commit: bf9a8b7af96bb7161956fc8276d9d07f021bda8a Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Sat May 11 18:53:28 2024 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Fri May 17 06:25:48 2024 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=bf9a8b7a
cargo.eclass: Optimize crate unpacking Unpack crates in parallel using xargs to utilize multicore systems better. Perform checksumming via a single sha256sum invocation. For dev-python/watchfiles, this speeds up unpacking on my machine from 2.6 s to 0.75 s (warm cache). Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> Closes: https://github.com/gentoo/gentoo/pull/36645 Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> eclass/cargo.eclass | 56 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 33 insertions(+), 23 deletions(-) diff --git a/eclass/cargo.eclass b/eclass/cargo.eclass index 0f2da982f60c..a685cd99fb38 100644 --- a/eclass/cargo.eclass +++ b/eclass/cargo.eclass @@ -329,40 +329,50 @@ _cargo_gen_git_config() { cargo_src_unpack() { debug-print-function ${FUNCNAME} "$@" - mkdir -p "${ECARGO_VENDOR}" || die - mkdir -p "${S}" || die + mkdir -p "${ECARGO_VENDOR}" "${S}" || die local archive shasum pkg + local crates=() for archive in ${A}; do case "${archive}" in *.crate) - # when called by pkgdiff-mg, do not unpack crates - [[ ${PKGBUMPING} == ${PVR} ]] && continue - - ebegin "Loading ${archive} into Cargo registry" - tar -xf "${DISTDIR}"/${archive} -C "${ECARGO_VENDOR}/" || die - # generate sha256sum of the crate itself as cargo needs this - shasum=$(sha256sum "${DISTDIR}"/${archive} | cut -d ' ' -f 1) - pkg=$(basename ${archive} .crate) - cat <<- EOF > ${ECARGO_VENDOR}/${pkg}/.cargo-checksum.json - { - "package": "${shasum}", - "files": {} - } - EOF - # if this is our target package we need it in ${WORKDIR} too - # to make ${S} (and handle any revisions too) - if [[ ${P} == ${pkg}* ]]; then - tar -xf "${DISTDIR}"/${archive} -C "${WORKDIR}" || die - fi - eend $? + crates+=( "${archive}" ) ;; *) - unpack ${archive} + unpack "${archive}" ;; esac done + if [[ ${PKGBUMPING} != ${PVR} && ${crates[@]} ]]; then + pushd "${DISTDIR}" >/dev/null || die + + ebegin "Unpacking crates" + printf '%s\0' "${crates[@]}" | + xargs -0 -P "$(makeopts_jobs)" -n 1 -t -- \ + tar -x -C "${ECARGO_VENDOR}" -f + assert + eend $? + + while read -d '' -r shasum archive; do + pkg=${archive%.crate} + cat <<- EOF > ${ECARGO_VENDOR}/${pkg}/.cargo-checksum.json || die + { + "package": "${shasum}", + "files": {} + } + EOF + + # if this is our target package we need it in ${WORKDIR} too + # to make ${S} (and handle any revisions too) + if [[ ${P} == ${pkg}* ]]; then + tar -xf "${archive}" -C "${WORKDIR}" || die + fi + done < <(sha256sum -z "${crates[@]}" || die) + + popd >/dev/null || die + fi + cargo_gen_config }
