# HG changeset patch
# User Augie Fackler <augie@google.com>
# Date 2019-07-23 18:37:51
# Node ID 7f1df70194972a5ff93c318b5b7f593e826c3408
# Parent  ab1900323b1d334a4211669cc6f483413b625013

debugcommands: add support for extensions adding their own debug info

We've had a couple of cases where it'd be handy at Google to add data
to `hg debuginstall`'s output. We've kludged around that at various
times, but it seems reasonable to let extensions add their own data
here so extension maintainers can get useful extra data.

Differential Revision: https://phab.mercurial-scm.org/D6681

diff --git a/mercurial/debugcommands.py b/mercurial/debugcommands.py
--- a/mercurial/debugcommands.py
+++ b/mercurial/debugcommands.py
@@ -1383,6 +1383,11 @@ def debuginstall(ui, **opts):
     fm.condwrite(err, 'usernameerror', _("checking username...\n %s\n"
         " (specify a username in your configuration file)\n"), err)
 
+    for name, mod in extensions.extensions():
+        handler = getattr(mod, 'debuginstall', None)
+        if handler is not None:
+            problems += handler(ui, fm)
+
     fm.condwrite(not problems, '',
                  _("no problems detected\n"))
     if not problems: