functions

#!/bin/sh

__sm.package.gnu.install()
{
  trace_filter package || set -o xtrace

  (( $# == 0 )) || __sm.package.cli $@

  __sm.package.set.cflags
  __sm.package.set.cpath
  __sm.package.set.cc
  __sm.package.set.ldflags

  if __sm.package.versions.installed | grep -q "${package_version}" && (( force_flag != 1 ))
  then
    log "The ${package_name} ${package_version} package is already installed.
To force it to reinstall, call:\n\tsm ${package_name} package install force\n"
    return 0
  fi

  paths create "${source_path}"

  paths enter "${source_path}"

  if command exists "${package_name//-/_}_dependencies"
  then
    __sm.log.step "${package_name} ${package_version} ~ dependencies"
    "${package_name//-/_}_dependencies"
    __sm.log.step success
  else
    __sm.log.step "${package_name} ${package_version} ~ dependencies"
    __sm.package.dependencies
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_prefetch"
  then
    __sm.log.step "${package_name} ${package_version} ~ prefetch"
      "${package_name//-/_}_prefetch"
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_fetch"
  then
    __sm.log.step "${package_name} ${package_version} ~ fetch"
      "${package_name//-/_}_fetch"
    __sm.log.step success
  else
    __sm.log.step "${package_name} ${package_version} ~ fetch"
    __sm.package.fetch
    __sm.log.step success
  fi

  paths enter "${source_path}/${package_dir}"

  if command exists "${package_name//-/_}_postfetch"
  then
    __sm.log.step "${package_name} ${package_version} ~ postfetch"
    "${package_name//-/_}_postfetch"
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_patch"
  then
    __sm.log.step "${package_name} ${package_version} ~ patch"
    "${package_name//-/_}_patch"
    __sm.log.step success
  else
    __sm.log.step "${package_name} ${package_version} ~ patch"
    __sm.package.patch
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_preconfigure"
  then
    __sm.log.step "${package_name} ${package_version} ~ preconfigure"
    "${package_name//-/_}_preconfigure"
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_configure"
  then
    "${package_name//-/_}_configure"
  else
    __sm.log.step "${package_name} ${package_version} ~ configure"
    __sm.package.configure
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_postconfigure"
  then
    __sm.log.step "${package_name} ${package_version} ~ postconfigure"
    "${package_name//-/_}_postconfigure"
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_build"
  then
    __sm.log.step "${package_name} ${package_version} ~ build"
    "${package_name//-/_}_build"
    __sm.log.step success
  else
    __sm.log.step "${package_name} ${package_version} ~ build"
    __sm.package.gnu.make
    __sm.log.step success
  fi

  if command exists "${package_name//-/_}_preinstall"
  then
    __sm.log.step "${package_name} ${package_version} ~ preinstall"
      "${package_name//-/_}_preinstall"
    __sm.log.step success
  fi

  versionedfs add \
    path "${packages_path}" name "${package_name}" version "${package_version}" \
    source "${install_path}"

  if command exists "${package_name//-/_}_install"
  then
    __sm.log.step "${package_name} ${package_version} ~ install"
    "${package_name//-/_}_install"
    __sm.log.step success
  else
    __sm.log.step "${package_name} ${package_version} ~ install"
    __sm.package.make.install
    __sm.log.step success
  fi

  files link symbolic force \
    from "${source_path}/${package_dir}" \
    to "${install_path}/src"

  if command exists "${package_name//-/_}_postinstall"
  then
    __sm.log.step "${package_name} ${package_version} ~ postinstall"
    "${package_name//-/_}_postinstall"
    __sm.log.step success
  fi

  if ! __sm.string.contains.word '__sm.package.update' "${FUNCNAME[*]}"
  then
    __sm.package.activate.first "${package_name}" "${package_version}"
  fi

  if command exists "${package_name//-/_}_postactivate"
  then
    __sm.log.step "${package_name} ${package_version} ~ postactivate"
    "${package_name//-/_}_postactivate"
    __sm.log.step success
  fi

