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feat(iso): persist lb package cache across builds in cache dir

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Saves cache/packages.chroot before wiping BUILD_WORK_DIR and
restores it after, so apt packages are not re-downloaded on every
build. Cache lives in --cache-dir (same place as Go/NVIDIA cache).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Chus
2026-03-28 09:59:55 +03:00
parent de130966f7
commit 23ad7ff534
1 changed files with 11 additions and 0 deletions
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11
iso/builder/build.sh
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@@ -200,9 +200,20 @@ else
fi
echo "=== preparing staged overlay ==="
# Preserve lb package cache across builds so apt packages are not re-downloaded.
LB_PKG_CACHE="${CACHE_ROOT}/lb-packages"
mkdir -p "${LB_PKG_CACHE}"
if [ -d "${BUILD_WORK_DIR}/cache/packages.chroot" ]; then
rsync -a --delete "${BUILD_WORK_DIR}/cache/packages.chroot/" "${LB_PKG_CACHE}/"
fi
rm -rf "${BUILD_WORK_DIR}" "${OVERLAY_STAGE_DIR}"
mkdir -p "${BUILD_WORK_DIR}" "${OVERLAY_STAGE_DIR}"
rsync -a "${BUILDER_DIR}/" "${BUILD_WORK_DIR}/"
# Restore lb package cache
if [ -d "${LB_PKG_CACHE}" ] && [ "$(ls -A "${LB_PKG_CACHE}" 2>/dev/null)" ]; then
mkdir -p "${BUILD_WORK_DIR}/cache/packages.chroot"
rsync -a "${LB_PKG_CACHE}/" "${BUILD_WORK_DIR}/cache/packages.chroot/"
fi
rsync -a "${OVERLAY_DIR}/" "${OVERLAY_STAGE_DIR}/"
rm -f \
"${OVERLAY_STAGE_DIR}/etc/bee-ssh-password-fallback" \