Allow specifying rules to perform arbitrary actions in kitty when opening URLs

kitty_tests/open_actions.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# vim:fileencoding=utf-8
+# License: GPL v3 Copyright: 2018, Kovid Goyal <kovid at kovidgoyal.net>
+
+
+import os
+from contextlib import contextmanager
+
+from . import BaseTest
+
+
+@contextmanager
+def patch_env(**kw):
+    orig = os.environ.copy()
+    for k, v in kw.items():
+        if v is None:
+            os.environ.pop(k, None)
+        else:
+            os.environ[k] = v
+    yield
+    os.environ.clear()
+    os.environ.update(orig)
+
+
+class TestOpenActions(BaseTest):
+
+    def test_parsing_of_open_actions(self):
+        from kitty.open_actions import actions_for_url, KeyAction
+        spec = '''
+protocol file
+mime text/*
+has_fragment yes
+AcTion launch $EDITOR $FILE_PATH $FRAGMENT
+action
+
+protocol file
+mime text/*
+action ignored
+
+ext py,txt
+action one
+action two
+'''
+
+        def actions(url):
+            with patch_env(EDITOR='editor', FILE_PATH='notgood'):
+                return tuple(actions_for_url(url, spec))
+
+        def single(url, func, *args):
+            acts = actions(url)
+            self.ae(len(acts), 1)
+            self.ae(acts[0].func, func)
+            self.ae(acts[0].args, args)
+
+        single('file://hostname/tmp/moo.txt#23', 'launch', 'editor', '/tmp/moo.txt', '23')
+        single('some thing.txt', 'ignored')
+        self.ae(actions('x:///a.txt'), (KeyAction('one', ()), KeyAction('two', ())))