concretizer: call inject_patches_variants() on the roots of the specs (#20203)

As was done in the old concretizer. Fixes an issue where conditionally
patched dependencies did not show up in spec (gdal+jasper)

lib/spack/spack/solver/asp.py

@@ -1826,8 +1826,8 @@ def build_specs(self, function_tuples):
         # fix flags after all specs are constructed
         self.reorder_flags()
 
-        for s in self._specs.values():
-            spack.spec.Spec.inject_patches_variant(s)
+        for root in set([spec.root for spec in self._specs.values()]):
+            spack.spec.Spec.inject_patches_variant(root)
 
         # Add external paths to specs with just external modules
         for s in self._specs.values():

lib/spack/spack/test/cmd/dependents.py

@@ -23,7 +23,8 @@ def test_immediate_dependents(mock_packages):
         'libdwarf',
         'patch-a-dependency',
         'patch-several-dependencies',
-        'quantum-espresso'
+        'quantum-espresso',
+        'conditionally-patch-dependency'
     ])
 
 
@@ -38,7 +39,8 @@ def test_transitive_dependents(mock_packages):
         'multivalue-variant',
         'singlevalue-variant-dependent',
         'patch-a-dependency', 'patch-several-dependencies',
-        'quantum-espresso'
+        'quantum-espresso',
+        'conditionally-patch-dependency'
     ])
 
 

lib/spack/spack/test/concretize.py

@@ -967,3 +967,11 @@ def test_custom_compiler_version(self):
 
         s = Spec('a %gcc@foo os=redhat6').concretized()
         assert '%gcc@foo' in s
+
+    def test_all_patches_applied(self):
+        uuidpatch = 'a60a42b73e03f207433c5579de207c6ed61d58e4d12dd3b5142eb525728d89ea'
+        localpatch = 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
+        spec = spack.spec.Spec('conditionally-patch-dependency+jasper')
+        spec.concretize()
+        assert ((uuidpatch, localpatch) ==
+                spec['libelf'].variants['patches'].value)