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, 8 insertions, 5 deletions

diff --git a/mesonbuild/msubprojects.py b/mesonbuild/msubprojects.py
index 21f0853..f8c0b92 100755
--- a/mesonbuild/msubprojects.py
+++ b/mesonbuild/msubprojects.py
@@ -394,19 +394,22 @@ class Runner:
 
     def update(self) -> bool:
         self.log(f'Updating {self.wrap.name}...')
+        success = False
         if self.wrap.type == 'file':
-            return self.update_file()
+            success = self.update_file()
         elif self.wrap.type == 'git':
-            return self.update_git()
+            success = self.update_git()
         elif self.wrap.type == 'hg':
-            return self.update_hg()
+            success = self.update_hg()
         elif self.wrap.type == 'svn':
-            return self.update_svn()
+            success = self.update_svn()
         elif self.wrap.type is None:
             self.log('  -> Cannot update subproject with no wrap file')
         else:
             self.log('  -> Cannot update', self.wrap.type, 'subproject')
-        return True
+        if success:
+            self.wrap.update_hash_cache(self.wrap_resolver.dirname)
+        return success
 
     def checkout(self) -> bool:
         options = T.cast('CheckoutArguments', self.options)