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195 lines
5.2 KiB
195 lines
5.2 KiB
# Copyright 1999-2019 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: cargo.eclass
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# @MAINTAINER:
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# rust@gentoo.org
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# @AUTHOR:
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# Doug Goldstein <cardoe@gentoo.org>
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# @SUPPORTED_EAPIS: 6 7
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# @BLURB: common functions and variables for cargo builds
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if [[ -z ${_CARGO_ECLASS} ]]; then
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_CARGO_ECLASS=1
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# we need this for 'cargo vendor' subcommand and net.offline config knob
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RUST_DEPEND=">=virtual/rust-1.37.0"
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case ${EAPI} in
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6) DEPEND="${RUST_DEPEND}";;
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7) BDEPEND="${RUST_DEPEND}";;
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*) die "EAPI=${EAPI:-0} is not supported" ;;
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esac
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inherit multiprocessing
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EXPORT_FUNCTIONS src_unpack src_compile src_install src_test
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IUSE="${IUSE} debug"
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ECARGO_HOME="${WORKDIR}/cargo_home"
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ECARGO_VENDOR="${ECARGO_HOME}/gentoo"
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# @ECLASS-VARIABLE: CARGO_INSTALL_PATH
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# @DESCRIPTION:
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# Allows overriding the default cwd to run cargo install from
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: ${CARGO_INSTALL_PATH:=.}
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# @FUNCTION: cargo_crate_uris
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# @DESCRIPTION:
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# Generates the URIs to put in SRC_URI to help fetch dependencies.
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cargo_crate_uris() {
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local -r regex='^(.*)-([0-9]+\.[0-9]+\.[0-9]+.*)$'
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local crate
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for crate in "$@"; do
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local name version url
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[[ $crate =~ $regex ]] || die "Could not parse name and version from crate: $crate"
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name="${BASH_REMATCH[1]}"
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version="${BASH_REMATCH[2]}"
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url="https://crates.io/api/v1/crates/${name}/${version}/download -> ${crate}.crate"
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echo "${url}"
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done
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}
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# @FUNCTION: cargo_src_unpack
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# @DESCRIPTION:
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# Unpacks the package and the cargo registry
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cargo_src_unpack() {
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debug-print-function ${FUNCNAME} "$@"
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mkdir -p "${ECARGO_VENDOR}" || die
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mkdir -p "${S}" || die
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local archive shasum pkg
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for archive in ${A}; do
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case "${archive}" in
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*.crate)
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ebegin "Loading ${archive} into Cargo registry"
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tar -xf "${DISTDIR}"/${archive} -C "${ECARGO_VENDOR}/" || die
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# generate sha256sum of the crate itself as cargo needs this
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shasum=$(sha256sum "${DISTDIR}"/${archive} | cut -d ' ' -f 1)
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pkg=$(basename ${archive} .crate)
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cat <<- EOF > ${ECARGO_VENDOR}/${pkg}/.cargo-checksum.json
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{
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"package": "${shasum}",
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"files": {}
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}
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EOF
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# if this is our target package we need it in ${WORKDIR} too
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# to make ${S} (and handle any revisions too)
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if [[ ${P} == ${pkg}* ]]; then
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tar -xf "${DISTDIR}"/${archive} -C "${WORKDIR}" || die
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fi
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eend $?
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;;
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cargo-snapshot*)
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ebegin "Unpacking ${archive}"
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mkdir -p "${S}"/target/snapshot
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tar -xzf "${DISTDIR}"/${archive} -C "${S}"/target/snapshot --strip-components 2 || die
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# cargo's makefile needs this otherwise it will try to
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# download it
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touch "${S}"/target/snapshot/bin/cargo || die
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eend $?
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;;
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*)
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unpack ${archive}
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;;
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esac
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done
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cargo_gen_config
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}
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# @FUNCTION: cargo_live_src_unpack
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# @DESCRIPTION:
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# Runs 'cargo fetch' and vendors downloaded crates for offline use, used in live ebuilds
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cargo_live_src_unpack() {
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debug-print-function ${FUNCNAME} "$@"
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[[ "${PV}" == *9999* ]] || die "${FUNCNAME} only allowed in live/9999 ebuilds"
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[[ "${EBUILD_PHASE}" == unpack ]] || die "${FUNCNAME} only allowed in src_unpack"
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mkdir -p "${S}" || die
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pushd "${S}" > /dev/null || die
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CARGO_HOME="${ECARGO_HOME}" cargo fetch || die
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CARGO_HOME="${ECARGO_HOME}" cargo vendor "${ECARGO_VENDOR}" || die
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popd > /dev/null || die
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cargo_gen_config
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}
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# @FUNCTION: cargo_gen_config
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# @DESCRIPTION:
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# Generate the $CARGO_HOME/config necessary to use our local registry and settings.
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# Cargo can also be configured through environment variables in addition to the TOML syntax below.
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# For each configuration key below of the form foo.bar the environment variable CARGO_FOO_BAR
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# can also be used to define the value.
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# Environment variables will take precedent over TOML configuration,
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# and currently only integer, boolean, and string keys are supported.
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# For example the build.jobs key can also be defined by CARGO_BUILD_JOBS.
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# Or setting CARGO_TERM_VERBOSE=false in make.conf will make build quieter.
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cargo_gen_config() {
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debug-print-function ${FUNCNAME} "$@"
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cat <<- EOF > "${ECARGO_HOME}/config"
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[source.gentoo]
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directory = "${ECARGO_VENDOR}"
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[source.crates-io]
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replace-with = "gentoo"
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local-registry = "/nonexistant"
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[net]
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offline = true
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[build]
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jobs = $(makeopts_jobs)
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[term]
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verbose = true
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EOF
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# honor NOCOLOR setting
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[[ "${NOCOLOR}" = true || "${NOCOLOR}" = yes ]] && echo "color = 'never'" >> "${ECARGO_HOME}/config"
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}
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# @FUNCTION: cargo_src_compile
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# @DESCRIPTION:
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# Build the package using cargo build
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cargo_src_compile() {
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debug-print-function ${FUNCNAME} "$@"
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export CARGO_HOME="${ECARGO_HOME}"
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cargo build $(usex debug "" --release) "$@" \
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|| die "cargo build failed"
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}
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# @FUNCTION: cargo_src_install
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# @DESCRIPTION:
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# Installs the binaries generated by cargo
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cargo_src_install() {
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debug-print-function ${FUNCNAME} "$@"
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cargo install --path ${CARGO_INSTALL_PATH} \
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--root="${ED}/usr" $(usex debug --debug "") "$@" \
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|| die "cargo install failed"
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rm -f "${ED}/usr/.crates.toml"
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rm -f "${ED}/usr/.crates2.json"
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[ -d "${S}/man" ] && doman "${S}/man" || return 0
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}
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# @FUNCTION: cargo_src_test
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# @DESCRIPTION:
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# Test the package using cargo test
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cargo_src_test() {
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debug-print-function ${FUNCNAME} "$@"
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cargo test $(usex debug "" --release) "$@" \
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|| die "cargo test failed"
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}
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fi
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