Allow using in nix develop and use prompt to signal it

1 files changed, 54 insertions, 44 deletions

diff --git a/flake.nix b/flake.nix
index 64040fe..83c6d6a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,11 +1,20 @@
 {
   description = "Cynerd's shell configuration";
 
-  outputs = { self, nixpkgs }: {
+  outputs = { self, flake-utils, nixpkgs }: 
+  let
 
-    nixosModule = { config, lib, pkgs, ... }:
-    with lib;
-    let
+    loadrc = dir: ''
+      for sh in ${dir}/*; do
+          [ -r "$sh" ] && . "$sh"
+      done
+      '';
+    commonrc = loadrc ./shellrc.d;
+    desktoprc = loadrc ./shellrc-desktop.d;
+    bashrc = loadrc ./bashrc.d;
+    zshrc = loadrc ./zshrc.d;
+
+    packages = pkgs: rec {
       shellrc-completion = pkgs.stdenv.mkDerivation rec {
         name = "shellrc-completion";
         src = ./.;
@@ -18,56 +27,57 @@
             installShellCompletion --zsh --name "$${comp##*/}" "$comp"
           done
         '';
+        shellHook = commonrc + bashrc + ''
+          export _SHELLRC=develop
+          '';
       };
-    in {
+      default = shellrc-completion;
+    };
 
-      options = {
-        programs.shellrc = {
-          enable = mkOption {
-            type = types.bool;
-            default = true;
-            description = "If shellrc should be enabled.";
-          };
-          desktop = mkOption {
-            type = types.bool;
-            default = false;
-            description = "If shellrc's desktop specific files should be used.";
+  in {
+
+    overlays = {
+      shellrc = final: prev: packages prev;
+      default = self.overlay.shellrc;
+    };
+
+    nixosModules = {
+      shellrc = { config, lib, pkgs, ... }: with lib; {
+        options = {
+          programs.shellrc = {
+            enable = mkOption {
+              type = types.bool;
+              default = true;
+              description = "If shellrc should be enabled.";
+            };
+            desktop = mkOption {
+              type = types.bool;
+              default = false;
+              description = "If shellrc's desktop specific files should be used.";
+            };
           };
         };
-      };
 
-      config = mkIf config.programs.shellrc.enable {
-        environment.interactiveShellInit = ''
-            for sh in ${./shellrc.d}/*; do
-                [ -r "$sh" ] && . "$sh"
-            done
-          '' + optionalString config.programs.shellrc.desktop ''
-            for sh in ${./shellrc-desktop.d}/*; do
-                [ -r "$sh" ] && . "$sh"
-            done
-          '';
+        config = mkIf config.programs.shellrc.enable {
 
-        programs.bash.interactiveShellInit = ''
-            for sh in ${./bashrc.d}/*; do
-                [ -r "$sh" ] && . "$sh"
-            done
-          '';
-        programs.bash.promptInit = ""; # Disable default prompt as we have our own
+          environment.interactiveShellInit = commonrc + optionalString config.programs.shellrc.desktop desktoprc;
 
-        programs.zsh.interactiveShellInit = mkIf config.programs.zsh.enable ''
-            for sh in ${./zshrc.d}/*; do
-                [ -r "$sh" ] && . "$sh"
-            done
-          '';
-        programs.zsh.promptInit = ""; # Disable default prompt as we have our own
+          programs.bash.interactiveShellInit = bashrc;
+          programs.bash.promptInit = ""; # Disable default prompt as we have our own
 
-        environment.systemPackages = [
-          shellrc-completion
-        ];
+          programs.zsh.interactiveShellInit = mkIf config.programs.zsh.enable zshrc;
+          programs.zsh.promptInit = ""; # Disable default prompt as we have our own
 
-      };
+          nixpkgs.overlays = [ self.overlays.shellrc ];
+          environment.systemPackages = [ pkgs.shellrc-completion ];
 
+        };
+      };
+      default = self.nixosModules.shellrc;
     };
 
-  };
+  } // (flake-utils.lib.eachDefaultSystem (system: {
+    packages = packages nixpkgs.legacyPackages.${system};
+  }));
+
 }