Move classes used by scripts to their own module

Those classes are used by wrapper scripts and we should not have to
import the rest of mesonlib, build.py, and all their dependencies for
that.

This renames mesonlib/ directory to utils/ and add a mesonlib.py module
that imports everything from utils/ to not have to change `import
mesonlib` everywhere. It allows to import utils.core without importing
the rest of mesonlib.

1 files changed, 11 insertions, 0 deletions

diff --git a/mesonbuild/scripts/test_loaded_modules.py b/mesonbuild/scripts/test_loaded_modules.py
new file mode 100644
index 0000000..b3547be
--- /dev/null
+++ b/mesonbuild/scripts/test_loaded_modules.py
@@ -0,0 +1,11 @@
+import sys
+import json
+import typing as T
+from . import meson_exe
+
+# This script is used by run_unittests.py to verify we don't load too many
+# modules when executing a wrapped command.
+def run(args: T.List[str]) -> int:
+    meson_exe.run(args)
+    print(json.dumps(list(sys.modules.keys())))
+    return 0