cmdutil: changeset_printer: use methods of filectx/changectx.
This allows extensions that modify changeset metadata (e.g.
description) by overriding methods of changectx to get consistent
behavior from all log-like commands, regardless of whether templates
or styles are used. Without this, overriding changectx methods works
if you use styles or templates, but not with default log format.
This meant adding filectx.extra() for consistency with changectx.
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
hg init a
cd a
echo 'base' > base
hg ci -Ambase -d '1 0'
hg qnew -d '1 0' a
hg qnew -d '1 0' b
hg qnew -d '1 0' c
hg qdel
hg qdel c
hg qpop
hg qdel c
hg qseries
ls .hg/patches
hg qpop
hg qdel -k b
ls .hg/patches
hg qdel -r a
hg qapplied
hg log --template '{rev} {desc}\n'
hg qnew d
hg qnew e
hg qnew f
hg qdel -r e
hg qdel -r qbase:e
hg qapplied
hg log --template '{rev} {desc}\n'
cd ..
hg init b
cd b
echo 'base' > base
hg ci -Ambase -d '1 0'
hg qfinish
hg qfinish -a
hg qnew -d '1 0' a
hg qnew -d '1 0' b
hg qnew c # XXX fails to apply by /usr/bin/patch if we put a date
hg qfinish 0
hg qfinish b
hg qpop
hg qfinish -a c
hg qpush
hg qfinish qbase:b
hg qapplied
hg log --template '{rev} {desc}\n'
hg qfinish -a c
hg qapplied
hg log --template '{rev} {desc}\n'
ls .hg/patches