initial config for juni
This commit is contained in:
RingOfStorms (Joshua Bell)
parent
a27c00c6ff
commit
3194f3de91
13 changed files with 1552 additions and 418 deletions
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@ -10,7 +10,6 @@ let
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bcacheImpermanenceBin = pkgs.writeShellScriptBin "bcache-impermanence" (
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builtins.readFile ./impermanence-tools.sh
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);
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in
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{
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options.impermanence.tools = {
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1529
hosts/juni/flake.lock
generated
Normal file
1529
hosts/juni/flake.lock
generated
Normal file
File diff suppressed because it is too large
Load diff
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@ -5,9 +5,12 @@
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nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
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nixos-hardware.url = "github:NixOS/nixos-hardware/master";
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impermanence.url = "github:nix-community/impermanence";
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# Use relative to get current version for testin
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# inputs.common.url = "path:../../flakes/common";
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inputs.common.url = "git+https://git.joshuabell.xyz/ringofstorms/dotfiles?dir=flakes/common";
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# common.url = "path:../../flakes/common";
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common.url = "git+https://git.joshuabell.xyz/ringofstorms/dotfiles?dir=flakes/common";
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# secrets.url = "path:../../flakes/secrets";
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secrets.url = "git+https://git.joshuabell.xyz/ringofstorms/dotfiles?dir=flakes/secrets";
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# flatpaks.url = "path:../../flakes/flatpaks";
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@ -40,6 +43,8 @@
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"${configuration_name}" = (
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lib.nixosSystem {
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modules = [
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inputs.nixos-hardware.nixosModules.framework-12-13th-gen-intel
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inputs.impermanence.nixosModules.impermanence
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({
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nixpkgs.overlays = [
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(final: prev: {
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@ -55,10 +60,11 @@
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({
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ringofstorms.dePlasma = {
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enable = true;
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gpu.amd.enable = true;
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gpu.intel.enable = true;
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sddm.autologinUser = "josh";
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};
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})
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inputs.common.nixosModules.jetbrains_font
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# secrets.nixosModules.default
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inputs.ros_neovim.nixosModules.default
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@ -69,17 +75,16 @@
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inputs.flatpaks.nixosModules.default
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inputs.common.nixosModules.boot_systemd
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inputs.common.nixosModules.essentials
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inputs.common.nixosModules.git
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inputs.common.nixosModules.tmux
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inputs.common.nixosModules.boot_systemd
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inputs.common.nixosModules.hardening
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inputs.common.nixosModules.jetbrains_font
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inputs.common.nixosModules.nix_options
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# inputs.common.nixosModules.tailnet
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inputs.common.nixosModules.timezone_auto
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inputs.common.nixosModules.tty_caps_esc
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inputs.common.nixosModules.zsh
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# inputs.common.nixosModules.tailnet
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# beszel.nixosModules.agent
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# ({
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@ -89,8 +94,10 @@
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# }
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# )
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./configuration.nix
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./hardware-configuration.nix
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./hardware-mounts.nix
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./impermanence-tools.nix
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(import ./impermanence.nix { inherit primaryUser; })
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(
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{ config, pkgs, ... }:
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rec {
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@ -112,10 +119,10 @@
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inputs.common.homeManagerModules.kitty
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inputs.common.homeManagerModules.git
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inputs.common.homeManagerModules.postgres_cli_options
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inputs.common.homeManagerModules.ssh
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inputs.common.homeManagerModules.starship
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inputs.common.homeManagerModules.zoxide
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inputs.common.homeManagerModules.zsh
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# inputs.common.homeManagerModules.ssh
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(
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{ ... }:
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{
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25
hosts/juni/hardware-configuration.nix
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25
hosts/juni/hardware-configuration.nix
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@ -0,0 +1,25 @@
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{
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config,
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lib,
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modulesPath,
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...
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}:
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{
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imports = [
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(modulesPath + "/installer/scan/not-detected.nix")
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];
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boot.initrd.availableKernelModules = [
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"xhci_pci"
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"nvme"
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"usbhid"
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"usb_storage"
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"sd_mod"
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];
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boot.initrd.kernelModules = [ ];
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boot.kernelModules = [ "kvm-intel" ];
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boot.extraModulePackages = [ ];
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nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
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hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
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}
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253
hosts/juni/hardware-mounts.nix
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253
hosts/juni/hardware-mounts.nix
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@ -0,0 +1,253 @@
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{
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config,
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utils,
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pkgs,
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lib,
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...
