123 lines
3.4 KiB
Nix
123 lines
3.4 KiB
Nix
# Fg42 - Emacs Editor for advance users
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#
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# Copyright (c) 2010-2024 Sameer Rahmani <lxsameer@gnu.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 2.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This is the home manager module that exposes FG42. It differs
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# from FG42 modules that are structurally the same but used in
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# different context
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# A list of default FG42 modules to build FG42 with.
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{ lib, config, pkgs, ... }:
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with lib;
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let
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generateBuildConfig = configs:
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let
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defineConfig = cs: name:
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let
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config = builtins.getAttr name cs;
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form = if config.const then "defconst" else "defvar";
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in
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''(${form} ${name} ${config.value} "${config.docs}")'';
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configsList = builtins.map (defineConfig configs) (builtins.attrNames configs);
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in
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pkgs.writeTextFile {
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name = "build-config";
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text = ''
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${builtins.concatStringsSep "\n" configsList}
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(provide 'fg42/build-config)
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'';
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executable = false;
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};
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buildConfig = generateBuildConfig (config.fg42.buildConfig);
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drv = pkgs.emacsPackages.trivialBuild rec {
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pname = "fg42-build-config";
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version = config.fg42.version;
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src = ./.;
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buildPhase = ''
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runHook preBuild
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LISPDIR=$out/share/emacs/site-lisp/fg42
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install -d $LISPDIR
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cp -v ${buildConfig} $LISPDIR/build-config.el
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emacs -L . --batch -f batch-byte-compile *.el
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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LISPDIR=$out/share/emacs/site-lisp/fg42/
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emacs --batch -l package --eval "(package-generate-autoloads \"${pname}\" \"$LISPDIR\")"
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runHook postInstall
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'';
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};
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in
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{
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options = {
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fg42.buildConfig = mkOption {
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type = types.attrsOf
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(types.submodule {
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options = {
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value = mkOption {
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type = types.str;
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default = "nil";
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description = ''
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The value should be quoted. For example the string "nil"
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means the actual nil in elisp and the string "\"foo\""
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means elisp string "foo".
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'';
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};
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docs = mkOption {
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type = types.str;
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description = "The docstring for the variable or constant (mandatory)";
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};
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const = mkOption {
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type = types.bool;
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default = false;
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description = "defvar vs defconst";
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};
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};
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});
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default = { };
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example = ''
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fg42.config = {
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"fg42/some-var" = {
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value = "foo";
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docs = "The docstring";
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const = false;
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};
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};
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'';
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description = ''
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An attrset of configuration variables and their values
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that should end up in `fg42/config` elisp module.
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'';
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};
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};
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config = {
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fg42.elispPackages = [ drv ];
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};
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}
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