def parse_thread_action()

in ghd-notifier.py [0:0]

• 50 lines of code
• 15 McCabe index (conditional complexity)

def parse_thread_action(blob):
    """Parses a thread action (thread created/edited/deleted)"""
    action = blob.get("action")
    discussion = blob.get("discussion")
    user = discussion.get("user").get("login")
    title = discussion.get("title")
    category = discussion.get("category").get("slug")
    url = discussion.get("html_url")
    body = discussion.get("body")
    repository = blob.get("repository").get("name")
    node_id = discussion.get("node_id")
    if action in VALID_THREAD_ACTIONS:
        recipient = get_recipient(repository)
        if recipient:
            # The templates contain templates for the subject (first part)
            # and the content of the email (second part) ... split the template
            # up.
            subject, text = THREAD_ACTION.split("--", 1)

            # Define the name of the template for this action.
            action_name = "new_discussion"
            if action == "created":
                action_name = "new_discussion"
            elif action == "edited":
                action_name = "edit_discussion"
            elif action == "closed":
                action_name = "close_discussion"
            elif action == "reopened":
                action_name = "reopen_discussion"
            # Note: the subjects are checked for validity in
            # https://github.com/apache/infrastructure-p6/blob/production/modules/gitbox/files/asfgit/package/asfyaml.py
            # See VALID_GITHUB_SUBJECT_VARIABLES and validate_github_subject()
            # The variable names listed in VALID_GITHUB_SUBJECT_VARIABLES must be defined
            # here as local variables
            custom_subject_line = get_custom_subject(repository, action_name)  # Custom subject line?
            try:
                # If a custom subject line was defined, use that ...
                if custom_subject_line:
                    subject = custom_subject_line.format(**locals())
                # Otherwise use the default one, which is located in the title of the template.
                else:
                    subject = subject.format(**locals()).strip()
            except (KeyError, ValueError) as e:  # Template breakage can happen, ignore
                print(e)
                return

            unsub = recipient.replace("@", "-unsubscribe@")
            text = text.format(**locals()).strip()
            msg_headers = {}
            msgid = "<ghd-%s-%s@gitbox.apache.org>" % (node_id, str(uuid.uuid4()))
            msgid_OP = "<ghd-%s@gitbox.apache.org>" % node_id
            if action == "created":
                msgid = (
                    msgid_OP  # This is the first email, make a deterministic message id
                )
            else:
                msg_headers = {
                    "In-Reply-To": msgid_OP
                }  # Thread from the actual discussion parent
            asfpy.messaging.mail(
                sender=f"\"{user} (via GitHub)\" <git@apache.org>", recipient=recipient, subject=subject, message=text, messageid=msgid, headers=msg_headers
            )
            return f"[send] {user} {action} {url}: {title}"
    return f"[skip] {user} {action} {url}: {title}"