template: add java project

Author: smoothprogrammer

flake.nix

@@ -21,7 +21,13 @@
             '';
             buildInputs = with pkgs; [
               editorconfig-checker
+
+              # go
               go
+
+              # java
+              jdk
+              maven
             ];
           };
         }
@@ -32,6 +38,10 @@
           path = ./template/go;
           description = "Setup Go Project";
         };
+        java = {
+          path = ./template/java;
+          description = "Setup Java Project";
+        };
       };
     };
 }

template/java/.editorconfig

@@ -0,0 +1,26 @@
+; https://editorconfig.org
+root = true
+
+; default configuration
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = unset
+
+[{*.nix,flake.lock}]
+indent_style = space
+indent_size = 2
+
+[*.{yml,yaml,xml}]
+indent_style = space
+indent_size = 2
+
+[*.md]
+indent_style = space
+indent_size = 2
+
+[*.java]
+indent_style = space
+indent_size = 4

template/java/.envrc

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

template/java/.github/workflows/main.yaml

@@ -0,0 +1,27 @@
+name: main
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+env:
+  CI_NIX_STORE: ~/nix
+  CI_NIX_FLAKE: .#default
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Nix
+        uses: cachix/install-nix-action@v26
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Cache Nix
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.CI_NIX_STORE }}
+          key: ${{ runner.os }}-nix-${{ hashFiles('flake.nix', 'flake.lock') }}
+      - name: Lint
+        run: |
+          nix --store ${{ env.CI_NIX_STORE }} \
+            develop ${{ env.CI_NIX_FLAKE }} --command \
+            editorconfig-checker && echo "ok"

template/java/README.md

@@ -0,0 +1 @@
+# Java Project

template/java/flake.lock

@@ -0,0 +1,31 @@
+{
+  description = "Java Project";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed;
+    in
+    {
+      devShells = forAllSystems (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        {
+          default = pkgs.mkShell {
+            name = "java-project";
+            shellHook = ''
+              git config pull.rebase true
+              ${pkgs.neo-cowsay}/bin/cowsay -f sage "Java Project"
+            '';
+            buildInputs = with pkgs; [
+              editorconfig-checker
+              jdk
+              maven
+            ];
+          };
+        }
+      );
+    };
+}