Remove all GitHub stars

unstarr.sh

#!/usr/bin/env bash

set -o errexit
set -euo pipefail
[[ "${DEBUG:-}" == 'true' ]] && set -o xtrace
IFS=$'\n\t'

token=$(gh auth token)

# TODO: Check X-OAuth-Scopes repo

# get number of pages
pages=$(curl -I -H "Accept: application/vnd.github.v3+json" -H "Authorization: token ${token}" \
  -s -o /dev/null -w '%header{link}' https://api.github.com/user/starred | grep -oP '(?<=page=)\d+(?=>; rel="last")' || echo "1")

# remove any previous stars.txt
rm -f stars.txt

# get all starred repos
for p in {1..$pages}; do
  curl -H "Accept: application/vnd.github.v3+json" -H "Authorization: token ${token}" \
    -s https://api.github.com/user/starred\?page\=$p |
  jq -r '.[] |.full_name' >> stars.txt;
done

# unstar all starred repos
echo "Removing $(wc -l stars.txt | awk '{print $1}') repos"
while read REPO; do
  printf "."
  curl -H "Accept: application/vnd.github.v3+json" -H "Authorization: token ${token}" \
    -H "X-GitHub-Api-Version:2022-11-28" -s -o /dev/null -X "DELETE" https://api.github.com/user/starred/"${REPO}"
done<stars.txt
echo -e "\nComplete"