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# subrepo.py - sub-repository handling for Mercurial
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#
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# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2, incorporated herein by reference.
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import errno, os
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import config, util, node, error
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localrepo = None
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nullstate = ('', '')
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def state(ctx):
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p = config.config()
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def read(f, sections=None, remap=None):
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if f in ctx:
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try:
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p.parse(f, ctx[f].data(), sections, remap)
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except IOError, err:
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if err.errno != errno.ENOENT:
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raise
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read('.hgsub')
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rev = {}
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if '.hgsubstate' in ctx:
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try:
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for l in ctx['.hgsubstate'].data().splitlines():
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revision, path = l.split()
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rev[path] = revision
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except IOError, err:
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if err.errno != errno.ENOENT:
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raise
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state = {}
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for path, src in p[''].items():
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state[path] = (src, rev.get(path, ''))
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return state
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def writestate(repo, state):
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repo.wwrite('.hgsubstate',
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''.join(['%s %s\n' % (state[s][1], s)
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for s in sorted(state)]), '')
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def subrepo(ctx, path):
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# subrepo inherently violates our import layering rules
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# because it wants to make repo objects from deep inside the stack
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# so we manually delay the circular imports to not break
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# scripts that don't use our demand-loading
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global localrepo
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import localrepo as l
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localrepo = l
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state = ctx.substate.get(path, nullstate)
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if state[0].startswith('['): # future expansion
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raise error.Abort('unknown subrepo source %s' % state[0])
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return hgsubrepo(ctx, path, state)
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class hgsubrepo(object):
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def __init__(self, ctx, path, state):
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self._parent = ctx
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self._path = path
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self._state = state
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r = ctx._repo
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root = r.wjoin(path)
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self._repo = localrepo.localrepository(r.ui, root)
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def dirty(self):
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r = self._state[1]
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if r == '':
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return True
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w = self._repo[None]
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if w.p1() != self._repo[r]: # version checked out changed
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return True
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return w.dirty() # working directory changed
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def commit(self, text, user, date):
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n = self._repo.commit(text, user, date)
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if not n:
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return self._repo['.'].hex() # different version checked out
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return node.hex(n)
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