This is needed to make Mercurial read the HGEXTENSIONPATH to detect
third-party extensions.  It is called HGEXTENSIONPATH and not
HG_EXTENSION_PATH to keep it consistent with other environment variables for
Mercurial, e.g. HGENCODINGAMBIGUOUS, HGEDITOR ...  Hopefully I or someone else
will get this into Mercurial proper.

diff --git a/mercurial/extensions.py b/mercurial/extensions.py
--- a/mercurial/extensions.py
+++ b/mercurial/extensions.py
@@ -13,6 +13,7 @@
 import imp
 import inspect
 import os
+import sys
 
 from .i18n import (
     _,
@@ -108,6 +109,11 @@
 
 def _importh(name):
     """import and return the <name> module"""
+    # Read HGEXTENSIONSPATH environment variable when import extensions.
+    extension_path = os.getenv("HGEXTENSIONSPATH")
+    if extension_path is not None:
+        for path in extension_path:
+            sys.path.append(path)
     mod = __import__(pycompat.sysstr(name))
     components = name.split(b'.')
     for comp in components[1:]:
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<tr><td><span title='2022-06-24 10:24:54 +0200'>2022-06-24</span></td><td><a href='/guix/commit/gnu/tests/ldap.scm?id=ed2d2a2d579456c356288232128bf32322c5edfa'>tests: ldap: Increase VM memory size.</a><span class='msg-avail'>...<span class='msg-tooltip'>With the default limit of 512 MB the test sometimes fails, in different
ways. Fixes https://issues.guix.gnu.org/55206.

* gnu/tests/ldap.scm (run-ldap-test): Increase memory size to 1024 MiB.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Timotej Lazar</td></tr>