Tirelessly rerun all the failed checks in all open PRs

rerun-pr-checks.sh

#bash

set -euo pipefail

sleep_before_reruns_seconds=$[10 * 60]

while true; do
    slept=false
    for pr_link in $(gh pr list --search 'author:@me' --limit 999 --json 'url' --jq '.[].url'); do
        echo "checking PR ${pr_link}"
        found_failures=false
        for run_id in $(gh pr checks "${pr_link}" --json 'link,state' --jq 'map(. | select(.state == "FAILURE") | .link | sub(".*/runs/(?<id>[0-9]+)/job/[0-9]+$"; "\(.id)") ) | unique | .[]'); do
            found_failures=true
            echo "found run with failed jobs: ${run_id}, will re-run"
            gh run rerun --failed "${run_id}"
        done
        if "${found_failures}"; then
            echo "We have re-run something. To avoid stressing resources, let's take a nap (${sleep_before_reruns_seconds}s)"
            sleep "${sleep_before_reruns_seconds}"
            slept=true
        fi
    done
    if ! "${slept}"; then
        echo "we have looped through all PRs, without rerunning anything, and without sleeping. To avoid stressing github, let's take a nap (${sleep_before_reruns_seconds}s)"
        sleep "${sleep_before_reruns_seconds}"
    fi
done