122 lines
2.6 KiB
Nix
122 lines
2.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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# name of the program
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# -------------------
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program = "slack";
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tarBin = "${pkgs.gnutar}/bin/tar";
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# command that will be jailed
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# ---------------------------
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command = "${pkgs.slack}/bin/slack";
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desktopFile = let
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name = program;
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comment = "Chat Programm";
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in pkgs.writeTextFile {
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name = "${name}.desktop";
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destination = "/share/applications/${name}.desktop";
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text = ''
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[Desktop Entry]
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Categories=Application;Utility;
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Comment=${comment}
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Encoding=UTF-8
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Exec=${bin}/bin/${name}
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Icon=gnome-lockscreen
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Name=${name}
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Terminal=false
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Type=Application
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'';
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};
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# the script
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# ----------
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bin = let
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backupFile = "${cfg.homeBackup}.tar.lzma";
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rolloutFile = "${cfg.home}.tar.lzma";
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lockFile = "${cfg.home}-lock";
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in pkgs.writeShellScriptBin "${program}" ''
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# set -x
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if [[ ! -e ${lockFile} ]]
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then
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# rollout backup
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if [[ -e ${backupFile} ]]
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then
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cp ${backupFile} ${rolloutFile}
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sudo -u ${program} ${tarBin} xf ${rolloutFile} --directory ${cfg.home}
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rm ${rolloutFile}
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touch ${lockFile}
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fi
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fi
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sudo -u ${program} ${command}
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'';
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backupScript = pkgs.writeShellScriptBin "${program}-backup" ''
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sudo -u ${program} \
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${tarBin} \
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--exclude=.cache \
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--exclude=".config/**/*Cache*" \
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--exclude-cache-all \
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--exclude=Downloads \
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--create \
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--verbos \
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--lzma \
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--file ${cfg.home}.tar.lzma \
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--directory ${cfg.home} \
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.
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cp ${cfg.home}.tar.lzma ${cfg.homeBackup}.tar.lzma
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'';
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cfg = config.programs.custom.slack;
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in {
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options.programs.custom.slack = {
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enable = mkEnableOption "install slack";
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homeBackup = mkOption {
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type = with types; nullOr string;
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description = ''
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folder where to backup
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'';
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};
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# todo : make sure the folder /home/sudoers belongs to mainUser
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home = mkOption {
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type = with types; string;
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default = "/home/sudoers/slack";
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description = ''
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home folder of this
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'';
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};
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};
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config = mkIf cfg.enable {
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security.sudo.extraConfig = ''
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${config.users.users.mainUser.name} ALL=(${program}) NOPASSWD: ALL
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'';
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# create users
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users.users."${program}" = {
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home = cfg.home;
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createHome = true;
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# initialPassword = "${program}";
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shell = pkgs.bashInteractive;
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isNormalUser = true;
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group = "users";
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# enable video usage
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extraGroups = [ "video" "audio" ];
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};
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environment.systemPackages = [ bin backupScript desktopFile ];
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};
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}
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