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}:
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let
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BOOT = "/dev/disk/by-uuid/F5C0-5585";
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PRIMARY = "/dev/disk/by-uuid/3bfd6e57-5e0f-4742-99e3-e69891ae2431";
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SWAP = "/dev/disk/by-uuid/ad0311e2-7eb1-47af-bc4b-6311968cbccf";
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USB_KEY = null;
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IMPERMANENCE = true;
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primaryDeviceUnit = "${utils.escapeSystemdPath PRIMARY}.device";
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in
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lib.mkMerge [
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# Main filesystems
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{
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# BOOT
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fileSystems."/boot" = {
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device = BOOT;
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fsType = "vfat";
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options = [
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"fmask=0077"
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"dmask=0077"
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];
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};
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# PRIMARY
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fileSystems."/" = {
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device = PRIMARY;
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fsType = "bcachefs";
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options = [
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"X-mount.subdir=@root"
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];
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};
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fileSystems."/nix" = {
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device = PRIMARY;
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fsType = "bcachefs";
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options = [
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"X-mount.mkdir"
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"X-mount.subdir=@nix"
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"relatime"
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];
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};
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fileSystems."/.snapshots" = {
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device = PRIMARY;
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fsType = "bcachefs";
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options = [
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"X-mount.mkdir"
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"X-mount.subdir=@snapshots"
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"relatime"
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];
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};
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fileSystems."/persist" = lib.mkIf IMPERMANENCE {
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device = PRIMARY;
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fsType = "bcachefs";
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options = [
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"X-mount.mkdir"
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"X-mount.subdir=@persist"
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];
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neededForBoot = true; # NOTE for impermanence only
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};
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}
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(lib.mkIf (SWAP != null) { swapDevices = [ { device = SWAP; } ]; })
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# Disable bcachefs built in password prompts for all mounts (which asks for every single subdir mount above
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(
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let
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disableFs = fs: {
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name = "unlock-bcachefs-${utils.escapeSystemdPath fs.mountPoint}";
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value = {
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enable = false;
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};
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};
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in
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{
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boot.initrd.systemd.enable = true;
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systemd.services =
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let
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isSystemdNonBootBcache = fs: (fs.fsType == "bcachefs") && (!utils.fsNeededForBoot fs);
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bcacheNonBoots = lib.filterAttrs (k: fs: isSystemdNonBootBcache fs) config.fileSystems;
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in
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(lib.mapAttrs' (k: disableFs) bcacheNonBoots);
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boot.initrd.systemd.services =
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let
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isSystemdBootBcache = fs: (fs.fsType == "bcachefs") && (utils.fsNeededForBoot fs);
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bcacheBoots = lib.filterAttrs (k: fs: isSystemdBootBcache fs) config.fileSystems;
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in
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(lib.mapAttrs' (k: disableFs) bcacheBoots);
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}
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)
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{
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# Impermanence fix for working with custom unlock and reset with root bcache
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boot.initrd.systemd.services.create-needed-for-boot-dirs = {
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after = [
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"unlock-bcachefs-custom.service"
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"bcachefs-reset-root.service"
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];
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requires = [
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"unlock-bcachefs-custom.service"
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"bcachefs-reset-root.service"
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];
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serviceConfig.KeyringMode = "shared";
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};
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}
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# Bcachefs auto decryption
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(lib.mkIf (USB_KEY != null) {
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boot.supportedFilesystems = [
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"bcachefs"
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];
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boot.initrd.systemd.services.unlock-bcachefs-custom = {
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description = "Custom single bcachefs unlock for all subvolumes";
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wantedBy = [
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"persist.mount"
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"sysroot.mount"
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"initrd-root-fs.target"
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];
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before = [
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"persist.mount"
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"sysroot.mount"
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"initrd-root-fs.target"
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];
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after = [
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"initrd-root-device.target"
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];
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requires = [
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"initrd-root-device.target"
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primaryDeviceUnit
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];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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KeyringMode = lib.mkIf IMPERMANENCE "shared";
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};
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script = ''
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echo "Searching for USB Unlock Key..."
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KEY_FOUND=0
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# 4 second search
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for i in {1..40}; do
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if [ -e "${USB_KEY}" ]; then
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KEY_FOUND=1
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break
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fi
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sleep 0.1
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done
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if [ "$KEY_FOUND" -eq 1 ]; then
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echo "USB Key found at ${USB_KEY}. Attempting unlock..."
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mkdir -p /tmp/usb_key_mount
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# Mount read-only
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if mount -t bcachefs -o ro "${USB_KEY}" /tmp/usb_key_mount; then
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# Attempt unlock
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${pkgs.bcachefs-tools}/bin/bcachefs unlock -f /tmp/usb_key_mount/key "${PRIMARY}"
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UNLOCK_STATUS=$?
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# Cleanup
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umount /tmp/usb_key_mount
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if [ $UNLOCK_STATUS -eq 0 ]; then
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echo "Bcachefs unlock successful!"
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exit 0
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else
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echo "Failed to unlock with USB key."
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fi
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else
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echo "Failed to mount USB key device."
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fi
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else
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echo "USB Key not found within timeout."
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fi
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# 3. Fallback
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echo "Proceeding to standard mount (password prompt will appear if still locked)..."