  __sm.package.setup
}

# helper for gnu package forks, usage: __sm.gnu.tarball.version [file [version]]
__sm.gnu.tarball.version()
{
  [[ -f ${1:-.tarball-version} ]] &&
  grep "${2:-$package_version}" < ${1:-.tarball-version} > /dev/null ||
  echo "${2:-$package_version}" > ${1:-.tarball-version}
}

__sm.package.binary.install()
{
  trace_filter package || set -o xtrace
  NIY "Binary package strategy"
  # TODO: fetch, extract, copy to install path.
}

__sm.package.java.install()
{
  trace_filter package || set -o xtrace
  NIY "Java package strategy"
  # TODO: fetch, extract, copy to install path, setup java launcher.
}

__sm.package.fetch.checksum()
{
  trace_filter package || set -o xtrace
  typeset download_url
  (( $# == 0 )) || __sm.package.cli $@
  true "${package_file:="${package_name}-${package_version}.${archive_format}"}"

  if [[ -z "${package_checksum_url:-}" ]]
  then
    for download_url in ${=package_base_url}
    do
      package_checksum_url="${package_checksum_url:-} ${download_url}/${package_file}.checksum"
    done
  fi

  [[ -n "${package_checksum}" ]] || __sm.config.read "${package_name}" checksum "${package_file}" package_checksum
  [[ -n "${package_checksum}" ]] ||
    for download_url in ${=package_checksum_url}
    do
      if [[ -f "${download_url}" ]]
      then
        __sm.file.copy "${download_url}" "${archives_path}/${package_file}" -f
      else
        # TODO: we can not relay on downloaded checksum, validate with another source ?
        ${curl} -L "${download_url}" -o "${archives_path}/${package_file}.checksum" 2>/dev/null || return 1
      fi

      if [[ -s "${archives_path}/${package_file}.checksum" ]]
      then package_checksum=$(cat "${archives_path}/${package_file}.checksum")
      elif [[ -f "${archives_path}/${package_file}.checksum" ]]
      then rm "${archives_path}/${package_file}.checksum"
      fi

      if (( ${#package_checksum} == 32 ))
      then
        return 0
      else
        package_checksum=""
      fi
    done
}

__sm.package.fetch()
{
  trace_filter package || set -o xtrace

  typeset _entries _url
  typeset -a _args

  (( $# == 0 )) || __sm.package.cli $@
  true "${package_file:="${package_name}-${package_version}.${archive_format}"}"

  if [[ -z "${package_url:-}" ]]
  then
    for _url in ${=package_base_url}
    do
      package_url="${package_url:-} ${_url}/${package_file}"
    done
  fi

  if [[ -n "${scm_type:-}" ]]
  then
    _args+=( "scm_type" "${scm_type}" )
  fi

  __sm.package.fetch.checksum

  if [[ -n "${package_checksum:-}" ]]
  then _args+=( "checksum" "${package_checksum}" )
  fi

  fetch_uris "${package_url}" "${source_path}/${package_dir}" ${_args[@]} || return 1

  [[ -z "${__vcs_failed}" ]] || return 1

  [[ -d "${source_path}/${package_dir}/${package_dir}" ]] || return 0

  mv "${source_path}/${package_dir}/${package_dir}"/* "${source_path}/${package_dir}/"

  rm -rf "${source_path}/${package_dir}/${package_dir}/"
}

__sm.package.gnu.update()
{
  trace_filter package || set -o xtrace
  (( $# == 0 )) || __sm.package.cli $@

  # TODO: check if newer version exists, if so then...
  if __sm.package.versions.installed | grep -q "${package_version}" \
  && [[ "${force_flag}" != "1" ]]
  then
    log "The latest version (${package_version}) of the ${package_name} package is already installed."
  else
    __sm.package.${package_strategy:=gnu}.install \
      ${package_name} ${package_version:-} ${archive_format:-} force
    __sm.package.activate ${package_name} ${package_version}
  fi
}

__sm.package.configure.flag.if.supported()
{
  if
    "$1" --help 2>/dev/null | \grep -- "$2" >/dev/null
  then
    __sm.package.configure.flag "$2" "$3"
  fi
}

__sm.package.configure()
{
  trace_filter package || set -o xtrace
  typeset _command
  typeset -x PKG_CONFIG_PATH PREFIX

  command exists gcc || command exists cc || __sm.log.fail "No C compiler found."

