fetch/git: fix AttributeError in shallow extraction logic

This code checks to see if shallow is either disabled or the tarball is
missing, but the else block tries to print the tarball filename, and
this attribute doesn't exist at all when shallow is disabled. Handle the
two cases separately to give sane errors for both cases without the
exception:

    Exception: AttributeError: 'FetchData' object has no attribute 'fullshallow'

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index 15858a624..59a2ee8f8 100644
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -488,12 +488,15 @@ class Git(FetchMethod):
                 source_error.append("clone directory not available or not up to date: " + ud.clonedir)
 
         if not source_found:
-            if ud.shallow and os.path.exists(ud.fullshallow):
-                bb.utils.mkdirhier(destdir)
-                runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=destdir)
-                source_found = True
+            if ud.shallow:
+                if os.path.exists(ud.fullshallow):
+                    bb.utils.mkdirhier(destdir)
+                    runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=destdir)
+                    source_found = True
+                else:
+                    source_error.append("shallow clone not available: " + ud.fullshallow)
             else:
-                source_error.append("shallow clone not enabled or not available: " + ud.fullshallow)
+                source_error.append("shallow clone not enabled")
 
         if not source_found:
             raise bb.fetch2.UnpackError("No up to date source found: " + "; ".join(source_error), ud.url)