From 9210f0871a234d2810613943bb9c2258957d79a0 Mon Sep 17 00:00:00 2001
From: Adrian Duke <adrian.duke@gmail.com>
Date: Wed, 8 Apr 2026 17:14:20 +0100
Subject: [PATCH] just: Introduce justfile with pre-push hook cmds

As part of migrating from `flake.nix` to a more universal task runner
that can manage git hooks too.
---
 justfile | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 justfile

diff --git a/justfile b/justfile
new file mode 100644
index 00000000..5e5d4245
--- /dev/null
+++ b/justfile
@@ -0,0 +1,26 @@
+default:
+    @just --list
+
+# Run pre-push checks
+pre-push: lint-rust
+    @echo "✅ pre-push passed"
+
+# Run Clippy lints
+lint-rust: (verify-tool "cargo")
+    @echo "Cargo clippy..."
+    @cargo clippy --workspace --all-targets --all-features -- --deny warnings
+
+# Check if required tools are in PATH.
+[private]
+verify-tool tool package_name="":
+    #!/usr/bin/env bash
+    set -e
+    if ! command -v {{tool}} >/dev/null 2>&1; then
+        PKG="{{package_name}}"
+        if [ -z "$PKG" ]; then
+            PKG="{{tool}}"
+        fi
+        echo "❌ Missing required tool: {{tool}}"
+        echo "💡 Use your systems package manager to install '$PKG'."
+        exit 1
+    fi