gitsmy.py: Fix unpack of submodules of submodules

If the submodule is in a subdirectory, it needs to have that structure
preserved.  This means the unpack path needs to be in the 'dirname' of the
final path -- since the unpack directory name is specified in the URI.

Additional specific test cases were added to ensure this is working properly
based on two recent error reports.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 8c8ecec2a722bc2885e2648d41ac8df07bdf660d)
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>

2 files changed, 32 insertions, 3 deletions

diff --git a/lib/bb/fetch2/gitsm.py b/lib/bb/fetch2/gitsm.py
index faffb4c77..f45546b49 100644
--- a/lib/bb/fetch2/gitsm.py
+++ b/lib/bb/fetch2/gitsm.py
@@ -176,12 +176,11 @@ class GitSM(Git):
 
             try:
                 newfetch = Fetch([url], d, cache=False)
-                newfetch.unpack(root=os.path.join(repo_conf, 'modules'))
+                newfetch.unpack(root=os.path.dirname(os.path.join(repo_conf, 'modules', modpath)))
             except Exception as e:
                 logger.error('gitsm: submodule unpack failed: %s %s' % (type(e).__name__, str(e)))
                 raise
 
-            newfetch = Fetch([url], d, cache=False)
             local_path = newfetch.localpath(url)
 
             # Correct the submodule references to the local download version...
@@ -191,7 +190,11 @@ class GitSM(Git):
                 runfetchcmd("%(basecmd)s config submodule.%(module)s.shallow true" % {'basecmd': ud.basecmd, 'module': module}, d, workdir=ud.destdir)
 
             # Ensure the submodule repository is NOT set to bare, since we're checking it out...
-            runfetchcmd("%s config core.bare false" % (ud.basecmd), d, quiet=True, workdir=os.path.join(repo_conf, 'modules', modpath))
+            try:
+                runfetchcmd("%s config core.bare false" % (ud.basecmd), d, quiet=True, workdir=os.path.join(repo_conf, 'modules', modpath))
+            except:
+                logger.error("Unable to set git config core.bare to false for %s" % os.path.join(repo_conf, 'modules', modpath))
+                raise
 
         Git.unpack(self, ud, destdir, d)
 
diff --git a/lib/bb/tests/fetch.py b/lib/bb/tests/fetch.py
index de3b0ce7b..e9ad80767 100644
--- a/lib/bb/tests/fetch.py
+++ b/lib/bb/tests/fetch.py
@@ -912,6 +912,32 @@ class FetcherNetworkTest(FetcherTest):
         if os.path.exists(os.path.join(repo_path, 'bitbake-gitsm-test1')):
             self.assertTrue(os.path.exists(os.path.join(repo_path, 'bitbake-gitsm-test1', 'bitbake')), msg='submodule of submodule missing')
 
+        # The following external repositories have show failures in fetch and unpack operations
+        # We want to avoid regressions!
+        url = "gitsm://github.com/bus1/dbus-broker;protocol=git;rev=fc874afa0992d0c75ec25acb43d344679f0ee7d2"
+        fetcher = bb.fetch.Fetch([url], self.d)
+        fetcher.download()
+        # Previous cwd has been deleted
+        os.chdir(os.path.dirname(self.unpackdir))
+        fetcher.unpack(self.unpackdir)
+
+        repo_path = os.path.join(self.tempdir, 'unpacked', 'git')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/subprojects/c-dvar/config')), msg='Missing submodule config "subprojects/c-dvar"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/subprojects/c-list/config')), msg='Missing submodule config "subprojects/c-list"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/subprojects/c-rbtree/config')), msg='Missing submodule config "subprojects/c-rbtree"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/subprojects/c-sundry/config')), msg='Missing submodule config "subprojects/c-sundry"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/subprojects/c-utf8/config')), msg='Missing submodule config "subprojects/c-utf8"')
+
+        url = "gitsm://github.com/CLIUtils/CLI11;protocol=git;rev=bd4dc911847d0cde7a6b41dfa626a85aab213baf"
+        fetcher = bb.fetch.Fetch([url], self.d)
+        fetcher.download()
+        # Previous cwd has been deleted
+        os.chdir(os.path.dirname(self.unpackdir))
+        fetcher.unpack(self.unpackdir)
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/extern/googletest/config')), msg='Missing submodule config "extern/googletest"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/extern/json/config')), msg='Missing submodule config "extern/json"')
+        self.assertTrue(os.path.exists(os.path.join(repo_path, '.git/modules/extern/sanitizers/config')), msg='Missing submodule config "extern/sanitizers"')
+
 class TrustedNetworksTest(FetcherTest):
     def test_trusted_network(self):
         # Ensure trusted_network returns False when the host IS in the list.