Basic script with test scope checking

README.md

@@ -0,0 +1,3 @@
+
+Script for checking whether some Maven project has minimal dependencies.
+

maven_check_minimal_deps/__main__.py

@@ -0,0 +1,66 @@
+import subprocess
+import bs4
+import argparse
+import logging
+from pathlib import Path
+
+logger = logging.getLogger(__name__)
+
+def parse_arguments():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('project', type=Path)
+    return parser.parse_args()
+
+def can_compile(path: Path) -> bool:
+    process = subprocess.run(['mvn', 'clean', 'compile'], cwd=path, check=False,capture_output=True)
+    return process.returncode == 0
+
+def write_pom(project_path: Path, pom: bs4.BeautifulSoup | str) -> None:
+    with open(project_path / 'pom.xml', 'w') as f:
+        f.write(str(pom))
+
+def main():
+    logging.basicConfig()
+    logger.setLevel('INFO')
+    args = parse_arguments()
+
+    assert can_compile(args.project), 'Project did not compile before modification!'
+
+    with open(args.project / 'pom.xml') as f:
+        original_pom = f.read()
+    pom = bs4.BeautifulSoup(original_pom, 'lxml-xml')
+
+    main_dependencies = []
+    for dep in pom.select('dependencies > dependency'):
+        if dep.scope is None:
+            main_dependencies.append(dep)
+
+    errors = []
+
+    for dep in main_dependencies:
+        name = '{}:{}'.format(dep.groupId.get_text(), dep.artifactId.get_text())
+        logger.info('Checking %s', name)
+        dep.insert(-1, bs4.BeautifulSoup('<scope>test</scope>', 'lxml-xml'))
+
+        write_pom(args.project, pom)
+
+        if can_compile(args.project):
+            errors.append(f'Could move {name} to test scope')
+            logger.error('%s', errors[-1])
+        else:
+            dep.scope.extract()
+        del dep, name
+
+    logger.info('Resetting POM')
+    write_pom(args.project, original_pom)
+    logger.info('Finished checks')
+
+    if errors:
+        logger.error('Encountered %d errors', len(errors))
+        for error in errors:
+            logger.error('%s', error)
+        exit(1)
+
+if __name__ == '__main__':
+    main()
+