From f6ff3579b77ae10f8f1c84fe70d7a14cccdeabe4 Mon Sep 17 00:00:00 2001
From: Arne Weiss <arne.weiss@udo.edu>
Date: Sun, 26 May 2024 16:33:15 +0200
Subject: [PATCH] test nix build

---
 .gitea/workflows/demo.yaml |  4 ++++
 .gitignore                 |  1 +
 default.nix                | 23 +++++++++++++++++++++++
 flake.lock                 | 26 ++++++++++++++++++++++++++
 flake.nix                  | 10 ++++++++++
 5 files changed, 64 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 default.nix
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index e29a7ee..4e4db08 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -5,6 +5,8 @@ on: [push]
 jobs:
   Explore-Gitea-Actions:
     runs-on: ubuntu-latest
+    container:
+      image: lnl7/nix:2.3.16
     steps:
       - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
@@ -13,6 +15,8 @@ jobs:
         uses: actions/checkout@v3
       - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
       - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+      - name: Build with Nix
+        run: nix build
       - name: List files in the repository
         run: |
           ls ${{ gitea.workspace }}
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b2be92b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+result
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..2610018
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, stress-ng, coreutils }:
+
+stdenv.mkDerivation {
+  name = "cpu-intensive-task";
+  src = ./.;
+
+  buildInputs = [ stress-ng coreutils ];
+
+  buildPhase = ''
+    echo "Starting CPU intensive task..."
+
+    # Utilize all CPU cores for 2 minutes
+    stress-ng --cpu 0 --timeout 120s
+
+    echo "Task completed!"
+  '';
+
+  installPhase = ''
+    mkdir -p $out
+    echo "Task completed!" > $out/result.txt
+  '';
+}
+
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..145f73a
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716733162,
+        "narHash": "sha256-nMR45AytYy7pLp4UEM8UAaHwg9yttMfhBKXEGbSUKfc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5997f570487284e8f6cb06a50ebfd33867e81a9f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..bdbc35f
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,10 @@
+{
+  description = "A simple Nix flake to utilize all CPU cores for a few minutes";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs";
+
+  outputs = { self, nixpkgs }: {
+    packages.x86_64-linux.default = nixpkgs.legacyPackages.x86_64-linux.callPackage ./default.nix {};
+  };
+}
+