wrap: Fix crash with file based wraps

Add unit test to avoid regressions in the future.

mesonbuild/wrap/wrap.py

@@ -198,7 +198,7 @@ class Resolver:
         raise WrapException(m.format(out))
 
     def get_file(self):
-        path = self.get_file_internal(self.wrap, 'source')
+        path = self.get_file_internal('source')
         extract_dir = self.subdir_root
         # Some upstreams ship packages that do not have a leading directory.
         # Create one for them.
@@ -319,8 +319,8 @@ class Resolver:
         self.download(what, cache_path)
         return cache_path
 
-    def apply_patch(self, p):
-        path = self.get_file_internal(p, 'patch')
+    def apply_patch(self):
+        path = self.get_file_internal('patch')
         try:
             shutil.unpack_archive(path, self.subdir_root)
         except Exception:

test cases/common/158 wrap file should not failed/meson.build

@@ -3,6 +3,7 @@ project('mainproj', 'c',
 )
 
 subproject('zlib')
+subproject('foo')
 
 executable('grabprog', files('src/subprojects/prog.c'))
 executable('grabprog2', files('src/subprojects/foo/prog2.c'))

test cases/common/158 wrap file should not failed/subprojects/foo.wrap

@@ -0,0 +1,11 @@
+[wrap-file]
+directory = foo-1.0
+
+source_url = http://something.invalid
+source_filename = foo-1.0.tar.xz
+source_hash = ae5fc03185654f76b459db16ca25809703f8821aeb39a433902244bb479c4b79
+lead_directory_missing = true
+
+patch_url = https://something.invalid/patch
+patch_filename = foo-1.0-patch.tar.xz
+patch_hash = 8f2e286a4b190228d4e0c25ddc91195449cfb5e5c52006355838964b244037da