├── debian ├── source │ └── format ├── systemd-boot-snapshots.snapper-snapshots.path ├── systemd-boot-snapshots-dracut.triggers ├── systemd-boot-snapshots.systemd-boot-entries.path ├── systemd-boot-snapshots.timeshift-snapshots.path ├── systemd-boot-snapshots.update-systemd-boot-snapshots.service ├── systemd-boot-snapshots.install ├── systemd-boot-snapshots-dracut.install ├── systemd-boot-snapshots-initramfs.install ├── rules ├── changelog ├── copyright └── control ├── .gitignore ├── boot-menu.png ├── notification.png ├── .vscode ├── settings.json └── launch.json ├── .trunk ├── .gitignore ├── configs │ ├── .shellcheckrc │ └── .markdownlint.yaml └── trunk.yaml ├── systemd-boot-snapshots.kdev4 ├── snapper-snapshots.path ├── timeshift-snapshots.path ├── update-systemd-boot-snapshots.service ├── dracut └── 90systemd-boot-snapshots │ ├── systemd-boot-snapshots.sh │ └── module-setup.sh ├── systemd-boot-entries.path ├── initramfs-tools ├── hooks │ └── systemd-boot-snapshots └── scripts │ └── init-bottom │ └── systemd-boot-snapshots ├── systemd-boot-snapshots.conf ├── README.md ├── systemd-boot-snapshots-notify ├── Makefile ├── systemd-boot-mount-snapshot-modules ├── update-systemd-boot-snapshots └── LICENSE /debian/source/format: -------------------------------------------------------------------------------- 1 | 3.0 (native) 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | build/ 2 | .kdev4/ 3 | *.kdev4 4 | .history/ -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots.snapper-snapshots.path: -------------------------------------------------------------------------------- 1 | ../snapper-snapshots.path -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots-dracut.triggers: -------------------------------------------------------------------------------- 1 | activate-noawait update-initramfs 2 | -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots.systemd-boot-entries.path: -------------------------------------------------------------------------------- 1 | ../systemd-boot-entries.path -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots.timeshift-snapshots.path: -------------------------------------------------------------------------------- 1 | ../timeshift-snapshots.path -------------------------------------------------------------------------------- /boot-menu.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/uszie/systemd-boot-snapshots/HEAD/boot-menu.png -------------------------------------------------------------------------------- /notification.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/uszie/systemd-boot-snapshots/HEAD/notification.png -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots.update-systemd-boot-snapshots.service: -------------------------------------------------------------------------------- 1 | ../update-systemd-boot-snapshots.service -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "autoHide.autoHideSideBar": false, 3 | "autoHide.autoHidePanel": false 4 | } 5 | -------------------------------------------------------------------------------- /.trunk/.gitignore: -------------------------------------------------------------------------------- 1 | *out 2 | *logs 3 | *actions 4 | *notifications 5 | plugins 6 | user_trunk.yaml 7 | user.yaml 8 | -------------------------------------------------------------------------------- /systemd-boot-snapshots.kdev4: -------------------------------------------------------------------------------- 1 | [Project] 2 | CreatedFrom=Makefile 3 | Manager=KDevCustomMakeManager 4 | Name=systemd-boot-snapshots 5 | -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots.install: -------------------------------------------------------------------------------- 1 | systemd-boot-snapshots.conf /etc/default 2 | update-systemd-boot-snapshots /usr/sbin 3 | -------------------------------------------------------------------------------- /.trunk/configs/.shellcheckrc: -------------------------------------------------------------------------------- 1 | enable=all 2 | source-path=SCRIPTDIR 3 | disable=SC2154 4 | 5 | # If you're having issues with shellcheck following source, disable the errors via: 6 | # disable=SC1090 7 | # disable=SC1091 8 | -------------------------------------------------------------------------------- /snapper-snapshots.path: -------------------------------------------------------------------------------- 1 | [Unit] 2 | Description=Monitors for new Snapper snapshots 3 | 4 | [Path] 5 | PathModified=/.snapshots 6 | Unit=update-systemd-boot-snapshots.service 7 | 8 | [Install] 9 | WantedBy=multi-user.target 10 | -------------------------------------------------------------------------------- /timeshift-snapshots.path: -------------------------------------------------------------------------------- 1 | [Unit] 2 | Description=Monitors for new Timeshift snapshots 3 | 4 | [Path] 5 | PathModified=/run/timeshift/backup/timeshift-btrfs/snapshots 6 | Unit=update-systemd-boot-snapshots.service 7 | 8 | [Install] 9 | WantedBy=multi-user.target 10 | -------------------------------------------------------------------------------- /.trunk/configs/.markdownlint.yaml: -------------------------------------------------------------------------------- 1 | # Autoformatter friendly markdownlint config (all formatting rules disabled) 2 | default: true 3 | blank_lines: false 4 | bullet: false 5 | html: false 6 | indentation: false 7 | line_length: false 8 | spaces: false 9 | url: false 10 | whitespace: false 11 | -------------------------------------------------------------------------------- /update-systemd-boot-snapshots.service: -------------------------------------------------------------------------------- 1 | [Unit] 2 | Description=Update systemd boot snapshots 3 | Before=shutdown.target sleep.target 4 | 5 | [Service] 6 | Type=oneshot 7 | ExecStart=update-systemd-boot-snapshots 8 | 9 | [Install] 10 | WantedBy=shutdown.target 11 | WantedBy=sleep.target 12 | -------------------------------------------------------------------------------- /dracut/90systemd-boot-snapshots/systemd-boot-snapshots.sh: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # shellcheck disable=SC2154 4 | root_fstype="$fstype" 5 | root_flags="$rflags" 6 | root_mount="$NEWROOT" 7 | root_device="${root#block:}" 8 | 9 | systemd-boot-mount-snapshot-modules.sh "$root_device" "$root_mount" "$root_flags" "$root_fstype" > /dev/null 10 | -------------------------------------------------------------------------------- /systemd-boot-entries.path: -------------------------------------------------------------------------------- 1 | [Unit] 2 | Description=Monitors for new boot loader entries 3 | DefaultDependencies=no 4 | Requires=boot-efi.mount 5 | After=boot-efi.mount 6 | BindsTo=boot-efi.mount 7 | 8 | [Path] 9 | PathModified=/boot/efi/loader/entries 10 | Unit=update-systemd-boot-snapshots.service 11 | 12 | [Install] 13 | WantedBy=boot-efi.mount 14 | -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots-dracut.install: -------------------------------------------------------------------------------- 1 | #!/usr/bin/dh-exec 2 | dracut/90systemd-boot-snapshots/* /usr/lib/dracut/modules.d/90systemd-boot-snapshots 3 | systemd-boot-mount-snapshot-modules => /usr/lib/dracut/modules.d/90systemd-boot-snapshots/systemd-boot-mount-snapshot-modules.sh 4 | systemd-boot-snapshots-notify /usr/lib/dracut/modules.d/90systemd-boot-snapshots 5 | -------------------------------------------------------------------------------- /debian/systemd-boot-snapshots-initramfs.install: -------------------------------------------------------------------------------- 1 | initramfs-tools/scripts/init-bottom/systemd-boot-snapshots /usr/share/initramfs-tools/scripts/init-bottom 2 | initramfs-tools/hooks/systemd-boot-snapshots /usr/share/initramfs-tools/hooks 3 | systemd-boot-mount-snapshot-modules /usr/lib/initramfs-tools/bin 4 | systemd-boot-snapshots-notify /usr/lib/initramfs-tools/bin 5 | -------------------------------------------------------------------------------- /initramfs-tools/hooks/systemd-boot-snapshots: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | set -e 4 | 5 | PREREQ="overlayroot" 6 | 7 | prereqs() 8 | { 9 | echo "${PREREQ}" 10 | } 11 | 12 | case "${1}" in 13 | prereqs) 14 | prereqs 15 | exit 0 16 | ;; 17 | esac 18 | 19 | . /usr/share/initramfs-tools/hook-functions 20 | 21 | copy_exec /usr/lib/initramfs-tools/bin/systemd-boot-mount-snapshot-modules /bin 22 | copy_exec /usr/lib/initramfs-tools/bin/systemd-boot-snapshots-notify /bin 23 | -------------------------------------------------------------------------------- /debian/rules: -------------------------------------------------------------------------------- 1 | #!/usr/bin/make -f 2 | 3 | export DH_OPTIONS 4 | 5 | override_dh_auto_build: 6 | 7 | override_dh_auto_install: 8 | 9 | override_dh_installdocs: 10 | dh_installdocs $(wildcard TODO) README.md LICENSE 11 | 12 | override_dh_installsystemd: 13 | dh_installsystemd --name=update-systemd-boot-snapshots 14 | dh_installsystemd --name=systemd-boot-entries 15 | dh_installsystemd --name=timeshift-snapshots 16 | dh_installsystemd --name=snapper-snapshots 17 | 18 | %: 19 | dh $@ 20 | -------------------------------------------------------------------------------- /initramfs-tools/scripts/init-bottom/systemd-boot-snapshots: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | PREREQ="overlayroot" 4 | 5 | prereqs() 6 | { 7 | echo "${PREREQ}" 8 | } 9 | 10 | case "${1}" in 11 | prereqs) 12 | prereqs 13 | exit 0 14 | ;; 15 | esac 16 | 17 | . /scripts/functions 18 | 19 | root_fstype="$(get_fstype $ROOT)" 20 | root_flags="$ROOTFLAGS" 21 | root_mount="$rootmnt" 22 | root_device="$ROOT" 23 | 24 | systemd-boot-mount-snapshot-modules "$root_device" "$root_mount" "$root_flags" "$root_fstype" > /dev/null 25 | 26 | -------------------------------------------------------------------------------- /systemd-boot-snapshots.conf: -------------------------------------------------------------------------------- 1 | # Maximum snapshots to show in the boot menu 2 | # SHOW_SNAPSHOTS_MAX="99999" 3 | 4 | # Type of snapshots to show. 5 | # Valid options are ondemand, boot, hourly, daily, weekly, monthly and all. 6 | # SNAPSHOT_PERIOD_TYPE="all" 7 | 8 | # If true a tmpfs overlay is mounted over the root device. 9 | # If the snapshot is read only this is necessary to boot into the snapshot. 10 | # If the snapshot is read write it wil prevent the snapshot from changing. 11 | # All data written during as session is discared when the system reboots. 12 | # USE_OVERLAYROOT="true" 13 | -------------------------------------------------------------------------------- /dracut/90systemd-boot-snapshots/module-setup.