#!/bin/bash

# I initially was using these
# https://github.com/cloudalchemy/ansible-prometheus
# https://github.com/cloudalchemy/ansible-alertmanager
# https://github.com/cloudalchemy/ansible-node-exporter
# https://github.com/cloudalchemy/ansible-grafana

# As of trisquel 11, get upstream prom because it has the react ui,
# which has localtime, and general better usability. alertmanager,
# changelog seems to show good changes and surely things will just work
# better with a matching prometheus.

if [[ -s ~/.bashrc ]];then . ~/.bashrc;fi

#rsync --delete consoles console_libraries /etc/prometheus


while read -r prog tool; do
  cd /a/opt/${prog}dl
  url=$(curl -s https://api.github.com/repos/prometheus/$prog/releases/latest | jq -r '.assets[].browser_download_url | match(".*linux-amd64.tar.gz$").string')
  f=${url##*/}
  if [[ -e $f ]]; then
    timestamp=$(stat -c %Y $f)
  else
    timestamp=0
  fi
  m wget -nv -N $url
  new_timestamp=$(stat -c %Y $f)
  if [[ $timestamp != $new_timestamp || ! -e /usr/local/bin/$prog ]]; then
    ngset
    to_rm=( !($f) )
    ngreset
    if (( ${#to_rm[@]} )); then
      rm -rf ${to_rm[@]}
    fi
    m ex $f
    dir=${f%.tar.gz}
    m sudo install $dir/$prog $dir/$tool /usr/local/bin
    m sudo systemctl restart $prog
  fi
done <<'EOF'
prometheus promtool
alertmanager amtool
EOF