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exit 0
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'';
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};
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})
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(lib.mkIf IMPERMANENCE {
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boot.initrd.systemd.services.bcachefs-reset-root = {
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description = "Reset bcachefs root subvolume before pivot";
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after = [
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"initrd-root-device.target"
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"cryptsetup.target"
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"unlock-bcachefs-custom.service"
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];
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requires = [
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primaryDeviceUnit
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"unlock-bcachefs-custom.service"
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];
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before = [
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"sysroot.mount"
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];
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wantedBy = [
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"initrd-root-fs.target"
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"sysroot.mount"
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"initrd.target"
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];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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KeyringMode = "shared";
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};
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script = ''
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cleanup() {
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if [[ ! -e /primary_tmp/@root ]]; then
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echo "Cleanup: Creating new @root"
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bcachefs subvolume create /primary_tmp/@root
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fi
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echo "Cleanup: Unmounting /primary_tmp"
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umount /primary_tmp || true
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}
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trap cleanup EXIT
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mkdir -p /primary_tmp
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echo "Mounting ${PRIMARY}..."
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if ! mount "${PRIMARY}" /primary_tmp; then
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echo "Mount failed. Cannot reset root."
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exit 1
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fi
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if [[ -e /primary_tmp/@root ]]; then
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mkdir -p /primary_tmp/@snapshots/old_roots
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# Use safe timestamp format (dashes instead of colons)
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timestamp=$(date "+%Y-%m-%d_%H-%M-%S")
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snap="/primary_tmp/@snapshots/old_roots/$timestamp"
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echo "Snapshotting @root to $snap"
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bcachefs subvolume snapshot /primary_tmp/@root "$snap"
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echo "Deleting current @root"
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bcachefs subvolume delete /primary_tmp/@root
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fi
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# Trap handles creating new root and unmount
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'';
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};
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})
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]
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78
hosts/juni/impermanence-tools.nix
Normal file
78
hosts/juni/impermanence-tools.nix
Normal file
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@ -0,0 +1,78 @@
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{
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config,
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lib,
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pkgs,
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...
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}:
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let
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cfg = config.impermanence.tools;
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bcacheImpermanenceBin = pkgs.writeShellScriptBin "bcache-impermanence" (
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builtins.readFile ./impermanence-tools.sh
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);
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in
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{
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options.impermanence.tools = {
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# enable = lib.mkEnableOption "bcachefs impermanence tools (GC + CLI)";
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snapshotRoot = lib.mkOption {
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type = lib.types.str;
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default = "/.snapshots/old_roots";
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description = "Root directory containing old root snapshots.";
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};
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gc = {
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enable = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "Enable garbage collection of old root snapshots.";
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};
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keepPerMonth = lib.mkOption {
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type = lib.types.int;
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default = 1;
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description = "Keep at least this many snapshots per calendar month (latest ones).";
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};
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keepRecentWeeks = lib.mkOption {
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type = lib.types.int;
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default = 4;
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description = "Keep at least one snapshot per ISO week within this many recent weeks.";
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};
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keepRecentCount = lib.mkOption {
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type = lib.types.int;
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default = 5;
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description = "Always keep at least this many most recent snapshots overall.";
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};
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};
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};
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config = {
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# config = lib.mkIf cfg.enable {
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environment.systemPackages = [
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bcacheImpermanenceBin
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pkgs.coreutils
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pkgs.findutils
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pkgs.diffutils
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pkgs.bcachefs-tools
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pkgs.fzf
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];
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systemd.services."bcache-impermanence-gc" = lib.mkIf cfg.gc.enable {
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description = "Garbage collect bcachefs impermanence snapshots";
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wantedBy = [ "multi-user.target" ];
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after = [ "multi-user.target" ];
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serviceConfig = {
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Type = "oneshot";
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};
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script = ''
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exec ${bcacheImpermanenceBin}/bin/bcache-impermanence gc \
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--snapshot-root ${cfg.snapshotRoot} \
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--keep-per-month ${toString cfg.gc.keepPerMonth} \
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--keep-recent-weeks ${toString cfg.gc.keepRecentWeeks} \
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--keep-recent-count ${toString cfg.gc.keepRecentCount}
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'';
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};
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||||
};
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}
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625
hosts/juni/impermanence-tools.sh
Normal file
625
hosts/juni/impermanence-tools.sh
Normal file
|
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@ -0,0 +1,625 @@
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#!/usr/bin/env bash
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set -eu
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SNAPSHOT_ROOT="/.snapshots/old_roots"
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KEEP_PER_MONTH=1
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KEEP_RECENT_WEEKS=4
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KEEP_RECENT_COUNT=5
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DRY_RUN=0
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DIFF_MAX_DEPTH=0
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usage() {
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cat <<EOF
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bcache-impermanence - tools for managing impermanence snapshots
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||||
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Usage:
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bcache-impermanence gc [--snapshot-root DIR] [--keep-per-month N] [--keep-recent-weeks N] [--keep-recent-count N] [--dry-run]
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bcache-impermanence ls [-nN] [--snapshot-root DIR]
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bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [--max-depth N] [PATH_PREFIX...]
