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# narrowdirstate.py - extensions to mercurial dirstate to support narrow clones
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#
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# Copyright 2017 Google, Inc.
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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 or any later version.
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from __future__ import absolute_import
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from mercurial.i18n import _
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from mercurial import (
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error,
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)
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def wrapdirstate(repo, dirstate):
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"""Add narrow spec dirstate ignore, block changes outside narrow spec."""
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def _editfunc(fn):
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def _wrapper(self, *args):
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narrowmatch = repo.narrowmatch()
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for f in args:
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if f is not None and not narrowmatch(f) and f not in self:
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raise error.Abort(_("cannot track '%s' - it is outside " +
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"the narrow clone") % f)
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return fn(self, *args)
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return _wrapper
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class narrowdirstate(dirstate.__class__):
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# Prevent adding/editing/copying/deleting files that are outside the
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# sparse checkout
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@_editfunc
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def normal(self, *args):
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return super(narrowdirstate, self).normal(*args)
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@_editfunc
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def add(self, *args):
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return super(narrowdirstate, self).add(*args)
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@_editfunc
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def normallookup(self, *args):
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return super(narrowdirstate, self).normallookup(*args)
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@_editfunc
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def copy(self, *args):
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return super(narrowdirstate, self).copy(*args)
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@_editfunc
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def remove(self, *args):
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return super(narrowdirstate, self).remove(*args)
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@_editfunc
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def merge(self, *args):
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return super(narrowdirstate, self).merge(*args)
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def rebuild(self, parent, allfiles, changedfiles=None):
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if changedfiles is None:
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# Rebuilding entire dirstate, let's filter allfiles to match the
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# narrowspec.
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allfiles = [f for f in allfiles if repo.narrowmatch()(f)]
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super(narrowdirstate, self).rebuild(parent, allfiles, changedfiles)
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dirstate.__class__ = narrowdirstate
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return dirstate
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