# HG changeset patch
# User FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
# Date 2015-02-01 00:36:47
# Node ID 0870bb93573c876ee263161663763393365ea195
# Parent  3449391265796eb2a5aef661d632c0c0b72f111b

templatekw: re-add showtags() to list tags keyword up in online help

Changeset d69a7fc68ad5 removed "showtags()" definition for "tags"
template keyword from "templatekw.py", because "namespaces" puts a
helper function for it into template keyword map automatically. This
works correctly from the point of view of templating functionality.

But on the other hand, it removed "tags" template keyword from "hg
help templates" unexpectedly, because online help text is built before
"namespaces" puts a helper function for "tags" into template keyword
map.

This patch is a kind of backing d69a7fc68ad5 out, but this implements
"showtags()" with newly introduced "shownames()" instead of originally
used "showlist()".

diff --git a/mercurial/templatekw.py b/mercurial/templatekw.py
--- a/mercurial/templatekw.py
+++ b/mercurial/templatekw.py
@@ -382,6 +382,13 @@ def shownames(namespace, **args):
     names = ns.names(repo, ctx.node())
     return showlist(ns.templatename, names, plural=namespace, **args)
 
+# don't remove "showtags" definition, even though namespaces will put
+# a helper function for "tags" keyword into "keywords" map automatically,
+# because online help text is built without namespaces initialization
+def showtags(**args):
+    """:tags: List of strings. Any tags associated with the changeset."""
+    return shownames('tags', **args)
+
 # keywords are callables like:
 # fn(repo, ctx, templ, cache, revcache, **args)
 # with:
@@ -420,6 +427,7 @@ keywords = {
     'phaseidx': showphaseidx,
     'rev': showrev,
     'subrepos': showsubrepos,
+    'tags': showtags,
 }
 
 def _showparents(**args):