# hg.py - repository classes for mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from i18n import _
from lock import release
from node import hex, nullid, nullrev, short
import localrepo, bundlerepo, httprepo, sshrepo, statichttprepo
import lock, util, extensions, error, encoding, node
import cmdutil, discovery, url
import merge as mergemod
import verify as verifymod
import errno, os, shutil
def _local(path):
path = util.expandpath(util.drop_scheme('file', path))
return (os.path.isfile(path) and bundlerepo or localrepo)
def addbranchrevs(lrepo, repo, branches, revs):
hashbranch, branches = branches
if not hashbranch and not branches:
return revs or None, revs and revs[0] or None
revs = revs and list(revs) or []
if not repo.capable('branchmap'):
if branches:
raise util.Abort(_("remote branch lookup not supported"))
revs.append(hashbranch)
return revs, revs[0]
branchmap = repo.branchmap()
def primary(branch):
if branch == '.':
if not lrepo or not lrepo.local():
raise util.Abort(_("dirstate branch not accessible"))
branch = lrepo.dirstate.branch()
if branch in branchmap:
revs.extend(node.hex(r) for r in reversed(branchmap[branch]))
return True
else:
return False
for branch in branches:
if not primary(branch):
raise error.RepoLookupError(_("unknown branch '%s'") % branch)
if hashbranch:
if not primary(hashbranch):
revs.append(hashbranch)
return revs, revs[0]
def parseurl(url, branches=None):
'''parse url#branch, returning (url, (branch, branches))'''
if '#' not in url:
return url, (None, branches or [])
url, branch = url.split('#', 1)
return url, (branch, branches or [])
schemes = {
'bundle': bundlerepo,
'file': _local,
'http': httprepo,
'https': httprepo,
'ssh': sshrepo,
'static-http': statichttprepo,
}
def _lookup(path):
scheme = 'file'
if path:
c = path.find(':')
if c > 0:
scheme = path[:c]
thing = schemes.get(scheme) or schemes['file']
try:
return thing(path)
except TypeError:
return thing
def islocal(repo):
'''return true if repo or path is local'''
if isinstance(repo, str):
try:
return _lookup(repo).islocal(repo)
except AttributeError:
return False
return repo.local()
def repository(ui, path='', create=False):
"""return a repository object for the specified path"""
repo = _lookup(path).instance(ui, path, create)
ui = getattr(repo, "ui", ui)
for name, module in extensions.extensions():
hook = getattr(module, 'reposetup', None)
if hook:
hook(ui, repo)
return repo
def defaultdest(source):
'''return default destination of clone if none is given'''
return os.path.basename(os.path.normpath(source))
def localpath(path):
if path.startswith('file://localhost/'):
return path[16:]
if path.startswith('file://'):
return path[7:]
if path.startswith('file:'):
return path[5:]
return path
def share(ui, source, dest=None, update=True):
'''create a shared repository'''
if not islocal(source):
raise util.Abort(_('can only share local repositories'))
if not dest:
dest = defaultdest(source)
else:
dest = ui.expandpath(dest)
if isinstance(source, str):
origsource = ui.expandpath(source)
source, branches = parseurl(origsource)
srcrepo = repository(ui, source)
rev, checkout = addbranchrevs(srcrepo, srcrepo, branches, None)
else:
srcrepo = source
origsource = source = srcrepo.url()
checkout = None
sharedpath = srcrepo.sharedpath # if our source is already sharing
root = os.path.realpath(dest)
roothg = os.path.join(root, '.hg')
if os.path.exists(roothg):
raise util.Abort(_('destination already exists'))
if not os.path.isdir(root):
os.mkdir(root)
os.mkdir(roothg)
requirements = ''
try:
requirements = srcrepo.opener('requires').read()
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
requirements += 'shared\n'
file(os.path.join(roothg, 'requires'), 'w').write(requirements)
file(os.path.join(roothg, 'sharedpath'), 'w').write(sharedpath)
default = srcrepo.ui.config('paths', 'default')
if default:
f = file(os.path.join(roothg, 'hgrc'), 'w')
f.write('[paths]\ndefault = %s\n' % default)
f.close()
r = repository(ui, root)
if update:
r.ui.status(_("updating working directory\n"))
if update is not True:
checkout = update
for test in (checkout, 'default', 'tip'):
if test is None:
continue
try:
uprev = r.lookup(test)
break
except error.RepoLookupError:
continue
_update(r, uprev)
def clone(ui, source, dest=None, pull=False, rev=None, update=True,
stream=False, branch=None):
"""Make a copy of an existing repository.
Create a copy of an existing repository in a new directory. The
source and destination are URLs, as passed to the repository
function. Returns a pair of repository objects, the source and
newly created destination.
The location of the source is added to the new repository's
.hg/hgrc file, as the default to be used for future pulls and
pushes.
If an exception is raised, the partly cloned/updated destination
repository will be deleted.
Arguments:
source: repository object or URL
dest: URL of destination repository to create (defaults to base
name of source repository)
pull: always pull from source repository, even in local case
stream: stream raw data uncompressed from repository (fast over
LAN, slow over WAN)
rev: revision to clone up to (implies pull=True)
update: update working directory after clone completes, if
destination is local repository (True means update to default rev,
anything else is treated as a revision)
branch: branches to clone
"""
if isinstance(source, str):
origsource = ui.expandpath(source)
source, branch = parseurl(origsource, branch)
src_repo = repository(ui, source)
else:
src_repo = source
branch = (None, branch or [])
origsource = source = src_repo.url()
rev, checkout = addbranchrevs(src_repo, src_repo, branch, rev)
if dest is None:
dest = defaultdest(source)
ui.status(_("destination directory: %s\n") % dest)
else:
dest = ui.expandpath(dest)
dest = localpath(dest)
source = localpath(source)
if os.path.exists(dest):
if not os.path.isdir(dest):
raise util.Abort(_("destination '%s' already exists") % dest)
elif os.listdir(dest):
raise util.Abort(_("destination '%s' is not empty") % dest)
class DirCleanup(object):
def __init__(self, dir_):
self.rmtree = shutil.rmtree
self.dir_ = dir_
def close(self):
self.dir_ = None
def cleanup(self):
if self.dir_:
self.rmtree(self.dir_, True)
src_lock = dest_lock = dir_cleanup = None
try:
if islocal(dest):
dir_cleanup = DirCleanup(dest)
abspath = origsource
copy = False
if src_repo.cancopy() and islocal(dest):
abspath = os.path.abspath(util.drop_scheme('file', origsource))
copy = not pull and not rev
if copy:
try:
# we use a lock here because if we race with commit, we
# can end up with extra data in the cloned revlogs that's
# not pointed to by changesets, thus causing verify to
# fail
src_lock = src_repo.lock(wait=False)
except error.LockError:
copy = False
if copy:
src_repo.hook('preoutgoing', throw=True, source='clone')
hgdir = os.path.realpath(os.path.join(dest, ".hg"))
if not os.path.exists(dest):
os.mkdir(dest)
else:
# only clean up directories we create ourselves
dir_cleanup.dir_ = hgdir
try:
dest_path = hgdir
os.mkdir(dest_path)
except OSError, inst:
if inst.errno == errno.EEXIST:
dir_cleanup.close()
raise util.Abort(_("destination '%s' already exists")
% dest)
raise
hardlink = None
num = 0
for f in src_repo.store.copylist():
src = os.path.join(src_repo.sharedpath, f)
dst = os.path.join(dest_path, f)
dstbase = os.path.dirname(dst)
if dstbase and not os.path.exists(dstbase):
os.mkdir(dstbase)
if os.path.exists(src):
if dst.endswith('data'):
# lock to avoid premature writing to the target
dest_lock = lock.lock(os.path.join(dstbase, "lock"))
