mob.new: glob mob ios/*.swift in generated iOS build.zig

priv/templates/mob.new/ios/build.zig.eex

@@ -105,9 +105,19 @@ pub fn build(b: *std.Build) void {
     swift_run.addArg("-I");
     swift_run.addArg(b.fmt("{s}/ios", .{mob_dir}));
     swift_run.addArgs(&.{ "-parse-as-library", "-wmo" });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobViewModel.swift", .{mob_dir}) });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobRootView.swift", .{mob_dir}) });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobGpuView.swift", .{mob_dir}) });
+    // Glob all mob Swift sources so a newly-added file (e.g. MobGpuView.swift,
+    // referenced by MobRootView) compiles without editing this template.
+    {
+        const glob_io = b.graph.io;
+        var mob_ios = b.build_root.handle.openDir(glob_io, b.fmt("{s}/ios", .{mob_dir}), .{ .iterate = true }) catch @panic("mob ios dir not found");
+        defer mob_ios.close(glob_io);
+        var swift_entries = mob_ios.iterate();
+        while (swift_entries.next(glob_io) catch @panic("mob ios dir iterate failed")) |entry| {
+            if (entry.kind == .file and std.mem.endsWith(u8, entry.name, ".swift")) {
+                swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/{s}", .{ mob_dir, entry.name }) });
+            }
+        }
+    }
     if (project_swift_sources.len > 0) {
         var swift_it = std.mem.splitScalar(u8, project_swift_sources, ',');
         while (swift_it.next()) |source| {

priv/templates/mob.new/ios/build_device.zig.eex

@@ -93,9 +93,19 @@ pub fn build(b: *std.Build) void {
     swift_run.addArg("-I");
     swift_run.addArg(b.fmt("{s}/ios", .{mob_dir}));
     swift_run.addArgs(&.{ "-parse-as-library", "-wmo" });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobViewModel.swift", .{mob_dir}) });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobRootView.swift", .{mob_dir}) });
-    swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/MobGpuView.swift", .{mob_dir}) });
+    // Glob all mob Swift sources so a newly-added file (e.g. MobGpuView.swift,
+    // referenced by MobRootView) compiles without editing this template.
+    {
+        const glob_io = b.graph.io;
+        var mob_ios = b.build_root.handle.openDir(glob_io, b.fmt("{s}/ios", .{mob_dir}), .{ .iterate = true }) catch @panic("mob ios dir not found");
+        defer mob_ios.close(glob_io);
+        var swift_entries = mob_ios.iterate();
+        while (swift_entries.next(glob_io) catch @panic("mob ios dir iterate failed")) |entry| {
+            if (entry.kind == .file and std.mem.endsWith(u8, entry.name, ".swift")) {
+                swift_run.addFileArg(.{ .cwd_relative = b.fmt("{s}/ios/{s}", .{ mob_dir, entry.name }) });
+            }
+        }
+    }
     if (project_swift_sources.len > 0) {
         var swift_it = std.mem.splitScalar(u8, project_swift_sources, ',');
         while (swift_it.next()) |source| {

test/mob_new/project_generator_test.exs

@@ -1031,6 +1031,22 @@ defmodule MobNew.ProjectGeneratorTest do
         assert content =~ "std.mem.splitScalar(u8, project_swift_sources, ',')"
         assert content =~ "swift_run.addFileArg(.{ .cwd_relative = source });"
       end
+
+      test "#{@label} build.zig globs mob Swift sources (no hardcoded file list)",
+           %{tmp: tmp} do
+        {:ok, dir} = ProjectGenerator.generate("test_app", tmp)
+        content = File.read!(Path.join(dir, @path))
+
+        # mob Swift sources are globbed from $mob_dir/ios at build time so a
+        # newly-added file (e.g. MobGpuView.swift, referenced by MobRootView)
+        # compiles without a template edit — listing files by name is how a new
+        # mob Swift file broke iOS builds.
+        assert content =~ ~s|b.build_root.handle.openDir(glob_io, b.fmt("{s}/ios", .{mob_dir})|
+        assert content =~ ~s|std.mem.endsWith(u8, entry.name, ".swift")|
+
+        refute content =~ ~s|b.fmt("{s}/ios/MobGpuView.swift", .{mob_dir})|,
+               "#{@label} build.zig must glob ios/*.swift, not list mob Swift files by name"
+      end
     end
 
     # Regression: the Android jni build.zig must declare `tflite_static` as