From 6fb793d24ad2d1eb0695fc3ab807e611d03020a3 Mon Sep 17 00:00:00 2001
From: Gabriel Arazas <foo.dogsquared@gmail.com>
Date: Sun, 7 Aug 2022 13:31:06 +0800
Subject: [PATCH] programs/pop-launcher: create module

This is to easily install launcher plugins and scripts in NixOS. I don't
know if this is also possible on home-manager (which I think it could be
since it also has the capability to set files).
---
 .../home-manager/programs/pop-launcher.nix    | 75 +++++++++++++++++++
 modules/nixos/programs/pop-launcher.nix       | 75 +++++++++++++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 modules/home-manager/programs/pop-launcher.nix
 create mode 100644 modules/nixos/programs/pop-launcher.nix

diff --git a/modules/home-manager/programs/pop-launcher.nix b/modules/home-manager/programs/pop-launcher.nix
new file mode 100644
index 00000000..f479a238
--- /dev/null
+++ b/modules/home-manager/programs/pop-launcher.nix
@@ -0,0 +1,75 @@
+{ config, options, lib, pkgs, ... }:
+
+let
+  cfg = config.programs.pop-launcher;
+
+  # This assumes the package contains the built-in plugins being symlinked to
+  # the main binary with absolute paths. Most sensibly, the nixpkgs builder
+  # will rewrite symlinks relative to its output directory. Since we're putting
+  # them outside of its output directory, we'll have to stop it from doing
+  # that.
+  package = cfg.package.overrideAttrs (prev: {
+    dontRewriteSymlinks = true;
+  });
+
+  # Plugins and scripts are assumed to be packaged at
+  # `$out/share/pop-launcher`.
+  pluginsDir = pkgs.symlinkJoin {
+    name = "pop-launcher-plugins-system";
+    paths = builtins.map (p: "${p}/share/pop-launcher") (cfg.plugins ++ [ package ]);
+  };
+in
+{
+  options.programs.pop-launcher = {
+    enable = lib.mkOption {
+      description = ''
+        Whether to enable Pop launcher, a launcher service for application
+        launchers.
+
+        Take note you have to install an application launcher frontend to make
+        use of this such as <command>onagre</command> or
+        <command>cosmic-launcher</command>.
+      '';
+      type = lib.types.bool;
+      default = false;
+      example = true;
+    };
+
+    package = lib.mkOption {
+      type = lib.types.package;
+      description = ''
+        The package where <command>pop-launcher</command> binary and
+        built-in plugins are expected.
+      '';
+      default = pkgs.pop-launcher;
+    };
+
+    plugins = lib.mkOption {
+      type = lib.types.listOf lib.types.package;
+      description = ''
+        List of packages containing Pop launcher plugins and scripts to be
+        installed as system-wide plugins.
+      '';
+      default = [];
+      defaultText = "[]";
+      example = lib.literalExpression ''
+        with pkgs; [
+          pop-launcher-plugin-duckduckgo-bangs
+          pop-launcher-plugin-jetbrains
+        ];
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    # The local plugin path is hardcoded so we'll also do that instead of
+    # properly setting in `xdg.dataFile`.
+    home.file.".local/share/pop-launcher" = lib.mkIf (cfg.plugins != []) {
+      source = pluginsDir;
+    };
+
+    home.packages = with pkgs; [
+      pop-launcher
+    ];
+  };
+}
diff --git a/modules/nixos/programs/pop-launcher.nix b/modules/nixos/programs/pop-launcher.nix
new file mode 100644
index 00000000..62fd038a
--- /dev/null
+++ b/modules/nixos/programs/pop-launcher.nix
@@ -0,0 +1,75 @@
+{ config, options, lib, pkgs, ... }:
+
+let
+  cfg = config.programs.pop-launcher;
+
+  # This assumes the package contains the built-in plugins being symlinked to
+  # the main binary with absolute paths. Most sensibly, the nixpkgs builder
+  # will rewrite symlinks relative to its output directory. Since we're putting
+  # them outside of its output directory, we'll have to stop it from doing
+  # that.
+  package = cfg.package.overrideAttrs (prev: {
+    dontRewriteSymlinks = true;
+  });
+
+  # Plugins and scripts are assumed to be packaged at
+  # `$out/share/pop-launcher`.
+  pluginsDir = pkgs.symlinkJoin {
+    name = "pop-launcher-plugins-system";
+    paths = builtins.map (p: "${p}/share/pop-launcher") (cfg.plugins ++ [ package ]);
+  };
+in
+{
+  options.programs.pop-launcher = {
+    enable = lib.mkOption {
+      description = ''
+        Whether to enable Pop launcher, a launcher service for application
+        launchers.
+
+        Take note you have to install an application launcher frontend to make
+        use of this such as <command>onagre</command> or
+        <command>cosmic-launcher</command>.
+      '';
+      type = lib.types.bool;
+      default = false;
+      example = true;
+    };
+
+    package = lib.mkOption {
+      type = lib.types.package;
+      description = ''
+        The package where <command>pop-launcher</command> binary and
+        built-in plugins are expected.
+      '';
+      default = pkgs.pop-launcher;
+    };
+
+    plugins = lib.mkOption {
+      # Wait, why isn't this working? WHY IS THIS NOT WORKING?!
+      #type = with lib.types; listOf package;
+      type = lib.types.listOf lib.types.package;
+      description = ''
+        List of packages containing Pop launcher plugins and scripts to be
+        installed as system-wide plugins.
+      '';
+      default = [];
+      defaultText = "[]";
+      example = lib.literalExpression ''
+        with pkgs; [
+          pop-launcher-plugin-duckduckgo-bangs
+          pop-launcher-plugin-jetbrains
+        ];
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.etc.pop-launcher = lib.mkIf (cfg.plugins != []) {
+      source = pluginsDir;
+    };
+
+    environment.systemPackages = with pkgs; [
+      pop-launcher
+    ];
+  };
+}