eclass/cargo.eclass

   1 # Copyright 1999-2016 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3 # $Id$
   4
   5 # @ECLASS: cargo.eclass
   6 # @MAINTAINER:
   7 # rust@gentoo.org
   8 # @AUTHOR:
   9 # Doug Goldstein <cardoe@gentoo.org>
  10 # @BLURB: common functions and variables for cargo builds
  11
  12 if [[ -z ${_CARGO_ECLASS} ]]; then
  13 _CARGO_ECLASS=1
  14
  15 case ${EAPI} in
  16         6) : ;;
  17         *) die "EAPI=${EAPI:-0} is not supported" ;;
  18 esac
  19
  20 EXPORT_FUNCTIONS src_unpack
  21
  22 ECARGO_HOME="${WORKDIR}/cargo_home"
  23 ECARGO_REPO="github.com-88ac128001ac3a9a"
  24 ECARGO_INDEX="${ECARGO_HOME}/registry/index/${ECARGO_REPO}"
  25 ECARGO_SRC="${ECARGO_HOME}/registry/src/${ECARGO_REPO}"
  26 ECARGO_CACHE="${ECARGO_HOME}/registry/cache/${ECARGO_REPO}"
  27
  28 # @FUNCTION: cargo_crate_uris
  29 # @DESCRIPTION:
  30 # Generates the URIs to put in SRC_URI to help fetch dependencies.
  31 cargo_crate_uris() {
  32         for crate in $*; do
  33                 local name version url
  34                 name="${crate%-*}"
  35                 version="${crate##*-}"
  36                 url="https://crates.io/api/v1/crates/${name}/${version}/download -> ${crate}.crate"
  37                 echo $url
  38         done
  39 }
  40
  41 # @FUNCTION: cargo_src_unpack
  42 # @DESCRIPTION:
  43 # Unpacks the package and the cargo registry
  44 cargo_src_unpack() {
  45         debug-print-function ${FUNCNAME} "$@"
  46
  47         mkdir -p "${ECARGO_INDEX}" || die
  48         mkdir -p "${ECARGO_CACHE}" || die
  49         mkdir -p "${ECARGO_SRC}" || die
  50         mkdir -p "${S}" || die
  51
  52         local archive
  53         for archive in ${A}; do
  54                 case "${archive}" in
  55                         *.crate)
  56                                 ebegin "Unpacking ${archive}"
  57                                 cp "${DISTDIR}"/${archive} "${ECARGO_CACHE}/" || die
  58                                 tar -xf "${DISTDIR}"/${archive} -C "${ECARGO_SRC}/" || die
  59                                 eend $?
  60                                 ;;
  61                         cargo-snapshot*)
  62                                 ebegin "Unpacking ${archive}"
  63                                 mkdir -p "${S}"/target/snapshot
  64                                 tar -xzf "${DISTDIR}"/${archive} -C "${S}"/target/snapshot --strip-components 2 || die
  65                                 # cargo's makefile needs this otherwise it will try to
  66                                 # download it
  67                                 touch "${S}"/target/snapshot/bin/cargo || die
  68                                 eend $?
  69                                 ;;
  70                         cargo-registry*)
  71                                 ebegin "Unpacking ${archive}"
  72                                 tar -xzf "${DISTDIR}"/${archive} -C "${ECARGO_INDEX}" --strip-components 1 || die
  73                                 # prevent cargo from attempting to download this again
  74                                 touch "${ECARGO_INDEX}"/.cargo-index-lock || die
  75                                 eend $?
  76                                 ;;
  77                         *)
  78                                 unpack ${archive}
  79                                 ;;
  80                 esac
  81         done
  82 }
  83
  84
  85 fi