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# Copyright 1999-2025 Gentoo Authors
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# Copyright 1999-2026 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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inherit git-r3
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EGIT_REPO_URI="https://github.com/Zygo/bees.git"
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else
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SRC_URI="https://github.com/Zygo/bees/archive/v${PV}.tar.gz -> ${P}.tar.gz"
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MY_PV=${PV/_/-}
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MY_P=${P/_/-}
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S=${WORKDIR}/${MY_P}
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SRC_URI="https://github.com/Zygo/bees/archive/v${MY_PV}.tar.gz -> ${MY_P}.tar.gz"
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KEYWORDS="amd64 ~arm64"
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fi
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ERROR_BTRFS_FS="CONFIG_BTRFS_FS: bees does currently only work with btrfs"
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PATCHES=(
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"${FILESDIR}/0001-context-demote-abandoned-toxic-match-to-debug-log-le.patch"
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"${FILESDIR}/0002-HACK-crucible-Work-around-kernel-memory-fragmentatio_v2.patch"
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"${FILESDIR}/${PN}-0.11-glibc2.43.patch"
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)
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pkg_pretend() {
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if [[ ${MERGE_TYPE} != buildonly ]]; then
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if kernel_is -lt 4 11; then
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ewarn "With kernel versions below 4.11, bees may severely degrade system performance"
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ewarn "and responsiveness. Especially, the kernel may deadlock while bees is"
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ewarn "running, it's recommended to run at least kernel 4.11."
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ewarn
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elif kernel_is -lt 4 14 29; then
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ewarn "With kernel versions below 4.14.29, bees may generate a lot of bogus WARN_ON()"
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ewarn "messages in the kernel log. These messages can be ignored and this is fixed"
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ewarn "with more recent kernels:"
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ewarn "# WARNING: CPU: 3 PID: 18172 at fs/btrfs/backref.c:1391 find_parent_nodes+0xc41/0x14e0"
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ewarn
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elif kernel_is -lt 5 7 0; then
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if kernel_is -lt 5 7; then
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ewarn "With kernel versions below 5.4.96 and 5.7, the kernel may hold file system"
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ewarn "locks for a long time while at the same time CPU usage increases when bees is"
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ewarn "operating. bees tries to avoid this behavior by excluding very common extents"
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ewarn "from deduplication. This has only a minimal impact on dedupe effectiveness."
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ewarn
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fi
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if kernel_is -lt 5 1 0; then
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ewarn "IMPORTANT: With kernel versions below 5.1.0, you may experience data corruption"
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ewarn "due to bees using compression in btrfs. You are adviced to use a chronologically"
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ewarn "later kernel, that includes older LTS versions released after 5.0.4:"
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ewarn "Fixed in: 5.1+, 5.0.4+, 4.19.31+, 4.14.108+, 4.9.165+, 4.4.177+, 3.18.137+"
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ewarn "# commit 8e92821 btrfs: fix corruption reading shared and compressed extents after hole punching"
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ewarn
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fi
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if kernel_is -lt 5 4 19; then
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ewarn "With kernel versions below 5.4.19, bees may trigger a btrfs bug when running"
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ewarn "btrfs-balance in parallel. This may lead to meta-data corruption in the worst"
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ewarn
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fi
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fi
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if kernel_is -lt 5.7; then
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ewarn "WARNING: Starting with bees v0.11, kernel versions below 5.7 (except 5.4 LTS)"
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ewarn "are no longer supported. Using bees with such kernels may introduce kernel"
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ewarn "crashes, system hangs, or data corruption. Please DO NOT runs bees with such"
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ewarn "kernels. You will be using bees AT YOUR OWN RISK!"
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ewarn
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fi
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fi
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}
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pkg_postinst() {
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if [[ ${MERGE_TYPE} != buildonly ]]; then
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elog "Bees recommends running the latest current kernel for performance and"
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elog "reliability reasons, see README.md."
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elog
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elog "NEWS: bees now defaults to a much improved extent-based scanner. It is compatible"
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elog "with your existing state database in \`\$BEESHOME\` but it may start over from the"
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elog "beginning. However, it will keep the state of the old scanner, so you can switch"
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elog "back and forth. To actually use the new scanner, use scan mode 4 or remove the"
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elog "scan mode parameter from your init script. Requires kernel 4.14 or higher!"
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fi
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}
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DEFAULT_MAKE_TARGET=all
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EOF
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if [[ ${PV} != "9999" ]] ; then
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echo BEES_VERSION=v${PV} >>localconf || die
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echo BEES_VERSION=v${MY_PV} >>localconf || die
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fi
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}
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