changeset 44126:e2278581b1c6

config: add a function to insert non-file based, but overridable settings This will be used in the next patch. Until relatively recently (473510bf0575), there was no official way for extensions to inject per-repo config data, so it probably makes sense that `ui.setconfig()` items are sticky, and not affected by loading more config files. But that makes it cumbersome if the extension wants to allow the data it might add to be overridden by any data in the local hgrc file. The only thing I could get to work was to load the local hgrc first, and then check if the source for the config item that should be overridden was *not* the local hgrc file name. But that's brittle because in addition to the file name, the source contains the line number, there are the usual '\' vs '/' platform differences, etc. Differential Revision: https://phab.mercurial-scm.org/D7933
author Matt Harbison <matt_harbison@yahoo.com>
date Fri, 17 Jan 2020 13:29:47 -0500
parents a5e3f38407cb
children 59b3fe1e2021
files mercurial/ui.py
diffstat 1 files changed, 19 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/ui.py	Thu Jan 16 19:48:01 2020 -0500
+++ b/mercurial/ui.py	Fri Jan 17 13:29:47 2020 -0500
@@ -467,6 +467,25 @@
                     raise
                 self.warn(_(b'ignored: %s\n') % stringutil.forcebytestr(inst))
 
+        self._applyconfig(cfg, trusted, root)
+
+    def applyconfig(self, configitems, source=b"", root=None):
+        """Add configitems from a non-file source.  Unlike with ``setconfig()``,
+        they can be overridden by subsequent config file reads.  The items are
+        in the same format as ``configoverride()``, namely a dict of the
+        following structures: {(section, name) : value}
+
+        Typically this is used by extensions that inject themselves into the
+        config file load procedure by monkeypatching ``localrepo.loadhgrc()``.
+        """
+        cfg = config.config()
+
+        for (section, name), value in configitems.items():
+            cfg.set(section, name, value, source)
+
+        self._applyconfig(cfg, True, root)
+
+    def _applyconfig(self, cfg, trusted, root):
         if self.plain():
             for k in (
                 b'debug',