mercurial/subrepo.py
author Martin Geisler <mg@lazybytes.net>
Fri, 01 Jan 2010 18:46:24 +0100
changeset 10183 572dd10fa308
parent 10178 cd477be6f2fc
child 10197 29e3c4a7699b
permissions -rw-r--r--
subrepo: mark string for translation and fix case
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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, re
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from i18n import _
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import config, util, node, error
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hg = None
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nullstate = ('', '', 'empty')
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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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            p.parse(f, ctx[f].data(), sections, remap, read)
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        else:
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            raise util.Abort(_("subrepo spec file %s not found") % f)
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    if '.hgsub' in ctx:
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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(" ", 1)
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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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        kind = 'hg'
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        if src.startswith('['):
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            if ']' not in src:
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                raise util.Abort(_('missing ] in subrepo source'))
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            kind, src = src.split(']', 1)
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            kind = kind[1:]
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        state[path] = (src, rev.get(path, ''), kind)
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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 submerge(repo, wctx, mctx, actx):
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    # working context, merging context, ancestor context
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    if mctx == actx: # backwards?
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        actx = wctx.p1()
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    s1 = wctx.substate
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    s2 = mctx.substate
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    sa = actx.substate
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    sm = {}
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    repo.ui.debug("subrepo merge %s %s %s\n" % (wctx, mctx, actx))
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    def debug(s, msg, r=""):
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        if r:
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            r = "%s:%s:%s" % r
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        repo.ui.debug("  subrepo %s: %s %s\n" % (s, msg, r))
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    for s, l in s1.items():
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        if wctx != actx and wctx.sub(s).dirty():
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            l = (l[0], l[1] + "+")
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        a = sa.get(s, nullstate)
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        if s in s2:
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            r = s2[s]
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            if l == r or r == a: # no change or local is newer
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                sm[s] = l
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                continue
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            elif l == a: # other side changed
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                debug(s, "other changed, get", r)
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                wctx.sub(s).get(r)
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                sm[s] = r
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            elif l[0] != r[0]: # sources differ
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                if repo.ui.promptchoice(
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                    _(' subrepository sources for %s differ\n'
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                      'use (l)ocal source (%s) or (r)emote source (%s)?')
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                      % (s, l[0], r[0]),
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                      (_('&Local'), _('&Remote')), 0):
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                    debug(s, "prompt changed, get", r)
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                    wctx.sub(s).get(r)
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                    sm[s] = r
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            elif l[1] == a[1]: # local side is unchanged
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                debug(s, "other side changed, get", r)
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                wctx.sub(s).get(r)
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                sm[s] = r
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            else:
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                debug(s, "both sides changed, merge with", r)
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                wctx.sub(s).merge(r)
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                sm[s] = l
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        elif l == a: # remote removed, local unchanged
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            debug(s, "remote removed, remove")
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            wctx.sub(s).remove()
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        else:
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            if repo.ui.promptchoice(
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                _(' local changed subrepository %s which remote removed\n'
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                  'use (c)hanged version or (d)elete?') % s,
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                (_('&Changed'), _('&Delete')), 0):
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                debug(s, "prompt remove")
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                wctx.sub(s).remove()
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    for s, r in s2.items():
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        if s in s1:
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            continue
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        elif s not in sa:
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            debug(s, "remote added, get", r)
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            mctx.sub(s).get(r)
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            sm[s] = r
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        elif r != sa[s]:
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            if repo.ui.promptchoice(
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                _(' remote changed subrepository %s which local removed\n'
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                  'use (c)hanged version or (d)elete?') % s,
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                (_('&Changed'), _('&Delete')), 0) == 0:
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                debug(s, "prompt recreate", r)
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                wctx.sub(s).get(r)
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                sm[s] = r
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    # record merged .hgsubstate
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    writestate(repo, sm)
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def _abssource(repo, push=False):
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    if hasattr(repo, '_subparent'):
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        source = repo._subsource
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        if source.startswith('/') or '://' in source:
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            return source
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        parent = _abssource(repo._subparent)
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        if '://' in parent:
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            if parent[-1] == '/':
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                parent = parent[:-1]
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            return parent + '/' + source
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        return os.path.join(parent, repo._subsource)
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    if push and repo.ui.config('paths', 'default-push'):
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        return repo.ui.config('paths', 'default-push', repo.root)
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    return repo.ui.config('paths', 'default', repo.root)
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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 hg
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    import hg as h
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    hg = h
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    util.path_auditor(ctx._repo.root)(path)
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    state = ctx.substate.get(path, nullstate)
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    if state[2] not in types:
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        raise util.Abort(_('unknown subrepo type %s') % t)
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    return types[state[2]](ctx, path, state[:2])
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# subrepo classes need to implement the following methods:
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# __init__(self, ctx, path, state)
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# dirty(self): returns true if the dirstate of the subrepo
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#   does not match current stored state
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# commit(self, text, user, date): commit the current changes
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#   to the subrepo with the given log message. Use given
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#   user and date if possible. Return the new state of the subrepo.
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# remove(self): remove the subrepo (should verify the dirstate
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#   is not dirty first)
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# get(self, state): run whatever commands are needed to put the
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#   subrepo into this state
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# merge(self, state): merge currently-saved state with the new state.
