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build_toolchains: add provenance metadata files to root overlay

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Catalyst runs builds with copies of the portage/coreos overlays in a
chroot, which prevents us from accessing the git metadata necessary to
create provenance information. Copy some files over into the
root_overlay used by the toolchains catalyst build so that provenance
can be correctly captured.
This commit is contained in:
Jeremi Piotrowski 2022-07-13 15:43:15 +02:00
parent 95c5d94837
commit 0eb44ea280
1 changed files with 19 additions and 0 deletions
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19
build_toolchains
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@ -26,6 +26,24 @@ stage4/root_overlay: ${ROOT_OVERLAY}
EOF
catalyst_stage_default
}
create_provenance_overlay() {
local root_overlay="$1"
while read f; do
d="${f%/*}"
mkdir -p "${root_overlay}${d}/"
cp "${f}" "${root_overlay}${d}/"
done < <(find /mnt/host/source/src/scripts -name HEAD)
local scripts_git=/mnt/host/source/src/scripts/.git
# `git rev-parse` fails due to the safe.directory setting in SDK container.
# Open-code the ref lookup
read scripts_hash <"${scripts_git}/HEAD"
if [[ "${scripts_hash}" == "ref:"* ]]; then
read scripts_hash<"${scripts_git}/${scripts_hash#ref: }"
echo "${scripts_hash}" >"${root_overlay}${scripts_git}/HEAD"
fi
mkdir -p "${root_overlay}/mnt/host/source/.repo/manifests"
cp "${REPO_MANIFESTS_DIR}/version.txt" "${root_overlay}/mnt/host/source/.repo/manifests"
}
catalyst_init "$@"
check_gsutil_opts
@ -35,6 +53,7 @@ ROOT_OVERLAY="${TEMPDIR}/stage4-${ARCH}-$FLAGS_version-overlay"
# toolchain_util.sh is required by catalyst_toolchains.sh
mkdir -p "${ROOT_OVERLAY}/tmp"
cp "${BUILD_LIBRARY_DIR}/toolchain_util.sh" "${ROOT_OVERLAY}/tmp"
create_provenance_overlay "${ROOT_OVERLAY}"
catalyst_build