Add `default_applicable_license` and remove obsolete `licenses()` in all BUILD files (#504)

BUILD

@@ -1,8 +1,16 @@
+load("@rules_license//rules:license.bzl", "license")
 load("//:bzl_library.bzl", "bzl_library")
 
-licenses(["notice"])
+package(
+    default_applicable_licenses = ["//:license"],
+    default_visibility = ["//visibility:public"],
+)
 
-package(default_visibility = ["//visibility:public"])
+license(
+    name = "license",
+    package_name = "bazelbuild/bazel_skylib",
+    license_kinds = ["@rules_license//licenses/spdx:Apache-2.0"],
+)
 
 # buildifier: disable=skylark-comment
 # gazelle:exclude skylark_library.bzl

MODULE.bazel

@@ -11,6 +11,7 @@ register_toolchains(
 )
 
 bazel_dep(name = "platforms", version = "0.0.4")
+bazel_dep(name = "rules_license", version = "0.0.7")
 
 ### INTERNAL ONLY - lines after this are not included in the release packaging.
 

distribution/BUILD

@@ -4,6 +4,7 @@ load("@rules_pkg//:pkg.bzl", "pkg_tar")
 load("distribution.bzl", "remove_internal_only")
 
 package(
+    default_applicable_licenses = ["//:license"],
     default_visibility = ["//visibility:private"],
 )
 

docs/BUILD

@@ -1,6 +1,6 @@
 load("//docs/private:stardoc_with_diff_test.bzl", "stardoc_with_diff_test", "update_docs")
 
-licenses(["notice"])
+package(default_applicable_licenses = ["//:license"])
 
 stardoc_with_diff_test(
     name = "analysis_test",

docs/private/BUILD

@@ -1 +1,3 @@
-# No targets in this package
+# This package only contains source targets
+
+package(default_applicable_licenses = ["//:license"])

gazelle/BUILD

@@ -1,4 +1,13 @@
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
+load("@rules_license//rules:license.bzl", "license")
+
+package(default_applicable_licenses = ["@bazel_skylib//:license"])
+
+license(
+    name = "license",
+    package_name = "bazelbuild/bazel_skylib_gazelle_module",
+    license_kinds = ["@rules_license//licenses/spdx:Apache-2.0"],
+)
 
 exports_files(["WORKSPACE.bzlmod"])
 

gazelle/MODULE.bazel

@@ -6,7 +6,8 @@ module(
 )
 
 # Keep in sync with @bazel_skylib//:MODULE.bazel and @bazel_skylib//:version.bzl
-bazel_dep(name = "bazel_skylib", version = "1.4.2")
+bazel_dep(name = "bazel_skylib", version = "1.6.1")
+bazel_dep(name = "rules_license", version = "0.0.7")
 bazel_dep(name = "gazelle", version = "0.29.0", repo_name = "bazel_gazelle")
 bazel_dep(name = "rules_go", version = "0.41.0", repo_name = "io_bazel_rules_go")
 

gazelle/bzl/BUILD

@@ -1,6 +1,8 @@
 load("@bazel_gazelle//:def.bzl", "gazelle", "gazelle_binary")
 load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 
+package(default_applicable_licenses = ["//:license"])
+
 # gazelle:exclude testdata
 
 go_library(

gazelle/workspace.bzl

@@ -22,6 +22,16 @@ def bazel_skylib_gazelle_plugin_workspace():
     """Loads dependencies required to use skylib's gazelle plugin"""
     bazel_skylib_workspace()
 
+    maybe(
+        http_archive,
+        name = "rules_license",
+        sha256 = "4531deccb913639c30e5c7512a054d5d875698daeb75d8cf90f284375fe7c360",
+        urls = [
+            "https://mirror.bazel.build/github.com/bazelbuild/rules_license/releases/download/0.0.7/rules_license-0.0.7.tar.gz",
+            "https://github.com/bazelbuild/rules_license/releases/download/0.0.7/rules_license-0.0.7.tar.gz",
+        ],
+    )
+
     maybe(
         http_archive,
         name = "io_bazel_rules_go",

lib/BUILD

@@ -1,8 +1,9 @@
 load("//:bzl_library.bzl", "bzl_library")
 
-licenses(["notice"])
-
-package(default_visibility = ["//visibility:public"])
+package(
+    default_applicable_licenses = ["//:license"],
+    default_visibility = ["//visibility:public"],
+)
 
 # export bzl files for the documentation
 exports_files(

rules/BUILD

@@ -1,8 +1,9 @@
 load("//:bzl_library.bzl", "bzl_library")
 
-licenses(["notice"])
-
-package(default_visibility = ["//visibility:public"])
+package(
+    default_applicable_licenses = ["//:license"],
+    default_visibility = ["//visibility:public"],
+)
 
 bzl_library(
     name = "analysis_test",

rules/private/BUILD

@@ -1,6 +1,6 @@
 load("//:bzl_library.bzl", "bzl_library")
 
-licenses(["notice"])
+package(default_applicable_licenses = ["//:license"])
 
 bzl_library(
     name = "copy_common",

tests/BUILD

@@ -15,7 +15,10 @@ load(":types_tests.bzl", "types_test_suite")
 load(":unittest_tests.bzl", "unittest_passing_tests_suite")
 load(":versions_tests.bzl", "versions_test_suite")
 
