flake: use devenv instead of devshell

1 files changed, 40 insertions, 0 deletions

diff --git a/parts/devenv.nix b/parts/devenv.nix
new file mode 100644
index 0000000..6049afb
--- /dev/null
+++ b/parts/devenv.nix
@@ -0,0 +1,40 @@
+{
+  config,
+  lib,
+  pkgs,
+}:
+{
+  devenv.shells.default = {
+    # <https://devenv.sh/reference/options/>
+    packages = [ config.packages.default ];
+
+    enterShell =
+      let
+        commonJustfile = pkgs.writeTextFile {
+          name = "justfile";
+
+          text = lib.concatStringsSep "\n" (
+            lib.mapAttrsToList (_: feature: feature.outputs.justfile) config.just-flake.features
+          );
+        };
+      in
+      ''
+        # <https://github.com/srid/flake-root/blob/master/flake-module.nix#L30-L31>
+        export FLAKE_ROOT="''$(${lib.getExe config.flake-root.package})"
+
+        # <https://github.com/juspay/just-flake/blob/main/flake-module.nix#L55>
+        ln -sf ${builtins.toString commonJustfile} ./${config.just-flake.commonFileName}
+      '';
+
+    pre-commit = {
+      src = ./.;
+
+      hooks = {
+        deadnix.enable = true;
+        flake-checker.enable = true;
+        nixfmt-rfc-style.enable = true;
+        statix.enable = false;
+      };
+    };
+  };
+}