Add and register toolchain

bazelbuild · May 21, 2024 · 1f62032 · 1f62032
1 parent 11311d1
commit 1f62032
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Showing 5 changed files with 54 additions and 4 deletions.
diff --git a/BUILD b/BUILD
@@ -1,4 +1,5 @@
 load("@rules_license//rules:license.bzl", "license")
+load("//proto:defs.bzl", "proto_toolchain")
 
 license(
     name = "license",
@@ -8,3 +9,8 @@ license(
 licenses(["notice"])
 
 exports_files(["LICENSE"])
+
+proto_toolchain(
+    name = "proto_toolchain",
+    proto_compiler = "@com_google_protobuf//:protoc",
+)
diff --git a/MODULE.bazel b/MODULE.bazel
@@ -17,3 +17,5 @@ bazel_dep(name = "rules_cc", version = "0.0.1", dev_dependency = True)
 bazel_dep(name = "googletest", version = "1.11.0", dev_dependency = True, repo_name = "com_google_googletest")
 bazel_dep(name = "protobuf", version = "23.1", dev_dependency = True, repo_name = "com_google_protobuf")
 bazel_dep(name = "platforms", version = "0.0.8", dev_dependency = True)
+
+register_toolchains("//:proto_toolchain_toolchain", dev_dependency = True)
diff --git a/MODULE.bazel.lock b/MODULE.bazel.lock
diff --git a/docs/defs.md b/docs/defs.md
diff --git a/tests/current_toolchain/BUILD.bazel b/tests/current_toolchain/BUILD.bazel
@@ -0,0 +1,17 @@
+load("//proto:defs.bzl", "current_proto_toolchain")
+
+current_proto_toolchain(
+    name = "current_proto_toolchain",
+    visibility = ["//visibility:public"],
+)
+
+genrule(
+    name = "gen_protoc_version_from_current_proto_toolchain",
+    srcs = [":current_proto_toolchain"],
+    outs = ["protoc_version_from_current_proto_toolchain"],
+    cmd = """
+        v=$$($(PROTOC) --version)
+        echo $$v > $(OUTS)
+    """,
+    toolchains = [":current_proto_toolchain"],
+)