#!/bin/bash

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# called by dracut

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check() {

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# No point trying to support resume, if no swap partition exist

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[[ $hostonly ]] || [[ $mount_needs ]] && {

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for fs in "${host_fs_types[@]}"; do

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[[ $fs =~ ^(swap|swsuspend|swsupend)$ ]] && return 0

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done

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return 255

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}

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return 0

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}

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# called by dracut

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cmdline() {

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local _resume

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for dev in "${!host_fs_types[@]}"; do

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[[ ${host_fs_types[$dev]} =~ ^(swap|swsuspend|swsupend)$ ]] || continue

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_resume=$(shorten_persistent_dev "$(get_persistent_dev "$dev")")

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[[ -n ${_resume} ]] && printf " resume=%s" "${_resume}"

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done

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}

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# called by dracut

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install() {

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local _bin

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if [[ $hostonly_cmdline == "yes" ]]; then

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local _resumeconf=$(cmdline)

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[[ $_resumeconf ]] && printf "%s\n" "$_resumeconf" >> "${initdir}/etc/cmdline.d/95resume.conf"

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fi

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# if systemd is included and has the hibernate-resume tool, use it and nothing else

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if dracut_module_included "systemd" && [[ -x $systemdutildir/systemd-hibernate-resume ]]; then

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inst_multiple -o \

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$systemdutildir/system-generators/systemd-hibernate-resume-generator \

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$systemdsystemunitdir/systemd-hibernate-resume@.service \

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$systemdutildir/systemd-hibernate-resume

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return 0

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fi

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# Optional uswsusp support

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for _bin in /usr/sbin/resume /usr/lib/suspend/resume /usr/lib/uswsusp/resume

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do

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[[ -x "${_bin}" ]] && {

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inst "${_bin}" /usr/sbin/resume

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[[ $hostonly ]] && [[ -f /etc/suspend.conf ]] && inst -H /etc/suspend.conf

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break

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}

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done

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if ! dracut_module_included "systemd"; then

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inst_hook cmdline 10 "$moddir/parse-resume.sh"

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else

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inst_script "$moddir/parse-resume.sh" /lib/dracut/parse-resume.sh

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fi

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inst_script "$moddir/resume.sh" /lib/dracut/resume.sh

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}

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