templates: add ocaml

flake.nix

@@ -182,5 +182,9 @@
         path = ./templates/mojo;
         description = "Perl MojoLicious template.";
       };
+      templates."ocaml" = {
+        path = ./templates/ocaml;
+        description = "OCaml template.";
+      };
     };
 }

templates/ocaml/.envrc

@@ -0,0 +1 @@
+use flake

templates/ocaml/.gitignore

@@ -0,0 +1,3 @@
+.direnv
+*.bak
+result

templates/ocaml/LICENSE

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2022 Aaron Bieber <aaron@bolddaemon.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */

templates/ocaml/flake.nix

@@ -0,0 +1,51 @@
+{
+  description = "thing: stuff and things";
+
+  inputs.nixpkgs.url = "nixpkgs/nixos-22.05";
+
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems =
+        [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+    in {
+      packages = forAllSystems (system:
+        let pkgs = nixpkgsFor.${system};
+        in {
+          thing = pkgs.stdenv.mkDerivation {
+            pname = "thing";
+            version = "v0.0.0";
+            src = ./.;
+            buildInputs = with pkgs;
+              [ ocaml opam ocamlformat pkg-config ]
+              ++ (with pkgs.ocamlPackages; [ dune_3 odoc ]);
+
+            buildPhase = ''
+              ocamlc -o thing thing.ml
+            '';
+
+            installPhase = ''
+              mkdir -p $out/bin
+              mv thing $out/bin
+            '';
+          };
+        });
+
+      defaultPackage = forAllSystems (system: self.packages.${system}.thing);
+      devShells = forAllSystems (system:
+        let pkgs = nixpkgsFor.${system};
+        in {
+          default = pkgs.mkShell {
+            shellHook = ''
+              PS1='\u@\h:\@; '
+              echo "OCaml `${pkgs.ocaml}/bin/ocaml --version`"
+            '';
+            nativeBuildInputs = with pkgs;
+              [ ocaml opam ocamlformat pkg-config ]
+              ++ (with pkgs.ocamlPackages; [ dune_3 odoc ]);
+          };
+        });
+    };
+}
+

templates/ocaml/thing.ml

@@ -0,0 +1,2 @@
+print_string "hello thing!\n";;
+