[PATCH 1 of 4] templatefuncs: minimize resource requirements

[Yuya Nishihara]

# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1528978676 -32400
#      Thu Jun 14 21:17:56 2018 +0900
# Node ID 6d021282f5c6b39c4f3af64e3ed0a658253974d3
# Parent  ed4f41dd0fdb2e5396830084805223ca334bee3b
templatefuncs: minimize resource requirements

diff --git a/mercurial/templatefuncs.py b/mercurial/templatefuncs.py
--- a/mercurial/templatefuncs.py
+++ b/mercurial/templatefuncs.py
@@ -512,7 +512,7 @@ def relpath(context, mapping, args):
         # i18n: "relpath" is a keyword
         raise error.ParseError(_("relpath expects one argument"))
 
-    repo = context.resource(mapping, 'ctx').repo()
+    repo = context.resource(mapping, 'repo')
     path = evalstring(context, mapping, args[0])
     return repo.pathto(path)
 
@@ -525,8 +525,7 @@ def revset(context, mapping, args):
         raise error.ParseError(_("revset expects one or more arguments"))
 
     raw = evalstring(context, mapping, args[0])
-    ctx = context.resource(mapping, 'ctx')
-    repo = ctx.repo()
+    repo = context.resource(mapping, 'repo')
 
     def query(expr):
         m = revsetmod.match(repo.ui, expr, lookup=revsetmod.lookupfn(repo))
@@ -594,7 +593,7 @@ def shortest(context, mapping, args):
                                 # i18n: "shortest" is a keyword
                                 _("shortest() expects an integer minlength"))
 
-    repo = context.resource(mapping, 'ctx')._repo
+    repo = context.resource(mapping, 'repo')
     if len(hexnode) > 40:
         return hexnode
     elif len(hexnode) == 40:
diff --git a/tests/test-command-template.t b/tests/test-command-template.t
--- a/tests/test-command-template.t
+++ b/tests/test-command-template.t
@@ -229,7 +229,7 @@ Internal resources shouldn't be exposed 
 Never crash on internal resource not available:
 
   $ hg --cwd .. debugtemplate '{"c0bebeef"|shortest}\n'
-  abort: template resource not available: ctx
+  abort: template resource not available: repo
   [255]
 
   $ hg config -T '{author}'