graphlog: apply file filters --patch/--stat output When passing --patch/--stat, file filters have to be applied to generate the correct diff or stat output: - Without --follow, the static match object can be reused - With --follow, the files displayed at revision X are the ancestors of selected files at parent revision. To do this, we reproduce the ancestry calculations done by --follow, lazily. test-glog.t changes show that --patch output is not satisfying because renames are reported as copies. This can probably be fixed by: - Without --follow: compute files to display, look for renames sources and extend the matcher to include them. - With --follow: detect .path() transitions between parent/child filectx, filter them using the linked changectx .removed() field and extend fcache with them.

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  $ "$TESTDIR/hghave" pyflakes || exit 80

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  $ cd `dirname $TESTDIR`

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  $ pyflakes mercurial hgext 2>&1 | $TESTDIR/filterpyflakes.py

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  hgext/inotify/linux/__init__.py:*: 'from _inotify import *' used; unable to detect undefined names (glob)

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