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extension: kernel-version-toolchain for compiler in artifact version

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Add opt-in extension that includes gcc/clang major.minor version in the
kernel artifact version string for cache invalidation when the toolchain
changes. Enable with ENABLE_EXTENSIONS="kernel-version-toolchain".

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Igor Velkov 2026-01-28 04:11:26 +02:00 committed by tabrisnet
parent baa0fdb2dc
commit 9e251e885f
2 changed files with 36 additions and 1 deletions
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35
extensions/kernel-version-toolchain.sh Normal file
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@ -0,0 +1,35 @@
# Add compiler (gcc/clang) identifier to kernel artifact version string.
# This ensures cache invalidation when the toolchain changes.
# Enable with: ENABLE_EXTENSIONS="kernel-version-toolchain"
function artifact_kernel_version_parts__add_toolchain() {
# Determine compiler binary
declare kernel_compiler_bin="${KERNEL_COMPILER}gcc"
if [[ "${KERNEL_COMPILER}" == "clang" ]]; then
kernel_compiler_bin="clang"
fi
# Get compiler version (major.minor only)
declare toolchain_id="unknown"
if command -v "${kernel_compiler_bin}" &> /dev/null; then
declare full_version
full_version="$(${kernel_compiler_bin} -dumpfullversion -dumpversion 2>/dev/null || echo "")"
if [[ -n "${full_version}" ]]; then
# Extract major.minor, drop patch version
declare short_version
short_version="$(echo "${full_version}" | cut -d'.' -f1-2)"
# Build identifier: gcc13.3 or clang18.1
if [[ "${KERNEL_COMPILER}" == "clang" ]]; then
toolchain_id="clang${short_version}"
else
toolchain_id="gcc${short_version}"
fi
fi
fi
display_alert "Extension: ${EXTENSION}: Adding toolchain to kernel version" "${toolchain_id}" "debug"
# Add to version parts
artifact_version_parts["_T"]="${toolchain_id}"
artifact_version_part_order+=("0085-_T")
}

2
lib/functions/artifacts/artifact-kernel.sh
View File

@ -131,7 +131,7 @@ function artifact_kernel_prepare_version() {
# tac reverses order so last becomes first, then sort -uk keeps first occurrence of each key.
declare -a kernel_config_modifying_hashes_reduced=()
mapfile -t kernel_config_modifying_hashes_reduced < <(
printf '%s\n' "${kernel_config_modifying_hashes[@]}" | tac | LC_ALL=C sort -t '=' -uk 1,1
printf '%s\n' "${kernel_config_modifying_hashes[@]}" | tac | LC_ALL=C sort -s -t '=' -uk 1,1
)
kernel_config_modification_hash="$(printf '%s\n' "${kernel_config_modifying_hashes_reduced[@]}" | sha256sum | cut -d' ' -f1)"
kernel_config_modification_hash="${kernel_config_modification_hash:0:16}" # "long hash"