Toolchainize twitter_scrooge

This is the last of the toolchain to receive the "toolchainization"
treatment prior to Bzlmodification, and moves `twitter_scrooge()` to
`twitter_scrooge/toolchain/toolchain.bzl` for `rules_java` 8
compatibility. Part of bazelbuild#1482 and bazelbuild#1652.

WORKSPACE

@@ -38,6 +38,7 @@ scala_toolchains(
     scala_proto = True,
     scalafmt = True,
     testing = True,
+    twitter_scrooge = True,
 )
 
 register_toolchains(
@@ -62,10 +63,6 @@ load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
 
 protobuf_deps()
 
-load("//twitter_scrooge:twitter_scrooge.bzl", "twitter_scrooge")
-
-twitter_scrooge()
-
 # needed for the cross repo proto test
 local_repository(
     name = "proto_cross_repo_boundary",

scala/toolchains.bzl

@@ -15,6 +15,10 @@ load("//scalatest:scalatest.bzl", "scalatest_artifact_ids")
 load("//specs2:specs2.bzl", "specs2_artifact_ids")
 load("//specs2:specs2_junit.bzl", "specs2_junit_artifact_ids")
 load("//third_party/repositories:repositories.bzl", "repositories")
+load(
+    "//twitter_scrooge/toolchain:toolchain.bzl",
+    "twitter_scrooge_artifact_ids",
+)
 load("@io_bazel_rules_scala_config//:config.bzl", "SCALA_VERSIONS")
 
 def scala_toolchains(
@@ -33,7 +37,13 @@ def scala_toolchains(
         scalafmt_default_config_path = ".scalafmt.conf",
         scala_proto = False,
         scala_proto_enable_all_options = False,
-        jmh = False):
+        jmh = False,
+        twitter_scrooge = False,
+        libthrift = None,
+        scrooge_core = None,
+        scrooge_generator = None,
+        util_core = None,
+        util_logging = None):
     """Instantiates @io_bazel_rules_scala_toolchains and all its dependencies.
 
     Provides a unified interface to configuring rules_scala both directly in a
@@ -86,6 +96,13 @@ def scala_toolchains(
             toolchain with all options enabled; `scala_proto` must also be
             `True` for this to take effect
         jmh: whether to instantiate the jmh toolchain
+        twitter_scrooge: whether to instantiate the twitter_scrooge toolchain
+        libthrift: label to a libthrift artifact for twitter_scrooge
+        scrooge_core: label to a scrooge_core artifact for twitter_scrooge
+        scrooge_generator: label to a scrooge_generator artifact for
+            twitter_scrooge
+        util_core: label to a util_core artifact for twitter_scrooge
+        util_logging: label to a util_logging artifact for twitter_scrooge
     """
     scala_repositories(
         maven_servers = maven_servers,
@@ -130,6 +147,17 @@ def scala_toolchains(
             id: False
             for id in jmh_artifact_ids()
         })
+    if twitter_scrooge:
+        artifact_ids_to_fetch_sources.update({
+            id: False
+            for id in twitter_scrooge_artifact_ids(
+                libthrift = libthrift,
+                scrooge_core = scrooge_core,
+                scrooge_generator = scrooge_generator,
+                util_core = util_core,
+                util_logging = util_logging,
+            )
+        })
 
     for scala_version in SCALA_VERSIONS:
         version_specific_artifact_ids = {}
@@ -168,6 +196,7 @@ def scala_toolchains(
         scala_proto = scala_proto,
         scala_proto_enable_all_options = scala_proto_enable_all_options,
         jmh = jmh,
+        twitter_scrooge = twitter_scrooge,
     )
 
 def scala_register_toolchains():

scala/toolchains_repo.bzl

@@ -49,6 +49,8 @@ def _scala_toolchains_repo_impl(repository_ctx):
         toolchains["scala_proto"] = _SCALA_PROTO_TOOLCHAIN_BUILD
     if repo_attr.jmh:
         toolchains["jmh"] = _JMH_TOOLCHAIN_BUILD
+    if repo_attr.twitter_scrooge:
+        toolchains["twitter_scrooge"] = _TWITTER_SCROOGE_TOOLCHAIN_BUILD
 
     testing_build_args = _generate_testing_toolchain_build_file_args(repo_attr)
     if testing_build_args != None:
@@ -81,6 +83,7 @@ _scala_toolchains_repo = repository_rule(
         "scala_proto": attr.bool(),
         "scala_proto_enable_all_options": attr.bool(),
         "jmh": attr.bool(),
+        "twitter_scrooge": attr.bool(),
     },
 )
 
