add script to approve PRs by author and title

approve-prs.sh

@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+usage() {
+  echo "Usage: $0 [-n] <repo> <author> <title-string> [<title-string>...]"
+  echo "  -n            Dry run — list matching PRs without approving"
+  echo "  Example: $0 owner/repo user 'hello world'"
+  echo "  Example: $0 -n owner/repo user 'hello' 'world'"
+  exit 1
+}
+
+# --- Dry run flag ---
+DRY_RUN=false
+if [[ "${1:-}" == "-n" ]]; then
+  DRY_RUN=true
+  shift
+fi
+
+if [[ $# -lt 3 ]]; then
+  usage
+fi
+
+REPO="$1"
+AUTHOR="$2"
+shift 2  # Remove repo and author from arguments
+
+# Escape a title string for safe use in a GitHub search phrase.
+# - Escapes backslashes and double quotes, so the result can be wrapped in "
+escape_github_search_phrase() {
+  local s=$1
+  s=${s//\\/\\\\}
+  s=${s//\"/\\\"}
+  printf '%s' "$s"
+}
+
+# Build search query for multiple title strings (OR logic)
+SEARCH_QUERY=""
+TITLE_COUNT=$#
+for TITLE_STRING in "$@"; do
+  ESCAPED_TITLE=$(escape_github_search_phrase "$TITLE_STRING")
+  if [[ -z "$SEARCH_QUERY" ]]; then
+    SEARCH_QUERY="\"$ESCAPED_TITLE\" in:title"
+  else
+    SEARCH_QUERY="$SEARCH_QUERY OR \"$ESCAPED_TITLE\" in:title"
+  fi
+done
+
+# Parenthesize combined OR clauses for clarity when multiple titles are used
+if [[ "$TITLE_COUNT" -gt 1 ]]; then
+  SEARCH_QUERY="($SEARCH_QUERY)"
+fi
+# --- Preflight checks ---
+if ! command -v gh &>/dev/null; then
+  echo "Error: gh CLI is not installed. See https://cli.github.com"
+  exit 1
+fi
+
+if ! gh auth status &>/dev/null; then
+  echo "Error: gh is not authenticated. Run 'gh auth login' first."
+  exit 1
+fi
+
+# --- Fetch matching PRs ---
+echo "Search query: $SEARCH_QUERY"
+echo "Fetching PRs..."
+PR_LIST=$(gh pr list \
+  --repo "$REPO" \
+  --state open \
+  --author "$AUTHOR" \
+  --search "$SEARCH_QUERY" \
+  --limit 200 \
+  --json number,title,reviews \
+  --jq '.[] | "\(.number) \(if (.reviews | map(select(.state == "APPROVED")) | length > 0) then "APPROVED" else "PENDING" end) \(.title)"') || {
+    echo "Error: Failed to fetch PRs. Check that '$REPO' exists and you have access."
+    exit 1
+  }
+
+if [[ -z "$PR_LIST" ]]; then
+  echo "No matching PRs found."
+  exit 0
+fi
+
+# --- Summary ---
+echo ""
+echo "Matched PRs:"
+while IFS= read -r LINE; do
+  PR_NUMBER=$(echo "$LINE" | awk '{print $1}')
+  PR_STATUS=$(echo "$LINE" | awk '{print $2}')
+  PR_TITLE=$(echo "$LINE" | cut -d' ' -f3-)
+  echo "  #$PR_NUMBER [$PR_STATUS]: $PR_TITLE"
+done <<< "$PR_LIST"
+echo ""
+
+if [[ "$DRY_RUN" == true ]]; then
+  echo "Dry run complete. No PRs were approved."
+  exit 0
+fi
+
+# --- Confirm and approve ---
+while IFS= read -r LINE; do
+  PR_NUMBER=$(echo "$LINE" | awk '{print $1}')
+  PR_STATUS=$(echo "$LINE" | awk '{print $2}')
+  PR_TITLE=$(echo "$LINE" | cut -d' ' -f3-)
+
+  if [[ "$PR_STATUS" == "APPROVED" ]]; then
+    echo "Already approved — PR #$PR_NUMBER: $PR_TITLE"
+  else
+    echo "PR #$PR_NUMBER: $PR_TITLE"
+    read -rn 1 -p "Approve this PR? (y/N): " CONFIRM </dev/tty
+    echo
+
+    if [[ "$CONFIRM" =~ ^[Yy]$ ]]; then
+      if gh pr review "$PR_NUMBER" --repo "$REPO" --approve; then
+        echo "Approved PR #$PR_NUMBER"
+      else
+        echo "Warning: Failed to approve PR #$PR_NUMBER (you may be the author, or lack permission)"
+      fi
+    else
+      echo "Skipped PR #$PR_NUMBER"
+    fi
+  fi
+
+  echo ""
+done <<< "$PR_LIST"
+
+echo "Done."