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# dirstatenonnormalcheck.py - extension to check the consistency of the
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# dirstate's non-normal map
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#
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# For most operations on dirstate, this extensions checks that the nonnormalset
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# contains the right entries.
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# It compares the nonnormal file to a nonnormalset built from the map of all
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# the files in the dirstate to check that they contain the same files.
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from __future__ import absolute_import
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from mercurial import (
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dirstate,
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extensions,
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pycompat,
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)
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def nonnormalentries(dmap):
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"""Compute nonnormal entries from dirstate's dmap"""
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res = set()
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for f, e in dmap.iteritems():
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if e.state != b'n' or e.mtime == -1:
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res.add(f)
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return res
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def checkconsistency(ui, orig, dmap, _nonnormalset, label):
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"""Compute nonnormalset from dmap, check that it matches _nonnormalset"""
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nonnormalcomputedmap = nonnormalentries(dmap)
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if _nonnormalset != nonnormalcomputedmap:
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b_orig = pycompat.sysbytes(repr(orig))
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ui.develwarn(b"%s call to %s\n" % (label, b_orig), config=b'dirstate')
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ui.develwarn(b"inconsistency in nonnormalset\n", config=b'dirstate')
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b_nonnormal = pycompat.sysbytes(repr(_nonnormalset))
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ui.develwarn(b"[nonnormalset] %s\n" % b_nonnormal, config=b'dirstate')
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b_nonnormalcomputed = pycompat.sysbytes(repr(nonnormalcomputedmap))
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ui.develwarn(b"[map] %s\n" % b_nonnormalcomputed, config=b'dirstate')
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def _checkdirstate(orig, self, *args, **kwargs):
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"""Check nonnormal set consistency before and after the call to orig"""
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checkconsistency(
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self._ui, orig, self._map, self._map.nonnormalset, b"before"
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)
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r = orig(self, *args, **kwargs)
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checkconsistency(
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self._ui, orig, self._map, self._map.nonnormalset, b"after"
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)
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return r
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def extsetup(ui):
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"""Wrap functions modifying dirstate to check nonnormalset consistency"""
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dirstatecl = dirstate.dirstate
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devel = ui.configbool(b'devel', b'all-warnings')
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paranoid = ui.configbool(b'experimental', b'nonnormalparanoidcheck')
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if devel:
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extensions.wrapfunction(dirstatecl, '_writedirstate', _checkdirstate)
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if paranoid:
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# We don't do all these checks when paranoid is disable as it would
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# make the extension run very slowly on large repos
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extensions.wrapfunction(dirstatecl, 'normallookup', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'otherparent', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'normal', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'write', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'add', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'remove', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'merge', _checkdirstate)
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extensions.wrapfunction(dirstatecl, 'drop', _checkdirstate)
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