gh-subscribe

#!/usr/bin/env bash

set -eu -o pipefail

# NAME
#     gh-subscribe - Subscribe to notifications for GitHub repositories.
#
# SYNOPSIS
#     ./gh-subscribe
#
# DESCRIPTION
#     This script retrieves a list of remote GitHub repositories associated with the current Git project
#     and automatically subscribes to notifications for these repositories using the GitHub API.
#
# REQUIREMENTS
#     - The script requires a valid GitHub token to be set in the environment variable GITHUB_TOKEN.
#     - curl utility is required for API requests.
#
# USAGE
#     To run this script, navigate to a Git repository and execute:
#         ./gh-subscribe
#
#     Ensure that the `GITHUB_TOKEN` environment variable is exported with a valid personal access token
#     before running this script.
#
# EXAMPLES
#     $ export GITHUB_TOKEN=your_personal_access_token
#     $ ./gh-subscribe
#
# NOTES
#     - The script subscribes you to all repositories listed in your Git remotes.
#     - Existing subscription settings will be updated to ensure notifications are enabled
#       and ignored topics are turned off.
#```

if [ -z "$GITHUB_TOKEN" ]; then
    echo "GITHUB_TOKEN is not set" >&2
    exit 1
fi

owner_repos="$(git remote -v | sed -E 's#.*(github\.com[:/])([^/]+)/([^.]+).*#\2/\3#g' | sort -u)"

for owner_repo in ${owner_repos}; do
  curl -L \
    -X PUT \
    -H "Accept: application/vnd.github+json" \
    -H "Authorization: Bearer ${GITHUB_TOKEN}" \
    -H "X-GitHub-Api-Version: 2022-11-28" \
    "https://api.github.com/repos/${owner_repo}/subscription" \
    -d '{"subscribed":true,"ignored":false}'
done