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | check() { 4 | return 0 5 | } 6 | 7 | depends() { 8 | # We do not depend on any modules - just some root 9 | return 0 10 | } 11 | 12 | # called by dracut 13 | installkernel() { 14 | return 0 15 | } 16 | 17 | install() { 18 | # shellcheck disable=SC2154 19 | inst_hook pre-pivot 90 "$moddir/systemd-boot-snapshots.sh" 20 | inst_script "$moddir/systemd-boot-mount-snapshot-modules.sh" /sbin/systemd-boot-mount-snapshot-modules.sh 21 | inst_script "$moddir/systemd-boot-snapshots-notify" /sbin/systemd-boot-snapshots-notify 22 | } 23 | -------------------------------------------------------------------------------- /.trunk/trunk.yaml: -------------------------------------------------------------------------------- 1 | version: 0.1 2 | cli: 3 | version: 1.3.1 4 | plugins: 5 | sources: 6 | - id: trunk 7 | ref: v0.0.8 8 | uri: https://github.com/trunk-io/plugins 9 | lint: 10 | enabled: 11 | - git-diff-check 12 | - oxipng@8.0.0 13 | - markdownlint@0.33.0 14 | - shellcheck@0.9.0 15 | - gitleaks@8.15.2 16 | - shfmt@3.5.0 17 | - prettier@2.8.2 18 | runtimes: 19 | enabled: 20 | - go@1.18.3 21 | - node@18.12.1 22 | actions: 23 | disabled: 24 | - trunk-announce 25 | - trunk-check-pre-push 26 | - trunk-fmt-pre-commit 27 | enabled: 28 | - trunk-upgrade-available 29 | -------------------------------------------------------------------------------- /debian/changelog: -------------------------------------------------------------------------------- 1 | systemd-boot-snapshots (0.12) UNRELEASED; urgency=medium 2 | 3 | * Replace 'type' with 'command -v'. 4 | 5 | -- Usarin Heininga Sat, 22 Jul 2023 16:17:45 +0200 6 | 7 | systemd-boot-snapshots (0.11) UNRELEASED; urgency=medium 8 | 9 | * Initial Release. update-systemd-boot-snapshots.service: Use default dependencies 10 | 11 | -- Usarin Heininga Thu, 03 Feb 2022 11:44:10 +0100 12 | 13 | systemd-boot-snapshots (0.10) UNRELEASED; urgency=medium 14 | 15 | * Initial Release. 16 | 17 | -- Usarin Heininga Thu, 03 Feb 2022 11:44:10 +0100 18 | -------------------------------------------------------------------------------- /.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | // Use IntelliSense to learn about possible attributes. 3 | // Hover to view descriptions of existing attributes. 4 | // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 5 | "version": "0.2.0", 6 | "configurations": [ 7 | { 8 | "type": "bashdb", 9 | "request": "launch", 10 | "name": "Bash-Debug (simplest configuration)", 11 | "program": "${workspaceFolder}/update-systemd-boot-snapshots" 12 | }, 13 | { 14 | "type": "bashdb", 15 | "request": "launch", 16 | "name": "Sudo Bash-Debug (hardcoded script name)", 17 | "cwd": "${workspaceFolder}", 18 | "program": "${workspaceFolder}/update-systemd-boot-snapshots", 19 | "pathBashdb": "/usr/local/bin/bashdb", 20 | "pathPkill": "/usr/local/bin/pkill", 21 | "env": { 22 | "DEBUG_AS_ROOT": "true", 23 | "SUDO_ASKPASS": "/usr/bin/ksshaskpass" 24 | } 25 | } 26 | ] 27 | } 28 | -------------------------------------------------------------------------------- /debian/copyright: -------------------------------------------------------------------------------- 1 | Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ 2 | Upstream-Name: systemd-boot-snapshots 3 | Upstream-Contact: Usarin Heininga 4 | Source: https://github.com/uszie/systemd-boot-snapshots 5 | 6 | Files: * 7 | Copyright: 2021 Usarin Heininga 8 | License: GPL-3.0+ 9 | 10 | Files: debian/* 11 | Copyright: 2021 Usarin Heininga 12 | License: GPL-3.0+ 13 | 14 | License: GPL-3.0+ 15 | This program is free software: you can redistribute it and/or modify 16 | it under the terms of the GNU General Public License as published by 17 | the Free Software Foundation, either version 3 of the License, or 18 | (at your option) any later version. 19 | . 20 | This package is distributed in the hope that it will be useful, 21 | but WITHOUT ANY WARRANTY; without even the implied warranty of 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 | GNU General Public License for more details. 24 | . 25 | You should have received a copy of the GNU General Public License 26 | along with this program. If not, see . 27 | . 28 | On Debian systems, the complete text of the GNU General 29 | Public License version 3 can be found in "/usr/share/common-licenses/GPL-3". 30 | -------------------------------------------------------------------------------- /debian/control: -------------------------------------------------------------------------------- 1 | Source: systemd-boot-snapshots 2 | Section: admin 3 | Priority: optional 4 | Maintainer: Usarin Heininga 5 | Build-Depends: dh-exec, debhelper-compat (= 12) 6 | Standards-Version: 4.5.1 7 | Homepage: https://github.com/uszie/systemd-boot-snapshots 8 | Vcs-Browser: https://github.com/uszie/systemd-boot-snapshots 9 | Vcs-Git: https://github.com/uszie/systemd-boot-snapshots.git 10 | Rules-Requires-Root: no 11 | 12 | Package: systemd-boot-snapshots 13 | Architecture: all 14 | Depends: systemd, 15 | ${misc:Depends} 16 | Recommends: kernelstub, 17 | systemd-boot-snapshots-initramfs | systemd-boot-snapshots-dracut 18 | Suggests: timeshift, snapper 19 | Description: Improves systemd-boot by adding filesystem snapshots to the boot menu. 20 | When a new btrfs snapshot is made, 21 | the systemd boot menu will be updated with the new snapshot. 22 | At boot time it's now possible to boot to an earlier state, 23 | in case of a system failure or failed update. 