[PATCH] subrepo: add status support for ignored files in git subrepos

[Mathias De Maré]

# HG changeset patch
# User Mathias De Maré <mathias.demare at gmail.com>
# Date 1417202175 -3600
#      Fre Nov 28 20:16:15 2014 +0100
# Node ID 38f8516fa91a71df42bf2ca5a7e20e54b540f590
# Parent  b913c394386f0a6ebbdcb7e321ff82816d7799fe
subrepo: add status support for ignored files in git subrepos

Retrieving the status of a git subrepo did not show ignored
files. Using 'git ls-files', we can retrieve these files
and display the correct status.

diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -1565,16 +1565,25 @@ class gitsubrepo(abstractsubrepo):
             if status == 'M':
                 modified.append(f)
             elif status == 'A':
                 added.append(f)
             elif status == 'D':
                 removed.append(f)
 
         deleted, unknown, ignored, clean = [], [], [], []
+
+        if not rev2:
+            command = ['ls-files', '--others', '--exclude-standard']
+            out = self._gitcommand(command)
+            for line in out.split('\n'):
+                if len(line) == 0:
+                    continue
+                unknown.append(line)
+
         return scmutil.status(modified, added, removed, deleted,
                               unknown, ignored, clean)
 
     def shortid(self, revid):
         return revid[:7]
 
 types = {
     'hg': hgsubrepo,
diff --git a/tests/test-subrepo-git.t b/tests/test-subrepo-git.t
--- a/tests/test-subrepo-git.t
+++ b/tests/test-subrepo-git.t
@@ -114,17 +114,20 @@ clone root separately, make different lo
 
   $ cd ../t
   $ hg clone . ../tb 2> /dev/null
   updating to branch default
   cloning subrepo s from $TESTTMP/gitroot
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
   $ cd ../tb/s
+  $ hg status --subrepos
   $ echo f > f
+  $ hg status --subrepos
+  ? s/f
   $ git add f
   $ cd ..
 
   $ hg status --subrepos
   A s/f
   $ hg commit --subrepos -m f
   committing subrepository s
   $ hg debugsub
@@ -417,24 +420,27 @@ Check hg update --clean
   $ cd s
   $ echo c1 > f1
   $ echo c1 > f2
   $ git add f1
   $ cd ..
   $ hg status -S
   M s/g
   A s/f1
+  ? s/f2
   $ ls s
   f
   f1
   f2
   g
   $ hg update --clean
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg status -S
+  ? s/f1
+  ? s/f2
   $ ls s
   f
   f1
   f2
   g
 
 Sticky subrepositories, no changes
   $ cd $TESTTMP/ta