ref: d68f4adeba6ef0db7590cf7c4e1518f4d4bdedff
dir: /sys/lib/python/mercurial/subrepo.py/
# subrepo.py - sub-repository handling for Mercurial
#
# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
import errno, os
from i18n import _
import config, util, node, error
hg = None
nullstate = ('', '')
def state(ctx):
p = config.config()
def read(f, sections=None, remap=None):
if f in ctx:
try:
p.parse(f, ctx[f].data(), sections, remap)
except IOError, err:
if err.errno != errno.ENOENT:
raise
read('.hgsub')
rev = {}
if '.hgsubstate' in ctx:
try:
for l in ctx['.hgsubstate'].data().splitlines():
revision, path = l.split()
rev[path] = revision
except IOError, err:
if err.errno != errno.ENOENT:
raise
state = {}
for path, src in p[''].items():
state[path] = (src, rev.get(path, ''))
return state
def writestate(repo, state):
repo.wwrite('.hgsubstate',
''.join(['%s %s\n' % (state[s][1], s)
for s in sorted(state)]), '')
def submerge(repo, wctx, mctx, actx):
if mctx == actx: # backwards?
actx = wctx.p1()
s1 = wctx.substate
s2 = mctx.substate
sa = actx.substate
sm = {}
for s, l in s1.items():
a = sa.get(s, nullstate)
if s in s2:
r = s2[s]
if l == r or r == a: # no change or local is newer
sm[s] = l
continue
elif l == a: # other side changed
wctx.sub(s).get(r)
sm[s] = r
elif l[0] != r[0]: # sources differ
if repo.ui.promptchoice(
_(' subrepository sources for %s differ\n'
'use (l)ocal source (%s) or (r)emote source (%s)?')
% (s, l[0], r[0]),
(_('&Local'), _('&Remote')), 0):
wctx.sub(s).get(r)
sm[s] = r
elif l[1] == a[1]: # local side is unchanged
wctx.sub(s).get(r)
sm[s] = r
else:
wctx.sub(s).merge(r)
sm[s] = l
elif l == a: # remote removed, local unchanged
wctx.sub(s).remove()
else:
if repo.ui.promptchoice(
_(' local changed subrepository %s which remote removed\n'
'use (c)hanged version or (d)elete?') % s,
(_('&Changed'), _('&Delete')), 0):
wctx.sub(s).remove()
for s, r in s2.items():
if s in s1:
continue
elif s not in sa:
wctx.sub(s).get(r)
sm[s] = r
elif r != sa[s]:
if repo.ui.promptchoice(
_(' remote changed subrepository %s which local removed\n'
'use (c)hanged version or (d)elete?') % s,
(_('&Changed'), _('&Delete')), 0) == 0:
wctx.sub(s).get(r)
sm[s] = r
# record merged .hgsubstate
writestate(repo, sm)
def _abssource(repo, push=False):
if hasattr(repo, '_subparent'):
source = repo._subsource
if source.startswith('/') or '://' in source:
return source
parent = _abssource(repo._subparent)
if '://' in parent:
if parent[-1] == '/':
parent = parent[:-1]
return parent + '/' + source
return os.path.join(parent, repo._subsource)
if push and repo.ui.config('paths', 'default-push'):
return repo.ui.config('paths', 'default-push', repo.root)
return repo.ui.config('paths', 'default', repo.root)
def subrepo(ctx, path):
# subrepo inherently violates our import layering rules
# because it wants to make repo objects from deep inside the stack
# so we manually delay the circular imports to not break
# scripts that don't use our demand-loading
global hg
import hg as h
hg = h
util.path_auditor(ctx._repo.root)(path)
state = ctx.substate.get(path, nullstate)
if state[0].startswith('['): # future expansion
raise error.Abort('unknown subrepo source %s' % state[0])
return hgsubrepo(ctx, path, state)
class hgsubrepo(object):
def __init__(self, ctx, path, state):
self._path = path
self._state = state
r = ctx._repo
root = r.wjoin(path)
if os.path.exists(os.path.join(root, '.hg')):
self._repo = hg.repository(r.ui, root)
else:
util.makedirs(root)
self._repo = hg.repository(r.ui, root, create=True)
self._repo._subparent = r
self._repo._subsource = state[0]
def dirty(self):
r = self._state[1]
if r == '':
return True
w = self._repo[None]
if w.p1() != self._repo[r]: # version checked out changed
return True
return w.dirty() # working directory changed
def commit(self, text, user, date):
n = self._repo.commit(text, user, date)
if not n:
return self._repo['.'].hex() # different version checked out
return node.hex(n)
def remove(self):
# we can't fully delete the repository as it may contain
# local-only history
self._repo.ui.note(_('removing subrepo %s\n') % self._path)
hg.clean(self._repo, node.nullid, False)
def get(self, state):
source, revision = state
try:
self._repo.lookup(revision)
except error.RepoError:
self._repo._subsource = source
self._repo.ui.status(_('pulling subrepo %s\n') % self._path)
srcurl = _abssource(self._repo)
other = hg.repository(self._repo.ui, srcurl)
self._repo.pull(other)
hg.clean(self._repo, revision, False)
def merge(self, state):
hg.merge(self._repo, state[1], remind=False)
def push(self, force):
# push subrepos depth-first for coherent ordering
c = self._repo['']
subs = c.substate # only repos that are committed
for s in sorted(subs):
c.sub(s).push(force)
self._repo.ui.status(_('pushing subrepo %s\n') % self._path)
dsturl = _abssource(self._repo, True)
other = hg.repository(self._repo.ui, dsturl)
self._repo.push(other, force)