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Subcommands:
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gc Run garbage collection on old root snapshots.
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ls List snapshots (newest first). With -nN prints N latest.
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diff Browse and diff files/dirs between current system and a snapshot.
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Options:
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--snapshot-root DIR Override snapshot root directory (default: /.snapshots/old_roots).
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--keep-per-month N For gc: keep at least N snapshots per calendar month.
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--keep-recent-weeks N For gc: keep at least one snapshot per ISO week within the last N weeks.
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--keep-recent-count N For gc: always keep at least N most recent snapshots overall.
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--dry-run For gc: show what would be deleted.
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--max-depth N For diff: limit scan depth under each prefix.
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||||
EOF
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||||
}
|
||||
|
||||
list_snapshots_desc() {
|
||||
if [ ! -d "$SNAPSHOT_ROOT" ]; then
|
||||
return 0
|
||||
fi
|
||||
for entry in "$SNAPSHOT_ROOT"/*; do
|
||||
[ -d "$entry" ] || continue
|
||||
basename "$entry"
|
||||
done | sort -r
|
||||
}
|
||||
|
||||
latest_snapshot_name() {
|
||||
list_snapshots_desc | head -n1
|
||||
}
|
||||
|
||||
cmd_ls() {
|
||||
local count=0
|
||||
while [ "$#" -gt 0 ]; do
|
||||
case "$1" in
|
||||
-n*)
|
||||
# Accept -nN where N is integer; default to 1 if empty.
|
||||
local n="${1#-n}"
|
||||
if [ -z "$n" ]; then
|
||||
n=1
|
||||
fi
|
||||
count="$n"
|
||||
;;
|
||||
--snapshot-root)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--snapshot-root requires a value" >&2; exit 1; }
|
||||
SNAPSHOT_ROOT="$1"
|
||||
;;
|
||||
--help|-h)
|
||||
echo "Usage: bcache-impermanence ls [-nN] [--snapshot-root DIR]" >&2
|
||||
exit 0
|
||||
;;
|
||||
*)
|
||||
echo "Unknown ls option: $1" >&2
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
local snaps
|
||||
snaps=$(list_snapshots_desc)
|
||||
|
||||
if [ -z "$snaps" ]; then
|
||||
echo "No snapshots found in $SNAPSHOT_ROOT" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if [ "$count" -gt 0 ] 2>/dev/null; then
|
||||
printf '%s\n' "$snaps" | head -n "$count"
|
||||
else
|
||||
printf '%s\n' "$snaps"
|
||||
fi
|
||||
}
|
||||
|
||||
build_keep_set() {
|
||||
# Prints snapshot names to keep, one per line, based on policies.
|
||||
local now
|
||||
now=$(date +%s)
|
||||
|
||||
local snaps
|
||||
snaps=$(list_snapshots_desc)
|
||||
|
||||
if [ -z "$snaps" ]; then
|
||||
return 0
|
||||
fi
|
||||
|
||||
local tmpdir
|
||||
tmpdir=$(mktemp -d)
|
||||
|
||||
# Always keep newest KEEP_RECENT_COUNT snapshots.
|
||||
if [ "$KEEP_RECENT_COUNT" -gt 0 ]; then
|
||||
printf '%s\n' "$snaps" | head -n "$KEEP_RECENT_COUNT" >"$tmpdir/keep_recent"
|
||||
fi
|
||||
|
||||
# Per-month: keep up to KEEP_PER_MONTH newest per month.
|
||||
if [ "$KEEP_PER_MONTH" -gt 0 ]; then
|
||||
while read -r snap; do
|
||||
[ -n "$snap" ] || continue
|
||||
local month
|
||||
month=${snap%_*} # YYYY-MM-DD
|
||||
month=${month%-*} # YYYY-MM
|
||||
local month_file="$tmpdir/month_$month"
|
||||
local count=0
|
||||
if [ -f "$month_file" ]; then
|
||||
count=$(wc -l <"$month_file")
|
||||
fi
|
||||
if [ "$count" -lt "$KEEP_PER_MONTH" ]; then
|
||||
echo "$snap" >>"$month_file"