24 | 25 | Package: systemd-boot-snapshots-initramfs 26 | Architecture: all 27 | Depends: initramfs-tools, 28 | overlayroot, 29 | libglib2.0-bin, 30 | ${misc:Depends} 31 | Description: Mount the snapshot parent modules folder during boot. 32 | This is the initramfs component for using 33 | systemd-boot-snapshots. 34 | Since systemd-boot boots from the esp partition, 35 | there is a change the snapshot doesn't contain 36 | modules for the booted kernel. 37 | In this case the initramfs will mount the 38 | modules directory from the default subvolume 39 | to the /lib/modules folder from the snapshot. 40 | 41 | Package: systemd-boot-snapshots-dracut 42 | Architecture: all 43 | Depends: dracut, 44 | libglib2.0-bin, 45 | ${misc:Depends} 46 | Description: Mount the snapshot parent modules folder during boot. 47 | This is the dracut component for using 48 | systemd-boot-snapshots. 49 | Since systemd-boot boots from the esp partition, 50 | there is a change the snapshot doesn't contain 51 | modules for the booted kernel. 52 | In this case the initramfs will mount the 53 | modules directory from the default subvolume 54 | to the /lib/modules folder from the snapshot. 55 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ### systemd-boot-snapshots 2 | 3 | ### Description: 4 | 5 | Systemd-boot-snapshot improves systemd-boot by adding btrfs snapshots to the boot menu. 6 | 7 | You can boot your system into a snapshot from the boot menu. 8 | It has support for all btrfs snapshots, 9 | including "Timeshift" and "Snapper". 10 | Read-only snapshots are supported as well. 11 | Supported initrd systems are "initramfs-tools" and "dracut", but only on Ubuntu like systems for now. 12 | 13 | By default a root overlay is setup when booting into a snapshot. 14 | This prevents changes to a snapshot and makes it possible to boot a read-only snapshot. 15 | 16 | With systemd-boot there is a big chance the booted kernel is not supported by 17 | the snapshot, since the kernel is installed on the UEFI partition and is not part of the snapshot. 18 | When this is the case, systemd-boot-snapshots will mount the /lib/modules/{KERNEL_VERSION} directory 19 | from the master snapshot onto the modules directory from the snapshot. 20 | 21 | A notification message will be shown at the desktop to notify the user of being booted into a snapshot. 22 | 23 | ## Screenshots: 24 | 25 | Boot menu: 26 | ![bootmenu](boot-menu.png) 27 | 28 | Desktop with "booted into a snapshot" notification: 29 | ![notification](notification.png) 30 | 31 | ### Requirements: 32 | systemd, libglib2.0-bin and overlayroot when using initramfs-tools. 33 | 34 | ### Install: 35 | ``` 36 | sudo make install 37 | sudo update-initramfs -ckall 38 | ``` 39 | 40 | After this you should run the tool you use to copy the kernel image to the UEFI partition (kernelstub for example). 41 | 42 | Ubuntu packages are available at my private repository at ppa:usarinheininga/ubuntu-plasma. 43 | To add this repository and install systemd-boot-snapshots, run: 44 | ``` 45 | sudo add-apt-repository ppa:usarinheininga/ubuntu-plasma 46 | sudo apt-get update 47 | sudo apt install systemd-boot-snapshots 48 | ``` 49 | 50 | ### Usage: 51 | Systemd-boot-snapshots will monitor the system for new snapshots or changes to the boot loader config entries 52 | and update when needed. 53 | 54 | To manually populate the boot menu with the available snapshots, run: 55 | ``` 56 | sudo update-systemd-boot-snapshots 57 | ``` 58 | 59 | At boot press space to enter the boot menu. 60 | Now you can select a snapshot entry to boot into. 61 | -------------------------------------------------------------------------------- /systemd-boot-snapshots-notify: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | set -e 4 | 5 | notification_title='Snapshot restore mode' 6 | notification_icon='dialog-warning' 7 | notification_header='This is a snapshot session!' 8 | notification_description='Changes to the system will be discarded after a reboot. 9 | Changes to your home folder might be persistent, depending on your configuration. 10 | If you want to restore this snapshot permanently, use a snapshot tool like Timeshift or Snapper.' 11 | tmp_dir="/tmp/systemd-boot-snapshots" 12 | pid_file="${tmp_dir}/systemd-boot-snapshots-notify.pid" 13 | 14 | cleanup() { 15 | if [ -f "$pid_file" ] 16 | then 17 | pid="$(cat $pid_file)" 18 | kill "$pid" 19 | rm -f "$pid_file" 20 | fi 21 | 22 | [ -d "$tmp_dir" ] && rmdir --ignore-fail-on-non-empty "$tmp_dir" 23 | } 24 | 25 | trap cleanup EXIT 26 | 27 | snapshot_type="$1" 28 | action_reply="start_snapshot_program" 29 | action_button="[]" 30 | action_program="" 31 | if [ "$snapshot_type" = "timeshift" ] 32 | then 33 | action_program="timeshift-launcher" 34 | action_button="[\"${action_reply}\", \"Start Timeshift\"]" 35 | elif [ "$snapshot_type" = "snapper" ] 36 | then 37 | action_program="pkexec env DISPLAY="$DISPLAY" XAUTHORITY="$XAUTHORITY" snapper-gui" 38 | action_button="[\"${action_reply}\", \"Start Snapper\"]" 39 | fi 40 | 41 | dbus_call_cmd="gdbus call --session --dest org.freedesktop.Notifications --object-path /org/freedesktop/Notifications --method org.freedesktop.Notifications.Notify" 42 | 43 | # At startup the org.freedesktop.Notifications interface might not be available immediately 44 | # Keep try'ing for 10 seconds 45 | for i in $(seq 1 10) 46 | do 47 | set +e 48 | 49 | id=$($dbus_call_cmd -- "$notification_title" '0' "$notification_icon" "$notification_header" "$notification_description" "$action_button" '{"urgency": }' 'int32 -1') 50 | if [ "$?" -eq 0 ] 51 | then 52 | break 53 | fi 54 | 55 | sleep 1 56 | done 57 | 58 | id="${id%,)}" 59 | id="${id#(uint32 }" 60 | if [ -z "${id##*[!0-9]*}" ] 61 | then 62 | echo "Failed to send notification to org.freedesktop.Notifications.Notify" 63 | exit 1 64 | fi 65 | 66 | dbus_expr='\|^[[:space:]]*/org/freedesktop/Notifications:[[:space:]]\+org.freedesktop.Notifications.' 