Use version-aware naming for scala_compiler_source repository

A small preparation for multiple `SCALA_VERSIONS`.

Author: aszady

scala/private/macros/scala_repositories.bzl

@@ -1,14 +1,16 @@
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 load(
     "@io_bazel_rules_scala//scala:scala_cross_version.bzl",
+    "extract_major_version",
+    "extract_minor_version",
+    "version_suffix",
     _default_maven_server_urls = "default_maven_server_urls",
 )
 load("//third_party/repositories:repositories.bzl", "repositories")
 load(
     "@io_bazel_rules_scala_config//:config.bzl",
     "SCALA_MAJOR_VERSION",
-    "SCALA_MINOR_VERSION",
-    "SCALA_VERSION",
+    "SCALA_VERSIONS",
 )
 
 def _dt_patched_compiler_impl(rctx):
@@ -37,16 +39,18 @@ def _validate_scalac_srcjar(srcjar):
             count += 1
     return count == 1
 
-def dt_patched_compiler_setup(scala_compiler_srcjar = None):
-    patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.patch" % SCALA_MAJOR_VERSION
+def dt_patched_compiler_setup(scala_version, scala_compiler_srcjar = None):
+    scala_major_version = extract_major_version(scala_version)
+    scala_minor_version = extract_minor_version(scala_version)
+    patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.patch" % scala_major_version
 
-    minor_version = int(SCALA_MINOR_VERSION)
+    minor_version = int(scala_minor_version)
 
-    if SCALA_MAJOR_VERSION == "2.12":
+    if scala_major_version == "2.12":
         if minor_version >= 1 and minor_version <= 7:
-            patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.1.patch" % SCALA_MAJOR_VERSION
+            patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.1.patch" % scala_major_version
         elif minor_version <= 11:
-            patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.8.patch" % SCALA_MAJOR_VERSION
+            patch = "@io_bazel_rules_scala//dt_patches:dt_compiler_%s.8.patch" % scala_major_version
 
     build_file_content = "\n".join([
         "package(default_visibility = [\"//visibility:public\"])",
@@ -56,7 +60,7 @@ def dt_patched_compiler_setup(scala_compiler_srcjar = None):
         ")",
     ])
     default_scalac_srcjar = {
-        "url": "https://repo1.maven.org/maven2/org/scala-lang/scala-compiler/%s/scala-compiler-%s-sources.jar" % (SCALA_VERSION, SCALA_VERSION),
+        "url": "https://repo1.maven.org/maven2/org/scala-lang/scala-compiler/%s/scala-compiler-%s-sources.jar" % (scala_version, scala_version),
     }
     srcjar = scala_compiler_srcjar if scala_compiler_srcjar != None else default_scalac_srcjar
     _validate_scalac_srcjar(srcjar) or fail(
@@ -65,14 +69,14 @@ def dt_patched_compiler_setup(scala_compiler_srcjar = None):
     )
     if "label" in srcjar:
         dt_patched_compiler(
-            name = "scala_compiler_source",
+            name = "scala_compiler_source" + version_suffix(scala_version),
             build_file_content = build_file_content,
             patch = patch,
             srcjar = srcjar["label"],
         )
     else:
         http_archive(
-            name = "scala_compiler_source",
+            name = "scala_compiler_source" + version_suffix(scala_version),
             build_file_content = build_file_content,
             patches = [patch],
             url = srcjar.get("url"),
@@ -120,7 +124,8 @@ def rules_scala_setup(scala_compiler_srcjar = None):
             ],
         )
 
-    dt_patched_compiler_setup(scala_compiler_srcjar)
+    for scala_version in SCALA_VERSIONS:
+        dt_patched_compiler_setup(scala_version, scala_compiler_srcjar)
 
 ARTIFACT_IDS = [
     "io_bazel_rules_scala_scala_library",

third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/compiler/BUILD

@@ -1,8 +1,10 @@
 load("//scala:scala.bzl", "scala_library_for_plugin_bootstrapping")
+load("//scala:scala_cross_version.bzl", "version_suffix")
+load("@io_bazel_rules_scala_config//:config.bzl", "SCALA_VERSION")
 
 scala_library_for_plugin_bootstrapping(
     name = "dep_reporting_compiler",
-    srcs = ["@scala_compiler_source//:src"],
+    srcs = ["@scala_compiler_source%s//:src" % version_suffix(SCALA_VERSION)],
     scalac_jvm_flags = ["-Xmx128M"],  # fixme - workaround for a failing test
     visibility = ["//visibility:public"],
     deps = ["//scala/private/toolchain_deps:scala_compile_classpath"],