# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1457692138 0
# Node ID 10252652c6e4f6861b5ea921adf3b5cb275ba4c2
# Parent  d5512a0a8ad6ed260cb8eab84843d47d3048d500
extensions: factor import error reporting out

To clarify third party extensions lookup, we are about to add a third place
where extensions are searched for. So we factor the error reporting logic out to
be able to easily reuse it in the next patch.

diff -r d5512a0a8ad6 -r 10252652c6e4 mercurial/extensions.py
--- a/mercurial/extensions.py	Fri Mar 11 10:24:54 2016 +0000
+++ b/mercurial/extensions.py	Fri Mar 11 10:28:58 2016 +0000
@@ -79,6 +79,12 @@
         mod = getattr(mod, comp)
     return mod
 
+def _reportimporterror(ui, err, failed, next):
+    ui.debug('could not import %s (%s): trying %s\n'
+             % (failed, err, next))
+    if ui.debugflag:
+        ui.traceback()
+
 def load(ui, name, path):
     if name.startswith('hgext.') or name.startswith('hgext/'):
         shortname = name[6:]
@@ -98,10 +104,7 @@
         try:
             mod = _importh("hgext.%s" % name)
         except ImportError as err:
-            ui.debug('could not import hgext.%s (%s): trying %s\n'
-                     % (name, err, name))
-            if ui.debugflag:
-                ui.traceback()
+            _reportimporterror(ui, err, "hgext.%s" % name, name)
             mod = _importh(name)
 
     # Before we do anything with the extension, check against minimum stated