From ec7a81ad8620ef0f94be7f84eb946bc90ad1446c Mon Sep 17 00:00:00 2001
From: Daniele Nicolodi <daniele@grinta.net>
Date: Sat, 12 Oct 2024 13:00:03 +0200
Subject: [PATCH] mintro: Add license and license_files to project
 introspection data

---
 mesonbuild/ast/introspection.py | 20 ++++++++++++++++++--
 mesonbuild/mintro.py            |  6 ++++--
 unittests/allplatformstests.py  | 11 ++++++++++-
 3 files changed, 32 insertions(+), 5 deletions(-)

diff --git a/mesonbuild/ast/introspection.py b/mesonbuild/ast/introspection.py
index 89df1d25a..b2eb1f8cd 100644
--- a/mesonbuild/ast/introspection.py
+++ b/mesonbuild/ast/introspection.py
@@ -93,14 +93,30 @@ class IntrospectionInterpreter(AstInterpreter):
         if len(args) < 1:
             raise InvalidArguments('Not enough arguments to project(). Needs at least the project name.')
 
+        def _str_list(node: T.Any) -> T.Optional[T.List[str]]:
+            if isinstance(node, ArrayNode):
+                r = []
+                for v in node.args.arguments:
+                    if not isinstance(v, StringNode):
+                        return None
+                    r.append(v.value)
+                return r
+            if isinstance(node, StringNode):
+                return [node.value]
+            return None
+
         proj_name = args[0]
         proj_vers = kwargs.get('version', 'undefined')
-        proj_langs = self.flatten_args(args[1:])
         if isinstance(proj_vers, ElementaryNode):
             proj_vers = proj_vers.value
         if not isinstance(proj_vers, str):
             proj_vers = 'undefined'
-        self.project_data = {'descriptive_name': proj_name, 'version': proj_vers}
+        proj_langs = self.flatten_args(args[1:])
+        # Match the value returned by ``meson.project_license()`` when
+        # no ``license`` argument is specified in the ``project()`` call.
+        proj_license = _str_list(kwargs.get('license', None)) or ['unknown']
+        proj_license_files = _str_list(kwargs.get('license_files', None)) or []
+        self.project_data = {'descriptive_name': proj_name, 'version': proj_vers, 'license': proj_license, 'license_files': proj_license_files}
 
         optfile = os.path.join(self.source_root, self.subdir, 'meson.options')
         if not os.path.exists(optfile):
diff --git a/mesonbuild/mintro.py b/mesonbuild/mintro.py
index 07ad533d3..810a2b674 100644
--- a/mesonbuild/mintro.py
+++ b/mesonbuild/mintro.py
@@ -470,10 +470,12 @@ def list_machines(builddata: build.Build) -> T.Dict[str, T.Dict[str, T.Union[str
         machines[m]['object_suffix'] = machine.get_object_suffix()
     return machines
 
-def list_projinfo(builddata: build.Build) -> T.Dict[str, T.Union[str, T.List[T.Dict[str, str]]]]:
-    result: T.Dict[str, T.Union[str, T.List[T.Dict[str, str]]]] = {
+def list_projinfo(builddata: build.Build) -> T.Dict[str, T.Union[str, T.List[str], T.List[T.Dict[str, str]]]]:
+    result: T.Dict[str, T.Union[str, T.List[str], T.List[T.Dict[str, str]]]] = {
         'version': builddata.project_version,
         'descriptive_name': builddata.project_name,
+        'license': builddata.dep_manifest[builddata.project_name].license,
+        'license_files': [f[1].fname for f in builddata.dep_manifest[builddata.project_name].license_files],
         'subproject_dir': builddata.subproject_dir,
     }
     subprojects = []
diff --git a/unittests/allplatformstests.py b/unittests/allplatformstests.py
index ca4b194e6..afea39742 100644
--- a/unittests/allplatformstests.py
+++ b/unittests/allplatformstests.py
@@ -3021,6 +3021,8 @@ class AllPlatformTests(BasePlatformTests):
         expected = {
             'descriptive_name': 'proj',
             'version': 'undefined',
+            'license': ['unknown'],
+            'license_files': [],
             'subproject_dir': 'subprojects',
             'subprojects': [
                 {
@@ -3415,7 +3417,14 @@ class AllPlatformTests(BasePlatformTests):
         self.assertListEqual(dependencies_to_find, [])
 
         # Check projectinfo
-        self.assertDictEqual(res['projectinfo'], {'version': '1.2.3', 'descriptive_name': 'introspection', 'subproject_dir': 'subprojects', 'subprojects': []})
+        self.assertDictEqual(res['projectinfo'], {
+            'version': '1.2.3',
+            'license': ['unknown'],
+            'license_files': [],
+            'descriptive_name': 'introspection',
+            'subproject_dir': 'subprojects',
+            'subprojects': []
+        })
 
         # Check targets
         targets_to_find = {