template: add ifcontains template function
Adds a template function with the signature 'ifcontains(item, set, then[,
else])'. It can be used to do things like '{ifcontains('.hgignore',
file_mods, label(...), ...)}' to color commits that edit the .hgignore file.
A future patch will add the revset() function which will combine with
ifcontains to allow us to color commits if they are in the revset.
--- a/mercurial/templater.py Thu Feb 13 17:34:09 2014 -0800
+++ b/mercurial/templater.py Tue Feb 11 21:10:00 2014 -0800
@@ -301,6 +301,19 @@
elif len(args) == 3:
yield _evalifliteral(args[2], context, mapping)
+def ifcontains(context, mapping, args):
+ if not (3 <= len(args) <= 4):
+ # i18n: "ifcontains" is a keyword
+ raise error.ParseError(_("ifcontains expects three or four arguments"))
+
+ item = stringify(args[0][0](context, mapping, args[0][1]))
+ items = args[1][0](context, mapping, args[1][1])
+
+ if item in items:
+ yield _evalifliteral(args[2], context, mapping)
+ elif len(args) == 4:
+ yield _evalifliteral(args[3], context, mapping)
+
def ifeq(context, mapping, args):
if not (3 <= len(args) <= 4):
# i18n: "ifeq" is a keyword
@@ -436,6 +449,7 @@
"fill": fill,
"get": get,
"if": if_,
+ "ifcontains": ifcontains,
"ifeq": ifeq,
"join": join,
"label": label,
--- a/tests/test-command-template.t Thu Feb 13 17:34:09 2014 -0800
+++ b/tests/test-command-template.t Tue Feb 11 21:10:00 2014 -0800
@@ -1651,3 +1651,9 @@
$ hg log --template '{pad(rev, 20, "-", False)} {author|user}\n'
1------------------- test
0------------------- test
+
+Test ifcontains function
+
+ $ hg log --template '{rev} {ifcontains("a", file_adds, "added a", "did not add a")}\n'
+ 1 did not add a
+ 0 added a