bitbake: fetch2/git: prevent access to non-existing clonedir

A user friendly error is throw when neither the clonedir nor
fullshallow exist. Without the check, a difficult to interpret error
is throw from within the fetch command.

(Bitbake rev: 30cf2506007d25162f0805051212f54c39034ff3)

Signed-off-by: Urs Fässler <urs.fassler@bbv.ch>
Signed-off-by: Pascal Bach <pascal.bach@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 14 insertions, 1 deletions

diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index f13a25f99d..3e37f76ffb 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -479,8 +479,10 @@ class Git(FetchMethod):
         if ud.shallow and os.path.exists(ud.fullshallow) and self.clonedir_need_update(ud, d):
             bb.utils.mkdirhier(destdir)
             runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=destdir)
-        else:
+        elif not self.clonedir_need_update(ud, d):
             runfetchcmd("%s clone %s %s/ %s" % (ud.basecmd, ud.cloneflags, ud.clonedir, destdir), d)
+        else:
+            raise bb.fetch2.UnpackError("No up to date source found", ud.url)
 
         repourl = self._get_repo_url(ud)
         runfetchcmd("%s remote set-url origin %s" % (ud.basecmd, repourl), d, workdir=destdir)
diff --git a/bitbake/lib/bb/tests/fetch.py b/bitbake/lib/bb/tests/fetch.py
index 9bed06ba0e..f52241fbea 100644
--- a/bitbake/lib/bb/tests/fetch.py
+++ b/bitbake/lib/bb/tests/fetch.py
@@ -1699,6 +1699,17 @@ class GitShallowTest(FetcherTest):
         self.assertRefs(['master', 'origin/master'])
         self.assertRevCount(orig_revs - 1758)
 
+    def test_that_unpack_throws_an_error_when_the_git_clone_nor_shallow_tarball_exist(self):
+        self.add_empty_file('a')
+        fetcher, ud = self.fetch()
+        bb.utils.remove(self.gitdir, recurse=True)
+        bb.utils.remove(self.dldir, recurse=True)
+
+        with self.assertRaises(bb.fetch2.UnpackError) as context:
+            fetcher.unpack(self.d.getVar('WORKDIR'))
+
+        self.assertTrue("No up to date source found" in context.exception.msg)
+
     @skipIfNoNetwork()
     def test_that_unpack_does_work_when_using_git_shallow_tarball_but_tarball_is_not_available(self):
         self.d.setVar('SRCREV', 'e5939ff608b95cdd4d0ab0e1935781ab9a276ac0')