From patchwork Thu Jan 14 04:05:54 2021
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Subject: D9759: ui: add a "config_default" method
From: phabricator <phabricator@mercurial-scm.org>
X-Patchwork-Id: 48069
Message-Id: <differential-rev-PHID-DREV-56qfu4yvwnp7bwioax7z-req@mercurial-scm.org>
To: Phabricator <phabricator@mercurial-scm.org>
Cc: mercurial-devel@mercurial-scm.org
Date: Thu, 14 Jan 2021 04:05:54 +0000

marmoute created this revision.
Herald added a reviewer: hg-reviewers.
Herald added a subscriber: mercurial-patches.

REVISION SUMMARY
  This allow code to access the expected value for a config. This is useful in the
  context of dynamic default value, and short term it will be useful to write
  dynamically "correct" code.

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D9759

AFFECTED FILES
  mercurial/ui.py

CHANGE DETAILS




To: marmoute, #hg-reviewers
Cc: mercurial-patches, mercurial-devel

diff --git a/mercurial/ui.py b/mercurial/ui.py
--- a/mercurial/ui.py
+++ b/mercurial/ui.py
@@ -673,6 +673,18 @@
                     )
         return value
 
+    def config_default(self, section, name):
+        """return the default value for a config option
+
+        The default is returned "raw", for example if it is a callable, the
+        callable was not called.
+        """
+        item = self._knownconfig.get(section, {}).get(name)
+
+        if item is None:
+            raise KeyError((section, name))
+        return item.default
+
     def configsuboptions(self, section, name, default=_unset, untrusted=False):
         """Get a config option and all sub-options.