[OE-core] [PATCH 02/15] lib/oe/patch: fix PATCHTOOL = "git" with source in a subdirectory

[Paul Eggleton]

For recipes that have their actual source in a subdirectory of what is
fetched (e.g. mkelfimage), we need to find the root of the repository
within the GitApplyTree code that attempts to set up the required git
hooks and use that, rather than expecting the root to be the same as
${S}.

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 meta/lib/oe/patch.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/meta/lib/oe/patch.py b/meta/lib/oe/patch.py
index b838be8..f68d40f 100644
--- a/meta/lib/oe/patch.py
+++ b/meta/lib/oe/patch.py
@@ -313,9 +313,12 @@ class GitApplyTree(PatchTree):
             return runcmd(["sh", "-c", " ".join(shellcmd)], self.dir)
 
         # Add hooks which add a pointer to the original patch file name in the commit message
-        commithook = os.path.join(self.dir, '.git', 'hooks', 'commit-msg')
+        reporoot = (runcmd("git rev-parse --show-toplevel".split(), self.dir) or '').strip()
+        if not reporoot:
+            raise Exception("Cannot get repository root for directory %s" % self.dir)
+        commithook = os.path.join(reporoot, '.git', 'hooks', 'commit-msg')
         commithook_backup = commithook + '.devtool-orig'
-        applyhook = os.path.join(self.dir, '.git', 'hooks', 'applypatch-msg')
+        applyhook = os.path.join(reporoot, '.git', 'hooks', 'applypatch-msg')
         applyhook_backup = applyhook + '.devtool-orig'
         if os.path.exists(commithook):
             shutil.move(commithook, commithook_backup)
-- 
1.9.3