Experimental: add starlarklibrary gazelle extension

cmd/gazelle/BUILD.bazel

@@ -29,6 +29,7 @@ go_library(
         "//cmd/gazelle/internal/wspace",
         "//language/proto_go_modules",
         "//language/protobuf",
+        "//language/starlarkrepository",
         "@bazel_gazelle//config",
         "@bazel_gazelle//flag",
         "@bazel_gazelle//label",

cmd/gazelle/langs.go

@@ -21,11 +21,13 @@ import (
 	"github.com/bazelbuild/bazel-gazelle/language/proto"
 	"github.com/stackb/rules_proto/v4/language/proto_go_modules"
 	"github.com/stackb/rules_proto/v4/language/protobuf"
+	"github.com/stackb/rules_proto/v4/language/starlarkrepository"
 )
 
 var languages = []language.Language{
 	proto.NewLanguage(),
 	protobuf.NewLanguage(),
 	golang.NewLanguage(),
 	proto_go_modules.NewLanguage(),
+	starlarkrepository.NewLanguage(),
 }

extensions/starlark_repository.bzl

@@ -0,0 +1,135 @@
+"""proto_repostitory.bzl provides the starlark_repository rule."""
+
+# Copyright 2014 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+load("@bazel_features//:features.bzl", "bazel_features")
+load("@build_stack_rules_proto//rules/proto:starlark_repository.bzl", "starlark_repository_attrs", starlark_repository_repo_rule = "starlark_repository")
+
+def _extension_metadata(
+        module_ctx,
+        *,
+        root_module_direct_deps = None,
+        root_module_direct_dev_deps = None,
+        reproducible = False):
+    """returns the module_ctx.extension_metadata in a bazel-version-aware way
+
+    This function was copied from the bazel-gazelle repository.
+    """
+
+    if not hasattr(module_ctx, "extension_metadata"):
+        return None
+    metadata_kwargs = {}
+    if bazel_features.external_deps.extension_metadata_has_reproducible:
+        metadata_kwargs["reproducible"] = reproducible
+    return module_ctx.extension_metadata(
+        root_module_direct_deps = root_module_direct_deps,
+        root_module_direct_dev_deps = root_module_direct_dev_deps,
+        **metadata_kwargs
+    )
+
+def _starlark_repository_impl(module_ctx):
+    # named_archives / named_locals are dicts<K,V> where V is the kwargs for
+    # the underlying "starlark_repository" repo rule and K is the tag.name
+    # (the name given by the MODULE.bazel author).
+    named_archives = {}
+    named_locals = {}
+
+    # iterate all the module tags and gather a list of named repos.
+    #
+    # TODO(pcj): what is the best practice for version selection here? Do I need
+    # to check if module.is_root and handle that differently?
+    #
+    for module in module_ctx.modules:
+        for tag in module.tags.archive:
+            kwargs = {
+                attr: getattr(tag, attr)
+                for attr in _starlark_repository_archive_attrs.keys()
+                if hasattr(tag, attr)
+            }
+            named_archives[tag.name] = kwargs
+        for tag in module.tags.local:
+            kwargs = {
+                attr: getattr(tag, attr)
+                for attr in _starlark_repository_local_attrs.keys()
+                if hasattr(tag, attr)
+            }
+
+            # The user-facing attr is "path"; the underlying repo rule expects
+            # "local_path" (a sibling of "urls" / "commit" / "version").
+            kwargs["local_path"] = kwargs.pop("path")
+            named_locals[tag.name] = kwargs
+
+    # declare a repository rule foreach one
+    for apparent_name, kwargs in named_archives.items():
+        starlark_repository_repo_rule(
+            apparent_name = apparent_name,
+            **kwargs
+        )
+    for apparent_name, kwargs in named_locals.items():
+        starlark_repository_repo_rule(
+            apparent_name = apparent_name,
+            **kwargs
+        )
+
+    return _extension_metadata(
+        module_ctx,
+        reproducible = True,
+    )
+
+_starlark_repository_archive_attrs = starlark_repository_attrs | {
+    "name": attr.string(
+        doc = "The repo name.",
+        mandatory = True,
+    ),
+}
+_starlark_repository_archive_attrs.pop("apparent_name")
+
+# Attrs for the .local() tag class. Excludes archive-only attrs (urls, sha256,
+# strip_prefix, type, integrity, canonical_id, auth_patterns, commit, tag,
+# vcs, remote, version, sum, replace) and instead takes a single `path`
+# (mapped to the underlying rule's `local_path`).
+_starlark_repository_local_attrs = {
+    "name": attr.string(
+        doc = "The repo name.",
+        mandatory = True,
+    ),
+    "path": attr.string(
+        doc = "Filesystem path (workspace-relative or absolute) to the repository contents.",
+        mandatory = True,
+    ),
+    "build_directives": attr.string_list(),
+    "build_file_generation": attr.string(),
+    "languages": attr.string_list(),
+    "cfgs": attr.label_list(allow_files = True),
+    "imports": attr.label_list(allow_files = True),
+    "imports_out": attr.string(default = "imports.csv"),
+    "deleted_files": attr.string_list(),
+    "reresolve_known_proto_imports": attr.bool(),
+    "importpath": attr.string(),
+}
+
+starlark_repository = module_extension(
+    implementation = _starlark_repository_impl,
+    tag_classes = dict(
+        archive = tag_class(
+            doc = "declare an http_archive repository that is post-processed by a custom version of gazelle that includes the 'protobuf' language",
+            attrs = _starlark_repository_archive_attrs,
+        ),
+        local = tag_class(
+            doc = "declare a local-path repository that is post-processed by gazelle's starlarkrepository language. Useful when the source already lives on disk (e.g. a git submodule) and we want to avoid network fetches.",
+            attrs = _starlark_repository_local_attrs,
+        ),
+    ),
+)

