Add a mixin to install files instead of using home-manager.
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996cb27a89
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@ -72,6 +72,7 @@
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./roles/zfs
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./roles/zrepl
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./roles/zsh
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./util/install_files
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./util/unfree_polyfill
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];
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167
nix/configuration/util/install_files/default.nix
Normal file
167
nix/configuration/util/install_files/default.nix
Normal file
@ -0,0 +1,167 @@
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{
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config,
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lib,
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pkgs,
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home-manager,
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...
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}:
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let
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inherit (lib)
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attrNames
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filter
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flatten
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;
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makeFileOption =
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prefix:
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lib.mkOption {
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type = lib.types.attrsOf (
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lib.types.submodule (
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{ name, config, ... }:
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{
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options = {
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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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defaultText = "${prefix}.‹path›.enable";
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example = false;
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description = "Whether we want to install this file.";
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};
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method = lib.mkOption {
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type = lib.types.enum [
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"symlink"
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"overwrite"
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"initialize"
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# "bind_mount" TODO: for directories?
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];
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default = "symlink";
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defaultText = "${prefix}.‹path›.method";
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example = "overwrite";
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description = "The way in which the file should be installed.";
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};
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mode = lib.mkOption {
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type = lib.types.str;
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default = "0444";
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defaultText = "${prefix}.‹path›.mode";
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example = "0750";
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description = "The read, write, execute permission flags.";
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};
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source = lib.mkOption {
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type = lib.types.path;
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defaultText = "${prefix}.‹path›.source";
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example = ./files/foo.txt;
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description = "The source file to install into the destination.";
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};
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target = lib.mkOption {
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type = lib.types.str;
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defaultText = "${prefix}.‹path›.target";
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example = ".local/share/foo/bar.txt";
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description = "The path where the file should be written.";
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};
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};
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config = {
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target = lib.mkDefault name;
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};
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}
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)
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);
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defaultText = "${prefix}.‹path›";
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default = { };
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example = lib.literalExpression ''
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{
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".config/foo/bar.txt" = {
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source = ./files/bar.txt
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};
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}
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'';
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};
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in
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{
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imports = [ ];
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options.me.install = {
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user = lib.mkOption {
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type = lib.types.attrsOf (
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lib.types.submodule (
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{ name, config, ... }:
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{
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options = {
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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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defaultText = "me.install.user.‹username›.enable";
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example = false;
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description = "Whether we want to install files in this user's home directory.";
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};
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target_username = lib.mkOption {
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type = lib.types.str;
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defaultText = "me.install.file.‹username›.target_username";
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example = "root";
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description = "The username for the user whose home directory will contain the file.";
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};
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file = makeFileOption "me.install.user.‹username›.file";
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};
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config = {
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target_username = lib.mkDefault name;
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};
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}
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)
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);
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defaultText = "me.install.user.‹username›";
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default = { };
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# TODO: example
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};
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# TODO: Global option owned by root?
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# file = makeFileOption "me.install.file";
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};
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config =
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let
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cfg = config.me.install;
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active_install_users = filter (username: cfg.user."${username}".enable) (attrNames cfg.user);
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install_commands = flatten (
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builtins.map (
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username:
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let
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active_install_file_targets = filter (target: cfg.user."${username}".file."${target}".enable) (
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attrNames cfg.user."${username}".file
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);
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in
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builtins.map (
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target:
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let
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target_config = cfg.user."${username}".file."${target}";
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source = lib.strings.escapeShellArg "${target_config.source}";
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destination = lib.strings.escapeShellArg "${target_config.target}";
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mode = lib.strings.escapeShellArg "${target_config.mode}";
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escaped_username = lib.strings.escapeShellArg "${username}";
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in
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''
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$DRY_RUN_CMD install $VERBOSE_ARG -D --compare -o ${escaped_username} -m ${mode} ${source} ${destination}
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''
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) active_install_file_targets
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) active_install_users
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);
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in
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lib.mkMerge [
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(lib.mkIf (install_commands != [ ]) ({
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systemd.services.me-install-file = {
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enable = true;
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description = "me-install-file";
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wantedBy = [ "multi-user.target" ];
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wants = [ "multi-user.target" ];
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after = [ "multi-user.target" ];
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unitConfig.DefaultDependencies = "no";
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = "yes";
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};
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script = (lib.strings.concatStringsSep "\n" install_commands);
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};
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}))
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];
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}
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