fetch-repos.sh

#!/usr/bin/env bash
# TotallySafePR: Fetch all GitHub repos (across orgs), store them, confirm with user.

set -euo pipefail

GITHUB_TOKEN="${GITHUB_TOKEN:-}"

if [[ -z "$GITHUB_TOKEN" ]]; then
  echo "GITHUB_TOKEN is not set."
  printf 'Paste your GitHub PAT: '
  read -rs GITHUB_TOKEN
  echo
  if [[ -z "$GITHUB_TOKEN" ]]; then
    echo "No token provided. Exiting."
    exit 1
  fi
fi

REPOS_FILE="${REPOS_FILE:-./repos.txt}"
TMP_REPOS=$(mktemp)
trap 'rm -f "$TMP_REPOS"' EXIT

# Slurp body from curl -D - output (headers then blank line then body)
body() { echo "$1" | awk 'BEGIN{skip=1} /^[[:space:]]*$/{skip=0;next} !skip'; }
# Next page URL from Link header
next_url() { echo "$1" | tr -d '\r' | awk -F'[:<>; ]+' '/^Link:/{for(i=1;i<=NF;i++) if($i=="rel=\"next\"") {print $(i-1); exit}}'; }

echo "Fetching your repositories (user repos you own)..."
url="https://api.github.com/user/repos?per_page=100&type=owner"
while [[ -n "$url" ]]; do
  resp=$(curl -sS -D - -H "Authorization: Bearer $GITHUB_TOKEN" "$url")
  body=$(body "$resp")
  if echo "$body" | jq -e '.message' &>/dev/null; then
    echo "API error: $(echo "$body" | jq -r '.message')" >&2
    exit 1
  fi
  echo "$body" | jq -r '.[].full_name' >> "$TMP_REPOS"
  url=$(next_url "$resp")
done

echo "Fetching organizations..."
orgs=$(curl -s -H "Authorization: Bearer $GITHUB_TOKEN" \
  "https://api.github.com/user/orgs" | jq -r '.[].login')

while IFS= read -r org; do
  [[ -z "$org" ]] && continue
  echo "Fetching repos for org: $org"
  url="https://api.github.com/orgs/$org/repos?per_page=100"
  while [[ -n "$url" ]]; do
    resp=$(curl -sS -D - -H "Authorization: Bearer $GITHUB_TOKEN" "$url")
    body=$(body "$resp")
    if echo "$body" | jq -e '.message' &>/dev/null; then
      echo "API error for org $org: $(echo "$body" | jq -r '.message')" >&2
      break
    fi
    echo "$body" | jq -r '.[].full_name' >> "$TMP_REPOS"
    url=$(next_url "$resp")
  done
done <<< "$orgs"

# Deduplicate and sort
sort -u "$TMP_REPOS" | grep -v '^$' > "$TMP_REPOS.sorted"
mv "$TMP_REPOS.sorted" "$TMP_REPOS"

count=$(wc -l < "$TMP_REPOS" | tr -d ' ')
if [[ "$count" -eq 0 ]]; then
  echo "No repositories found."
  exit 1
fi

echo ""
echo "Found $count repository/repositories:"
echo "----------------------------------------"
cat "$TMP_REPOS"
echo "----------------------------------------"
echo ""
printf 'Use all of them? [y/N]: '
read -r answer

case "${answer:-n}" in
  [yY]|[yY][eE][sS])
    cp "$TMP_REPOS" "$REPOS_FILE"
    echo "Stored $count repos in $REPOS_FILE"
    ;;
  *)
    echo "Aborted. No repos stored."
    exit 0
    ;;
esac