67 | mkdir -p "$tmp_dir" 68 | 69 | dbus_monitor_cmd="gdbus monitor --session --dest org.freedesktop.Notifications --object-path /org/freedesktop/Notifications" 70 | { 71 | $dbus_monitor_cmd & 72 | echo $! >&3; 73 | } 3>"$pid_file" | 74 | while read -r line 75 | do 76 | set -e 77 | closed_id="$(echo "$line" | sed "${dbus_expr}NotificationClosed[[:space:]]*(uint32[[:space:]]*$id,[[:space:]]*uint32[[:space:]]\+[0-9]\+[[:space:]]*)[[:space:]]*$|!d; s//$id/")" 78 | if [ -n "$closed_id" ] 79 | then 80 | exit 81 | fi 82 | 83 | action_id="$(echo "$line" | sed "${dbus_expr}ActionInvoked[[:space:]]*(uint32[[:space:]]*$id,[[:space:]]*'${action_reply}'[[:space:]]*)[[:space:]]*$|!d; s//$id/")" 84 | if [ -n "$action_id" ] 85 | then 86 | nohup $action_program > /dev/null & 87 | break 88 | fi 89 | done 90 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | PKGNAME ?= systemd-boot-snapshots 2 | PREFIX ?= /usr 3 | 4 | SHARE_DIR = $(DESTDIR)/$(PREFIX)/share 5 | SBIN_DIR = $(DESTDIR)/$(PREFIX)/sbin 6 | LIB_DIR = $(DESTDIR)/$(PREFIX)/lib 7 | 8 | .PHONY: build install uninstall help 9 | 10 | build: 11 | 12 | install: 13 | @install -Dm644 -t "$(DESTDIR)/etc/default/" systemd-boot-snapshots.conf 14 | @install -Dm755 -t "$(SBIN_DIR)/" update-systemd-boot-snapshots 15 | @install -Dm755 -t "$(LIB_DIR)/initramfs-tools/bin/" systemd-boot-mount-snapshot-modules 16 | @install -Dm755 -t "$(LIB_DIR)/initramfs-tools/bin/" systemd-boot-snapshots-notify 17 | @install -Dm755 -t "$(SHARE_DIR)/initramfs-tools/scripts/init-bottom/" initramfs-tools/scripts/init-bottom/systemd-boot-snapshots 18 | @install -Dm755 -t "$(SHARE_DIR)/initramfs-tools/hooks/" initramfs-tools/hooks/systemd-boot-snapshots 19 | @install -Dm755 -t "$(LIB_DIR)/dracut/modules.d/90systemd-boot-snapshots/" dracut/90systemd-boot-snapshots/* 20 | @install -Dm755 -T systemd-boot-mount-snapshot-modules "$(LIB_DIR)/dracut/modules.d/90systemd-boot-snapshots/systemd-boot-mount-snapshot-modules.sh" 21 | @install -Dm755 -t "$(LIB_DIR)/dracut/modules.d/90systemd-boot-snapshots/" systemd-boot-snapshots-notify 22 | @install -Dm644 -t "$(LIB_DIR)/systemd/system/" update-systemd-boot-snapshots.service 23 | @install -Dm644 -t "$(LIB_DIR)/systemd/system/" systemd-boot-entries.path 24 | @install -Dm644 -t "$(LIB_DIR)/systemd/system/" snapper-snapshots.path 25 | @install -Dm644 -t "$(LIB_DIR)/systemd/system/" timeshift-snapshots.path 26 | @install -Dm644 -t "$(SHARE_DIR)/doc/$(PKGNAME)/" LICENSE 27 | @install -Dm644 -t "$(SHARE_DIR)/doc/$(PKGNAME)/" README.md 28 | @systemctl daemon-reload 29 | @systemctl enable --now timeshift-snapshots.path snapper-snapshots.path systemd-boot-entries.path 30 | 31 | uninstall: 32 | @systemctl disable --now timeshift-snapshots.path snapper-snapshots.path systemd-boot-entries.path 33 | @systemctl daemon-reload 34 | @rm -f "$(DESTDIR)/etc/default/systemd-boot-snapshots.conf" 35 | @rm -f "$(SBIN_DIR)/update-systemd-boot-snapshots" 36 | @rm -f "$(LIB_DIR)/initramfs-tools/bin/systemd-boot-mount-snapshot-modules" 37 | @rm -f "$(LIB_DIR)/initramfs-tools/bin/systemd-boot-snapshots-notify" 38 | @rm -f "$(SHARE_DIR)/initramfs-tools/scripts/init-bottom/systemd-boot-snapshots" 39 | @rm -f "$(SHARE_DIR)/initramfs-tools/hooks/systemd-boot-snapshots" 40 | @rm -rf "$(LIB_DIR)/dracut/modules.d/90systemd-boot-snapshots" 41 | @rm -f "$(LIB_DIR)/systemd/system/update-systemd-boot-snapshots.service" 42 | @rm -f "$(LIB_DIR)/systemd/system/systemd-boot-entries.path" 43 | @rm -f "$(LIB_DIR)/systemd/system/snapper-snapshots.path" 44 | @rm -f "$(LIB_DIR)/systemd/system/timeshift-snapshots.path" 45 | @rm -f "$(SHARE_DIR)/doc/$(PKGNAME)/README.md" 46 | @rm -f "$(SHARE_DIR)/doc/$(PKGNAME)/LICENSE" 47 | @rmdir --ignore-fail-on-non-empty "$(SHARE_DIR)/doc/$(PKGNAME)/" || : 48 | 49 | help: 50 | @echo 51 | @echo "Usage: $(MAKE) [ = ... ] [ ]" 52 | @echo 53 | @echo " actions: install" 54 | @echo " uninstall" 55 | @echo " help" 56 | @echo 57 | @echo " parameter | type | description | defaults" 58 | @echo " ----------+------+--------------------------------+----------------------------" 59 | @echo " DESTDIR | path | install destination | " 60 | @echo " PREFIX | path | system tree prefix | '/usr'" 61 | @echo " SHARE_DIR | path | shared data location | '\$$(DESTDIR)\$$(PREFIX)/share'" 62 | @echo " LIB_DIR | path | system libraries location | '\$$(DESTDIR)\$$(PREFIX)/lib'" 63 | @echo " PKGNAME | name | name of the ditributed package | 'systemd-boot-snapshots'" 64 | @echo 65 | -------------------------------------------------------------------------------- /systemd-boot-mount-snapshot-modules: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | root_device="$1" 4 | root_mount="$2" 5 | root_flags="$3" 6 | root_fstype="$4" 7 | parent_subvol="$(sed -n -e 's/.*\(parent_subvol=[^ ]*\).