context: implement mergestate() method
This will let us have the mergestate storage be controlled by the context. In
particular, for working contexts we should use the existing mergestate, but
for overlay contexts it's inappropriate to drop files in .hg/merge.
Differential Revision: https://phab.mercurial-scm.org/D8551
%include map-cmdline.default
[templates]
# Override base templates
changeset = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{summary}{lfiles}\n'
changeset_verbose = '{cset}{branches}{bookmarks}{tags}{parents}{luser}{ldate}{description}{lfiles}\n'
changeset_debug = '{fullcset}{branches}{bookmarks}{tags}{lphase}{parents}{manifest}{luser}{ldate}{extras}{description}{lfiles}\n'
# Override the file templates
lfiles = '{if(files,
label('ui.note log.files',
'files:\n'))}{lfile_mods}{lfile_adds}{lfile_dels}'
lfile_adds = '{file_adds % "{lfile_add}{lfile_src}"}'
lfile_mods = '{file_mods % "{lfile_mod}{lfile_src}"}'
lfile_add = '{label("status.added", "A {file}\n")}'
lfile_mod = '{label("status.modified", "M {file}\n")}'
lfile_src = '{ifcontains(file, file_copies_switch,
label("status.copied", " {get(file_copies_switch, file)}\n"))}'
lfile_dels = '{file_dels % "{label('status.removed', 'R {file}\n')}"}'