v0.2.0: zwasm v0.2.0 hash update, comptime version string

- Update zwasm dependency hash for updated v0.2.0 release
- Version string now derived from build.zig.zon via build_options

Author: chaploud

build.zig

@@ -8,9 +8,12 @@ pub fn build(b: *std.Build) void {
     const profile_opcodes = b.option(bool, "profile-opcodes", "Enable opcode frequency profiling") orelse false;
     const profile_alloc = b.option(bool, "profile-alloc", "Enable allocation size profiling") orelse false;
 
+    const build_zon = @import("build.zig.zon");
+
     const options = b.addOptions();
     options.addOption(bool, "profile_opcodes", profile_opcodes);
     options.addOption(bool, "profile_alloc", profile_alloc);
+    options.addOption([]const u8, "version", build_zon.version);
     const options_module = options.createModule();
 
     // zwasm dependency (Wasm runtime library)

build.zig.zon

@@ -4,7 +4,7 @@
     .dependencies = .{
         .zwasm = .{
             .url = "https://github.com/clojurewasm/zwasm/archive/v0.2.0.tar.gz",
-            .hash = "zwasm-0.2.0-IBbzFwWdGQD-xHjh536a-04lal8Su_TaMzBy5hwn8bR0",
+            .hash = "zwasm-0.2.0-IBbzF4qdGQDY2MqbDOXjG3hsd8aEGaEpsSQndxRMtCmV",
         },
     },
     .fingerprint = 0x62a7be489d633543,

src/main.zig

@@ -37,15 +37,18 @@ const Form = @import("reader/form.zig").Form;
 const wasm_builtins = @import("wasm/builtins.zig");
 const deps_mod = @import("deps.zig");
 
+const build_options = @import("build_options");
+const version_string = "ClojureWasm v" ++ build_options.version ++ "\n";
+
 /// Magic trailer bytes appended to built binaries.
 const embed_magic = "CLJW";
 /// Trailer size: u64 payload_size (8) + magic (4) = 12 bytes.
 const embed_trailer_size = 12;
 
 fn printHelp() void {
     const stdout: std.fs.File = .{ .handle = std.posix.STDOUT_FILENO };
+    _ = stdout.write(version_string) catch {};
     _ = stdout.write(
-        \\ClojureWasm v0.2.0
         \\
         \\Usage:
         \\  cljw [options] [file.clj]
@@ -202,7 +205,7 @@ pub fn main() !void {
             return;
         } else if (std.mem.eql(u8, arg, "--version")) {
             const stdout: std.fs.File = .{ .handle = std.posix.STDOUT_FILENO };
-            _ = stdout.write("ClojureWasm v0.2.0\n") catch {};
+            _ = stdout.write(version_string) catch {};
             return;
         } else if (std.mem.eql(u8, arg, "--tree-walk")) {
             use_vm = false;
@@ -542,7 +545,7 @@ fn runRepl(allocator: Allocator, env: *Env, gc: *gc_mod.MarkSweepGc) void {
         return;
     }
 
-    _ = stdout.write("ClojureWasm v0.2.0\n") catch {};
+    _ = stdout.write(version_string) catch {};
 
     var editor = line_editor.LineEditor.init(allocator, env);
     defer editor.deinit();