*/\1/; s/parent_subvol=//p' /proc/cmdline)" 8 | run_dir="/run/systemd-boot-snapshots" 9 | tmp_dir="/tmp/systemd-boot-snapshots" 10 | 11 | trim_whitespace() { 12 | local var="$*" 13 | var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters 14 | var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters 15 | printf "%s" "$var" 16 | } 17 | 18 | strglobin() { 19 | [ -n "$1" -a -z "${1##*$2*}" ] 20 | } 21 | 22 | install_notifier_service() 23 | { 24 | snapshot_type="" 25 | if strglobin "$root_flags" "[ ,]subvol=*.snapshots/[0-9]*/snapshot" 26 | then 27 | snapshot_type="snapper" 28 | elif strglobin "$root_flags" "[ ,]subvol=*timeshift-btrfs/snapshots/[0-9][0-9][0-9][0-9]-[0-9]*/*" 29 | then 30 | snapshot_type="timeshift" 31 | fi 32 | 33 | target="graphical-session.target" 34 | install_target="xdg-desktop-autostart.target" 35 | unit="[Unit] 36 | Description=Notify user of snapshot mode 37 | PartOf=$target 38 | After=$target 39 | 40 | [Service] 41 | Type=exec 42 | ExecStartPre=/usr/bin/install -D ${run_dir}/systemd-boot-snapshots-notify ${tmp_dir}/systemd-boot-snapshots-notify 43 | ExecStart=${tmp_dir}/systemd-boot-snapshots-notify $snapshot_type 44 | Restart=no 45 | KillMode=process 46 | Slice=app.slice 47 | 48 | [Install] 49 | WantedBy=$install_target 50 | " 51 | mkdir -p "$run_dir" 52 | cp "/bin/systemd-boot-snapshots-notify" "$run_dir" 53 | mkdir -p "/run/systemd/user/${install_target}.wants" 54 | echo "$unit" > "/run/systemd/user/systemd-boot-snapshots-notify.service" 55 | ln -s "/run/systemd/user/systemd-boot-snapshots-notify.service" "/run/systemd/user/${install_target}.wants/systemd-boot-snapshots-notify.service" 56 | } 57 | 58 | if [ $# -ne 4 ] 59 | then 60 | echo "Invalid usage: use systemd-boot-mount-snapshot-modules device mount flags fstype." 61 | exit 1 62 | fi 63 | 64 | if command -v id > /dev/null && [ ! "$(id -u)" -eq 0 ] 65 | then 66 | echo "Please run as root." >&2 67 | exit 1 68 | fi 69 | 70 | if [ -z "$parent_subvol" ] 71 | then 72 | echo "No snapshot parent subvolume defined on the kernel command line." 73 | exit 1 74 | fi 75 | 76 | if [ "$root_fstype" != "btrfs" ] 77 | then 78 | echo "Only btrfs is supported." >&2 79 | exit 1 80 | fi 81 | 82 | kernel_version=$(uname -r) 83 | if [ -d "${root_mount}/lib/modules/${kernel_version}" ] && [ -f "${root_mount}/lib/modules/${kernel_version}/modules.dep" ] 84 | then 85 | # This kernel version is supported in this snapshot, so do nothing. 86 | install_notifier_service 87 | exit 0 88 | fi 89 | 90 | mount_path="${run_dir}/root" 91 | mkdir -p "$mount_path" 2>/dev/null 92 | mount -o ro "$root_device" "$mount_path" 93 | 94 | root_subvol="${root_flags##*subvol=}" 95 | root_subvol="${root_subvol%%,*}" 96 | root_subvol="${root_subvol#/}" 97 | 98 | if [ "$parent_subvol" = "auto" ] 99 | then 100 | # auto detect parent subvolume defined on the kernel command line. 101 | NL=' 102 | ' 103 | subvol_info="$(btrfs subvolume show "${mount_path}/${root_subvol}")" 104 | parent_uuid="${subvol_info##*Parent UUID:}" 105 | parent_uuid="${parent_uuid%%Received UUID:*}" 106 | parent_uuid="$(trim_whitespace "$parent_uuid")" 107 | parent_subvol_info="$(btrfs subvolume show -u "$parent_uuid" "${mount_path}/${root_subvol}")" 108 | parent_subvol="${parent_subvol_info%%"$NL"*}" 109 | if [ -z "$parent_subvol" ] 110 | then 111 | # Could not determine the snapshot parent 112 | # Now it's not possible to mount the modules 113 | # directory from the snapshot parent subvolume 114 | umount "$mount_path" 115 | echo "Could not determine the snapshot parent subvolume." >&2 116 | exit 1 117 | fi 118 | fi 119 | 120 | # mount the kernel modules directory. 121 | mkdir -p "${root_mount}/lib/modules/${kernel_version}" 2>/dev/null 122 | mount -o ro,bind "${mount_path}/${parent_subvol}/lib/modules/${kernel_version}" "${root_mount}/lib/modules/${kernel_version}" 123 | umount "$mount_path" 124 | 125 | install_notifier_service 126 | -------------------------------------------------------------------------------- /update-systemd-boot-snapshots: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | . /etc/default/systemd-boot-snapshots.conf 4 | 5 | timeshift_mount="/run/timeshift/backup" 6 | timeshift_subfolder="timeshift-btrfs/snapshots" 7 | timeshift_snapshots_path="${timeshift_mount}/${timeshift_subfolder}" 8 | sep=";" 9 | NL=' 10 | ' 11 | VERBOSE=0 12 | 13 | date_format="+%b %d %Y %H:%M" 14 | 15 | cleanup() { 16 | if [ -n "$mount_dir" ]; then 17 | umount "$mount_dir" 18 | rmdir "$mount_dir" 19 | fi 20 | } 21 | 22 | trap cleanup EXIT 23 | 24 | timeshift --list >/dev/null 2>&1 #Make sure the snapshot folder is mounted 25 | 26 | splitsep() { 27 | local sep="$1" 28 | local str="$2" 29 | shift 2 30 | local tmp 31 | 32 | while [ -n "$str" ] && [ "$#" -gt 1 ]; do 33 | # shellcheck disable=SC2295 34 | tmp="${str%%$sep*}" 35 | eval "$1="'${tmp}'"" 36 | str="${str#"$tmp"}" 37 | # shellcheck disable=SC2295 38 | str="${str#$sep}" 39 | shift 40 | done 41 | 42 | [ -n "$str" ] && [ -n "$1" ] && eval "$1="'$str'"" 43 | 44 | return 0 45 | } 46 | 47 | # returns OK if $1 contains literal string $2 (and isn't empty) 48 | strstr() { 49 | [ "${1##*"$2"*}" != "$1" ] 50 | } 51 | 52 | # returns OK if $1 matches (completely) glob pattern $2 53 | # An empty $1 will not be considered matched, even if $2 is * which technically 54 | # matches; as it would match anything, it's not an interesting case. 55 | strglob() { 56 | # shellcheck disable=SC2295 57 | [ -n "$1" ] && [ -z "${1##$2}" ] 58 | } 59 | 60 | # returns OK if $1 contains (anywhere) a match of glob pattern $2 61 | # An empty $1 will not be considered matched, even if $2 is * which technically 62 | # matches; as it would match anything, it's not an interesting case. 63 | strglobin() { 64 | # shellcheck disable=SC2295 65 | [ -n "$1" ] && [ -z "${1##*$2*}" ] 66 | } 67 | 68 | str_replace() { 69 | local in="$1" 70 | local s="$2" 71 | local r="$3" 72 | local out='' 73 | 74 | while strstr "${in}" "$s"; do 75 | chop="${in%%"$s"*}" 76 | out="${out}${chop}$r" 77 | in="${in#*"$s"}" 78 | done 79 | 80 | eval "$4="'${out}${in}'"" 81 | } 82 | 83 | get_root_partition() { 84 | btrfs filesystem show / | grep " path " | sed 's/.