Update to Zig 0.15 (#17)

#### Problem

Zig 0.15 is out, but the package is still on 0.14.

#### Summary of changes

Now that the solana-zig compiler supports 0.15, update everything!

BREAKING CHANGES:
* since `using namespace` was removed, do the right thing and import
  into `root.zig`, so imports will need a full path, so `sol.PublicKey`
  should become `sol.public_key.PublicKey`
* update `callconv(.C)` -> `callconv(.c)`
* change `format` definition to match new writer API
* get format strings right: `"{}"` -> `"{f}"`
* update program-test to mollusk, update other deps

Author: joncinque

.github/workflows/main.yml

@@ -1,4 +1,4 @@
-name: Build library and test programs
+name: Main
 
 on:
   push:
@@ -9,7 +9,7 @@ on:
       - 'main'
 
 env:
-  SOLANA_ZIG_VERSION: v1.47.0
+  SOLANA_ZIG_VERSION: v1.52.0
   SOLANA_ZIG_DIR: solana-zig
 
 jobs:
@@ -66,7 +66,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@master
       with:
-        toolchain: 1.84.1
+        toolchain: 1.86.0
 
     # took the workaround from https://github.com/sfackler/rust-openssl/issues/2149
     - name: Set Perl environment variables

README.md

@@ -37,15 +37,15 @@ You can run the convenience script in this repo to download the compiler to
 1. Add this package to your project:
 
 ```console
-zig fetch --save https://github.com/joncinque/solana-program-sdk-zig/archive/refs/tags/v0.16.0.tar.gz
+zig fetch --save https://github.com/joncinque/solana-program-sdk-zig/archive/refs/tags/v0.17.0.tar.gz
 ```
 
 2. (Optional) if you want to generate a keypair during building, you'll also
 need to install base58 and clap:
 
 ```console
-zig fetch --save https://github.com/joncinque/base58-zig/archive/refs/tags/v0.14.0.tar.gz
-zig fetch --save https://github.com/Hejsil/zig-clap/archive/refs/tags/0.10.0.tar.gz
+zig fetch --save https://github.com/joncinque/base58-zig/archive/refs/tags/v0.15.0.tar.gz
+zig fetch --save https://github.com/Hejsil/zig-clap/archive/refs/tags/0.11.0.tar.gz
 ```
 
 3. In your build.zig, add the modules that you want one by one, or use the
@@ -64,13 +64,18 @@ pub fn build(b: *std.build.Builder) !void {
     const target = b.resolveTargetQuery(solana.sbf_target);
     // Choose the optimization. `.ReleaseFast` gives optimized CU usage
     const optimize = .ReleaseFast;
+    // Create a module for your program
+    const mod = b.addModule("my_program", .{
+        .root_source_file = b.path("src/root.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
     // Define your program as a shared library
-    const program = b.addSharedLibrary(.{
+    const program = b.addLibrary(.{
         .name = "program_name",
+        .linkage = .dynamic,
         // Give the root of your program, where the entrypoint is defined
-        .root_source_file = b.path("src/main.zig"),
-        .optimize = optimize,
-        .target = target,
+        .root_module = mod,
     });
     // Use the `buildProgram` helper to create the solana-sdk module, and link
     // the program properly.
@@ -86,7 +91,7 @@ pub fn build(b: *std.build.Builder) !void {
     // them with `zig build test` with this step included
     const test_step = b.step("test", "Run unit tests");
     const lib_unit_tests = b.addTest(.{
-        .root_source_file = b.path("src/main.zig"),
+        .root_module = mod,
     });
     lib_unit_tests.root_module.addImport("solana_program_sdk", solana_mod);
     const run_unit_tests = b.addRunArtifact(lib_unit_tests);
@@ -99,7 +104,7 @@ pub fn build(b: *std.build.Builder) !void {
 ```zig
 const solana = @import("solana_program_sdk");
 
-export fn entrypoint(_: [*]u8) callconv(.C) u64 {
+export fn entrypoint(_: [*]u8) callconv(.c) u64 {
     solana.print("Hello world!", .{});
     return 0;
 }

build.zig

@@ -5,10 +5,7 @@ pub fn build(b: *std.Build) void {
     const optimize = b.standardOptimizeOption(.{});
 
     // Export self as a module
-    const solana_mod = b.addModule("solana_program_sdk", .{ .root_source_file = b.path("src/root.zig") });
-
-    const lib = b.addStaticLibrary(.{
-        .name = "solana_program_sdk",
+    const solana_mod = b.addModule("solana_program_sdk", .{
         .root_source_file = b.path("src/root.zig"),
         .target = target,
         .optimize = optimize,
@@ -19,15 +16,10 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
     });
     const base58_mod = base58_dep.module("base58");
-    lib.root_module.addImport("base58", base58_mod);
     solana_mod.addImport("base58", base58_mod);
 
-    b.installArtifact(lib);
-
     const lib_unit_tests = b.addTest(.{
-        .root_source_file = b.path("src/root.zig"),
-        .target = target,
-        .optimize = optimize,
+        .root_module = solana_mod,
     });
 
     lib_unit_tests.root_module.addImport("base58", base58_mod);

build.zig.zon

@@ -1,8 +1,8 @@
 .{
     .fingerprint = 0xdc47aff950fd68c0,
     .name = .solana_program_sdk,
-    .version = "0.16.3",
-    .minimum_zig_version = "0.14.0",
+    .version = "0.17.0",
+    .minimum_zig_version = "0.15.0",
 
     // This field is optional.
     // Each dependency must either provide a `url` and `hash`, or a `path`.
@@ -11,8 +11,8 @@
     // internet connectivity.
     .dependencies = .{
         .base58 = .{
-            .url = "https://github.com/joncinque/base58-zig/archive/refs/tags/v0.14.0.tar.gz",
-            .hash = "base58-0.14.0-6-CZm81qAAD4JCRHgewcNh8FS0pmnk7-OmwUkosaFKvg",
+            .url = "https://github.com/joncinque/base58-zig/archive/refs/tags/v0.15.0.tar.gz",
+            .hash = "base58-0.15.0-6-CZmwVpAAAxqof6REya9G_XyHL1fTqUsAcsZ-J1IHMF",
         },
     },
     .paths = .{

install-solana-zig.sh

@@ -3,7 +3,7 @@
 if [[ -n $SOLANA_ZIG_VERSION ]]; then
   solana_zig_version="$SOLANA_ZIG_VERSION"
 else
-  solana_zig_version="v1.47.0"
+  solana_zig_version="v1.52.0"
 fi
 solana_zig_release_url="https://github.com/joncinque/solana-zig-bootstrap/releases/download/solana-$solana_zig_version"