Add Zig implementation and build files

Co-authored-by: yne <5113053+yne@users.noreply.github.com>

Author: Copilot

.gitignore

@@ -0,0 +1,15 @@
+# Build artifacts
+vcd
+*.o
+*.exe
+
+# Zig build cache
+zig-cache/
+zig-out/
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~

Makefile

@@ -1,4 +1,6 @@
 TARGET?=vcd
 all: $(TARGET)
+$(TARGET):
+	zig build-exe vcd.zig -O ReleaseFast -femit-bin=$(TARGET)
 install: $(TARGET); install -v -D $< $(DESTDIR)/usr/bin/$<
-clean: ; $(RM) $(TARGET)
+clean: ; $(RM) $(TARGET) && $(RM) -rf zig-cache zig-out

README.md

@@ -46,11 +46,19 @@ Manually download install a [prebuilt binary](../../releases)
 
 ### From sources
 
+Requires [Zig](https://ziglang.org/) compiler (v0.11.0 or later).
+
 ```bash
 make
 sudo make install
 ```
 
+Or build directly with Zig:
+
+```bash
+zig build-exe vcd.zig -O ReleaseFast
+```
+
 ### From Package Manager
 
 Arch-based distribution:

build.zig

@@ -0,0 +1,25 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const exe = b.addExecutable(.{
+        .name = "vcd",
+        .root_source_file = b.path("vcd.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    b.installArtifact(exe);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+}