#!/bin/bash

ISO_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")

# Ensure registry repository is up-to-date
git -C ../registry/ pull upstream master:master --quiet 2>&1

# Checkout master branch in dn42/repository
git -C ../registry/ checkout master --quiet

# Do a git pull beforehand to ensure our repository is up-to-date
git checkout master --quiet
git pull origin master:master --quiet --rebase

# Do the same for sub-repo if exists
if [ -d roa/.git/ ] ; then
  git -C roa/ checkout master --quiet
  if [ $(git -C roa/ remote | grep origin) ] ; then
    git -C roa/ pull origin master:master --quiet --rebase
  fi
fi

# Update with data from registry
php roagen.php
php rfc8416.php

# Ensure sub-repo is created to track roa file udpates 
if [ ! -d roa/ ] ; then mkdir roa ; fi
if [ ! -f roa/.git/config ] ; then
  git -C roa/ init              
  if [ ! -f roa/README.md ; then
    touch roa/README.md
    echo '## roas' | tee roa/README.md ; fi                
  git -C roa/ commit --allow-empty -m "Initial commit"
  git -C roa/ commit README.md -m "Add README.md" ; fi

# Write out last commit to file
echo "## Notes

- These files are Bird 1.x compatible:
  - bird_roa_dn42.conf
  - bird4_roa_dn42.conf
  - bird6_roa_dn42.conf
- These files are Bird 2.x compatible:
  - bird_route_dn42.conf
  - bird4_route_dn42.conf
  - bird6_route_dn42.conf
- These files are [Routinator][2] compatible:
  - export_rfc8416_dn42.json _(SLURM standard, format specified in [RFC 8416][4])_
- These files are [gortr][3] compatible:
  - export_dn42.json

## [Last commit][0] at [dn42 registry][1]

\`\`\`
$(git -C ../registry/ log -n 1 --merges)
\`\`\`

## Misc statistics

- ROAs IPv4:  $(cat roa/bird4_route_dn42.conf | grep -v '^#' | grep -v '^$' | wc -l)
- ROAs IPv6:  $(cat roa/bird6_route_dn42.conf | grep -v '^#' | grep -v '^$' | wc -l)
- ROAs total: $(cat roa/bird_route_dn42.conf  | grep -v '^#' | grep -v '^$' | wc -l)

[0]: https://git.dn42.us/dn42/registry/commit/$(git -C ../registry/ log -n 1 --merges --pretty='format:%H')
[1]: https://git.dn42.us/dn42/registry
[2]: https://github.com/NLnetLabs/routinator
[3]: https://github.com/cloudflare/gortr
[4]: https://tools.ietf.org/html/rfc8416
" > roa/README.md

# Commit latest version of ROA files
git -C roa/ add README.md *.conf *.json
git -C roa/ commit -m "Updated ROA files - $ISO_DATE" --quiet

# Push ROA repository to every remote configured
for REMOTE in $(git -C roa/ remote | egrep -v upstream | paste -sd " " -) ; do git -C roa/ push $REMOTE master:master --quiet ; done

# Push local roagen repository to every remote configured 
for REMOTE in $(git remote | egrep -v upstream | paste -sd " " -) ; do git push $REMOTE master:master --quiet ; done