|
||||
fi
|
||||
done <<EOF_SNAPS
|
||||
$snaps
|
||||
EOF_SNAPS
|
||||
fi
|
||||
|
||||
# Recent weeks: keep latest snapshot per week within last KEEP_RECENT_WEEKS weeks.
|
||||
if [ "$KEEP_RECENT_WEEKS" -gt 0 ]; then
|
||||
local max_age
|
||||
max_age=$(( KEEP_RECENT_WEEKS * 7 * 24 * 3600 ))
|
||||
while read -r snap; do
|
||||
[ -n "$snap" ] || continue
|
||||
local ts
|
||||
ts=$(date -d "${snap%_*} ${snap#*_}" +%s 2>/dev/null || true)
|
||||
[ -n "$ts" ] || continue
|
||||
local age
|
||||
age=$(( now - ts ))
|
||||
if [ "$age" -gt "$max_age" ]; then
|
||||
continue
|
||||
fi
|
||||
local week
|
||||
week=$(date -d "${snap%_*} ${snap#*_}" +"%G-%V" 2>/dev/null || true)
|
||||
[ -n "$week" ] || continue
|
||||
local week_file="$tmpdir/week_$week"
|
||||
if [ ! -f "$week_file" ]; then
|
||||
echo "$snap" >"$week_file"
|
||||
fi
|
||||
done <<EOF_SNAPS2
|
||||
$snaps
|
||||
EOF_SNAPS2
|
||||
fi
|
||||
|
||||
# Aggregate and dedupe.
|
||||
for f in "$tmpdir"/*; do
|
||||
[ -f "$f" ] || continue
|
||||
cat "$f"
|
||||
done | sort -u
|
||||
|
||||
rm -rf "$tmpdir"
|
||||
}
|
||||
|
||||
cmd_gc() {
|
||||
while [ "$#" -gt 0 ]; do
|
||||
case "$1" in
|
||||
--snapshot-root)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--snapshot-root requires a value" >&2; exit 1; }
|
||||
SNAPSHOT_ROOT="$1"
|
||||
;;
|
||||
--keep-per-month)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--keep-per-month requires a value" >&2; exit 1; }
|
||||
KEEP_PER_MONTH="$1"
|
||||
;;
|
||||
--keep-recent-weeks)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--keep-recent-weeks requires a value" >&2; exit 1; }
|
||||
KEEP_RECENT_WEEKS="$1"
|
||||
;;
|
||||
--keep-recent-count)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--keep-recent-count requires a value" >&2; exit 1; }
|
||||
KEEP_RECENT_COUNT="$1"
|
||||
;;
|
||||
--dry-run)
|
||||
DRY_RUN=1
|
||||
;;
|
||||
--help|-h)
|
||||
echo "Usage: bcache-impermanence gc [--snapshot-root DIR] [--keep-per-month N] [--keep-recent-weeks N] [--keep-recent-count N] [--dry-run]" >&2
|
||||
exit 0
|
||||
;;
|
||||
*)
|
||||
echo "Unknown gc option: $1" >&2
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
if [ ! -d "$SNAPSHOT_ROOT" ]; then
|
||||
echo "Snapshot root $SNAPSHOT_ROOT does not exist; nothing to do" >&2
|
||||
exit 0
|
||||
fi
|
||||
|
||||
local snaps
|
||||
snaps=$(list_snapshots_desc)
|
||||
if [ -z "$snaps" ]; then
|
||||
echo "No snapshots to process" >&2
|
||||
exit 0
|
||||
fi
|
||||
|
||||
local keep
|
||||
keep=$(build_keep_set)
|
||||
|
||||
local tmpkeep
|
||||
tmpkeep=$(mktemp -d)
|
||||
while read -r k; do
|
||||
[ -n "$k" ] || continue
|
||||
: >"$tmpkeep/$k"
|
||||
done <<EOF_KEEP
|
||||
$keep
|
||||
EOF_KEEP
|
||||
|
||||
local deleted=0
|
||||
while read -r snap; do
|
||||
[ -n "$snap" ] || continue
|
||||
if [ -f "$tmpkeep/$snap" ]; then
|
||||
continue
|
||||
fi
|
||||
local full
|
||||
full="$SNAPSHOT_ROOT/$snap"
|
||||
if [ "$DRY_RUN" -eq 1 ]; then
|
||||
echo "[dry-run] Would delete $full"
|
||||
else
|
||||
echo "Deleting snapshot $full"
|
||||
if ! bcachefs subvolume delete "$full"; then
|
||||
echo "Failed to delete $full" >&2
|
||||
else
|
||||
deleted=$((deleted + 1))
|
||||
fi
|
||||
fi
|
||||
done <<EOF_SNAPS
|
||||
$snaps
|
||||
EOF_SNAPS
|
||||
|
||||
rm -rf "$tmpkeep"
|
||||
echo "GC complete; deleted $deleted snapshots"
|
||||
}
|
||||
|
||||
browse_diff_tree() {
|
||||
local snapshot_name snapshot_dir diff_list initial_prefix
|
||||
snapshot_name="$1"
|
||||
snapshot_dir="$2"
|
||||
diff_list="$3"
|
||||
initial_prefix="${4-}"
|
||||
|
||||
local current_prefix=""
|
||||
if [ -n "$initial_prefix" ]; then
|
||||
current_prefix="$initial_prefix"
|
||||
fi
|
||||
|
||||
while :; do
|
||||
local children
|
||||
children=$(mktemp)
|
||||
local seen
|
||||
seen=$(mktemp)
|
||||
|
||||
# Optional parent entry
|
||||
if [ -n "$current_prefix" ]; then
|
||||
echo "dir .." >"$children"
