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-rwxr-xr-xtesting/languages79
1 files changed, 79 insertions, 0 deletions
diff --git a/testing/languages b/testing/languages
new file mode 100755
index 0000000..5e8fc9e
--- /dev/null
+++ b/testing/languages
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import concurrent.futures
+import json
+import os.path
+import subprocess
+import sys
+
+EXCLUDED = frozenset((
+ ('windows-latest', 'docker'),
+ ('windows-latest', 'docker_image'),
+ ('windows-latest', 'lua'),
+ ('windows-latest', 'swift'),
+))
+
+
+def _lang_files(lang: str) -> frozenset[str]:
+ prog = f'''\
+import json
+import os.path
+import sys
+
+import pre_commit.languages.{lang}
+import tests.languages.{lang}_test
+
+modules = sorted(
+ os.path.relpath(v.__file__)
+ for k, v in sys.modules.items()
+ if k.startswith(('pre_commit.', 'tests.', 'testing.'))
+)
+print(json.dumps(modules))
+'''
+ out = json.loads(subprocess.check_output((sys.executable, '-c', prog)))
+ return frozenset(out)
+
+
+def main() -> int:
+ parser = argparse.ArgumentParser()
+ parser.add_argument('--all', action='store_true')
+ args = parser.parse_args()
+
+ langs = [
+ os.path.splitext(fname)[0]
+ for fname in sorted(os.listdir('pre_commit/languages'))
+ if fname.endswith('.py') and fname != '__init__.py'
+ ]
+
+ if not args.all:
+ with concurrent.futures.ThreadPoolExecutor(os.cpu_count()) as exe:
+ by_lang = {
+ lang: files
+ for lang, files in zip(langs, exe.map(_lang_files, langs))
+ }
+
+ diff_cmd = ('git', 'diff', '--name-only', 'origin/main...HEAD')
+ files = set(subprocess.check_output(diff_cmd).decode().splitlines())
+
+ langs = [
+ lang
+ for lang, lang_files in by_lang.items()
+ if lang_files & files
+ ]
+
+ matched = [
+ {'os': os, 'language': lang}
+ for os in ('windows-latest', 'ubuntu-latest')
+ for lang in langs
+ if (os, lang) not in EXCLUDED
+ ]
+
+ with open(os.environ['GITHUB_OUTPUT'], 'a') as f:
+ f.write(f'languages={json.dumps(matched)}\n')
+ return 0
+
+
+if __name__ == '__main__':
+ raise SystemExit(main())