merge: rework manifestmerge to use a matcher
This opens the door to working slightly more closely with the manifest
type and letting it optimize out some of the diff comparisons for us,
and also makes life significantly easier for narrowhg.
%include map-cmdline.default
changeset = '{cset}{lbisect}{branches}{bookmarks}{tags}{parents}{user}{ldate}{summary}\n'
changeset_quiet = '{lshortbisect} {rev}:{node|short}\n'
changeset_verbose = '{cset}{lbisect}{branches}{bookmarks}{tags}{parents}{user}{ldate}{lfiles}{lfile_copies_switch}{description}\n'
changeset_debug = '{fullcset}{lbisect}{branches}{bookmarks}{tags}{lphase}{parents}{manifest}{user}{ldate}{lfile_mods}{lfile_adds}{lfile_dels}{lfile_copies_switch}{extras}{description}\n'
# We take the zeroth word in order to omit "(implicit)" in the label
bisectlabel = ' bisect.{word('0', bisect)}'
lbisect ='{label("log.bisect{if(bisect, bisectlabel)}",
"bisect: {bisect}\n")}'
lshortbisect ='{label("log.bisect{if(bisect, bisectlabel)}",
"{bisect|shortbisect}")}'