From patchwork Sat Apr 15 09:41:51 2017
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Subject: [1,of,2,V2] revsetlang: add a getboolean helper function
From: Denis Laxalde <denis@laxalde.org>
X-Patchwork-Id: 20210
Message-Id: <b7086dbbff268161576b.1492249311@marimba>
To: mercurial-devel@mercurial-scm.org
Date: Sat, 15 Apr 2017 11:41:51 +0200

# HG changeset patch
# User Denis Laxalde <denis@laxalde.org>
# Date 1492248369 -7200
#      Sat Apr 15 11:26:09 2017 +0200
# Node ID b7086dbbff268161576bd62a374eec531bdabd7d
# Parent  4c2c30bc38b4f84ce8f215146bbf158e299065b3
revsetlang: add a getboolean helper function

This will be used to parse followlines's "descend" argument.

diff --git a/mercurial/revsetlang.py b/mercurial/revsetlang.py
--- a/mercurial/revsetlang.py
+++ b/mercurial/revsetlang.py
@@ -199,6 +199,12 @@ def getinteger(x, err, default=_notset):
     except ValueError:
         raise error.ParseError(err)
 
+def getboolean(x, err):
+    value = util.parsebool(getsymbol(x))
+    if value is not None:
+        return value
+    raise error.ParseError(err)
+
 def getlist(x):
     if not x:
         return []