Adding a builder for non nix people

1 files changed, 49 insertions, 0 deletions

diff --git a/util/build.sh b/util/build.sh
new file mode 100755
index 0000000..e296cce
--- /dev/null
+++ b/util/build.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# --- Configuration: package name and version ---
+PKG_NAME="kel-lbm"
+PKG_VERSION="0.0.2"
+
+# --- Ensure we're in the Git root ---
+if ! GIT_ROOT=$(git rev-parse --show-toplevel 2>/dev/null); then
+    echo "Error: Not inside a git repository."
+    exit 1
+fi
+cd "$GIT_ROOT"
+
+# --- Ensure default.nix exists ---
+if [[ ! -f default.nix ]]; then
+    echo "Error: no default.nix in Git root ($GIT_ROOT)"
+    exit 1
+fi
+
+# --- Run build + packaging inside container ---
+podman run --rm -it \
+    -v "$GIT_ROOT":/workspace \
+    -w /workspace \
+    -e USER=nix \
+    -e PKG_NAME="$PKG_NAME" \
+    -e PKG_VERSION="$PKG_VERSION" \
+    docker.io/nixos/nix:latest \
+    nix-shell -p bash --run "
+        set -euo pipefail
+
+        # Build the derivation
+        nix-build default.nix --out-link result
+
+        # Install fpm if missing
+        if ! command -v fpm >/dev/null 2>&1; then
+            nix-shell -p rubyPackages.fpm --run 'true'
+        fi
+
+        # Create .deb package
+        nix-shell -p rubyPackages.fpm --run \"fpm -s dir -t deb -n \$PKG_NAME -v \$PKG_VERSION -C result --prefix /usr/local .\"
+
+        # Create .rpm package
+        nix-shell -p rubyPackages.fpm --run \"fpm -s dir -t rpm -n \$PKG_NAME -v \$PKG_VERSION -C result --prefix /usr/local .\"
+    "
+
+echo "✅ Build complete!"
+echo " - result -> $GIT_ROOT/result"
+echo " - ${PKG_NAME}_${PKG_VERSION}.deb and ${PKG_NAME}-${PKG_VERSION}.rpm are in $GIT_ROOT"