hardlink, n = util.copyfiles(src, dst, hardlink)
num += n
if hardlink:
ui.debug("linked %d files\n" % num)
else:
ui.debug("copied %d files\n" % num)
# we need to re-init the repo after manually copying the data
# into it
dest_repo = repository(ui, dest)
src_repo.hook('outgoing', source='clone',
node=node.hex(node.nullid))
else:
try:
dest_repo = repository(ui, dest, create=True)
except OSError, inst:
if inst.errno == errno.EEXIST:
dir_cleanup.close()
raise util.Abort(_("destination '%s' already exists")
% dest)
raise
revs = None
if rev:
if 'lookup' not in src_repo.capabilities:
raise util.Abort(_("src repository does not support "
"revision lookup and so doesn't "
"support clone by revision"))
revs = [src_repo.lookup(r) for r in rev]
checkout = revs[0]
if dest_repo.local():
dest_repo.clone(src_repo, heads=revs, stream=stream)
elif src_repo.local():
src_repo.push(dest_repo, revs=revs)
else:
raise util.Abort(_("clone from remote to remote not supported"))
if dir_cleanup:
dir_cleanup.close()
if dest_repo.local():
fp = dest_repo.opener("hgrc", "w", text=True)
fp.write("[paths]\n")
fp.write("default = %s\n" % abspath)
fp.close()
dest_repo.ui.setconfig('paths', 'default', abspath)
if update:
if update is not True:
checkout = update
if src_repo.local():
checkout = src_repo.lookup(update)
for test in (checkout, 'default', 'tip'):
if test is None:
continue
try:
uprev = dest_repo.lookup(test)
break
except error.RepoLookupError:
continue
bn = dest_repo[uprev].branch()
dest_repo.ui.status(_("updating to branch %s\n") % bn)
_update(dest_repo, uprev)
return src_repo, dest_repo
finally:
release(src_lock, dest_lock)
if dir_cleanup is not None:
dir_cleanup.cleanup()
def _showstats(repo, stats):
repo.ui.status(_("%d files updated, %d files merged, "
"%d files removed, %d files unresolved\n") % stats)
def update(repo, node):
"""update the working directory to node, merging linear changes"""
stats = mergemod.update(repo, node, False, False, None)
_showstats(repo, stats)
if stats[3]:
repo.ui.status(_("use 'hg resolve' to retry unresolved file merges\n"))
return stats[3] > 0
# naming conflict in clone()
_update = update
def clean(repo, node, show_stats=True):
"""forcibly switch the working directory to node, clobbering changes"""
stats = mergemod.update(repo, node, False, True, None)
if show_stats:
_showstats(repo, stats)
return stats[3] > 0
def merge(repo, node, force=None, remind=True):
"""Branch merge with node, resolving changes. Return true if any
unresolved conflicts."""
stats = mergemod.update(repo, node, True, force, False)
_showstats(repo, stats)
if stats[3]:
repo.ui.status(_("use 'hg resolve' to retry unresolved file merges "
"or 'hg update -C .' to abandon\n"))
elif remind:
repo.ui.status(_("(branch merge, don't forget to commit)\n"))
return stats[3] > 0
def _incoming(displaychlist, subreporecurse, ui, repo, source,
opts, buffered=False):
"""
Helper for incoming / gincoming.
displaychlist gets called with
(remoterepo, incomingchangesetlist, displayer) parameters,
and is supposed to contain only code that can't be unified.