@@ -210,3 +213,12 @@ load("@@{rules_scala_repo}//jmh/toolchain:toolchain.bzl", "setup_jmh_toolchain")
 
 setup_jmh_toolchain(name = "jmh_toolchain")
 """
+
+_TWITTER_SCROOGE_TOOLCHAIN_BUILD = """
+load(
+    "@@{rules_scala_repo}//twitter_scrooge/toolchain:toolchain.bzl",
+    "setup_scrooge_toolchain",
+)
+
+setup_scrooge_toolchain(name = "scrooge_toolchain")
+"""

test_version.sh

@@ -46,7 +46,7 @@ run_in_test_repo() {
 
   if [[ -n "$TWITTER_SCROOGE_VERSION" ]]; then
     local version_param="version = \"$TWITTER_SCROOGE_VERSION\""
-    scrooge_ws="scrooge_repositories($version_param)"
+    scrooge_ws="$version_param"
   fi
 
   sed -e "s%\${twitter_scrooge_repositories}%${scrooge_ws}\n%" \

test_version/WORKSPACE.template

@@ -61,6 +61,10 @@ load("@io_bazel_rules_scala//scala:scala_cross_version.bzl", "extract_major_vers
 
 load("@io_bazel_rules_scala//scala:toolchains.bzl", "scala_toolchains")
 
+load(":scrooge_repositories.bzl", "scrooge_repositories")
+
+scrooge_repositories(${twitter_scrooge_repositories})
+
 scala_toolchains(
     fetch_sources = True,
     scala_proto = True,
@@ -70,11 +74,6 @@ scala_toolchains(
 
 register_toolchains(
     "@io_bazel_rules_scala//scala:unused_dependency_checker_error_toolchain",
-    "@io_bazel_rules_scala//testing:testing_toolchain",
+    "@twitter_scrooge_test_toolchain//...:all",
     "@io_bazel_rules_scala_toolchains//...:all",
 )
-
-load(":scrooge_repositories.bzl", "scrooge_repositories")
-${twitter_scrooge_repositories}
-load("@io_bazel_rules_scala//twitter_scrooge:twitter_scrooge.bzl", "twitter_scrooge")
-twitter_scrooge()

test_version/version_specific_tests_dir/scrooge_repositories.bzl

@@ -1,15 +1,24 @@
+load(
+    "@io_bazel_rules_scala//scala:scala_cross_version.bzl",
+    "default_maven_server_urls",
+)
 load(
     "@io_bazel_rules_scala//scala:scala_maven_import_external.bzl",
     _scala_maven_import_external = "scala_maven_import_external",
 )
 load(
-    "@io_bazel_rules_scala//scala:scala_cross_version.bzl",
-    "default_maven_server_urls",
+    "@io_bazel_rules_scala//scala:toolchains_repo.bzl",
+    "scala_toolchains_repo",
+)
+load(
+    "@io_bazel_rules_scala//twitter_scrooge/toolchain:toolchain.bzl",
+    "twitter_scrooge",
 )
 
 def _import_external(id, artifact, sha256, deps = [], runtime_deps = []):
     _scala_maven_import_external(
         name = id,
+        generated_rule_name = id,
         artifact = artifact,
         artifact_sha256 = sha256,
         licenses = ["notice"],
@@ -20,8 +29,11 @@ def _import_external(id, artifact, sha256, deps = [], runtime_deps = []):
         fetch_sources = False,
     )
 
-def scrooge_repositories(version):
+def scrooge_repositories(version = None):
+    use_labels = False
+
     if version == "18.6.0":
+        use_labels = True
         _import_external(
             id = "io_bazel_rules_scala_scrooge_core",
             artifact = "com.twitter:scrooge-core_2.11:18.6.0",
@@ -48,7 +60,8 @@ def scrooge_repositories(version):
             sha256 = "73ddd61cedabd4dab82b30e6c52c1be6c692b063b8ba310d716ead9e3b4e9267",
         )
 
