Merge pull request #201 from milind-shakya-sp/sp

Add exclude parameters to be passed in.

caniusepython3/__main__.py

@@ -18,7 +18,6 @@
 from caniusepython3 import dependencies
 from caniusepython3 import projects as projects_
 
-import distlib.metadata
 import packaging.utils
 
 import argparse
@@ -45,6 +44,8 @@ def projects_from_cli(args):
                         help='name(s) of projects to test for Python 3 support')
     parser.add_argument('--verbose', '-v', action='store_true',
                         help='verbose output (e.g. list compatibility overrides)')
+    parser.add_argument('--exclude', '-e', action='append', default=[],
+                        help='Ignore list')
     parsed = parser.parse_args(args)
 
     if not (parsed.requirements or parsed.metadata or parsed.projects):
@@ -61,6 +62,7 @@ def projects_from_cli(args):
     projects.extend(projects_.projects_from_metadata(metadata))
     projects.extend(map(packaging.utils.canonicalize_name, parsed.projects))
 
+    projects = {i for i in projects if i not in parsed.exclude}
     return projects
 
 

caniusepython3/test/test_cli.py

@@ -66,6 +66,7 @@
 Requires-Dist: baz
 """
 
+
 class CLITests(unittest.TestCase):
 
     expected_requirements = frozenset(['foo-project', 'fizzy', 'pickything',
@@ -118,6 +119,17 @@ def test_cli_for_requirements(self):
             got = ciu_main.projects_from_cli(args)
         self.assertEqual(set(got), self.expected_requirements)
 
+    def test_excluding_requirements(self):
+        with tempfile.NamedTemporaryFile('w') as file:
+            file.write(EXAMPLE_REQUIREMENTS)
+            file.flush()
+            args = ['--requirements', file.name, '--exclude', 'pickything']
+            got = ciu_main.projects_from_cli(args)
+        expected_requirements = set(self.expected_requirements)
+        expected_requirements.remove('pickything')
+        self.assertNotIn('pickything', set(got))
+        self.assertEqual(set(got), expected_requirements)
+
     def test_cli_for_metadata(self):
         with tempfile.NamedTemporaryFile('w') as file:
             file.write(EXAMPLE_METADATA)