#!/bin/sh
#BLURB="Generate /boot/initrd-<version> for the kernel"

# Assumed to have been written by Patrick J. Volkerding.

# Adapted to Slint by Didier Spaier <didier~at~slint~dot~fr>

# 23 December 2020: added "-m  crc32_generic:crc32_pclmul (dependency of f2fs)
# to the command /usr/share/mkinitrd/mkinitrd_command_generator.sh if the file
# system of the root directory is f2fs
export TEXTDOMAIN=slint
. gettext.sh

# We take as argument the kernel version
# If we are called directly, not with as argument 1 the mountpoint and as
# argument 2 the root partition's name (as do SeTconfig in the installer and
# geinitrd in an installed system), we assume that we are in an installed system
# so the device name and the uuid of root partition are those of the partition
# mounted on /.
rm -rf /tmp/genintrd
if [ $# -lt 2 ]; then
	ROOT_DEVICE=$(findmnt -no SOURCE /)
else
	ROOT_DEVICE="$2"
fi
ROOT_FSTYPE=$(findmnt -no fstype $ROOT_DEVICE)
ROOT_UUID=$(findmnt -no UUID $ROOT_DEVICE)
KERNELLIST=$(ls /boot/vmlinuz-*|grep -v huge)
# Remove the initrds that do not comply to the Debian naming scheme as we want
# that all initrds be found by os-prober which uses this scheme.
ls /boot/|grep ^initrd|while read INITRD; do 
	if [ -f /boot/$INITRD ]; then
		KERNEL=$(echo /boot/$INITRD|sed s/initrd/vmlinuz/)
		if [ ! -f $KERNEL ]; then
			rm /boot/$INITRD
		fi
	fi
done
# We accept only kernels for which associated modules are installed and won't
# rebuild existing initrds.
echo "$KERNELLIST"|while read KERNEL; do
	KERNELVERSION=$(echo $KERNEL|sed "s/.*-//")
	KERNELNAME=$(echo $KERNEL|sed "s#\(.*\)-[^-]\{1,\}#\1#")
	INITRD=$(echo $KERNEL|sed s/vmlinuz/initrd/)
	if [ -d /lib/modules/$KERNELVERSION ] && [ ! -f $INITRD ]; then
		eval_gettext "
Generating an initial ramdisk for use with the kernel $KERNELVERSION. Please wait"
		if [ "$ROOT_FSTYPE" = "f2fs" ]; then
			ADDED_MODULES='-m crc32_generic:crc32_pclmul'
		fi
		chroot . /usr/share/mkinitrd/mkinitrd_command_generator.sh -k $KERNELVERSION $ADDED_MODULES -a "-o $INITRD"|sed "s@-r [[:graph:]]\{1,\}@-r UUID=$ROOT_UUID@" | chroot . bash
		echo
	fi
done