regenerate cli to nimlang and add nix build

.github/workflows/ci.yml

@@ -0,0 +1,60 @@
+name: Build and Test Godon CLI
+
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Install Nix
+      uses: cachix/install-nix-action@v25
+      with:
+        nix_path: nixpkgs=channel:nixos-25.11
+        extra_nix_config: |
+          sandbox = false
+          sandbox-paths = /etc/ssl/certs/ca-bundle.crt
+          experimental-features = nix-command flakes
+
+    - name: Configure Nix daemon SSL certificates
+      run: |
+        # Find and symlink SSL certificates for Nix daemon
+        sudo mkdir -p /etc/ssl/certs
+        CERT_BUNDLE=$(find /nix/store -name "ca-bundle.crt" | head -1)
+        echo "Found certificate bundle: $CERT_BUNDLE"
+        sudo ln -sf "$CERT_BUNDLE" /etc/ssl/certs/ca-bundle.crt
+        sudo ln -sf "$CERT_BUNDLE" /etc/ssl/certs/ca-certificates.crt
+
+        # Set environment variables for this session
+        export SSL_CERT_FILE="/etc/ssl/certs/ca-bundle.crt"
+        export NIX_SSL_CERT_FILE="/etc/ssl/certs/ca-bundle.crt" 
+        export CURL_CA_BUNDLE="/etc/ssl/certs/ca-bundle.crt"
+
+        # Add to nix.conf for daemon
+        echo "ssl-cert-file = /etc/ssl/certs/ca-bundle.crt" | sudo tee -a /etc/nix/nix.conf
+
+        echo "SSL certificates configured for Nix daemon"
+
+    - name: Build with Nix
+      run: |
+        export SSL_CERT_FILE="/etc/ssl/certs/ca-bundle.crt"
+        export NIX_SSL_CERT_FILE="/etc/ssl/certs/ca-bundle.crt"
+        export CURL_CA_BUNDLE="/etc/ssl/certs/ca-bundle.crt"
+        nix --experimental-features "nix-command flakes" build --verbose
+
+    - name: Test binary
+      run: |
+        echo "Checking build output..."
+        echo "Result path:"
+        nix path-info .#default
+        echo "Contents of result directory:"
+        ls -la $(nix path-info .#default)/ || echo "result directory contents"
+        echo "Checking $out/bin directory:"
+        ls -la $(nix path-info .#default)/bin/ || echo "$out/bin not found"
+        echo "Testing compiled binary with direct path..."
+        $(nix path-info .#default)/bin/godon_cli --help

flake.nix

@@ -0,0 +1,91 @@
+{
+  description = "Godon CLI - Nim-based CLI for Godon API";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+
+        # Build using nimble following the godon-api pattern
+        godon-cli = { version ? "DEV_BUILD" }: pkgs.stdenv.mkDerivation {
+          pname = "godon-cli";
+          inherit version;
+          src = ./.;
+
+          nativeBuildInputs = with pkgs; [
+            cacert
+            nim2
+            nimble
+            git
+            openssl.dev
+          ];
+
+          env = {
+            SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
+            NIX_SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
+            CURL_CA_BUNDLE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
+          };
+
+          configurePhase = ''
+            export HOME=$TMPDIR
+          '';
+
+          buildPhase = ''
+            echo "Building godon-cli version: ${version}"
+
+            # Refresh package list and build
+            nimble refresh
+
+            # Build the CLI
+            mkdir -p bin
+            nim c --hints:on --path:src -d:release -d:VERSION="${version}" -o:bin/godon_cli src/godon_cli.nim || {
+              echo "Compilation failed"
+              exit 1
+            }
+
+            echo "Build completed successfully!"
+          '';
+
+          installPhase = ''
+            mkdir -p $out/bin
+
+            # Install the binary
+            cp bin/godon_cli $out/bin/godon_cli
+            chmod +x $out/bin/godon_cli
+          '';
+
+          meta = with pkgs.lib; {
+            description = "CLI for the Godon API";
+            license = licenses.agpl3Only;
+            platforms = platforms.all;
+          };
+        };
+
+      in {
+        packages.default = godon-cli { };
+        packages.godon-cli = godon-cli;
+
+        # Allow building with custom version
+        packages.godon-cli-custom = version: godon-cli { inherit version; };
+
+        # Development shell with Nim and build tools
+        devShells.default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            nim2
+            nimble
+            git
+          ];
+
+          shellHook = ''
+            echo "Godon CLI development environment"
+            echo "Nim: $(nim --version | head -n1)"
+            echo "Nimble: $(nimble --version | head -n1)"
+          '';
+        };
+      });
+}

godon_cli.nimble

@@ -0,0 +1,38 @@
+# Package information
+
+version       = "0.1.0"
+author        = "Matthias Tafelmeier"
+description   = "CLI for the Godon API"
+license       = "AGPL-3.0"
+
+# Dependencies
+
+requires "nim >= 2.0.0"
+
+# Task definitions
+
+task build, "Build the CLI":
+  exec "nim c -d:release -o:bin/godon_cli src/godon_cli.nim"
+
+task build_debug, "Build the CLI with debug symbols":
+  exec "nim c -g -o:bin/godon_cli src/godon_cli.nim"
+
+task clean, "Clean build artifacts":
+  exec "rm -rf bin"
+
+task test, "Run tests":
+  exec "nim c -r tests/test_all.nim"
+
+task docker_build, "Build Docker image":
+  exec "docker build -t godon-cli:latest ."
+
+task docker_run, "Run Docker image":
+  exec "docker run --rm -it godon-cli:latest --help"
+
+# Binary definition
+bin = @["godon_cli"]
+
+# Install script (when installed via nimble)
+installDirs = @["bin"]
+installFiles = @["bin/godon_cli"]
+installExt  = @[]