From: Thomas Roos <[email protected]>

When a .gitmodules file exists but is empty then devtool finish fails.
Add an additional check for this.

[YOCTO #14999]

Signed-off-by: Thomas Roos <[email protected]>
Signed-off-by: Luca Ceresoli <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
(cherry picked from commit b4f0f7c4934bade9e4d4a1086f9d8b29d8e9ad45)
Signed-off-by: Steve Sakoman <[email protected]>
---
 meta/classes/externalsrc.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/externalsrc.bbclass b/meta/classes/externalsrc.bbclass
index ed118afada..9c9451e528 100644
--- a/meta/classes/externalsrc.bbclass
+++ b/meta/classes/externalsrc.bbclass
@@ -225,7 +225,7 @@ def srctree_hash_files(d, srcdir=None):
             env['GIT_INDEX_FILE'] = tmp_index.name
             subprocess.check_output(['git', 'add', '-A', '.'], cwd=s_dir, 
env=env)
             git_sha1 = subprocess.check_output(['git', 'write-tree'], 
cwd=s_dir, env=env).decode("utf-8")
-            if os.path.exists(os.path.join(s_dir, ".gitmodules")):
+            if os.path.exists(os.path.join(s_dir, ".gitmodules")) and 
os.path.getsize(os.path.join(s_dir, ".gitmodules")) > 0:
                 submodule_helper = subprocess.check_output(["git", "config", 
"--file", ".gitmodules", "--get-regexp", "path"], cwd=s_dir, 
env=env).decode("utf-8")
                 for line in submodule_helper.splitlines():
                     module_dir = os.path.join(s_dir, 
line.rsplit(maxsplit=1)[1])
-- 
2.25.1

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