  _command="${configure_command:-./configure}"

  if [[ ! -x "${_command%% *}" ]]
  then
    __sm.log.debug package "Configure command '${_command%% *}' not available."
    return 0
  fi

  __sm.package.configure.flag "--prefix" "${install_path}"
  __sm.package.configure.flag.if.supported "${_command%% *}" "--sysconfdir" "/etc"
  __sm.package.configure.flag.if.supported "${_command%% *}" "--datadir" "${active_path}/share"

  _command="${_command} ${configure_flags[*]}"
  __sm.log.debug package "__sm.package.configure: ${_command}"

  PATH="${active_path}/bin:$PATH"
  PREFIX="${install_base_path}/${package_version}"
  PKG_CONFIG_PATH=${active_path}/lib/pkgconfig

  ${=_command} > configure.log 2>&1 ||
    __sm.package.error \
    "Configuration of ${package_name} ${package_version} failed." \
    "configure.log"
}

__sm.package.gnu.make()
{
  trace_filter package || set -o xtrace

  typeset _command

  if [[ -n ${build_command:-} ]]
  then
    _command="${build_command}"
  else
    if ! __sm.string.contains.word "-j" "${make_flags[*]}"
    then
      make_flags+=( "-j" "$(__sm.os.cpu.count)" )
    fi
    _command="make ${make_flags[@]}"
  fi

  __sm.log.debug package "__sm.package.gnu.make: ${_command}"
  env | grep -E '^C.*=|PATH.*=|FLAGS.*=' | __sm.log.debug package -

  ${=_command} > build.log 2>&1 ||
    __sm.package.error \
    "Compilation of ${package_name} ${package_version} failed! " "$PWD/build.log"
}

__sm.package.make.install()
{
  trace_filter package || set -o xtrace
  typeset _command

  if [[ -n ${install_command:-} ]]
  then
    _command="${install_command}"
  else
    _command="make ${make_install_flags[@]:-install}"
  fi

  ${=_command} > make.install.log 2>&1 ||
    __sm.package.error \
      "Installation of ${package_name} ${package_version} failed! " \
      "$PWD/make.install.log"
}

__sm.package.gnu.activate()
{
  trace_filter package || set -o xtrace
  (( $# == 0 )) || __sm.package.cli $@

  versionedfs activate \
    path "${packages_path}" name "${package_name}" version "${package_version}"

  __sm.package.ldconfig "${package_name}"
  __sm.package.setup "${package_name}"
}

__sm.package.setup()
{
  trace_filter package || set -o xtrace
  typeset _package
  _package="${1:-${package_name}}"

  __sm.package.profile.d "${_package}"

  if  __sm.module.is.loaded "internal/service"
  then
    __sm.service.setup "${_package}"
  fi

  if __sm.module.is.loaded "internal/database"
  then
    __sm.database.setup "${_package}"
  fi
}

__sm.package.gnu.deactivate()
{
  trace_filter package || set -o xtrace

  (( $# == 0 )) || __sm.package.cli $@

  __sm.log.step "${package_name} ${_version:-${package_version}} ~ deactivate"

  versionedfs deactivate path "${packages_path}" name "${package_name}" >/dev/null

  __sm.log.step success

  if ! __sm.string.contains.word '__sm.package.activate' "${FUNCNAME[*]}"
  then
    __sm.package.ldconfig "${_package}"
  fi
}

__sm.package.activate.first()
{
  trace_filter package || set -o xtrace

  typeset _package _version

  _package="${1:-}"
  _version="${2:-}"

  (( $# )) && shift || __sm.log.fail "Package name must be given as first parameter."
  (( $# )) && shift || __sm.log.fail "Package version must be given as second parameter."

