Mercurial > hg
comparison mercurial/ui.py @ 15919:69e792cf7851
config: have a way to backup and restore value in config
This is introduce to allow temporary overwriting of a config value while being
able to reinstall the old value once done. The main advantage over using
``config`` and ``setconfig`` is that backup and restore will properly restore
the lack of any config. Restoring the fact that there was no value is important
to allow config user to keep using meaniful default value.
A more naive approach will result in the following scenario::
Before:
config(section, item, my_default) --> my_default
temporal overwrite
old = config(section, item)
…
setconfig(section, item, old)
After
config(section, item, my_default) --> None
The first user of this feature should be mq to overwriting minimal phase of
future commit.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Wed, 18 Jan 2012 16:52:26 +0100 |
parents | ee112eb69d2a |
children | ae5f92e154d3 c14898df3b92 |
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15918:4f9853e7f690 | 15919:69e792cf7851 |
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139 | 139 |
140 if section in (None, 'trusted'): | 140 if section in (None, 'trusted'): |
141 # update trust information | 141 # update trust information |
142 self._trustusers.update(self.configlist('trusted', 'users')) | 142 self._trustusers.update(self.configlist('trusted', 'users')) |
143 self._trustgroups.update(self.configlist('trusted', 'groups')) | 143 self._trustgroups.update(self.configlist('trusted', 'groups')) |
144 | |
145 def backupconfig(self, section, item): | |
146 return (self._ocfg.backup(section, item), | |
147 self._tcfg.backup(section, item), | |
148 self._ucfg.backup(section, item),) | |
149 def restoreconfig(self, data): | |
150 self._ocfg.restore(data[0]) | |
151 self._tcfg.restore(data[1]) | |
152 self._ucfg.restore(data[2]) | |
144 | 153 |
145 def setconfig(self, section, name, value, overlay=True): | 154 def setconfig(self, section, name, value, overlay=True): |
146 if overlay: | 155 if overlay: |
147 self._ocfg.set(section, name, value) | 156 self._ocfg.set(section, name, value) |
148 self._tcfg.set(section, name, value) | 157 self._tcfg.set(section, name, value) |