bitbake/fetch2: Ensure mirror tarballs have .done stamps so we don't redownload and corrupt them

[YOCTO #2154]

(Bitbake rev: 521d6b14151d3bf934b9597557f7ae46e50a3d7a)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/fetch2/git.py

@@ -214,6 +214,7 @@ class Git(FetchMethod):
             os.chdir(ud.clonedir)
             logger.info("Creating tarball of git repository")
             runfetchcmd("tar -czf %s %s" % (ud.fullmirror, os.path.join(".") ), d)
+            runfetchcmd("touch %s.done" % (ud.fullmirror), d)
 
     def unpack(self, ud, destdir, d):
         """ unpack the downloaded src to destdir"""