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# push(self, force): perform whatever action is analagous to 'hg push'
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#   This may be a no-op on some systems.
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class hgsubrepo(object):
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    def __init__(self, ctx, path, state):
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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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        if os.path.exists(os.path.join(root, '.hg')):
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            self._repo = hg.repository(r.ui, root)
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        else:
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            util.makedirs(root)
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            self._repo = hg.repository(r.ui, root, create=True)
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            f = file(os.path.join(root, '.hg', 'hgrc'), 'w')
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            f.write('[paths]\ndefault = %s\n' % state[0])
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            f.close()
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        self._repo._subparent = r
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        self._repo._subsource = state[0]
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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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   199
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    def commit(self, text, user, date):
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        self._repo.ui.debug("committing subrepo %s\n" % self._path)
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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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   206
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    def remove(self):
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        # we can't fully delete the repository as it may contain
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        # local-only history
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        self._repo.ui.note(_('removing subrepo %s\n') % self._path)
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        hg.clean(self._repo, node.nullid, False)
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    def _get(self, state):
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        source, revision, kind = state
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        try:
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            self._repo.lookup(revision)
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        except error.RepoError:
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            self._repo._subsource = source
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            self._repo.ui.status(_('pulling subrepo %s\n') % self._path)
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            srcurl = _abssource(self._repo)
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            other = hg.repository(self._repo.ui, srcurl)
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            self._repo.pull(other)
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    def get(self, state):
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        self._get(state)
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        source, revision, kind = state
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        self._repo.ui.debug("getting subrepo %s\n" % self._path)
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        hg.clean(self._repo, revision, False)
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   229
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    def merge(self, state):
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        self._get(state)
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        cur = self._repo['.']
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        dst = self._repo[state[1]]
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        if dst.ancestor(cur) == cur:
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            self._repo.ui.debug("updating subrepo %s\n" % self._path)
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            hg.update(self._repo, state[1])
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        else:
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            self._repo.ui.debug("merging subrepo %s\n" % self._path)
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            hg.merge(self._repo, state[1], remind=False)
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    def push(self, force):
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        # push subrepos depth-first for coherent ordering
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        c = self._repo['']
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        subs = c.substate # only repos that are committed
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        for s in sorted(subs):
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            c.sub(s).push(force)
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        self._repo.ui.status(_('pushing subrepo %s\n') % self._path)
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        dsturl = _abssource(self._repo, True)
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        other = hg.repository(self._repo.ui, dsturl)
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        self._repo.push(other, force)
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class svnsubrepo(object):
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    def __init__(self, ctx, path, state):
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        self._path = path
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        self._state = state
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        self._ctx = ctx
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        self._ui = ctx._repo.ui
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    def _svncommand(self, commands):
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        cmd = ['svn'] + commands + [self._path]
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        cmd = [util.shellquote(arg) for arg in cmd]
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        cmd = util.quotecommand(' '.join(cmd))
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        write, read, err = util.popen3(cmd)
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        retdata = read.read()
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        err = err.read().strip()
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        if err:
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            raise util.Abort(err)
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        return retdata
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    def _wcrev(self):
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        info = self._svncommand(['info'])
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        mat = re.search('Revision: ([\d]+)\n', info)
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        if not mat:
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            return 0
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        return mat.groups()[0]
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    def _url(self):
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        info = self._svncommand(['info'])
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        mat = re.search('URL: ([^\n]+)\n', info)
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        if not mat:
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            return 0
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        return mat.groups()[0]
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    def _wcclean(self):
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        status = self._svncommand(['status'])
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        status = '\n'.join([s for s in status.splitlines() if s[0] != '?'])
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        if status.strip():
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            return False
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        return True
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    def dirty(self):
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        if self._wcrev() == self._state[1] and self._wcclean():
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            return False
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        return True
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    def commit(self, text, user, date):
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        # user and date are out of our hands since svn is centralized
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        if self._wcclean():
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            return self._wcrev()
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        commitinfo = self._svncommand(['commit', '-m', text])
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        self._ui.status(commitinfo)
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        newrev = re.search('Committed revision ([\d]+).', commitinfo)
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        if not newrev:
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            raise util.Abort(commitinfo.splitlines()[-1])
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        newrev = newrev.groups()[0]
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        self._ui.status(self._svncommand(['update', '-r', newrev]))
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        return newrev
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    def remove(self):
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        if self.dirty():
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            self._repo.ui.warn(_('not removing repo %s because'
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                                 'it has changes.\n' % self._path))
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            return
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        self._repo.ui.note('removing subrepo %s\n' % self._path)
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        shutil.rmtree(self._ctx.repo.join(self._path))
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    def get(self, state):
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        status = self._svncommand(['checkout', state[0], '--revision', state[1]])
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        if not re.search('Checked out revision [\d]+.', status):
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            raise util.Abort(status.splitlines()[-1])
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        self._ui.status(status)
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    def merge(self, state):
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        old = int(self._state[1])
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        new = int(state[1])
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        if new > old:
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            self.get(state)
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    def push(self, force):
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        # nothing for svn
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        pass
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types = {
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    'hg': hgsubrepo,
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    'svn': svnsubrepo,
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    }