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. ${BUILDFILE%/*}/common.sh
pkgver=20170204.2
package() {
preamble
depends=(systemd-swap)
# In addition to what's configured in fstab, we use systemd-swap to
# manage advanced swap devices. There are 3 things we enable in
# systemd-swap:
#
# - zswap: compress pages on disk
# - zram: compress pages in ram
# - swapfc: in emergencies, allocate space in the filesystem to swap
# to
add-file -m755 usr/share/holo/files/10-"$pkgname"/etc/systemd/swap.conf.holoscript <<EOF
#!/bin/sh
sed '
s/^# Zswap$/& (compress pages on disk)/
s/zswap_enabled=.*/zswap_enabled=1/
/zswap_zpool=z3fold/ {
a# The systemd-swap default '\''z3fold'\'' was added in Linux 4.7; because we
a# are running an -lts kernel, we'\''re still on 4.4, so we fall back to
a# zbud.
azswap_zpool=zbud
}
/^# ZRam/s/.*/& (compress pages in RAM)/
s/zram_enabled=.*/zram_enabled=1/
s/swapfc_enabled=.*/swapfc_enabled=1/
' | awk '\$0==""||!x[\$0]++'
EOF
add-unit etc/systemd/system/local-fs.target.wants/systemd-swap.service
postamble
}
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