"""
source, branches = parseurl(ui.expandpath(source), opts.get('branch'))
other = repository(remoteui(repo, opts), source)
ui.status(_('comparing with %s\n') % url.hidepassword(source))
revs, checkout = addbranchrevs(repo, other, branches, opts.get('rev'))
if revs:
revs = [other.lookup(rev) for rev in revs]
other, incoming, bundle = bundlerepo.getremotechanges(ui, repo, other, revs,
opts["bundle"], opts["force"])
if incoming is None:
ui.status(_("no changes found\n"))
return subreporecurse()
try:
chlist = other.changelog.nodesbetween(incoming, revs)[0]
displayer = cmdutil.show_changeset(ui, other, opts, buffered)
# XXX once graphlog extension makes it into core,
# should be replaced by a if graph/else
displaychlist(other, chlist, displayer)
displayer.close()
finally:
if hasattr(other, 'close'):
other.close()
if bundle:
os.unlink(bundle)
subreporecurse()
return 0 # exit code is zero since we found incoming changes
def incoming(ui, repo, source, opts):
def subreporecurse():
ret = 1
if opts.get('subrepos'):
ctx = repo[None]
for subpath in sorted(ctx.substate):
sub = ctx.sub(subpath)
ret = min(ret, sub.incoming(ui, source, opts))
return ret
def display(other, chlist, displayer):
limit = cmdutil.loglimit(opts)
if opts.get('newest_first'):
chlist.reverse()
count = 0
for n in chlist:
if limit is not None and count >= limit:
break
parents = [p for p in other.changelog.parents(n) if p != nullid]
if opts.get('no_merges') and len(parents) == 2:
continue
count += 1
displayer.show(other[n])
return _incoming(display, subreporecurse, ui, repo, source, opts)
def _outgoing(ui, repo, dest, opts):
dest = ui.expandpath(dest or 'default-push', dest or 'default')
dest, branches = parseurl(dest, opts.get('branch'))
revs, checkout = addbranchrevs(repo, repo, branches, opts.get('rev'))
if revs:
revs = [repo.lookup(rev) for rev in revs]
other = repository(remoteui(repo, opts), dest)
ui.status(_('comparing with %s\n') % url.hidepassword(dest))
o = discovery.findoutgoing(repo, other, force=opts.get('force'))
if not o:
ui.status(_("no changes found\n"))
return None
return repo.changelog.nodesbetween(o, revs)[0]
def outgoing(ui, repo, dest, opts):
def recurse():
ret = 1
if opts.get('subrepos'):
ctx = repo[None]
for subpath in sorted(ctx.substate):
sub = ctx.sub(subpath)
ret = min(ret, sub.outgoing(ui, dest, opts))
return ret
limit = cmdutil.loglimit(opts)
o = _outgoing(ui, repo, dest, opts)
if o is None:
return recurse()
if opts.get('newest_first'):
o.reverse()
displayer = cmdutil.show_changeset(ui, repo, opts)
count = 0
for n in o:
if limit is not None and count >= limit:
break
parents = [p for p in repo.changelog.parents(n) if p != nullid]
if opts.get('no_merges') and len(parents) == 2:
continue
count += 1
displayer.show(repo[n])
displayer.close()
recurse()
return 0 # exit code is zero since we found outgoing changes
def revert(repo, node, choose):
"""revert changes to revision in node without updating dirstate"""
return mergemod.update(repo, node, False, True, choose)[3] > 0
def verify(repo):
"""verify the consistency of a repository"""
return verifymod.verify(repo)
def remoteui(src, opts):
'build a remote ui from ui or repo and opts'
if hasattr(src, 'baseui'): # looks like a repository
dst = src.baseui.copy() # drop repo-specific config
src = src.ui # copy target options from repo
else: # assume it's a global ui object
dst = src.copy() # keep all global options
# copy ssh-specific options
for o in 'ssh', 'remotecmd':
v = opts.get(o) or src.config('ui', o)
if v:
dst.setconfig("ui", o, v)
# copy bundle-specific options
r = src.config('bundle', 'mainreporoot')
if r:
dst.setconfig('bundle', 'mainreporoot', r)
# copy selected local settings to the remote ui
for sect in ('auth', 'http_proxy'):
for key, val in src.configitems(sect):
dst.setconfig(sect, key, val)
v = src.config('web', 'cacerts')
if v:
dst.setconfig('web', 'cacerts', util.expandpath(v))
return dst