Make the scala_protobuf aspect based

.travis.yml

@@ -21,9 +21,11 @@ env:
   #- V=0.16.1 TEST_SCRIPT=test_lint.sh
   - V=0.17.1 TEST_SCRIPT=test_rules_scala.sh
   - V=0.22.0 TEST_SCRIPT=test_rules_scala.sh
+  - V=0.23.1 TEST_SCRIPT=test_rules_scala.sh
     #- V=0.14.1 TEST_SCRIPT=test_intellij_aspect.sh
   - V=0.17.1 TEST_SCRIPT=test_reproducibility.sh
   - V=0.22.0 TEST_SCRIPT=test_reproducibility.sh
+  - V=0.23.1 TEST_SCRIPT=test_reproducibility.sh
 
 before_install:
   - |

WORKSPACE

@@ -121,6 +121,10 @@ load("@io_bazel_rules_scala//scala:toolchains.bzl", "scala_register_unused_deps_
 
 scala_register_unused_deps_toolchains()
 
+
+register_toolchains("@io_bazel_rules_scala//test/proto:scalapb_toolchain")
+
+
 load("//scala:scala_maven_import_external.bzl", "scala_maven_import_external", "java_import_external")
 
 scala_maven_import_external(

scala_proto/BUILD

@@ -0,0 +1,38 @@
+load("//scala_proto:scala_proto_toolchain.bzl", "scala_proto_toolchain")
+
+toolchain_type(
+    name = "toolchain_type",
+    visibility = ["//visibility:public"],
+)
+
+scala_proto_toolchain(
+    name = "default_toolchain_impl",
+    with_grpc = True,
+    with_flat_package=False,
+    with_single_line_to_string=False,
+    visibility = ["//visibility:public"],
+)
+
+toolchain(
+    name = "default_toolchain",
+    toolchain = ":default_toolchain_impl",
+    toolchain_type = "@io_bazel_rules_scala//scala_proto:toolchain_type",
+    visibility = ["//visibility:public"],
+)
+
+
+scala_proto_toolchain(
+    name = "enable_all_options_toolchain_impl",
+    with_grpc = True,
+    with_flat_package=True,
+    # with_java=True,
+    with_single_line_to_string=True,
+    visibility = ["//visibility:public"],
+)
+
+toolchain(
+    name = "enable_all_options_toolchain",
+    toolchain = ":enable_all_options_toolchain_impl",
+    toolchain_type = "@io_bazel_rules_scala//scala_proto:toolchain_type",
+    visibility = ["//visibility:public"],
+)

scala_proto/private/dep_sets.bzl

@@ -0,0 +1,31 @@
+
+SCALAPB_DEPS = [
+    "//external:io_bazel_rules_scala/dependency/proto/scalapb_runtime",
+    "//external:io_bazel_rules_scala/dependency/com_google_protobuf/protobuf_java",
+    "//external:io_bazel_rules_scala/dependency/proto/scalapb_lenses",
+    "//external:io_bazel_rules_scala/dependency/proto/scalapb_fastparse",
+]
+
+GRPC_DEPS = [
+    "//external:io_bazel_rules_scala/dependency/proto/scalapb_runtime_grpc",
+    "//external:io_bazel_rules_scala/dependency/proto/grpc_core",
+    "//external:io_bazel_rules_scala/dependency/proto/grpc_stub",
+    "//external:io_bazel_rules_scala/dependency/proto/grpc_protobuf",
+    "//external:io_bazel_rules_scala/dependency/proto/grpc_netty",
+    "//external:io_bazel_rules_scala/dependency/proto/grpc_context",
+    "//external:io_bazel_rules_scala/dependency/proto/guava",
+    "//external:io_bazel_rules_scala/dependency/proto/opencensus_api",
+    "//external:io_bazel_rules_scala/dependency/proto/opencensus_contrib_grpc_metrics",
+    "//external:io_bazel_rules_scala/dependency/proto/google_instrumentation",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_codec",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_codec_http",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_codec_http2",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_codec_socks",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_handler",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_buffer",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_transport",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_resolver",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_common",
+    "//external:io_bazel_rules_scala/dependency/proto/netty_handler_proxy",
+]
+

scala_proto/private/proto_to_scala_src.bzl

@@ -0,0 +1,49 @@
+load(
+    "//scala/private:common.bzl",
+    "write_manifest_file",
+)
+load("//scala/private:rule_impls.bzl", "compile_scala")
+load("//scala_proto/private:dep_sets.bzl", "SCALAPB_DEPS", "GRPC_DEPS")
+
+
+def _root_path(f):
+    if f.is_source:
+        return f.owner.workspace_root
+    return "/".join([f.root.path, f.owner.workspace_root])
+
+
+def _colon_paths(data):
+    return ":".join([
+        f.path
+        for f in sorted(data)
+    ])
+
+
+def proto_to_scala_src(ctx, label, code_generator, compile_proto, include_proto, transitive_proto_paths, flags, jar_output):
+    worker_content = "{output}\n{included_proto}\n{flags_arg}\n{transitive_proto_paths}\n{inputs}\n{protoc}".format(
+        output = jar_output.path,
+        included_proto = "-" + ":".join(sorted(["%s,%s" % (f.root.path, f.path) for f in include_proto])),
+        # Command line args to worker cannot be empty so using padding
+        flags_arg = "-" + ",".join(flags),
+        transitive_proto_paths = "-" + ":".join(sorted(transitive_proto_paths)),
+        # Command line args to worker cannot be empty so using padding
+        # Pass inputs seprately because they doesn't always match to imports (ie blacklisted protos are excluded)
+        inputs = _colon_paths(compile_proto),
+        protoc = ctx.executable._protoc.path
+    )
+    argfile = ctx.actions.declare_file(
+        "%s_worker_input" % label.name,
+        sibling = jar_output,
+    )
+    ctx.actions.write(output = argfile, content = worker_content)
+    ctx.actions.run(
+        executable = code_generator.files_to_run,
+        inputs = compile_proto + include_proto + [argfile, ctx.executable._protoc],
+        outputs = [jar_output],
+        mnemonic = "ProtoScalaPBRule",
+        progress_message = "creating scalapb files %s" % ctx.label,
+        execution_requirements = {"supports-workers": "1"},
+        arguments = ["@" + argfile.path],
+    )
+
+