|
||||
fi
|
||||
|
||||
# Build immediate children under current_prefix.
|
||||
while read -r st rel; do
|
||||
[ -n "$rel" ] || continue
|
||||
local sub
|
||||
if [ -n "$current_prefix" ]; then
|
||||
case "$rel" in
|
||||
"$current_prefix")
|
||||
# Exact match at this level; treat as leaf, not a separate child.
|
||||
continue
|
||||
;;
|
||||
"$current_prefix"/*)
|
||||
sub="${rel#"$current_prefix"/}"
|
||||
;;
|
||||
*)
|
||||
continue
|
||||
;;
|
||||
esac
|
||||
else
|
||||
sub="$rel"
|
||||
fi
|
||||
|
||||
[ -n "$sub" ] || continue
|
||||
|
||||
local child
|
||||
child="${sub%%/*}"
|
||||
local child_rel
|
||||
if [ -n "$current_prefix" ]; then
|
||||
child_rel="$current_prefix/$child"
|
||||
else
|
||||
child_rel="$child"
|
||||
fi
|
||||
|
||||
if grep -qx "$child_rel" "$seen" 2>/dev/null; then
|
||||
continue
|
||||
fi
|
||||
|
||||
echo "$st $child_rel" >>"$children"
|
||||
echo "$child_rel" >>"$seen"
|
||||
done <"$diff_list"
|
||||
|
||||
rm -f "$seen"
|
||||
|
||||
if [ ! -s "$children" ]; then
|
||||
echo "No further differences under ${current_prefix:-/}" >&2
|
||||
rm -f "$children"
|
||||
break
|
||||
fi
|
||||
|
||||
if ! command -v fzf >/dev/null 2>&1; then
|
||||
echo "fzf is required for diff browsing" >&2
|
||||
rm -f "$children"
|
||||
break
|
||||
fi
|
||||
|
||||
local preview_cmd
|
||||
preview_cmd='sel_rel=$(printf "%s\n" {} | cut -d" " -f2-)
|
||||
if [ "$sel_rel" = ".." ]; then
|
||||
echo "[UP] .."
|
||||
exit 0
|
||||
fi
|
||||
snap_dir="'"$snapshot_dir"'"
|
||||
a_path="$snap_dir/$sel_rel"
|
||||
b_path="/$sel_rel"
|
||||
|
||||
if [ ! -e "$a_path" ] && [ -e "$b_path" ]; then
|
||||
echo "[ADDED] /$sel_rel"; echo
|
||||
if [ -d "$b_path" ]; then
|
||||
(cd / && find "$sel_rel" -maxdepth 3 -print 2>/dev/null || true)
|
||||
else
|
||||
diff -u /dev/null "$b_path" 2>/dev/null || cat "$b_path" 2>/dev/null || true
|
||||
fi
|
||||
elif [ -e "$a_path" ] && [ ! -e "$b_path" ]; then
|
||||
echo "[REMOVED] /$sel_rel"; echo
|
||||
if [ -d "$a_path" ]; then
|
||||
(cd "$snap_dir" && find "$sel_rel" -maxdepth 3 -print 2>/dev/null || true)
|
||||
else
|
||||
diff -u "$a_path" /dev/null 2>/dev/null || cat "$a_path" 2>/dev/null || true
|
||||
fi
|
||||
else
|
||||
if [ -d "$a_path" ] && [ -d "$b_path" ]; then
|
||||
echo "[CHANGED DIR] /$sel_rel"; echo
|
||||
diff -ru "$a_path" "$b_path" 2>/dev/null || true
|
||||
else
|
||||
echo "[CHANGED] /$sel_rel"; echo
|
||||
diff -u "$a_path" "$b_path" 2>/dev/null || true
|
||||
fi
|
||||
fi
|
||||
'
|
||||
|
||||
local selection
|
||||
selection=$(FZF_DEFAULT_OPTS="${FZF_DEFAULT_OPTS:-} --ansi --preview-window=right:70%:wrap" \
|
||||
fzf --prompt="[bcache-impermanence diff ${current_prefix:-/}] " \
|
||||
--preview "$preview_cmd" <"$children") || {
|
||||
rm -f "$children"
|
||||
break
|
||||
}
|
||||
|
||||
rm -f "$children"
|
||||
|
||||
local sel_rel
|
||||
sel_rel=$(printf "%s\n" "$selection" | cut -d" " -f2-)
|
||||
|
||||
if [ "$sel_rel" = ".." ]; then
|
||||
if [ -z "$current_prefix" ]; then
|
||||
break
|
||||
fi
|
||||
if printf "%s" "$current_prefix" | grep -q '/'; then
|
||||
current_prefix="${current_prefix%/*}"
|
||||
else
|
||||
current_prefix=""
