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GitHub Email API

The GitHub email API script reads an email from standard in and will do one of two things:

  1. If the email is from notifications@github.com then it will change the Reply-To header into me+base64-encoded-original-reply-to@example.org and write the result to standard out.

    This means replies are sent to yourself instead of GitHub which allow us to process them before they go to GitHub.

  2. If the email is to me+base64-encoded-reply-to@example.org then it will look for lines in the email matching these patterns:

     /^state:\s*(open|closed)/
 /^assignee:\s*(.*)/
 /^title:\s*(.+)/
 /^labels?:\s*(.*)/

    If any are found then it will update the issue (found by looking at the Message-ID header) with the corresponding value.

    In addition to updating the issue, it will resend the email to the original reply-to address after having removed all command lines, assuming the (non-quoted) body of the email is non-empty.

Install

  1. Clone this repository to your server:

     git clone https://github.com/sorbits/github-email-api.git

  2. Install required gems (via bundler):

     bundle install

  3. Create a GitHub OAuth token:

     curl -u «user» -d '{"scopes":["repo"],"note":"GitHub Email API"}' https://api.github.com/authorizations

  4. Create ~/.config/github-email-api, e.g.:

     oauth_token: «token»
 email:       "me@example.org"
 log_file:    "~/logs/github-email-api.log"

  5. Setup your mail server to run email through procmail.

  6. Add the following to ~/.procmailrc:

     # Handle GitHub notification email
 :0fw
 * ^From:.*\<notifications@github\.com\>
 | "/path/to/github-email-api"

 # Handle replies to a notification (me+…@example.org)
 :0w
 * ^To:.*\<me\+(.+)@example\.org\>
 | "/path/to/github-email-api"

 # Send an email if the above command failed
 :0e
 | (formail -rtI'From: "GitHub Email API" <me@example.org>' \
     ; echo "Error processing reply, see log for details.") \
 | /usr/sbin/sendmail -oi -t -fme@example.org

Updating Labels

Label names can be prefixed with a minus (-) to remove them. For consistency an optional plus (+) prefix is allowed when setting labels. Example:

label: bug
label: +bug
label: -bug

Multiple labels can be specified by separating them with a comma or using multiple label/labels lines.

labels: -too-vague, +crash

If you use a label name that doesn’t already exist, it will be created.

Problems