github-review-notify

#!/usr/bin/env bash

set -Eeuo pipefail

state_dir="${XDG_STATE_HOME:-$HOME/.local/state}/github-review-notify"
seen_reviews="$state_dir/reviews"
mkdir -p "$state_dir"
touch "$seen_reviews"
bootstrap=0
[ -s "$seen_reviews" ] || bootstrap=1

# Do not overlap requests if a slow API call outlives the timer interval.
exec 9>"$state_dir/lock"
flock -n 9 || exit 0

command -v gh >/dev/null 2>&1 || exit 0
command -v notify-send >/dev/null 2>&1 || exit 0

gh api --method GET /notifications --field participating=true --field per_page=50 --jq '
  .[] | select(.subject.type == "PullRequest") | .subject.url
' |
while IFS= read -r pull_request_url; do
  [ -n "$pull_request_url" ] || continue

  pull_request_info="$(gh api "$pull_request_url" --jq '[.repository.full_name, .number, .title, .state, .draft, .merged] | @tsv')" || continue
  IFS=$'\t' read -r repository number title pull_state draft merged <<< "$pull_request_info"
  review_status="open"
  [ "$draft" = true ] && review_status="draft"
  [ "$pull_state" = closed ] && review_status="closed"
  [ "$merged" = true ] && review_status="merged"

  gh api "$pull_request_url/reviews?per_page=100" --jq '
    .[]
    | select(.submitted_at != null)
    | [.id, .user.login, .state, (.body // "")] | @tsv
  ' | while IFS=$'\t' read -r review_id author review_state body; do
    [ -n "$review_id" ] || continue
    grep -qxF "$review_id" "$seen_reviews" && continue

    # Establish a baseline on first run instead of replaying old reviews.
    if [ "${bootstrap:-0}" = 1 ]; then
      printf '%s\n' "$review_id" >> "$seen_reviews"
      continue
    fi

    summary="${body//$'\n'/ }"
    summary="${summary//$'\r'/ }"
    summary="${summary//$'\t'/ }"
    summary="${summary:0:240}"
    [ -n "$summary" ] || summary="Review submitted: $review_state"
    pull_request_url="https://github.com/${repository}/pull/${number}"

    notify-send \
      --app-name="GitHub" \
      --icon="$HOME/dotfiles/linux/config/lucide/svg/message-square-quote.svg" \
      --expire-time=0 \
      --hint="string:x-github-review-url:${pull_request_url}" \
      --hint="string:x-github-review-repository:${repository}" \
      --hint="string:x-github-review-number:${number}" \
      --hint="string:x-github-review-title:${title}" \
      --hint="string:x-github-review-status:${review_status}" \
      --hint="string:x-github-review-author:${author}" \
      --hint="string:x-github-review-state:${review_state}" \
      "${repository}#${number}: review by ${author}" \
      "${title}: $summary"

    printf '%s\n' "$review_id" >> "$seen_reviews"
  done
done