go.mod

@@ -22,15 +22,11 @@ require (
 require (
 	github.com/bmatcuk/doublestar/v4 v4.9.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/golang/mock v1.7.0-rc.1 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
 	golang.org/x/mod v0.27.0 // indirect
 	golang.org/x/net v0.42.0 // indirect
 	golang.org/x/sync v0.16.0 // indirect
 	golang.org/x/sys v0.34.0 // indirect
 	golang.org/x/text v0.27.0 // indirect
-	golang.org/x/tools v0.35.0 // indirect
 	golang.org/x/tools/go/vcs v0.1.0-deprecated // indirect
-	google.golang.org/genproto v0.0.0-20250115164207-1a7da9e5054f // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 // indirect
 )

go.sum

@@ -1,19 +1,11 @@
-github.com/bazelbuild/bazel-gazelle v0.45.0 h1:ZfbDRyNppw0Sd42lXVX7ybar63MJofb58Yvl4SvbtYY=
-github.com/bazelbuild/bazel-gazelle v0.45.0/go.mod h1:XdBdWhrTc5x50CKzKXOcwrZWdLuX58IX1KcSaWPtEGo=
 github.com/bazelbuild/bazel-gazelle v0.47.0 h1:g3Rr1ZbkC1Pk20aOgBITxSD/efS1WbaSty5jC786Z3Q=
 github.com/bazelbuild/bazel-gazelle v0.47.0/go.mod h1:8Ozf20jhv+in87nCUHdmUPPcVGTfKg/gotZ/hce3T+w=
-github.com/bazelbuild/buildtools v0.0.0-20250826111327-4006b543a694 h1:LiKs9FsSfMx3NomNclXYkv9enY77oft5Mc/vX/AKHgI=
-github.com/bazelbuild/buildtools v0.0.0-20250826111327-4006b543a694/go.mod h1:PLNUetjLa77TCCziPsz0EI8a6CUxgC+1jgmWv0H25tg=
 github.com/bazelbuild/buildtools v0.0.0-20250930140053-2eb4fccefb52 h1:njQAmjTv/YHRm/0Lfv9DXHFZ4MdT2IA/RKHTnqZkgDw=
 github.com/bazelbuild/buildtools v0.0.0-20250930140053-2eb4fccefb52/go.mod h1:PLNUetjLa77TCCziPsz0EI8a6CUxgC+1jgmWv0H25tg=
-github.com/bazelbuild/rules_go v0.57.0 h1:qBFxjy29iJg22xWlu5A3mNwrXtCHiEnHcIt91SsiFGU=
-github.com/bazelbuild/rules_go v0.57.0/go.mod h1:Pn30cb4M513fe2rQ6GiJ3q8QyrRsgC7zhuDvi50Lw4Y=
 github.com/bazelbuild/rules_go v0.59.0 h1:RLhOwYIqeMgBpKelHEWTfIPjA37so3oa/rX+/qqq/P4=
 github.com/bazelbuild/rules_go v0.59.0/go.mod h1:Pn30cb4M513fe2rQ6GiJ3q8QyrRsgC7zhuDvi50Lw4Y=
 github.com/bmatcuk/doublestar v1.3.4 h1:gPypJ5xD31uhX6Tf54sDPUOBXTqKH4c9aPY66CyQrS0=
 github.com/bmatcuk/doublestar v1.3.4/go.mod h1:wiQtGV+rzVYxB7WIlirSN++5HPtPlXEo9MEoZQC/PmE=
-github.com/bmatcuk/doublestar/v4 v4.7.1 h1:fdDeAqgT47acgwd9bd9HxJRDmc9UAmPpc+2m0CXv75Q=
-github.com/bmatcuk/doublestar/v4 v4.7.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
 github.com/bmatcuk/doublestar/v4 v4.9.1 h1:X8jg9rRZmJd4yRy7ZeNDRnM+T3ZfHv15JiBJ/avrEXE=
 github.com/bmatcuk/doublestar/v4 v4.9.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -26,8 +18,6 @@ github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
