[OE-core] [PATCH] fetch2/gitsm: Unpack shallow mirror tarballs

[Paul Barker]

When a shallow mirror tarball is used to satisfy a gitsm URI it needs to
be unpacked so that the .gitmodules file can be examined.

Signed-off-by: Paul Barker <pbarker at konsulko.com>
---
 lib/bb/fetch2/gitsm.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/bb/fetch2/gitsm.py b/lib/bb/fetch2/gitsm.py
index aa121cbe..98f5dae5 100644
--- a/lib/bb/fetch2/gitsm.py
+++ b/lib/bb/fetch2/gitsm.py
@@ -169,6 +169,12 @@ class GitSM(Git):
                 raise
 
         Git.download(self, ud, d)
+
+        # If we're using a shallow mirror tarball it needs to be unpacked so
+        # that we can examine the .gitmodules file
+        if ud.shallow and os.path.exists(ud.fullshallow) and Git.need_update(self, ud, d):
+            bb.utils.mkdirhier(ud.clonedir)
+            runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=ud.clonedir)
         self.process_submodules(ud, ud.clonedir, download_submodule, d)
 
     def unpack(self, ud, destdir, d):
-- 
2.20.1