interpreter: Fix missing subsubproject summary when subproject fails

In the case main->subp->subsubp, if subsubp succeed to configure but
subp subsequentially fails, subsubp is still being built but its summary
was missing.

mesonbuild/interpreter/interpreter.py

@@ -923,6 +923,7 @@ external dependencies (including libraries) must go to "dependencies".''')
             subi.modules = self.modules
             subi.holder_map = self.holder_map
             subi.bound_holder_map = self.bound_holder_map
+            subi.summary = self.summary
 
             subi.subproject_stack = self.subproject_stack + [subp_name]
             current_active = self.active_projectname
@@ -952,7 +953,6 @@ external dependencies (including libraries) must go to "dependencies".''')
         self.build.merge(subi.build)
         self.build.subprojects[subp_name] = subi.project_version
         self.coredata.initialized_subprojects.add(subp_name)
-        self.summary.update(subi.summary)
         return self.subprojects[subp_name]
 
     def _do_subproject_cmake(self, subp_name, subdir, subdir_abs, default_options, kwargs):
@@ -1280,8 +1280,9 @@ external dependencies (including libraries) must go to "dependencies".''')
         # Print all summaries, main project last.
         mlog.log('')  # newline
         main_summary = self.summary.pop('', None)
-        for _, summary in sorted(self.summary.items()):
-            summary.dump()
+        for subp_name, summary in sorted(self.summary.items()):
+            if self.subprojects[subp_name].found():
+                summary.dump()
         if main_summary:
             main_summary.dump()
 

run_unittests.py

@@ -5310,6 +5310,10 @@ class AllPlatformTests(BasePlatformTests):
                 integer: 1
                 boolean: True
 
+            subsub undefined
+
+                Something: Some value
+
             My Project 1.0
 
               Configuration
@@ -5339,6 +5343,7 @@ class AllPlatformTests(BasePlatformTests):
               Subprojects
                 sub            : YES
                 sub2           : NO Problem encountered: This subproject failed
+                subsub         : YES
             ''')
         expected_lines = expected.split('\n')[1:]
         out_start = out.find(expected_lines[0])

test cases/unit/72 summary/subprojects/sub2/meson.build

@@ -1,5 +1,6 @@
 project('sub2')
 
-error('This subproject failed')
+subproject('subsub')
 
 summary('Section', 'Should not be seen')
+error('This subproject failed')

test cases/unit/72 summary/subprojects/sub2/subprojects/subsub/meson.build

@@ -0,0 +1,3 @@
+project('subsub')
+
+summary('Something', 'Some value')