-    if version == "21.2.0":
+    elif version == "21.2.0":
+        use_labels = True
         _import_external(
             id = "io_bazel_rules_scala_scrooge_core",
             artifact = "com.twitter:scrooge-core_2.11:21.2.0",
@@ -74,3 +87,19 @@ def scrooge_repositories(version):
             artifact = "com.twitter:util-logging_2.11:21.2.0",
             sha256 = "f3b62465963fbf0fe9860036e6255337996bb48a1a3f21a29503a2750d34f319",
         )
+
+    if use_labels:
+        twitter_scrooge(
+            scrooge_core = "@io_bazel_rules_scala_scrooge_core",
+            scrooge_generator = "@io_bazel_rules_scala_scrooge_generator",
+            util_core = "@io_bazel_rules_scala_util_core",
+            util_logging = "@io_bazel_rules_scala_util_logging",
+            register_toolchains = False,
+        )
+    else:
+        twitter_scrooge(register_toolchains = False)
+
+    scala_toolchains_repo(
+        name = "twitter_scrooge_test_toolchain",
+        twitter_scrooge = True,
+    )

test_version/version_specific_tests_dir/twitter_scrooge/BUILD

@@ -8,7 +8,7 @@ dependencies_to_test = [
 deps_with_external_binds = [
     (
         dep_name,
-        "//external:io_bazel_rules_scala/dependency/thrift/{}".format(dep_name),
+        "@io_bazel_rules_scala_{}".format(dep_name),
     )
     for dep_name in dependencies_to_test
 ]

twitter_scrooge/BUILD

@@ -1,85 +1,14 @@
-load("//twitter_scrooge/toolchain:toolchain.bzl", "export_scrooge_deps", "scrooge_toolchain")
-load("//scala:providers.bzl", "declare_deps_provider")
-
-scrooge_toolchain(
-    name = "scrooge_toolchain_impl",
-    visibility = ["//visibility:public"],
-)
-
-toolchain(
-    name = "scrooge_toolchain",
-    toolchain = ":scrooge_toolchain_impl",
-    toolchain_type = "@io_bazel_rules_scala//twitter_scrooge/toolchain:scrooge_toolchain_type",
-    visibility = ["//visibility:public"],
-)
-
-declare_deps_provider(
-    name = "aspect_compile_classpath_provider",
-    deps_id = "aspect_compile_classpath",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//external:io_bazel_rules_scala/dependency/thrift/javax_annotation_api",
-        "//external:io_bazel_rules_scala/dependency/thrift/libthrift",
-        "//external:io_bazel_rules_scala/dependency/thrift/scrooge_core",
-        "//external:io_bazel_rules_scala/dependency/thrift/util_core",
-        "//scala/private/toolchain_deps:scala_library_classpath",
-    ],
-)
-
-declare_deps_provider(
-    name = "compile_classpath_provider",
-    deps_id = "compile_classpath",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//external:io_bazel_rules_scala/dependency/thrift/libthrift",
-        "//external:io_bazel_rules_scala/dependency/thrift/scrooge_core",
-        "//scala/private/toolchain_deps:scala_library_classpath",
-    ],
-)
-
-declare_deps_provider(
-    name = "scrooge_generator_classpath_provider",
-    deps_id = "scrooge_generator_classpath",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//external:io_bazel_rules_scala/dependency/thrift/scrooge_generator",
-    ],
-)
-
-declare_deps_provider(
-    name = "compiler_classpath_provider",
-    deps_id = "compiler_classpath",
-    visibility = ["//visibility:public"],
-    deps = [
-        "//external:io_bazel_rules_scala/dependency/thrift/mustache",
-        "//external:io_bazel_rules_scala/dependency/thrift/scopt",
-        "//external:io_bazel_rules_scala/dependency/thrift/scrooge_generator",
-        "//external:io_bazel_rules_scala/dependency/thrift/util_core",
-        "//external:io_bazel_rules_scala/dependency/thrift/util_logging",
-        "//scala/private/toolchain_deps:parser_combinators",
-    ],
-)
-
-export_scrooge_deps(
-    name = "compile_classpath",
-    deps_id = "compile_classpath",
-    visibility = ["//visibility:public"],
-)
-
-export_scrooge_deps(
-    name = "aspect_compile_classpath",
-    deps_id = "aspect_compile_classpath",
-    visibility = ["//visibility:public"],
-)
-
-export_scrooge_deps(
-    name = "scrooge_generator_classpath",
-    deps_id = "scrooge_generator_classpath",
-    visibility = ["//visibility:public"],
-)
-
-export_scrooge_deps(
-    name = "compiler_classpath",
-    deps_id = "compiler_classpath",
-    visibility = ["//visibility:public"],
-)
+load(
+    "//twitter_scrooge/toolchain:toolchain.bzl",
+    "DEP_PROVIDERS",
+    "export_scrooge_deps",
+)
+
+[
+    export_scrooge_deps(
+        name = dep,
+        deps_id = dep,
+        visibility = ["//visibility:public"],
+    )
+    for dep in DEP_PROVIDERS
+]