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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit bash-completion-r1 rust-toolchain toolchain-funcs multilib-minimal
MY_P="rust-${PV}"
DESCRIPTION="Systems programming language from Mozilla"
HOMEPAGE="https://www.rust-lang.org/"
SRC_URI="$(rust_all_arch_uris ${MY_P})"
LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
SLOT="stable"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
IUSE="clippy cpu_flags_x86_sse2 doc rls rustfmt"
DEPEND=""
RDEPEND=">=app-eselect/eselect-rust-20190311"
REQUIRED_USE="x86? ( cpu_flags_x86_sse2 )"
QA_PREBUILT="
opt/${P}/bin/.*
opt/${P}/lib/.*.so
opt/${P}/libexec/.*
opt/${P}/lib/rustlib/.*/bin/.*
opt/${P}/lib/rustlib/.*/lib/.*
"
pkg_pretend() {
if [[ "$(tc-is-softfloat)" != "no" ]] && [[ ${CHOST} == armv7* ]]; then
die "${CHOST} is not supported by upstream Rust. You must use a hard float version."
fi
}
src_unpack() {
default
mv "${WORKDIR}/${MY_P}-$(rust_abi)" "${S}" || die
}
multilib_src_install() {
if multilib_is_native_abi; then
# start native abi install
pushd "${S}" >/dev/null || die
local analysis std
analysis="$(grep 'analysis' ./components)"
std="$(grep 'std' ./components)"
local components="rustc,cargo,${std}"
use doc && components="${components},rust-docs"
use clippy && components="${components},clippy-preview"
use rls && components="${components},rls-preview,${analysis}"
use rustfmt && components="${components},rustfmt-preview"
./install.sh \
--components="${components}" \
--disable-verify \
--prefix="${ED}/opt/${P}" \
--mandir="${ED}/opt/${P}/man" \
--disable-ldconfig \
|| die
local symlinks=(
cargo
rustc
rustdoc
rust-gdb
rust-gdbgui
rust-lldb
)
use clippy && symlinks+=( clippy-driver cargo-clippy )
use rls && symlinks+=( rls )
use rustfmt && symlinks+=( rustfmt cargo-fmt )
einfo "installing eselect-rust symlinks and paths"
local i
for i in "${symlinks[@]}"; do
# we need realpath on /usr/bin/* symlink return version-appended binary path.
# so /usr/bin/rustc should point to /opt/rust-bin-<ver>/bin/rustc-<ver>
local ver_i="${i}-bin-${PV}"
ln -v "${ED}/opt/${P}/bin/${i}" "${ED}/opt/${P}/bin/${ver_i}"
dosym "../../opt/${P}/bin/${ver_i}" "/usr/bin/${ver_i}"
done
# symlinks to switch components to active rust in eselect
dosym "../../../opt/${P}/lib" "/usr/lib/rust/lib-bin-${PV}"
dosym "../../../opt/${P}/man" "/usr/lib/rust/man-bin-${PV}"
dosym "../../opt/${P}/lib/rustlib" "/usr/lib/rustlib-bin-${PV}"
dosym "../../../opt/${P}/share/doc/rust" "/usr/share/doc/${P}"
# musl logic can be improved a bit, but fine as is for now
cat <<-_EOF_ > "${T}/50${P}"
LDPATH="${EPREFIX}/usr/lib/rust/lib"
MANPATH="${EPREFIX}/usr/lib/rust/man"
$(use amd64 && usex elibc_musl 'CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_RUSTFLAGS="-C target-feature=-crt-static"' '')
$(use arm64 && usex elibc_musl 'CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_RUSTFLAGS="-C target-feature=-crt-static"' '')
_EOF_
doenvd "${T}/50${P}"
# note: eselect-rust adds EROOT to all paths below
cat <<-_EOF_ > "${T}/provider-${P}"
/usr/bin/cargo
/usr/bin/rustdoc
/usr/bin/rust-gdb
/usr/bin/rust-gdbgui
/usr/bin/rust-lldb
/usr/lib/rustlib
/usr/lib/rust/lib
/usr/lib/rust/man
/usr/share/doc/rust
_EOF_
if use clippy; then
echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
fi
if use rls; then
echo /usr/bin/rls >> "${T}/provider-${P}"
fi
if use rustfmt; then
echo /usr/bin/rustfmt >> "${T}/provider-${P}"
echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
fi
insinto /etc/env.d/rust
doins "${T}/provider-${P}"
popd >/dev/null || die
#end native abi install
else
local rust_target
rust_target="$(rust_abi $(get_abi_CHOST ${v##*.}))"
dodir "/opt/${P}/lib/rustlib"
cp -vr "${WORKDIR}/rust-${PV}-${rust_target}/rust-std-${rust_target}/lib/rustlib/${rust_target}"\
"${ED}/opt/${P}/lib/rustlib" || die
fi
# BUG: installs x86_64 binary on other arches
rm -f "${ED}/opt/${P}/lib/rustlib/"*/bin/rust-llvm-dwp || die
}
pkg_postinst() {
eselect rust update
elog "Rust installs a helper script for calling GDB now,"
elog "for your convenience it is installed under /usr/bin/rust-gdb-bin-${PV},"
if has_version app-editors/emacs; then
elog "install app-emacs/rust-mode to get emacs support for rust."
fi
if has_version app-editors/gvim || has_version app-editors/vim; then
elog "install app-vim/rust-vim to get vim support for rust."
fi
}
pkg_postrm() {
eselect rust cleanup
}
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