gentoo-overlay/sys-kernel/booster/files/installkernel-52-booster.in...

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#!/usr/bin/env bash
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# this file is installed by sys-kernel/booster
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ver=${1}
img=${2}
initrd=$(dirname "${img}")/initrd
# familiar helpers, we intentionally don't use Gentoo functions.sh
die() {
echo -e " ${NOCOLOR-\e[1;31m*\e[0m }${*}" >&2
exit 1
}
einfo() {
echo -e " ${NOCOLOR-\e[1;32m*\e[0m }${*}" >&2
}
ewarn() {
echo -e " ${NOCOLOR-\e[1;33m*\e[0m }${*}" >&2
}
main() {
# re-define for subst to work
[[ -n ${NOCOLOR+yes} ]] && NOCOLOR=
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# Exit if booster is not the INSTALLKERNEL_INITRD_GENERATOR
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[[ ${INSTALLKERNEL_INITRD_GENERATOR} == "booster" ]] || exit 0
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# do nothing if somehow booster is not installed
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[[ -x $(command -v booster) ]] || { ewarn "booster is not installed" && exit 0 ; }
[[ ${EUID} -eq 0 ]] || die "Please run this script as root"
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booster -v build --force --kernel-version="${ver}" "${initrd}" || die "Failed to generate initramfs"
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}
main