[GITHUB] その日作業したPull Requestを抽出してMarkdownでサマリーを作るスクリプト

#!/bin/bash
# ============================================================
# gh_daily_report.sh
# その日に作成 or コメントしたPRをMarkdownで出力
# ============================================================

GITHUB_TOKEN="${GITHUB_TOKEN:-}"
REPO="${1:-}"
TARGET_DATE="${2:-$(date +%Y-%m-%d)}"

if [ -z "$GITHUB_TOKEN" ]; then
  echo "Error: GITHUB_TOKEN が設定されていません"
  exit 1
fi

if [ -z "$REPO" ]; then
  echo "Usage: $0 <owner/repo> [YYYY-MM-DD]"
  exit 1
fi

gh_api() {
  curl -sf \
    -H "Authorization: Bearer $GITHUB_TOKEN" \
    -H "Accept: application/vnd.github+json" \
    -H "X-GitHub-Api-Version: 2022-11-28" \
    "$1"
}

ME=$(gh_api "https://api.github.com/user" | jq -r '.login')
SINCE="${TARGET_DATE}T00:00:00+09:00"
UNTIL="${TARGET_DATE}T23:59:59+09:00"

echo "取得中... (repo: $REPO, date: $TARGET_DATE, user: $ME)" >&2

# ---- 1. 今日作成したPR ----
CREATED=$(gh_api \
  "https://api.github.com/repos/${REPO}/pulls?state=all&per_page=100" \
  | jq -r --arg me "$ME" --arg since "$SINCE" --arg until "$UNTIL" '
    .[] | select(.user.login == $me)
    | select(.created_at >= $since and .created_at <= $until)
    | {number: .number, title: .title, url: .html_url}
  ')

# ---- 2. 今日一般コメントしたPR (PRもissues APIで取れる) ----
ISSUE_COMMENT_PR_NUMBERS=$(gh_api \
  "https://api.github.com/repos/${REPO}/issues/comments?since=${SINCE}&per_page=100" \
  | jq -r --arg me "$ME" --arg until "$UNTIL" '
    .[] | select(.user.login == $me)
    | select(.created_at <= $until)
    | .issue_url | split("/") | last
  ' | sort -u)

# ---- 3. 今日レビューコメントしたPR ----
REVIEW_COMMENT_PR_NUMBERS=$(gh_api \
  "https://api.github.com/repos/${REPO}/pulls/comments?since=${SINCE}&per_page=100" \
  | jq -r --arg me "$ME" --arg until "$UNTIL" '
    .[] | select(.user.login == $me)
    | select(.created_at <= $until)
    | .pull_request_url | split("/") | last
  ' | sort -u)

# ---- コメント系のPR番号をまとめてタイトル取得 ----
ALL_COMMENT_NUMBERS=$(echo -e "${ISSUE_COMMENT_PR_NUMBERS}\n${REVIEW_COMMENT_PR_NUMBERS}" | sort -u | grep -v '^$')

COMMENTED=""
while IFS= read -r num; do
  [ -z "$num" ] && continue
  # ⬇️ テキストリンク形式 `-[タイトル](URL)` に修正
  item=$(gh_api "https://api.github.com/repos/${REPO}/pulls/${num}" \
    | jq -r 'select(.number != null) | "- [\(.title)](\(.html_url))"')
  [ -n "$item" ] && COMMENTED="${COMMENTED}${item}\n"
done <<< "$ALL_COMMENT_NUMBERS"

# ---- Markdown出力 ----
echo ""
echo "# 📋 作業サマリー ($TARGET_DATE)"
echo ""
echo "## 🔀 Pull Request"
echo ""

HAS=false

if [ -n "$CREATED" ]; then
  echo "### **作成**"
  # ⬇️ テキストリンク形式 `-[タイトル](URL)` に修正
  echo "$CREATED" | jq -r '"- [\(.title)](\(.url))"'
  echo ""
  HAS=true
fi

if [ -n "$(printf '%b' "$COMMENTED")" ]; then
  echo "### **コメント・レビュー**"
  printf "%b" "$COMMENTED"
  echo ""
  HAS=true
fi

if [ "$HAS" = false ]; then
  echo "_なし_"
fi

chmod +x gh_daily_report.sh

export GITHUB_TOKEN=ghp_xxxxx
./gh_daily_report.sh リポジトリ名

./gh_daily_report.sh リポジトリ名 2026-04-16