Initial import of script

bin/has_newer_commits.bash

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+fetch_data() {
+
+  url="${1?Error: no URL provided}"
+
+  curl \
+    -s \
+    -H "Accept: application/vnd.github+json" \
+    -H "X-GitHub-Api-Version: 2022-11-28" \
+    -H "Authorization: Bearer ${PAT}" \
+    "$url"
+
+}
+
+compare_dates() {
+  {
+    fetch_data "$(build_url "$a")"
+    fetch_data "$(build_url "$b")"
+  } | jq \
+  --raw-output \
+  --slurp \
+  'if .[0].commit.commit.author.date < .[1].commit.commit.author.date then true else false end'
+}
+
+build_url() {
+  item="${1?Error: no owner/repo@branch passed}"
+
+  repo="${item%%@*}"
+  branch="${item##*@}"
+
+  if [ "$branch" == "$repo" ] ; then
+    repo="$item"
+    branch="main"
+  fi
+
+  echo "https://api.github.com/repos/${repo}/branches/${branch}"
+}
+
+a="${1?Error: two owner/repo@branch values must be provided (0 were)}"
+b="${2?Error: two owner/repo@branch values must be provided (1 was)}"
+
+if [ "$(compare_dates "$a" "$b")" == "true" ] ; then
+  exit 0
+else
+  exit 1
+fi