mirror of
https://github.com/Rockbox/rockbox.git
synced 2026-04-12 00:47:49 -04:00
58ace97a4e
Make it a single-file, self-contained script. Change-Id: Idb3e375f1f9774c9328288765c7d1c7c1e01e2d3
185 lines
5 KiB
Bash
Executable file
185 lines
5 KiB
Bash
Executable file
#!/bin/bash
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#Prerequisites:
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#sudo apt update && sudo apt install -y p7zip-full squashfs-tools genisoimage coreutils
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if [[ $# -ne 2 ]]; then
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echo 'usage: ./r1_patcher.sh r1.upt bootloader.r1' >&2
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exit 1
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fi
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################################################################################
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### init
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################################################################################
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currentdir="$(pwd)"
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updatefile="$(basename "$1")"
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updatefile_rb="${updatefile%.*}_rb.upt"
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workingdir="$(realpath ./working_dir)"
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workingdir_in="$workingdir/in"
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workingdir_out="$workingdir/out"
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rm -rf "$workingdir"
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mkdir "$workingdir"
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mkdir "$workingdir_in"
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mkdir "$workingdir_out"
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################################################################################
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### extract
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################################################################################
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# extract iso
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mkdir -p "$workingdir_in/image_contents"
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7z -o"$workingdir_in/image_contents" x "$updatefile"
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# create xImage (unchanged)
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mkdir -p "$workingdir_out/xImage"
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cat "$workingdir_in/image_contents/ota_v0"/xImage.* > "$workingdir_out/xImage/xImage"
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# create rootfs
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mkdir -p "$workingdir_in/rootfs"
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mkdir -p "$workingdir_in/rootfs/extracted"
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cat "$workingdir_in/image_contents/ota_v0"/rootfs.squashfs.* > "$workingdir_in/rootfs/rootfs.squashfs"
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# extract rootfs
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unsquashfs -f -d "$workingdir_in/rootfs/extracted" "$workingdir_in/rootfs/rootfs.squashfs"
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################################################################################
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### update
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################################################################################
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# copy 'bootloader'
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bootloader_file="bootloader.rb"
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cp "$2" "$workingdir_in/rootfs/extracted/usr/bin/$bootloader_file"
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chmod 0755 "$workingdir_in/rootfs/extracted/usr/bin/$bootloader_file"
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# create modified 'hiby_player.sh' script
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cat << EOF > "$workingdir_in/rootfs/extracted/usr/bin/hiby_player.sh"
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#!/bin/sh
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killall hiby_player &>/dev/null
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killall -9 hiby_player &>/dev/null
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killall $bootloader_file &>/dev/null
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killall -9 $bootloader_file &>/dev/null
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/usr/bin/$bootloader_file
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sleep 1s
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EOF
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chmod 0755 "$workingdir_in/rootfs/extracted/usr/bin/hiby_player.sh"
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################################################################################
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### Rockbox Hotplug Logic
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################################################################################
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# 1. Create hotplug helper script
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cat << 'EOF' > "$workingdir_in/rootfs/extracted/usr/bin/rb_hotplug.sh"
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#!/bin/sh
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MNT_SD="/data/mnt/sd_0"
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MNT_USB="/data/mnt/usb"
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case "$MDEV" in
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mmcblk*) MNT="$MNT_SD" ;;
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sd*) MNT="$MNT_USB" ;;
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*) exit 0 ;;
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esac
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case "$ACTION" in
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add|"")
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mkdir -p "$MNT"
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mount -t auto -o flush,noatime "/dev/$MDEV" "$MNT"
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;;
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remove)
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umount -l "$MNT"
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;;
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esac
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EOF
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chmod 0755 "$workingdir_in/rootfs/extracted/usr/bin/rb_hotplug.sh"
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# 2. Check mdev.conf and append rules only if missing
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MDEV_CONF="$workingdir_in/rootfs/extracted/etc/mdev.conf"
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if ! grep -q "mmcblk" "$MDEV_CONF"; then
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echo "mmcblk[0-9]p[0-9] 0:0 660 */usr/bin/rb_hotplug.sh" >> "$MDEV_CONF"
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fi
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if ! grep -q "sd\[a-z\]" "$MDEV_CONF"; then
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echo "sd[a-z][0-9] 0:0 660 */usr/bin/rb_hotplug.sh" >> "$MDEV_CONF"
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fi
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################################################################################
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### rebuild
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################################################################################
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mkdir -p "$workingdir_out/image_contents/ota_v0"
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mksquashfs "$workingdir_in/rootfs/extracted" "$workingdir_out/rootfs.squashfs" -comp lzo -all-root
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cd "$workingdir_out/image_contents/ota_v0"
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# rootfs.squashfs
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split -b 512k "$workingdir_out/rootfs.squashfs" --numeric-suffixes=0 -a 4 rootfs.squashfs.
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rootfs_md5=($(md5sum "$workingdir_out/rootfs.squashfs"))
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rootfs_size=$(stat -c%s "$workingdir_out/rootfs.squashfs")
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md5=$rootfs_md5
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ota_md5_rootfs="ota_md5_rootfs.squashfs.$md5"
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for part in $(ls rootfs.squashfs.[0-9]* | sort); do
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md5next=($(md5sum "$part"))
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echo $md5next >> $ota_md5_rootfs
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mv "$part" "$part.$md5"
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md5=$md5next
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done
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# xImage
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split -b 512k "$workingdir_out/xImage/xImage" --numeric-suffixes=0 -a 4 xImage.
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ximage_md5=($(md5sum "$workingdir_out/xImage/xImage"))
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ximage_size=$(stat -c%s "$workingdir_out/xImage/xImage")
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md5=$ximage_md5
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ota_md5_xImage="ota_md5_xImage.$md5"
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for part in $(ls xImage.[0-9]* | sort); do
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md5next=($(md5sum "$part"))
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echo $md5next >> $ota_md5_xImage
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mv "$part" "$part.$md5"
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md5=$md5next
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done
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# ota_update.in
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echo "ota_version=0
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img_type=kernel
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img_name=xImage
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img_size=$ximage_size
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img_md5=$ximage_md5
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img_type=rootfs
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img_name=rootfs.squashfs
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img_size=$rootfs_size
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img_md5=$rootfs_md5
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" > ota_update.in
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echo > ota_v0.ok
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# ota_config.in
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cd "$workingdir_out/image_contents"
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echo "current_version=0" > ota_config.in
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# iso
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genisoimage -f -U -J -joliet-long -r -allow-lowercase -allow-multidot -o "$currentdir/$updatefile_rb" "$workingdir_out/image_contents/"
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################################################################################
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### cleanup
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################################################################################
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rm -rf "$workingdir"
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exit 0
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