Gharry is a GitHub email notification resender optimized for my daily work.

1. Configure GitHub to send notificaition emails to Slack's muted channel.
2. Run Gharry which scans email notifications via Slack API periodically.
3. Filter, parse and re-send notifications to Slack's unmuted channel.

GitHub -[email]-> Slack -[Gharry]-> Slack

• Implementing my own notifier allows me to customize its behavior completely for my work. For example,
  • I want to unsubscribe some notifications automatically.
  • I want to change a notification level (presence or absense of @mention) per notification.
• I wanted to write something in Rust for the first time in a while.

• Do simple polling instead of event driven approach.
  • I don't have a permission to install webhooks to my organization.
  • The GitHub's notifications API cannot be used since it ignores review state changes.
• Do everything in a single thread with blocking. No asynchronous IO.
  • This is enough for this program.

A sample image of notifications from facebook/react when I'm watching the repository:

1. Slack setup

   • Create a bot to use Slack API.
   • Create two channels.
   • Configure email app and get an email address.

2. GitHub setup

   • Configure to send notifications to the email address created by Slack.
   • Generate an access token (scope: repo, notifications).

3. Gharry configuration

   • Put a config file in ~/.gharry/config.toml.

   slack_oauth_bot_token = "..."
   slack_mail_channel_id = "..."
   slack_dest_channel_id = "..."
   github_access_token = "..."
   github_login_name = "ryym"