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path: root/bin/seed-build-list
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#!/bin/sh

# seed the build list from differences between an x86_64 and our master mirror

. "${0%/*}/../conf/default.conf"

if [ $# -ne 1 ]; then
  >&2 echo 'usage: seed-build-list http://x86_64.mirror.archlinux.org/'
  exit 1
fi

repos='core community extra gnome-unstable kde-unstable'

tmp_dir="$(mktemp -d)"
trap "rm -rf --one-file-system '${tmp_dir}'" EXIT

for repo in ${repo_names}; do
  if [ "${repo_names}" = 'archlinux32' ]; then
    continue
  fi
  eval 'repo_path="${repo_paths__'"${repo}"'}"'
  git -C "${repo_path}" archive origin/master | \
    tar -t | \
    grep '^[^/]\+/repos/[^/]\+/PKGBUILD$' | \
    grep -v -- '-i686/PKGBUILD$' | \
    grep -v '\(staging\|testing\)$' | \
    sed '
      s|^\([^/]\+\)/repos/\([^/]\+\)-[^/-]\+/PKGBUILD$|\1 \2|
    '
done | \
  sort -k1,1 > \
  "${tmp_dir}/known_packages"

(
  # theirs
  for repo in ${repos}; do
    curl -sS "$1/${repo}/os/x86_64/${repo}.db.tar.gz" | \
      tar -tz
  done | \
    grep '/$' | \
    sed '
      s|/$||
      s|^\(.*\)-\([^-]\+-[^-]\+\)|theirs \1-\2 \2 \1|
    '

  # ours
  for repo in $(ls_master_mirror 'i686'); do
    ls_master_mirror "i686/$repo" | \
      grep '\.pkg\.tar\.xz$' | \
      sed 's|-[^-]\+$||'
  done | \
    sed '
      s|^\(.*\)-\([^-]\+-[^-]\+\)|ours \1-\2 \2 \1|
    '
  ) | \
  sort -k4,4 -k3Vr,3 -k1,1 | \
  uniq -f3 | \
  grep '^theirs ' | \
  awk '{print $4}' | \
  sort -k1,1 > \
  "${tmp_dir}/delta_packages"

join -j1 "${tmp_dir}/delta_packages" "${tmp_dir}/known_packages" > \
  "${tmp_dir}/append_packages"

(
  awk '{print $1}' "${tmp_dir}/append_packages"
  cat "${tmp_dir}/delta_packages"
) | \
  sort | \
  uniq -u | \
  sponge "${tmp_dir}/delta_packages"

while read -r pkg; do
  success=false
  for arch in x86_64 any; do
    pkgbase="$(
      curl -sS "https://www.archlinux.org/packages/community/x86_64/${pkg}/" | \
        sed -n '
          /Base Package:/{
            :a
            N
            s|</tr>.*$||
            Ta
            p
          }
        ' | \
        tr '<>' '\n' | \
        grep '^a href="' | \
        sed '
          s|^a href="||
          s|".*||
          s|/$||
          s|^.*/||
        '
    )"
    if [ -n "${pkgbase}" ]; then
      echo "${pkgbase}" >> \
        "${tmp_dir}/delta_pkgbases"
      success=true
      break
    fi
  done
  if ! ${sucess}; then
    echo "${pkg}"
  fi
done < \
  "${tmp_dir}/delta_packages" | \
  sponge "${tmp_dir}/delta_packages"

sort -u "${tmp_dir}/delta_pkgbases" | \
  sponge "${tmp_dir}/delta_pkgbases"

join -j1 "${tmp_dir}/delta_pkgbases" "${tmp_dir}/known_packages" >> \
  "${tmp_dir}/append_packages"

sort -u "${tmp_dir}/append_packages" | \
  sponge "${tmp_dir}/append_packages"

rm "${tmp_dir}/delta_pkgbases"

if [ -s "${tmp_dir}/delta_packages" ]; then
  echo 'There are still packages newer for x86_64 which I cannot identify :-/'
  exit 2
fi

while read -r pkg repo; do
  git_repo="$(find_git_repository_to_package_repository "${repo}")"
  printf '%s %s %s %s\n' \
    "${pkg}" \
    "$(cat "${work_dir}/${git_repo}.revision")" \
    "$(cat "${work_dir}/archlinux32.revision")" \
    "${repo}"
done < \
  "${tmp_dir}/append_packages" | \
  awk '{print "append " $1 " " $2 " " $3 " " $4 " " $1}' > \
  "${tmp_dir}/build-list.append"

awk '{print "old " $1 " " $2 " " $3 " " $4 " " $1}' "${work_dir}/build-list" > \
  "${tmp_dir}/build-list.old"

cat "${tmp_dir}/build-list.append" "${tmp_dir}/build-list.old" | \
  sort -k6,6 | \
  uniq -uf5 | \
  grep '^append ' | \
  awk '{print $2 " " $3 " " $4 " " $5}' > \
  "${work_dir}/build-list.new"