fix: re-establish pre-3.2.1 data copy_to_bin behavior

Author: gzm0

docs/rules.md

@@ -59,6 +59,7 @@ def ts_project(
         declaration_dir = None,
         out_dir = None,
         root_dir = None,
+        copy_data_to_bin = None,
         supports_workers = -1,
         **kwargs):
     """Compiles one TypeScript project using `tsc --project`.
@@ -240,6 +241,9 @@ def ts_project(
         ts_build_info_file: The user-specified value of `tsBuildInfoFile` from the tsconfig.
             Helps Bazel to predict the path where the .tsbuildinfo output is written.
 
+        copy_data_to_bin: When True, `data` files are copied to the Bazel output tree before being passed as inputs to runfiles.
+            Defaults to `transpiler != None` due to backwards compatiblity (see #716/ #411).
+
         supports_workers: Whether the "Persistent Worker" protocol is enabled.
             This uses a custom `tsc` compiler to make rebuilds faster.
             Note that this causes some known correctness bugs, see
@@ -421,6 +425,9 @@ def ts_project(
             "//conditions:default": False,
         })
 
+    if copy_data_to_bin == None:
+        copy_data_to_bin = transpiler != None
+
     ts_project_rule(
         name = name,
         srcs = srcs,
@@ -460,6 +467,7 @@ def ts_project(
         is_typescript_5_or_greater = is_typescript_5_or_greater,
         validate = validate,
         validator = validator,
+        copy_data_to_bin = copy_data_to_bin,
         **kwargs
     )
 

ts/defs.bzl

@@ -116,6 +116,10 @@ https://docs.aspect.build/rulesets/aspect_rules_js/docs/js_library#deps for more
         default = True,
     ),
     "validator": attr.label(mandatory = True, executable = True, cfg = "exec"),
+    "copy_data_to_bin": attr.bool(
+        doc = """When True, data files are copied to the Bazel output tree before being passed as inputs to runfiles.""",
+        default = False,
+    ),
     "_options": attr.label(
         default = "@aspect_rules_ts//ts:options",
     ),

ts/private/ts_lib.bzl

@@ -325,6 +325,8 @@ See https://github.com/aspect-build/rules_ts/issues/361 for more details.
         sources = output_sources_depset,
         data = ctx.attr.data,
         deps = srcs_tsconfig_deps,
+        data_files = ctx.files.data,
+        copy_data_files_to_bin = ctx.attr.copy_data_to_bin,
     )
 
     providers = [

ts/private/ts_project.bzl

@@ -0,0 +1,78 @@
+# Test data file copying behavior. See
+#
+# https://github.com/aspect-build/rules_ts/issues/411
+# https://github.com/aspect-build/rules_ts/issues/716
+#
+# Ideally, the behaviors with and without `transpiler` would align, but that is
+# backwards incompatible.
+
+load("//ts:defs.bzl", "ts_project")
+load("@aspect_rules_js//js:defs.bzl", "js_binary", "js_run_binary")
+load("@aspect_bazel_lib//lib:testing.bzl", "assert_contains")
+load("@aspect_bazel_lib//lib:copy_file.bzl", "copy_file")
+load("//ts/test:mock_transpiler.bzl", "mock")
+
+copy_file(
+    name = "no_transpiler_src",
+    src = "check_has_data.ts",
+    out = "no_transpiler.ts",
+)
+
+ts_project(
+    name = "no_transpiler",
+    srcs = ["no_transpiler.ts"],
+    data = ["data.txt"],
+    tsconfig = {},
+)
+
+js_binary(
+    name = "no_transpiler_bin",
+    entry_point = "no_transpiler.ts",
+    data = [":no_transpiler"],
+)
+
+js_run_binary(
+    name = "no_transpiler_gen",
+    tool = ":no_transpiler_bin",
+    chdir = package_name(),
+    stdout = "no_transpiler_out.txt",
+)
+
+assert_contains(
+    name = "no_transpiler_test",
+    actual = "no_transpiler_out.txt",
+    expected = "false",
+)
+
+copy_file(
+    name = "with_transpiler_src",
+    src = "check_has_data.ts",
+    out = "with_transpiler.ts",
+)
+
+ts_project(
+    name = "with_transpiler",
+    srcs = ["with_transpiler.ts"],
+    transpiler = mock,
+    data = ["data.txt"],
+    tsconfig = {},
+)
+
+js_binary(
+    name = "with_transpiler_bin",
+    entry_point = "with_transpiler.js",
+    data = [":with_transpiler"],
+)
+
+js_run_binary(
+    name = "with_transpiler_gen",
+    tool = ":with_transpiler_bin",
+    chdir = package_name(),
+    stdout = "with_transpiler_out.txt",
+)
+
+assert_contains(
+    name = "with_transpiler_test",
+    actual = "with_transpiler_out.txt",
+    expected = "true",
+)

ts/test/copy_data_to_bin/BUILD.bazel

@@ -0,0 +1,4 @@
+// @ts-ignore
+const { readdirSync } = require("node:fs");
+
+console.log(readdirSync(".").includes("data.txt"));

ts/test/copy_data_to_bin/check_has_data.ts

@@ -0,0 +1 @@
+irrelevant data in a file