archbuilder/lib/buildah.inc.sh

#!/bin/bash

_BUILDAH_CONT=""

_BUILDAH_BASE_IMAGE="archlinux"
_BUILDAH_BASE_PATH="/home/archbuilder"
_BUILDAH_MKPKG_PATH="${_BUILDAH_BASE_PATH}/mkpgs"
_BUILDAH_PKGDEST_PATH="${_BUILDAH_BASE_PATH}/pkgdest"
_BUILDAH_CACHE_REPO_NAME="archbuilder_cache_repo"
_BUILDAH_CACHE_REPO_PATH="${_BUILDAH_BASE_PATH}/crepo"
_BUILDAH_CACHE_REPO="${_BUILDAH_CACHE_REPO_PATH}/${_BUILDAH_CACHE_REPO_NAME}.db.tar.gz"
_BUILDAH_MOUNTS=()

_BUILDAH_PARAMS=""
_BUILDAH_MAKEPKG_ENV=""
_BUILDAH_MAKEPKG_FLAGS="" # always noconfirm to avoid hanging

function buildah_exists() {
  log_debug "Checking if buildah image '${1}' exists"

  if buildah inspect "${1}" >/dev/null 2>&1; then
    log_debug "Buildah image '${1}' exists"
    return 0
  fi

  log_debug "Buildah image '${1}' does not exist"
  return 1
}

function buildah_prepare_params() {
  _BUILDAH_PARAMS="${_BUILDAH_PARAMS} -t -v ${ARCHBUILDER_CACHE_REPO}:${_BUILDAH_CACHE_REPO_PATH}:rw,U"

  # adding working directory to container
  # TODO: param -> req for aurutils
  _BUILDAH_PARAMS="${_BUILDAH_PARAMS} -v $(pwd):${_BUILDAH_MKPKG_PATH}:rw,U"

  test_null "ARCHBUILDER_INTERACTIVE" "${ARCHBUILDER_INTERACTIVE}" && {
    _BUILDAH_MAKEPKG_FLAGS="--noconfirm"
  }
  log_info "Preparing makepkg environment"
  test_null "PKGDEST" "${PKGDEST}" || {
    _BUILDAH_PARAMS="${_BUILDAH_PARAMS} -v ${PKGDEST}:${_BUILDAH_PKGDEST_PATH}:rw,U"
    _BUILDAH_MAKEPKG_ENV="${_BUILDAH_MAKEPKG_ENV} PKGDEST=${_BUILDAH_PKGDEST_PATH}"
  }

  log_debug "Final _BUILDAH_PARAMS '${_BUILDAH_PARAMS}'"
}

function buildah_exit() {
  # fix permissions in any case
  log_info "Cleaning up buildah stuff"
  test_null "_BUILDAH_CONT" "${_BUILDAH_CONT}" || {
    exec_cmd buildah run ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" bash -c "exit 0"

    test_null "_FLAG_KEEP" "${_FLAG_KEEP}" && {
      log_info "Deleting working container '${_BUILDAH_CONT}'"
      exec_cmd buildah rm "${_BUILDAH_CONT}"
    }
    unset _BUILDAH_CONT
  }
}

function buildah_create() {
  # checking if base image is existing
  buildah_exists "${_BUILDAH_BASE_IMAGE}" || {
    log_info "Trying to fetch base image '${_BUILDAH_BASE_IMAGE}'"
    exec_cmd buildah pull "${_BUILDAH_BASE_IMAGE}"
  }

  test_null "_ACT_CREATE_IMAGE" "${_ACT_CREATE_IMAGE}" &&
    return 0

  log_info "Creating working container '${ARCHBUILDER_IMAGE_NAME}' from '${_BUILDAH_BASE_IMAGE}'"
  _BUILDAH_CONT=$(buildah from --name "${ARCHBUILDER_IMAGE_NAME}" "${_BUILDAH_BASE_IMAGE}")

  log_info "Updating working container '${ARCHBUILDER_IMAGE_NAME}'"
  exec_cmd buildah run "${_BUILDAH_CONT}" pacman --noconfirm -Syu

  log_info "Installing devel packages"
  exec_cmd buildah run "${_BUILDAH_CONT}" pacman --noconfirm -S base-devel sudo vim git

  log_info "Creating user '${_OPT_CON_BUILD_USER}'"
  exec_cmd buildah run "${_BUILDAH_CONT}" useradd -m -s /bin/bash -U -u "${ARCHBUILDER_UID}" "${_OPT_CON_BUILD_USER}"

  log_info "Setting up sudo for user '${_OPT_CON_BUILD_USER}'"
  exec_cmd buildah run "${_BUILDAH_CONT}" bash -c "echo '${_OPT_CON_BUILD_USER} ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/${_OPT_CON_BUILD_USER}"

  log_info "Creating container folder '${_BUILDAH_MKPKG_PATH}'"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" "${_BUILDAH_CONT}" mkdir "${_BUILDAH_MKPKG_PATH}"

  log_info "Creating container folder '${_BUILDAH_PKGDEST_PATH}'"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" "${_BUILDAH_CONT}" mkdir "${_BUILDAH_PKGDEST_PATH}"

