)
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copy = not pull and not rev
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if copy:
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try:
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# we use a lock here because if we race with commit, we
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# can end up with extra data in the cloned revlogs that's
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# not pointed to by changesets, thus causing verify to
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# fail
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src_lock = src_repo.lock()
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except lock.LockException:
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copy = False
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if copy:
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def force_copy(src, dst):
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try:
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util.copyfiles(src, dst)
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except OSError, inst:
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if inst.errno != errno.ENOENT:
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raise
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src_store = os.path.realpath(src_repo.spath)
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if not os.path.exists(dest):
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os.mkdir(dest)
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dest_path = os.path.realpath(os.path.join(dest, ".hg"))
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os.mkdir(dest_path)
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if src_repo.spath != src_repo.path:
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dest_store = os.path.join(dest_path, "store")
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os.mkdir(dest_store)
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else:
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dest_store = dest_path
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# copy the requires file
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force_copy(src_repo.join("requires"),
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os.path.join(dest_path, "requires"))
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# we lock here to avoid premature writing to the target
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dest_lock = lock.lock(os.path.join(dest_store, "lock"))
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files = ("data",
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"00manifest.d", "00manifest.i",
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"00changelog.d", "00changelog.i")
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for f in files:
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src = os.path.join(src_store, f)
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dst = os.path.join(dest_store, f)
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force_copy(src, dst)
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# we need to re-init the repo after manually copying the data
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# into it
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dest_repo = repository(ui, dest)
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else:
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dest_repo = repository(ui, dest, create=True)
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revs = None
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if rev:
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if 'lookup' not in src_repo.capabilities:
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raise util.Abort(_("src repository does not support revision "
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"lookup and so doesn't support clone by "
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"revision"))
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revs = [src_repo.lookup(r) for r in rev]
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if dest_repo.local():
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dest_repo.clone(src_repo, heads=revs, stream=stream)
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elif src_repo.local():
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src_repo.push(dest_repo, revs=revs)
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else:
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raise util.Abort(_("clone from remote to remote not supported"))
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if dir_cleanup:
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dir_cleanup.close()
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if dest_repo.local():
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fp = dest_repo.opener("hgrc", "w", text=True)
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fp.write("[paths]\n")
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fp.write("default = %s\n" % abspath)
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fp.close()
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if update:
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try:
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checkout = dest_repo.lookup("default")
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except:
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checkout = dest_repo.changelog.tip()
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_update(dest_repo, checkout)
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return src_repo, dest_repo
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finally:
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del src_lock, dest_lock, dir_cleanup
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def _showstats(repo, stats):
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stats = ((stats[0], _("updated")),
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(stats[1], _("merged")),
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(stats[2], _("removed")),
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(stats[3], _("unresolved")))
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note = ", ".join([_("%d files %s") % s for s in stats])
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repo.ui.status("%s\n" % note)
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def _update(repo, node): return update(repo, node)
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def update(repo, node):
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"""update the working directory to node, merging linear changes"""
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pl = repo.parents()
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stats = _merge.update(repo, node, False, False, None)
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_showstats(repo, stats)
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if stats[3]:
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repo.ui.status(_("There are unresolved merges with"
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" locally modified files.\n"))
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if stats[1]:
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repo.ui.status(_("You can finish the partial merge using:\n"))
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else:
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repo.ui.status(_("You can redo the full merge using:\n"))
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# len(pl)==1, otherwise _merge.update() would have raised util.Abort:
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repo.ui.status(_(" hg update %s\n hg update %s\n")
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% (pl[0].rev(), repo.changectx(node).rev()))
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return stats[3]
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def clean(repo, node, show_stats=True):
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"""forcibly switch the working directory to node, clobbering changes"""
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stats = _merge.update(repo, node, False, True, None)
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if show_stats: _showstats(repo, stats)
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return stats[3]
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def merge(repo, node, force=None, remind=True):
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"""branch merge with node, resolving changes"""
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stats = _merge.update(repo, node, True, force, False)
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_showstats(repo, stats)
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if stats[3]:
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pl = repo.parents()
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repo.ui.status(_("There are unresolved merges,"
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" you can redo the full merge using:\n"
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" hg update -C %s\n"
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" hg merge %s\n")
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% (pl[0].rev(), pl[1].rev()))
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elif remind:
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repo.ui.status(_("(branch merge, don't forget to commit)\n"))
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return stats[3]
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def revert(repo, node, choose):
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"""revert changes to revision in node without updating dirstate"""
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return _merge.update(repo, node, False, True, choose)[3]
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def verify(repo):
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"""verify the consistency of a repository"""
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return _verify.verify(repo)
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