-licenses(["notice"])
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 exports_files(
     ["unittest.bash"],

tests/bzl_library/BUILD

@@ -1,6 +1,11 @@
 load("//:bzl_library.bzl", "bzl_library")
 load(":bzl_library_test.bzl", "bzl_library_test")
 
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
+
 filegroup(
     name = "a",
     srcs = ["testdata/a.bzl"],

tests/common_settings/BUILD

@@ -1,8 +1,9 @@
 load("//rules:common_settings.bzl", "int_flag", "string_flag")
 
-licenses(["notice"])
-
-package(default_testonly = 1)
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 int_flag(
     name = "my_int_flag",

tests/copy_directory/BUILD.bazel

@@ -3,9 +3,10 @@
 load("//rules:copy_directory.bzl", "copy_directory")
 load(":empty_directory.bzl", "empty_directory")
 
-licenses(["notice"])
-
-package(default_testonly = 1)
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 # Copy of directory containing files a and b, and a subdir containing c
 copy_directory(

tests/copy_file/BUILD

@@ -33,9 +33,10 @@
 
 load("//rules:copy_file.bzl", "copy_file")
 
-licenses(["notice"])
-
-package(default_testonly = 1)
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 sh_test(
     name = "copy_file_tests",

tests/diff_test/BUILD

@@ -2,9 +2,10 @@
 
 load("//rules:diff_test.bzl", "diff_test")
 
-licenses(["notice"])
-
-package(default_testonly = 1)
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 sh_test(
     name = "diff_test_tests",

tests/expand_template/BUILD

@@ -16,6 +16,11 @@
 
 load("//rules:expand_template.bzl", "expand_template")
 
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
+
 expand_template(
     name = "filled_template",
     out = "foo/test.yaml",

tests/native_binary/BUILD

@@ -2,6 +2,7 @@ load("//rules:copy_file.bzl", "copy_file")
 load("//rules:native_binary.bzl", "native_binary", "native_test")
 
 package(
+    default_applicable_licenses = ["//:license"],
     default_testonly = 1,
     default_visibility = ["//visibility:private"],
 )

tests/run_binary/BUILD

@@ -3,6 +3,7 @@ load("//rules:run_binary.bzl", "run_binary")
 load("//rules:write_file.bzl", "write_file")
 
 package(
+    default_applicable_licenses = ["//:license"],
     default_testonly = 1,
     default_visibility = ["//visibility:private"],
 )

tests/select_file/BUILD

@@ -1,7 +1,10 @@
 load("//rules:diff_test.bzl", "diff_test")
 load("//rules:select_file.bzl", "select_file")
 
-licenses(["notice"])
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 filegroup(
     name = "fg",

tests/unittest_test.sh

@@ -79,7 +79,10 @@ EOF
   ln -sf "$(rlocation $TEST_WORKSPACE/lib/unittest.bzl)" lib/unittest.bzl
 
   mkdir -p toolchains/unittest
-  ln -sf "$(rlocation $TEST_WORKSPACE/toolchains/unittest/BUILD)" toolchains/unittest/BUILD
+  # Remove `package(default_applicable_license = ...)` line to avoid depending on rules_license inside this test
+  sed -e '/package(default_applicable_licenses = .*)/d' \
+    "$(rlocation $TEST_WORKSPACE/toolchains/unittest/BUILD)" \
+    > toolchains/unittest/BUILD
 
   # Create test files.
   mkdir -p testdir

tests/write_file/BUILD

@@ -35,9 +35,10 @@
 load("//rules:diff_test.bzl", "diff_test")
 load("//rules:write_file.bzl", "write_file")
 
-licenses(["notice"])
-
-package(default_testonly = 1)
+package(
+    default_applicable_licenses = ["//:license"],
+    default_testonly = 1,
+)
 
 sh_test(
     name = "write_file_tests",

toolchains/unittest/BUILD

@@ -1,6 +1,6 @@
 load("//lib:unittest.bzl", "TOOLCHAIN_TYPE", "unittest_toolchain")
 
-licenses(["notice"])
+package(default_applicable_licenses = ["//:license"])
 
 toolchain_type(
     name = "toolchain_type",

workspace.bzl

@@ -15,7 +15,18 @@
 """Dependency registration helpers for repositories which need to load bazel-skylib."""
 
 load("@bazel_skylib//lib:unittest.bzl", "register_unittest_toolchains")
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
 
 def bazel_skylib_workspace():
     """Registers toolchains and declares repository dependencies of the bazel_skylib repository."""
+    maybe(
+        http_archive,
+        name = "rules_license",
+        sha256 = "4531deccb913639c30e5c7512a054d5d875698daeb75d8cf90f284375fe7c360",
+        urls = [
+            "https://mirror.bazel.build/github.com/bazelbuild/rules_license/releases/download/0.0.7/rules_license-0.0.7.tar.gz",
+            "https://github.com/bazelbuild/rules_license/releases/download/0.0.7/rules_license-0.0.7.tar.gz",
+        ],
+    )
     register_unittest_toolchains()