Warn if wrap file changes

Save off the hash of the wrap file when first configuring a subproject.
When reconfiguring a subproject, check the hash of the wrap file
against the stored hash. If they don't match then warn the user.

1 files changed, 17 insertions, 1 deletions

diff --git a/unittests/allplatformstests.py b/unittests/allplatformstests.py
index 8e0f934..7f0dd44 100644
--- a/unittests/allplatformstests.py
+++ b/unittests/allplatformstests.py
@@ -3733,10 +3733,26 @@ class AllPlatformTests(BasePlatformTests):
                   patch_directory = wrap_git_builddef
                   revision = master
                 '''.format(upstream_uri)))
-            self.init(srcdir)
+            out = self.init(srcdir)
             self.build()
             self.run_tests()
 
+            # Make sure the warning does not occur on the first init.
+            out_of_date_warning = 'revision may be out of date'
+            self.assertNotIn(out_of_date_warning, out)
+
+            # Change the wrap's revisions, reconfigure, and make sure it does
+            # warn on the reconfigure.
+            with open(os.path.join(srcdir, 'subprojects', 'wrap_git.wrap'), 'w', encoding='utf-8') as f:
+                f.write(textwrap.dedent('''
+                  [wrap-git]
+                  url = {}
+                  patch_directory = wrap_git_builddef
+                  revision = not-master
+                '''.format(upstream_uri)))
+            out = self.init(srcdir, extra_args='--reconfigure')
+            self.assertIn(out_of_date_warning, out)
+
     def test_extract_objects_custom_target_no_warning(self):
         testdir = os.path.join(self.common_test_dir, '22 object extraction')