templatekw: apply manifest template only if ctx.manifestnode() exists
This will prevent crash by "hg log -r 'wdir()' -Tdefault". We could use the
pseudo ff... hash introduced by 183965a00c76, but it isn't proven idea yet.
For now, I want to make "hg log" just works in order to test 'wdir()' revset.
Note that unlike its name, "{manifest}" is not a list of files in that
revision, but a pair of (manifestrev, manifestnode).
--- a/mercurial/templatekw.py Tue Jul 07 19:07:04 2015 -0500
+++ b/mercurial/templatekw.py Sat Mar 14 17:58:18 2015 +0900
@@ -355,6 +355,9 @@
def showmanifest(**args):
repo, ctx, templ = args['repo'], args['ctx'], args['templ']
mnode = ctx.manifestnode()
+ if mnode is None:
+ # just avoid crash, we might want to use the 'ff...' hash in future
+ return
args = args.copy()
args.update({'rev': repo.manifest.rev(mnode), 'node': hex(mnode)})
return templ('manifest', **args)
--- a/tests/test-command-template.t Tue Jul 07 19:07:04 2015 -0500
+++ b/tests/test-command-template.t Sat Mar 14 17:58:18 2015 +0900
@@ -51,6 +51,12 @@
8 t
7 f
+Some keywords are invalid for working-directory revision, but they should
+never cause crash:
+
+ $ hg log -r 'wdir()' -T '{manifest}\n'
+
+
Quoting for ui.logtemplate
$ hg tip --config "ui.logtemplate={rev}\n"