[PATCH v2 1/2] devtool: avoid recursion into nested git repos with submodules

[Clement Faure <clement.faure@arm.com>]

Prevent devtool from recursing into nested git repositories with
submodules to avoid double git submodule add operation.

Signed-off-by: Clement Faure <clement.faure@arm.com>
---
changes in v2:
- look for .gitmodules in files instead of dirs + files
---

 scripts/lib/devtool/__init__.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/lib/devtool/__init__.py b/scripts/lib/devtool/__init__.py
index 969d6dc13a..1359473496 100644
--- a/scripts/lib/devtool/__init__.py
+++ b/scripts/lib/devtool/__init__.py
@@ -248,6 +248,10 @@ def setup_git_repo(repodir, version, devbranch, basetag='devtool-base', d=None):
                     remote_url = stdout.splitlines()[0]
                     logger.error(os.path.relpath(os.path.join(root, ".."), root))
                     bb.process.run('git submodule add %s %s' % (remote_url, os.path.relpath(root, os.path.join(root, ".."))), cwd=os.path.join(root, ".."))
+                    # Do not descend into nested git repos that have submodules themselves.
+                    if ".gitmodules" in files:
+                        logger.warning('Nested git repository with submodules %s; devtool will not recurse into it', root)
+                        dirs[:] = []
                     found = True
                 if found:
                     oe.patch.GitApplyTree.commitIgnored("Add additional submodule from SRC_URI", dir=os.path.join(root, ".."), d=d)
-- 
2.43.0