|
||||
fi
|
||||
continue
|
||||
fi
|
||||
|
||||
# If this selection has descendants, drill down; otherwise treat as leaf and exit.
|
||||
if grep -q " $sel_rel/" "$diff_list"; then
|
||||
current_prefix="$sel_rel"
|
||||
continue
|
||||
else
|
||||
# Leaf: user already saw diff in preview; exit.
|
||||
break
|
||||
fi
|
||||
done
|
||||
}
|
||||
|
||||
cmd_diff() {
|
||||
local snapshot_name=""
|
||||
|
||||
while [ "$#" -gt 0 ]; do
|
||||
case "$1" in
|
||||
-s)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "-s requires a snapshot name" >&2; exit 1; }
|
||||
snapshot_name="$1"
|
||||
;;
|
||||
--snapshot-root)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--snapshot-root requires a value" >&2; exit 1; }
|
||||
SNAPSHOT_ROOT="$1"
|
||||
;;
|
||||
--max-depth)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || { echo "--max-depth requires a value" >&2; exit 1; }
|
||||
DIFF_MAX_DEPTH="$1"
|
||||
;;
|
||||
--help|-h)
|
||||
echo "Usage: bcache-impermanence diff [-s SNAPSHOT] [--snapshot-root DIR] [--max-depth N] [PATH_PREFIX...]" >&2
|
||||
exit 0
|
||||
;;
|
||||
--*)
|
||||
echo "Unknown diff option: $1" >&2
|
||||
exit 1
|
||||
;;
|
||||
*)
|
||||
break
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
if [ -z "$snapshot_name" ]; then
|
||||
snapshot_name=$(latest_snapshot_name || true)
|
||||
fi
|
||||
|
||||
if [ -z "$snapshot_name" ]; then
|
||||
echo "No snapshots found for diff" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
local snapshot_dir
|
||||
snapshot_dir="$SNAPSHOT_ROOT/$snapshot_name"
|
||||
|
||||
if [ ! -d "$snapshot_dir" ]; then
|
||||
echo "Snapshot directory $snapshot_dir does not exist" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if [ "$#" -eq 0 ]; then
|
||||
set -- /
|
||||
fi
|
||||
|
||||
if ! command -v fzf >/dev/null 2>&1; then
|
||||
echo "fzf is required for diff browsing" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Build list of bind mounts backed by /persist so we can filter them out.
|
||||
local persist_mounts
|
||||
persist_mounts=$(awk '$2 ~ "^/persist(/|$)" { print $2 }' /proc/self/mounts || true)
|
||||
|
||||
is_persist_backed() {
|
||||
local p
|
||||
p="$1"
|
||||
if [ -z "$p" ]; then
|
||||
return 1
|
||||
fi
|
||||
if [ -z "$persist_mounts" ]; then
|
||||
return 1
|
||||
fi
|
||||
local m
|
||||
for m in $persist_mounts; do
|
||||
case "$p" in
|
||||
"$m"|"$m"/*) return 0 ;;
|
||||
esac
|
||||
done
|
||||
return 1
|
||||
}
|
||||
|
||||
local prefixes
|
||||
prefixes=("$@")
|
||||
|
||||
local tmp
|
||||
tmp=$(mktemp)
|
||||
|
||||
for prefix in "${prefixes[@]}"; do
|
||||
case "$prefix" in
|
||||
/*) : ;;
|
||||
*)
|
||||
echo "Path prefix must be absolute: $prefix" >&2
|
||||
continue
|
||||
;;
|
||||
esac
|
||||
|
||||
# Skip prefixes that are themselves backed by /persist.
|
||||
if is_persist_backed "$prefix"; then
|
||||
continue
|
||||
fi
|
||||
|
||||
local rel
|
||||
rel="${prefix#/}"
|
||||
[ -z "$rel" ] && rel="."
