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path: root/package.inc.sh
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package_init() {
  local pkgname=$1
  local do_update=1

  if [[ $1 = -n ]]; then
    do_update=0
    shift
    pkgname=$1
  fi

  package_find_remote "$pkgname" "$2" || return 1

  (( do_update )) || return 0

  remote_is_tracking "${!2}" "$pkgname" ||
      remote_update_refs "${!2}" "packages/$pkgname"
}

package_find_remote() {
  local pkgname=$1 out=$2

  # fastpath, checks local caches only
  for r in "${ARCH_GIT_REPOS[@]}"; do
    if remote_is_tracking "$r" "$pkgname"; then
      printf -v "$out" %s "$r"
      return 0
    fi
  done

  # slowpath, needs to talk to the remote
  for r in "${ARCH_GIT_REPOS[@]}"; do
    if remote_has_package "$r" "$pkgname"; then
      printf -v "$out" %s "$r"
      return 0
    fi
  done

  log_error 'unknown package: %s' "$pkgname"

  return 1
}

package_log() {
  local pkgname=$1 method=$2 logargs remote

  package_init "$pkgname" remote || return

  case $method in
    shortlog)
      logargs=(--pretty=oneline)
      ;;
    difflog)
      logargs=(-p)
      ;;
    log)
      logargs=()
      ;;
    *)
      die 'internal error: unknown log method: %s' "$method"
      ;;
  esac

  git log "${logargs[@]}" "$remote/packages/$pkgname" -- trunk/
}

package_show_pkgbuild() {
  local pkgname=$1 remote repo subtree blob_id

  if [[ $pkgname = */* ]]; then
    IFS=/ read -r repo pkgname <<<"$pkgname"
  fi

  package_init "$pkgname" remote || return

  if [[ $repo ]]; then
    subtree=repos/$repo-$OPT_ARCH
  else
    subtree=trunk
  fi

  git show "remotes/$remote/packages/$pkgname":"$subtree"/PKGBUILD
}

package_export() {
  local pkgname=$1 remote repo arch
  local mode objtype objid path

  if [[ $pkgname = */* ]]; then
    IFS=/ read -r repo pkgname <<<"$pkgname"
  fi

  package_init "$pkgname" remote || return 1

  if [[ $repo ]]; then
    subtree=repos/$repo-$OPT_ARCH
  else
    subtree=trunk
  fi

  if [[ -z $(git ls-tree "remotes/$remote/packages/$pkgname" "$subtree/") ]]; then
    if [[ $repo ]]; then
      log_error "package '%s' not found in repo '%s-%s'" "$pkgname" "$repo" "$OPT_ARCH"
      return 1
    else
      log_error "package '%s' has no trunk directory!" "$pkgname"
      return 1
    fi
  fi

  if (( ! OPT_FORCE )); then
    mkdir "$startdir/$pkgname" || return 1
  fi

  log_info 'exporting %s:%s' "$pkgname" "$subtree"
  git archive --format=tar "remotes/$remote/packages/$pkgname" "$subtree/" |
      bsdtar -C "$startdir" -s ",^$subtree/,$pkgname/," -xf - "$subtree/"
}

package_checkout() {
  local pkgname=$1 remote

  package_init "$pkgname" remote || return 1

  # create a local tracking branch to clone from. ignore errors because
  # it might already exist.
  git branch --no-track "$remote/packages/$pkgname" "$remote/packages/$pkgname" 2>/dev/null

  git clone "$ASPROOT" --single-branch --branch "$remote/packages/$pkgname" \
    "$startdir/$pkgname"
}

package_get_repos_with_arch() {
  local pkgname=$1 remote=$2
  local path arch repo

  while read path; do
    IFS=/- read _ repo arch <<<"$path"
    printf '%s %s\n' "$repo" "$arch"
  done < <(git ls-tree --name-only "$remote/packages/$pkgname" repos/)
}

package_get_arches() {
  local pkgname=$1 remote arch
  declare -A arches

  package_init "$pkgname" remote || return 1

  while read _ arch; do
    arches["$arch"]=1
  done < <(package_get_repos_with_arch "$pkgname" "$remote")

  printf '%s\n' "${!arches[@]}"
}

package_get_repos() {
  local pkgname=$1 remote repo
  declare -A repos

  package_init "$pkgname" remote || return 1

  while read repo _; do
    repos["$repo"]=1
  done < <(package_get_repos_with_arch "$pkgname" "$remote")

  printf '%s\n' "${!repos[@]}"
}

package_untrack() {
  local pkgname=$1 remote=$2

  if git show-ref -q "refs/heads/$remote/packages/$pkgname"; then
    git branch -D "$remote/packages/$pkgname"
  fi
}