Update stm32 generated code and properly set up data dependency as lazy (#331)

* update stm32 generated code and properly set up data dependency as lazy
* ignore untracked files

Author: mattnite

.github/workflows/ci.yml

@@ -158,7 +158,6 @@ jobs:
 
   stm32-gen-check:
     name: Check that stm32 generated code is up to date
-    continue-on-error: true
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
@@ -168,11 +167,11 @@ jobs:
         with:
           version: ${{ env.ZIG_VERSION }}
       - name: Generate Code
-        run: zig build update
+        run: zig build -Dgenerate
         working-directory: port/stmicro/stm32
       - name: Check for code diffs
         run: |
-          if [[ $(git status --porcelain) ]]; then
+          if [[ $(git status --porcelain | grep -v '^??') ]]; then
             echo "Code differences detected:"
             git diff
             echo "Please commit or fix these changes to proceed."

port/stmicro/stm32/build.zig

@@ -48,28 +48,30 @@ pub fn init(dep: *std.Build.Dependency) Self {
 }
 
 pub fn build(b: *std.Build) !void {
-    const update = b.step("update", "Update chip definitions from embassy-rs/stm32-data-generated");
+    const generate = b.option(bool, "generate", "Generate chip definitions from embassy-rs/stm32-data-generated") orelse false;
 
-    const stm32_data_generated = b.lazyDependency("stm32-data-generated", .{}) orelse return;
+    if (generate) {
+        const stm32_data_generated = b.lazyDependency("stm32-data-generated", .{}) orelse return;
 
-    const generate_optimize = .ReleaseSafe;
-    const regz_dep = b.dependency("microzig/tools/regz", .{
-        .optimize = generate_optimize,
-    });
-    const regz = regz_dep.module("regz");
+        const generate_optimize = .ReleaseSafe;
+        const regz_dep = b.dependency("microzig/tools/regz", .{
+            .optimize = generate_optimize,
+        });
+        const regz = regz_dep.module("regz");
 
-    const generate = b.addExecutable(.{
-        .name = "generate",
-        .root_source_file = b.path("src/generate.zig"),
-        .target = b.host,
-        .optimize = generate_optimize,
-    });
-    generate.root_module.addImport("regz", regz);
+        const generate_exe = b.addExecutable(.{
+            .name = "generate",
+            .root_source_file = b.path("src/generate.zig"),
+            .target = b.host,
+            .optimize = generate_optimize,
+        });
+        generate_exe.root_module.addImport("regz", regz);
 
-    const generate_run = b.addRunArtifact(generate);
-    generate_run.max_stdio_size = std.math.maxInt(usize);
-    generate_run.addFileArg(stm32_data_generated.path("."));
-    update.dependOn(&generate_run.step);
-
-    _ = b.step("test", "Run platform agnostic unit tests");
+        const generate_run = b.addRunArtifact(generate_exe);
+        generate_run.max_stdio_size = std.math.maxInt(usize);
+        generate_run.addFileArg(stm32_data_generated.path("."));
+        b.getInstallStep().dependOn(&generate_run.step);
+    } else {
+        _ = b.step("test", "Run platform agnostic unit tests");
+    }
 }