devenv: add templates

7 files changed, 120 insertions, 3 deletions

diff --git a/flake.lock b/flake.lock
index 9f6e9db..7f0b1ab 100644
--- a/flake.lock
+++ b/flake.lock
@@ -136,11 +136,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1692808169,
-        "narHash": "sha256-x9Opq06rIiwdwGeK2Ykj69dNc2IvUH1fY55Wm7atwrE=",
+        "lastModified": 1693028636,
+        "narHash": "sha256-WOG42JO/yyvgYK3jQktDEy2qtZI7R+s3Lo4Y9gBr6XM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9201b5ff357e781bf014d0330d18555695df7ba8",
+        "rev": "e61ea96d43505ba0d2c066134eb9d67cadfddce7",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index d893fb8..6226ca7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,6 +4,11 @@
     inputs.nixpkgs.url = "nixpkgs";
   };
 
+  nixConfig = {
+    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
+    extra-trusted-substituters = "https://devenv.cachix.org";
+  };
+
   outputs = {
     self,
     nur,
@@ -21,6 +26,25 @@
         nixosModules.personal = import ./modules/nixos;
         homeModules.personal = import ./modules/home-manager;
         overlays.personal = self.overlays.default;
+
+        lib = import ./lib;
+
+        templates = let
+          welcomeText = ''
+            # `.devenv` should be added to `.gitignore`
+            ```sh
+              echo .devenv >> .gitignore
+            ```
+          '';
+          mkDevenvTemplate = path: {
+            inherit welcomeText path;
+          };
+          devenv = mkDevenvTemplate ./templates/devenv/simple;
+          devenvModular = mkDevenvTemplate ./templates/devenv/flake-parts;
+        in {
+          inherit devenv devenvModular;
+          default = devenv;
+        };
       };
 
       perSystem = {
diff --git a/lib/default.nix b/lib/default.nix
new file mode 100644
index 0000000..40758eb
--- /dev/null
+++ b/lib/default.nix
@@ -0,0 +1,19 @@
+{
+  mkDevenv = {
+    devenv,
+    flake-parts,
+    my-nixpkgs,
+    ...
+  } @ inputs: config:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      imports = [devenv.flakeModule];
+      systems = ["x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
+      perSystem = {...} @ perSystemInputs: {
+        devenv.shells.default =
+          {
+            imports = [my-nixpkgs.devenvModules.personal];
+          }
+          // config perSystemInputs;
+      };
+    };
+}
diff --git a/templates/devenv/flake-parts/.envrc b/templates/devenv/flake-parts/.envrc
new file mode 100644
index 0000000..fd8affa
--- /dev/null
+++ b/templates/devenv/flake-parts/.envrc
@@ -0,0 +1,11 @@
+if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+fi
+
+nix_direnv_watch_file devenv.nix
+nix_direnv_watch_file devenv.lock
+nix_direnv_watch_file devenv.yaml
+if ! use flake . --impure
+then
+    echo "devenv could not be built. The devenv environment was not loaded. Make the necessary changes to devenv.nix and hit enter to try again." >&2
+fi
diff --git a/templates/devenv/flake-parts/flake.nix b/templates/devenv/flake-parts/flake.nix
new file mode 100644
index 0000000..656e6e1
--- /dev/null
+++ b/templates/devenv/flake-parts/flake.nix
@@ -0,0 +1,32 @@
+{
+  inputs = {
+    devenv.url = "github:cachix/devenv";
+    my-nixpkgs.url = "github.com:qaristote/my-nixpkgs";
+  };
+
+  nixConfig = {
+    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
+    extra-trusted-substituters = "https://devenv.cachix.org";
+  };
+
+  outputs = {
+    flake-parts,
+    my-nixpkgs,
+    ...
+  } @ inputs:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      imports = [
+        inputs.devenv.flakeModule
+      ];
+      systems = ["x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin"];
+      perSystem = {...}: {
+        devenv.shells.default = {
+          imports = [my-nixpkgs.devenvModules.personal];
+
+          ######################## PUT YOUR CONFIG HERE ########################
+          # for this flake
+          languages.nix.enable = true;
+        };
+      };
+    };
+}
diff --git a/templates/devenv/simple/.envrc b/templates/devenv/simple/.envrc
new file mode 100644
index 0000000..fd8affa
--- /dev/null
+++ b/templates/devenv/simple/.envrc
@@ -0,0 +1,11 @@
+if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
+    source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+fi
+
+nix_direnv_watch_file devenv.nix
+nix_direnv_watch_file devenv.lock
+nix_direnv_watch_file devenv.yaml
+if ! use flake . --impure
+then
+    echo "devenv could not be built. The devenv environment was not loaded. Make the necessary changes to devenv.nix and hit enter to try again." >&2
+fi
diff --git a/templates/devenv/simple/flake.nix b/templates/devenv/simple/flake.nix
new file mode 100644
index 0000000..010761d
--- /dev/null
+++ b/templates/devenv/simple/flake.nix
@@ -0,0 +1,20 @@
+{
+  inputs = {
+    devenv.url = "github:cachix/devenv";
+    my-nixpkgs.url = "github.com:qaristote/my-nixpkgs";
+  };
+
+  nixConfig = {
+    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
+    extra-trusted-substituters = "https://devenv.cachix.org";
+  };
+
+  outputs = {my-nixpkgs, ...} @ inputs:
+    my-nixpkgs.lib.mkDevenv inputs
+    # this function has the same arguments flake-parts' perSystem does:
+    # config, lib, pkgs, system, etc.
+    ({...}: {
+      # put your devenv configuration  here
+      languages.nix.enable = true;
+    });
+}