Basic setup for examples

build.zig

@@ -1,21 +1,35 @@
 const std = @import("std");
+const vkgen = @import("generator/generator.zig");
 const Builder = std.build.Builder;
+const FmtStep = std.build.FmtStep;
+
+pub fn generateVk(b: *Builder) []const u8 {
+    const spec = std.fs.cwd().readFileAlloc(b.allocator, "examples/vk.xml", std.math.maxInt(usize)) catch unreachable;
+    const output = std.fs.path.join(
+        b.allocator,
+        &[_][]const u8{b.cache_root, "vk.zig"},
+    ) catch unreachable;
+
+    const output_file = std.fs.cwd().createFile(output, .{}) catch unreachable;
+    defer output_file.close();
+    vkgen.generate(b.allocator, spec, output_file.writer()) catch unreachable;
+
+    return output;
+}
 
 pub fn build(b: *Builder) void {
-    const generator = b.addExecutable("vulkan-zig-gen", "generator/main.zig");
-    generator.setBuildMode(b.standardReleaseOptions());
-
     var test_step = b.step("test", "Run all the tests");
-    test_step.dependOn(&b.addTest("generator/main.zig").step);
+    test_step.dependOn(&b.addTest("generator/generator.zig").step);
 
-    const run_cmd = generator.run();
-    if (b.args) |args| {
-        run_cmd.addArgs(args);
-    }
+    const target = b.standardTargetOptions(.{});
+    const mode = b.standardReleaseOptions();
+    const exe = b.addExecutable("example", "examples/main.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.install();
 
-    const run_step = b.step("run", "");
-    run_step.dependOn(&run_cmd.step);
-
-    b.default_step.dependOn(&generator.step);
-    b.installArtifact(generator);
+    const vk_path = generateVk(b);
+    const fmt_step = b.addFmt(&[_][]const u8{vk_path});
+    exe.step.dependOn(&fmt_step.step);
+    exe.addPackagePath("vk", vk_path);
 }