  log_info "Creating container folder '${_BUILDAH_CACHE_REPO_PATH}'"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" "${_BUILDAH_CONT}" mkdir "${_BUILDAH_CACHE_REPO_PATH}"

  log_info "Adding repository '${_BUILDAH_CACHE_REPO} 'to container"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" repo-add "${_BUILDAH_CACHE_REPO}"
  exec_cmd buildah run "${_BUILDAH_CONT}" bash -c "echo -e \"\n\" >> /etc/pacman.conf"
  exec_cmd buildah run "${_BUILDAH_CONT}" bash -c "echo -e \"[${_BUILDAH_CACHE_REPO_NAME}]\" >> /etc/pacman.conf"
  exec_cmd buildah run "${_BUILDAH_CONT}" bash -c "echo -e \"SigLevel = Optional TrustAll\" >> /etc/pacman.conf"
  exec_cmd buildah run "${_BUILDAH_CONT}" bash -c "echo -e \"Server = file://${_BUILDAH_CACHE_REPO_PATH}\" >> /etc/pacman.conf"

  log_info "Copying host makepkg.conf to container"
  exec_cmd buildah copy --chown root:root "${_BUILDAH_CONT}" "/etc/makepkg.conf" "/etc/makepkg.conf"

  log_info "Finalizing image '${ARCHBUILDER_IMAGE_NAME}'"
  exec_cmd buildah commit "${_BUILDAH_CONT}" "${ARCHBUILDER_IMAGE_NAME}"

  buildah_exit
}

function buildah_update() {
  buildah_exists "${ARCHBUILDER_IMAGE_NAME}" ||
    exit_error "Build image '${ARCHBUILDER_IMAGE_NAME}' does not exist" 1

  log_info "Creating working container '${ARCHBUILDER_IMAGE_NAME}' from '${ARCHBUILDER_IMAGE_NAME}'"
  _BUILDAH_CONT=$(buildah from --name "${ARCHBUILDER_IMAGE_NAME}" "${ARCHBUILDER_IMAGE_NAME}")

  log_info "Copying host makepkg.conf to container"
  exec_cmd buildah copy --chown root:root "${_BUILDAH_CONT}" "/etc/makepkg.conf" "/etc/makepkg.conf"

  log_info "Updating container system"
  exec_cmd buildah run --user ${_OPT_CON_BUILD_USER} ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" sudo pacman --noconfirm -Syu

  log_info "Finalizing image '${ARCHBUILDER_IMAGE_NAME}'"
  buildah commit "${_BUILDAH_CONT}" "${ARCHBUILDER_IMAGE_NAME}"

  buildah_exit
}

function buildah_prepare_build() {
  buildah_exists "${ARCHBUILDER_IMAGE_NAME}" ||
    exit_error "Build image '${ARCHBUILDER_IMAGE_NAME}' does not exist" 1

  log_info "Creating working container '${ARCHBUILDER_IMAGE_NAME}' from '${ARCHBUILDER_IMAGE_NAME}'"
  _BUILDAH_CONT=$(buildah from --name "${ARCHBUILDER_IMAGE_NAME}" "${ARCHBUILDER_IMAGE_NAME}")

  log_info "Copying host makepkg.conf to container"
  exec_cmd buildah copy --chown root:root "${_BUILDAH_CONT}" "/etc/makepkg.conf" "/etc/makepkg.conf"

  log_info "Updating container system"
  exec_cmd buildah run --user ${_OPT_CON_BUILD_USER} ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" sudo pacman --noconfirm -Syu

  for k in "${_OPT_KEYS[@]}"; do
    exec_cmd buildah run --user ${_OPT_CON_BUILD_USER} ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" gpg --receive-keys "${k}"
  done
}

function buildah_build() {
  buildah_prepare_build

  arrExt=$(grep PKGEXT /etc/makepkg.conf)
  arrExt=(${arrExt//=/ })
  ext=$(echo "${arrExt[1]}" | cut -d "'" -f 2)

  log_debug "Running makepkg"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" \
    bash -c "cd ${_BUILDAH_MKPKG_PATH} && ${_BUILDAH_MAKEPKG_ENV} makepkg ${_BUILDAH_MAKEPKG_FLAGS} ${_OPT_CON_COPTIONS}"

  log_debug "Copying to cache repo"
  test_null "PKGDEST" "${PKGDEST}" && {
    exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" bash -c "cp ${_BUILDAH_MKPKG_PATH}/*${ext} ${_BUILDAH_CACHE_REPO_PATH}"
  } || {
    exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" bash -c "cp ${_BUILDAH_PKGDEST_PATH}/*${ext} ${_BUILDAH_CACHE_REPO_PATH}"
  }

  log_debug "Updating cache repo"
  exec_cmd buildah run --user "${_OPT_CON_BUILD_USER}" ${_BUILDAH_PARAMS} "${_BUILDAH_CONT}" bash -c "repo-add -n ${_BUILDAH_CACHE_REPO} ${_BUILDAH_CACHE_REPO_PATH}/*${ext}"

  buildah_exit
}