allow consuming meson libname.a libs in MSBuildDeps (conan-io#18557)

* allow consuming meson libname.a libs in MSBuildDeps

* fix test in OSX

Author: memsharded

conan/tools/microsoft/msbuilddeps.py

@@ -157,9 +157,17 @@ def _vars_props_file(self, require, dep, name, cpp_info, build):
         :return: varfile content
         """
 
-        def add_valid_ext(libname):
+        def add_valid_ext(libname, libdirs=None):
             ext = os.path.splitext(libname)[1]
-            return '%s;' % libname if ext in VALID_LIB_EXTENSIONS else '%s.lib;' % libname
+            if ext in VALID_LIB_EXTENSIONS:
+                return f"{libname};"
+
+            lib_name = f"{libname}.lib"
+            if libdirs and not any(lib_name in os.listdir(d) for d in libdirs if os.path.isdir(d)):
+                meson_name = f"lib{libname}.a"
+                if any(meson_name in os.listdir(d) for d in libdirs if os.path.isdir(d)):
+                    lib_name = meson_name
+            return f"{lib_name};"
 
         pkg_placeholder = "$(Conan{}RootFolder)".format(name)
 
@@ -191,7 +199,7 @@ def join_paths(paths):
         res_dirs = join_paths(cpp_info.resdirs)
         include_dirs = join_paths(cpp_info.includedirs)
         lib_dirs = join_paths(cpp_info.libdirs)
-        libs = "".join([add_valid_ext(lib) for lib in cpp_info.libs])
+        libs = "".join([add_valid_ext(lib, cpp_info.libdirs) for lib in cpp_info.libs])
         # TODO: Missing objects
         system_libs = "".join([add_valid_ext(sys_dep) for sys_dep in cpp_info.system_libs])
         definitions = "".join("%s;" % d for d in cpp_info.defines)

test/integration/toolchains/microsoft/test_msbuilddeps.py

@@ -218,3 +218,28 @@ def test_msbuilddeps_relocatable(withdepl):
             text = text.replace('\\', '/')
             folder = c.current_folder.replace('\\', '/')
             assert folder not in text
+
+
+def test_msbuilddeps_consume_meson():
+    c = TestClient()
+    pkga = textwrap.dedent("""
+        import os
+        from conan import ConanFile
+        from conan.tools.files import save
+        class Pkg(ConanFile):
+            name = "pkga"
+            version = "0.1"
+            package_type = "static-library"
+            def package(self):
+                save(self, os.path.join(self.package_folder, "lib", "libpkga.a"), "")
+            def package_info(self):
+                self.cpp_info.libs = ["pkga"]
+        """)
+
+    c.save({"pkga/conanfile.py": pkga,
+            "app/conanfile.py": GenConanfile().with_requires("pkga/0.1")
+                                              .with_settings("arch", "build_type")})
+    c.run("create pkga -s arch=x86_64")
+    c.run("install app -g MSBuildDeps -s arch=x86_64")
+    deps = c.load("app/conan_pkga_vars_release_x64.props")
+    assert "<ConanpkgaLibraries>libpkga.a;</ConanpkgaLibraries>" in deps