|
||||
|
||||
if [ "$DIFF_MAX_DEPTH" -gt 0 ] 2>/dev/null; then
|
||||
(
|
||||
cd "$snapshot_dir" && find "$rel" -mindepth 1 -maxdepth "$DIFF_MAX_DEPTH" -print 2>/dev/null || true
|
||||
) | sed "s/^/A /" >>"$tmp"
|
||||
|
||||
(
|
||||
cd / && find "$rel" -mindepth 1 -maxdepth "$DIFF_MAX_DEPTH" -print 2>/dev/null || true
|
||||
) | sed "s/^/B /" >>"$tmp"
|
||||
else
|
||||
(
|
||||
cd "$snapshot_dir" && find "$rel" -mindepth 1 -print 2>/dev/null || true
|
||||
) | sed "s/^/A /" >>"$tmp"
|
||||
|
||||
(
|
||||
cd / && find "$rel" -mindepth 1 -print 2>/dev/null || true
|
||||
) | sed "s/^/B /" >>"$tmp"
|
||||
fi
|
||||
done
|
||||
|
||||
if [ ! -s "$tmp" ]; then
|
||||
echo "No files found under specified prefixes" >&2
|
||||
rm -f "$tmp"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
local paths
|
||||
paths=$(cut -d' ' -f2- "$tmp" | sort -u)
|
||||
|
||||
local diff_list
|
||||
diff_list=$(mktemp)
|
||||
|
||||
while read -r rel; do
|
||||
[ -n "$rel" ] || continue
|
||||
local a_path b_path
|
||||
a_path="$snapshot_dir/$rel"
|
||||
b_path="/$rel"
|
||||
|
||||
# Skip paths that reside under a /persist-backed mount in the live system.
|
||||
if is_persist_backed "$b_path"; then
|
||||
continue
|
||||
fi
|
||||
|
||||
local status
|
||||
if [ ! -e "$a_path" ] && [ -e "$b_path" ]; then
|
||||
status="added"
|
||||
elif [ -e "$a_path" ] && [ ! -e "$b_path" ]; then
|
||||
status="removed"
|
||||
else
|
||||
if [ -d "$a_path" ] && [ -d "$b_path" ]; then
|
||||
if ! diff -rq "$a_path" "$b_path" >/dev/null 2>&1; then
|
||||
status="changed-dir"
|
||||
else
|
||||
continue
|
||||
fi
|
||||
else
|
||||
if ! diff -q "$a_path" "$b_path" >/dev/null 2>/dev/null; then
|
||||
status="changed"
|
||||
else
|
||||
continue
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
echo "$status $rel" >>"$diff_list"
|
||||
done <<<"$paths"
|
||||
|
||||
rm -f "$tmp"
|
||||
|
||||
if [ ! -s "$diff_list" ]; then
|
||||
echo "No differences found between snapshot $snapshot_name and current system" >&2
|
||||
rm -f "$diff_list"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
local initial_prefix=""
|
||||
if [ "$#" -eq 1 ]; then
|
||||
initial_prefix="${1#/}"
|
||||
fi
|
||||
|
||||
browse_diff_tree "$snapshot_name" "$snapshot_dir" "$diff_list" "$initial_prefix"
|
||||
rm -f "$diff_list"
|
||||
}
|
||||
|
||||
main() {
|
||||
if [ "$#" -lt 1 ]; then
|
||||
usage
|
||||
exit 1
|
||||
fi
|
||||
|
||||
local cmd
|
||||
cmd="$1"
|
||||
shift || true
|
||||
|
||||
case "$cmd" in
|
||||
gc)
|
||||
cmd_gc "$@"
|
||||
;;
|
||||
ls)
|
||||
cmd_ls "$@"
|
||||
;;
|
||||
diff)
|
||||
cmd_diff "$@"
|
||||
;;
|
||||
--help|-h|help)
|
||||
usage
|
||||
;;
|
||||
*)
|
||||
echo "Unknown subcommand: $cmd" >&2
|
||||
usage
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
main "$@"
|
||||
52
hosts/juni/impermanence.nix
Normal file
52
hosts/juni/impermanence.nix
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
{ primaryUser }:
|
||||
{ ... }:
|
||||
{
|
||||
environment.persistence."/persist" = {
|
||||
enable = true;
|
||||
hideMounts = true;
|
||||
directories = [
|
||||
"/var/log"
|
||||
"/var/lib/nixos"
|
||||
"/var/lib/systemd/coredump"
|
||||
"/var/lib/systemd/timers"
|
||||
|
||||
"/etc/nixos"
|
||||
"/etc/ssh"
|
||||
|
||||
"/etc/NetworkManager/system-connections"
|
||||
"/var/lib/bluetooth"
|
||||
"/var/lib/NetworkManager"
|
||||
"/var/lib/iwd"
|
||||
"/var/lib/fail2ban"
|
||||
];
|
||||
files = [
|
||||
"/etc/machine-id"
|
||||
];
|
||||
users."${primaryUser}" = {
|
||||
directories = [
|
||||
".ssh"
|
||||
".gnupg"
|
||||
|
||||
"projects"
|
||||
".config/nixos-config"
|
||||
|
||||
".config/atuin"
|
||||
".local/share/atuin"
|
||||
|
||||
".local/share/zoxide"
|
||||
|
||||
# KDE
|
||||
".config/kdeconnect"
|
||||
|
||||
# Chrome
|
||||
".config/google-chrome"
|
||||
|
||||
# neovim ros_neovim
|
||||
".local/state/nvim_ringofstorms_helium"
|
||||
];
|
||||
files = [
|
||||
|
||||
];
|
||||
};
|
||||
};
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue