👷(circle) setup circle ci

Add circleci configuration. Add jobs and workflows.

gitlint/gitlint_emoji.py

@@ -0,0 +1,37 @@
+"""
+Gitlint extra rule to validate that the message title is of the form
+"<gitmoji>(<scope>) <subject>"
+"""
+from __future__ import unicode_literals
+
+import re
+
+import requests
+
+from gitlint.rules import CommitMessageTitle, LineRule, RuleViolation
+
+
+class GitmojiTitle(LineRule):
+    """
+    This rule will enforce that each commit title is of the form "<gitmoji>(<scope>) <subject>"
+    where gitmoji is an emoji from the list defined in https://gitmoji.carloscuesta.me and
+    subject should be all lowercase
+    """
+
+    id = "UC1"
+    name = "title-should-have-gitmoji-and-scope"
+    target = CommitMessageTitle
+
+    def validate(self, title, _commit):
+        """
+        Download the list possible gitmojis from the project's github repository and check that
+        title contains one of them.
+        """
+        gitmojis = requests.get(
+            "https://raw.githubusercontent.com/carloscuesta/gitmoji/master/src/data/gitmojis.json"
+        ).json()["gitmojis"]
+        emojis = [item["emoji"] for item in gitmojis]
+        pattern = r"^({:s})\(.*\)\s[a-z].*$".format("|".join(emojis))
+        if not re.search(pattern, title):
+            violation_msg = 'Title does not match regex "<gitmoji>(<scope>) <subject>"'
+            return [RuleViolation(self.id, violation_msg, title)]