  if paths exist "${install_path}"
  then
    __sm.package.activate "${_package}" "${_version}"
  else
    log "'${install_path}' not found; skipping activation."
  fi
}

__sm.package.ldconfig()
{
  trace_filter package || set -o xtrace

  typeset _package _path _files _ldconfig

  _package="${1:-${package_name}}"
  _ldconfig="/sbin/ldconfig"

  if [[ -z "${_package}" ]]
  then
    __sm.log.fail "Package name must be given."
  fi

  #  paths exist "${packages_path}/versions/${_package}/active/lib" ||
  #    return 0 # no lib/ directory for activated package, no need to update ldconfig

  user is root || return 0

  # TODO: Figure out if solaris and freebsd have an analog to this?
  if __sm.os.type.is linux
  then
    if paths exist "/etc/ld.so.conf.d"
    then
      files write \
        string "${active_path}/lib\n" \
        to "/etc/ld.so.conf.d/sm.conf" \
        mode 0444
    fi

    if [[ -d /selinux ]] && command exists restorecon
    then
      restorecon -R "${active_path}/lib" # -v ~ verbose
      restorecon -R "${packages_path}/versions/${package_name}" # -v ~ verbose
    fi

    command exists "${_ldconfig}" || ldconfig="ldconfig"

    __sm.log.step "${package_name} ${package_version} ~ ldconfig"
    "${_ldconfig}" "${active_path}/lib"
    __sm.log.step success

  elif __sm.os.type.is darwin
  then # Cluster Fuck!
    true
    # This should be handled by the profile.d?
    # _files=($(find "${packages_path}/versions/${_package}/active" -mindepth 1 -maxdepth 1 -type d))
    # (( ${#_files[@]} > 0 )) && copy_files to "${packages_path}" "${_files[@]}"
  fi
}

__sm.package.profile.d()
{
  trace_filter package || set -o xtrace

  typeset _package

  _package="${1:-${package_name}}"

  if [[ -z "${_package}" ]]
  then
    __sm.log.fail "Package name must be given."
  fi

  templates exist "profile.d.template" || return 0

  __sm.log.step "Updating shell profile for ${_package}"

  paths create "${profile_d_path}"
  files create "${profile_path}"

  templates install "profile.d" to "${profile_d_path}/${_package}.sh" mode 0755

  __sm.log.step success
}

__sm.package.gnu.uninstall()
{
  trace_filter package || set -o xtrace

  (( $# == 0 )) || __sm.package.cli $@

  if __sm.package.is.active "${package_name}" "${package_version}"
  then # Deactivate the package if active.
    __sm.package.deactivate "${package_name}" "${package_version}"
  fi

  __sm.log.step "${package_name} ${package_version} ~ uninstall"

  paths remove "${install_path}"

  if  __sm.module.is.loaded "internal/service"
  then
    __sm.service.uninstall "${_package}" # Remove any service reminants
  fi

  __sm.log.step success
}

__sm.package.patch()
{
  trace_filter package || set -o xtrace

  typeset _patches _patch _path _paths

  _paths=(
    "${extension_patches_path}"
    "${extension_patches_path}/$(__sm.os.type)"
    "${extension_patches_path}/$(__sm.os.type)/${package_version}"
  )

  for _path in "${_paths[@]}"
  do
    paths exists "${_path}" || continue # No patch path

    _patches=( ${_path}/*.patch ${_path}/*.diff )
    if (( ${#_patches[@]} ))
    then
      __sm.package.patches.apply "${_patches[@]}"
    fi
  done
}

__sm.package.patches.apply()
{
  trace_filter package || set -o xtrace

  typeset _patch _patches

  _patches=("$@")

  (( $# )) && shift || __sm.log.fail "No patches were given."

  for _patch in "${_patches[@]}"
  do
    [[ -f "${_patch}" && -s "${_patch}" ]] || continue
    patch -F 3 -p 1 -N -f < ${_patch} > patch.install.log 2>&1 ||
      __sm.package.error \
        "Patching of ${package_name} ${package_version} with ${_patch} failed! " \
        "$PWD/patch.install.log"
  done
}