* path *//' 85 | } 86 | 87 | get_root_uuid() { 88 | sudo btrfs filesystem show / | grep " uuid: " | sed 's/.* uuid: *//' 89 | } 90 | 91 | get_loader_entry_root_uuid() { 92 | local _loader_entry="$1" 93 | grep -o " root=UUID=[^ ]* " "$_loader_entry" | sed 's/.*root=UUID=//' 94 | } 95 | 96 | get_tmp_folder() { 97 | mktemp -d 98 | } 99 | 100 | get_property() { 101 | local input="" 102 | if [ -z "$4" ]; then 103 | if [ -z "$1" ]; then 104 | echo "$1 not set! Using $1=$3" >&2 105 | echo "$3" 106 | return 107 | fi 108 | 109 | eval input="$1=\$$1" 110 | elif [ ! -f "$4" ]; then 111 | echo "$4 not found! Using $1=$3" >&2 112 | echo "$3" 113 | return 114 | else 115 | input=$(cat "$4") 116 | fi 117 | 118 | param_value=$(echo "$input" | sed '/^\#/d' | grep "$1" | tail -n 1 | 119 | cut -d "=" -f2- | sed 's/^[[:space:]]*"\?[[:space:]]*//;s/[[:space:]]*"\?[[:space:]]*$//; s/.*/\L&/') 120 | if [ -z "$param_value" ]; then 121 | #parameter not set return default 122 | echo "$3" 123 | return 124 | fi 125 | 126 | if { [ "$2" = "boolean" ] && [ "$param_value" != true ] && [ "$param_value" != false ]; } || 127 | { [ "$2" = "integer" ] && ! echo "$param_value" | grep -q -E '^[-+]?[1-9]+$'; } || 128 | { [ "$2" = "string" ] && [ "$param_value" = "" ]; }; then 129 | echo "Wrong paramater in $1 ($param_value). Using $1=$3" >&2 130 | param_value="$3" 131 | fi 132 | 133 | echo "$param_value" 134 | } 135 | 136 | has_timeshift() { 137 | command -v timeshift >/dev/null 2>&1 138 | } 139 | 140 | has_snapper() { 141 | command -v snapper >/dev/null 2>&1 142 | } 143 | 144 | get_timeshift_snapshots() { 145 | has_timeshift || return 1 146 | 147 | local _snapshot_date 148 | local _snapshot_info 149 | local _folder 150 | local _folder_name 151 | for _folder in "${timeshift_snapshots_path}"/*; do 152 | [ -e "$_folder" ] || continue 153 | _folder_name="${_folder##*/}" 154 | _snapshot_date="$(format_date "$(echo "$_folder_name" | sed 's/ .*//g; s/_/ /; s/-/:/4; s/-/:/3')")" # " Fix syntax highlighting 155 | _snapshot_info="$(cat "${_folder}/info.json")" 156 | if [ "${_snapshot_info%type*btrfs*}" != "$_snapshot_info" ]; then 157 | echo "$_snapshot_info" | grep "comments\|tags" | sort -r | 158 | sed 's/[[:space:]]*"\(comments\|tags\)"[[:space:]]*:[[:space:]]*"//g; s/",$//g;' | 159 | sed -e ':a;N;$!ba;' \ 160 | -e "s/\n/${sep}/g; s/ondemand[[:space:]]*/O/; s/boot[[:space:]]*/B/; \ 161 | s/hourly[[:space:]]*/H/; s/daily[[:space:]]*/D/; s/weekly[[:space:]]*/W/; s/monthly[[:space:]]*/M/;" -e \ 162 | "s|^|${timeshift_subfolder}/${_folder_name}/@${sep}$_snapshot_date${sep}|" 163 | fi 164 | done 165 | } 166 | 167 | get_snapper_snapshots() { 168 | has_snapper || return 1 169 | 170 | local _snapshots 171 | _snapshots="$(snapper --csvout --separator "$sep" list -a --columns number,subvolume,date,type,description | 172 | sed -e "1d; /${sep}current/d; /[[:digit:]]\+${sep}\/[^${sep}]/d; s|^\([[:digit:]]\+\)${sep}/|.snapshots/\1/snapshot|")" 173 | 174 | oldIFS="$IFS" 175 | IFS="$NL" 176 | 177 | for _snapshot in $_snapshots; do 178 | IFS="$oldIFS" 179 | local _subvolume 180 | local _date 181 | local _type 182 | local _description 183 | splitsep "$sep" "$_snapshot" _subvolume _date _type _description 184 | echo "${_subvolume}${sep}$(format_date "$_date")${sep}${_type}${sep}${_description}" 185 | done 186 | 187 | IFS="$oldIFS" 188 | } 189 | 190 | get_snapshot_info_for_subvol() { 191 | local _subvol="$1" 192 | local _snapshots="$2" 193 | local _found 194 | 195 | shift 2 196 | oldIFS="$IFS" 197 | IFS="$NL" 198 | 199 | for _snapshot in $_snapshots; do 200 | IFS="$oldIFS" 201 | unset "${@#}" 202 | splitsep "$sep" "$_snapshot" "${@#}" 203 | eval "_found=$""$1""" 204 | if [ "$_found" = "$_subvol" ]; then 205 | return 0 206 | fi 207 | done 208 | 209 | IFS="$oldIFS" 210 | unset "${@#}" 211 | 212 | return 1 213 | } 214 | 215 | format_date() { 216 | local _date="$1" 217 | date -d "$_date" "$date_format" 218 | } 219 | 220 | if [ ! "$(id -u)" -eq 0 ]; then 221 | echo "Please run as root" >&2 222 | exit 1 223 | fi 224 | 225 | if ! bootctl is-installed >/dev/null 2>&1; then 226 | echo "Systemd-boot is not installed on this system. Run bootctl install first" >&2 227 | exit 1 228 | fi 229 | 230 | root_part=$(get_root_partition) 231 | if [ -z "$root_part" ]; then 232 | echo "Could not find root device for /" >&2 233 | exit 1 234 | fi 235 | 236 | root_uuid=$(get_root_uuid) 237 | if [ -z "$root_uuid" ]; then 238 | echo "Could not find root UUID for /" >&2 239 | exit 1 240 | fi 241 | 242 | os_name=$(grep "^NAME=" /etc/os-release | sed 's/NAME=//; s/"//g') 243 | esp_path=$(bootctl -p) 244 | loader_entries_path="${esp_path}/loader/entries" 245 | { current_boot_entry="$(cat /sys/firmware/efi/efivars/LoaderEntrySelected-* | tr -dc '\40-\176')"; } 2>/dev/null 246 | if [ -z "$current_boot_entry" ]; then 247 | echo "The system is not booted with systemd-boot, exiting" >&2 248 | exit 1 249 | fi 250 | 251 | if strglob "$current_boot_entry" "-snapshot[0-9]*.conf"; then 252 | echo "The system is booted into a snapshot, it's not safe to update