#!/bin/bash

cd "$(dirname "$(readlink -e "$0")")"

shutdownasap_progress=$(shutdownasap -g || echo 'none')
if [ "${shutdownasap_progress}" != 'none' ]; then
  >&2 printf 'shutdownasap in progress: %s\n' "${shutdownasap_state}"
  exit 1
fi

if [ $# -eq 1 ] \
&& [ -z "${1##*/PKGBUILD}" ] \
&& [ -f "$1" ]; then
  cd "${1%/PKGBUILD}"
  ../addPkgbuildPatch add
  {
    printf '%s-build:latest\n' arch artix
    printf 'arch32-%s-build\n' i486 i686 pentium4
  } \
  | shuf \
  | xargs -rn1 docker run --rm -d -v .:/build
  exit
fi

exec 9> build-all-with-docker.lock
if ! flock -n 9; then
  >&2 echo 'another build-all-with-docker still holds the lock'
  exit 1
fi

if [ "x$1" = 'x--pull' ]; then
  shift
  if ! git pull --ff-only; then
    if ! git pull --rebase \
    && git push; then
      >&2 echo 'cannot push/pull'
      exit 1
    fi
  fi
fi

if [ $# -ne 0 ]; then
  >&2 printf 'too many parameters:'
  >&2 printf ' "%s"' "$@"
  >&2 printf '\n'
  exit 1
fi

if [ -n "$(git status --porcelain)" ]; then
  >&2 echo 'git is not clean'
  exit 1
fi

./bumpPkgrel -a

ids=$(
  parallel "$0" ::: */PKGBUILD \
  | tee /dev/stderr
)

check_and_commit_package_updates() {
  [ -z "$(git status --porcelain)" ] && return
  for pkg in $(
    git status --porcelain \
    | sed '
      s@^.. @@
      s@/[^/]\+$@@
    ' \
    | grep -vxFf <(
      docker ps --format '{{.Mounts}}' --no-trunc \
      | sed 's@^.*/@@'
    )
  ); do
    if ! [ -d "$pkg" ]; then
      >&2 echo "$pkg is not a directory"
      continue
    fi
    cd "$pkg"
    ../addPkgbuildPatch del
    [ -n "$(git status --porcelain -- .)" ] \
    && ../commit-package -a \
    && git push
    cd ..
  done
}

while docker ps --no-trunc | grep -wF "${ids}"; do
  sleep 10
  check_and_commit_package_updates
  date
done

check_and_commit_package_updates