now, exiting" >&2 253 | exit 1 254 | fi 255 | 256 | for old_entry in "${loader_entries_path}"/*; do 257 | [ -r "$old_entry" ] || continue # entry not readable 258 | 259 | # check if it matches the old style file name formatting 260 | # remove it if it does 261 | if strglob "$old_entry" "*/${os_name}-snapshot[0-9]*.conf"; then 262 | [ "$VERBOSE" -eq 0 ] || echo "Removing loader entry $old_entry" 263 | rm -f "$old_entry" 264 | continue 265 | fi 266 | 267 | strglob "$old_entry" "*/*-[0-9]*snapshot.conf" || continue # doesn't match the filename formatting so it's not created by update-systemd-boot-snapshots, skipping 268 | 269 | old_entry_root_uuid="$(get_loader_entry_root_uuid "$old_entry")" 270 | [ -n "$old_entry_root_uuid" ] || continue # the UUID of the loader entry is empty, not valid 271 | 272 | [ "$old_entry_root_uuid" != "$root_uuid" ] || continue # the UUID of the root device doesn't match the one in the loader entry, so root filesystem is different 273 | 274 | [ "$VERBOSE" -eq 0 ] || echo "Removing loader entry $old_entry" 275 | rm -f "$old_entry" 276 | done 277 | 278 | if [ -n "$current_boot_entry" ]; then 279 | loader_entry_path="${loader_entries_path}/${current_boot_entry}" 280 | elif [ -f "${loader_entries_path}/${os_name}-current.conf" ]; then 281 | loader_entry_path="${loader_entries_path}/${os_name}-current.conf" 282 | elif [ -f "${loader_entries_path}/${os_name}-oldkern.conf" ]; then 283 | loader_entry_path="${loader_entries_path}/${os_name}-oldkern.conf" 284 | else 285 | echo "Could not find a efi boot entry to use as template, exiting" 286 | exit 1 287 | fi 288 | 289 | loader_entry_filename="${loader_entry_path##*/}" 290 | loader_entry_filename_base="${loader_entry_filename%.conf}" 291 | 292 | if [ -z "$loader_entry_path" ] || [ "$loader_entry_path" = "${loader_entry_path%.conf}" ] || [ ! -r "$loader_entry_path" ]; then 293 | echo "No suitable boot loader entry found. Tried: ${loader_entries_path}/${os_name}-oldkern.conf, ${loader_entries_path}/${os_name}-current.conf, /sys/firmware/efi/efivars/LoaderEntrySelected-*" >&2 294 | exit 1 295 | fi 296 | 297 | loader_entry_template="$(sed "s/subvol=[^ ,]*//; \ 298 | s/title.*/& /; \ 299 | /^options.*/ s/$//" <"$loader_entry_path")" 300 | 301 | echo "Creating snapshots based on loader entry: $loader_entry_path" 302 | 303 | show_snapshots_max=$(get_property "SHOW_SNAPSHOTS_MAX" "integer" "99999") 304 | use_overlayroot=$(get_property "USE_OVERLAYROOT" "boolean" "true") 305 | snapshot_period_type=$(get_property "SNAPSHOT_PERIOD_TYPE" "string" "all") 306 | if ! echo "$snapshot_period_type" | grep -q '^all$\|^ondemand$\|^boot$\|^hourly$\|^daily$\|^weekly$\|^monthly$'; then 307 | echo "Wrong paramater in SNAPSHOT_PERIOD_TYPE ($snapshot_period_type). Using SNAPSHOT_PERIOD_TYPE=all" >&2 308 | snapshot_period_type="all" 309 | fi 310 | 311 | options="" 312 | if [ "$use_overlayroot" != "false" ]; then 313 | if command -v update-initramfs >/dev/null 2>&1; then 314 | options=" overlayroot=tmpfs:recurse=1" 315 | elif command -v dracut >/dev/null 2>&1; then 316 | options=" rootovl" 317 | fi 318 | fi 319 | 320 | mount_dir=$(get_tmp_folder) 321 | 322 | if ! mount "$root_part" "$mount_dir" -o "ro" -t btrfs; then 323 | echo "Failed to mount $root_part on $mount_dir" 324 | exit 1 325 | fi 326 | 327 | btrfs_subvol_info="$(btrfs subvolume show /)" 328 | btrfs_parent_subvol="${btrfs_subvol_info%%"$NL"*}" 329 | options="$options parent_subvol=$btrfs_parent_subvol" 330 | #options="$options parent_subvol=auto" 331 | 332 | snapshots=$({ 333 | get_timeshift_snapshots & 334 | get_snapper_snapshots & 335 | wait 336 | }) 337 | 338 | btrfs_snapshots=$( 339 | btrfs subvolume list -s --sort=-rootid / | awk '{print $14}' | 340 | (btrfs subvolume list -sa --sort=-rootid / | awk '{print $14}' | 341 | (paste -d '' /dev/fd/3 /dev/fd/4) 4<&0) 3<&0 | tac 342 | ) 343 | 344 | i="1" 345 | for pair in $btrfs_snapshots; do 346 | btrfs_snapshot="${pair%%""*}" 347 | btrfs_snapshot_path="${pair##*""}" 348 | 349 | [ "$show_snapshots_max" != "all" ] && [ "$show_snapshots_max" -lt "$i" ] && break # maximum snapshot count reached 350 | 351 | [ -d "${mount_dir}/${btrfs_snapshot_path}/etc" ] || continue # this is not a root snapshot, so skip 352 | 353 | echo "$btrfs_snapshot_path" | grep -q "var/lib/docker" && continue 354 | 355 | [ "$btrfs_snapshot" = "$btrfs_parent_subvol" ] && continue # this is the current/main snapshot, so skip 356 | 357 | snapshot_title="$btrfs_snapshot" 358 | if has_timeshift || has_snapper; then 359 | date="", type="", description="" 360 | if get_snapshot_info_for_subvol "$btrfs_snapshot" "$snapshots" subvolume date type description; then 361 | snapshot_title="${date}${description:+ $description}${type:+ $type}" 362 | fi 363 | fi 364 | 365 | title_suffix="${snapshot_title}" 366 | snapshot_loader_entry="${loader_entries_path}/${loader_entry_filename_base}-${i}snapshot.conf" 367 | 368 | new="" 369 | str_replace "$loader_entry_template" "" "$title_suffix" new 370 | str_replace "$new" "" "subvol=${btrfs_snapshot_path}" new 371 | str_replace "$new" "" "$options" new 372 | [ "$VERBOSE" -eq 0 ] || echo "Adding loader entry $snapshot_loader_entry" 373 | echo "$new" >"$snapshot_loader_entry" 374 | 375 | # echo "Added $btrfs_snapshot with title: $snapshot_title" 376 | 377 | i=$((i + 1)) 378 | done 379 | 380 | echo "Added $((i - 1)) snapshots to the systemd-boot loader" 381 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------