-github.com/golang/mock v1.7.0-rc.1 h1:YojYx61/OLFsiv6Rw1Z96LpldJIy31o+UHmwAUMJ6/U=
-github.com/golang/mock v1.7.0-rc.1/go.mod h1:s42URUywIqd+OcERslBJvOjepvNymP31m3q8d/GkuRs=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
@@ -42,7 +32,6 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
 go.opentelemetry.io/otel v1.37.0 h1:9zhNfelUvx0KBfu/gb+ZgeAfAgtWrfHJZcAqFC228wQ=
@@ -62,52 +51,32 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
 golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
-golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
 golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
 golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.15.0 h1:KWH3jNZsfyT6xfAfKiz6MRNmd46ByHDYaZ7KSkCtdW8=
-golang.org/x/sync v0.15.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
 golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
-golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
 golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
-golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
 golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
 golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
-golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
-golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
 golang.org/x/tools/go/vcs v0.1.0-deprecated h1:cOIJqWBl99H1dH5LWizPa+0ImeeJq3t3cJjaeOWUAL4=
 golang.org/x/tools/go/vcs v0.1.0-deprecated/go.mod h1:zUrvATBAvEI9535oC0yWYsLsHIV4Z7g63sNPVMtuBy8=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -116,8 +85,6 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
 gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/genproto v0.0.0-20250115164207-1a7da9e5054f h1:387Y+JbxF52bmesc8kq1NyYIp33dnxCw6eiA7JMsTmw=
-google.golang.org/genproto v0.0.0-20250115164207-1a7da9e5054f/go.mod h1:0joYwWwLQh18AOj8zMYeZLjzuqcYTU3/nC5JdCvC3JI=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7 h1:pFyd6EwwL2TqFf8emdthzeX+gZE1ElRq3iM8pui4KBY=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250707201910-8d1bb00bc6a7/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.75.1 h1:/ODCNEuf9VghjgO3rqLcfg8fiOP0nSluljWFlDxELLI=

language/starlarkrepository/BUILD.bazel

@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "starlarkrepository",
+    srcs = ["language.go"],
+    importpath = "github.com/stackb/rules_proto/v4/language/starlarkrepository",
+    visibility = ["//visibility:public"],
+    deps = [
+        "@bazel_gazelle//config",
+        "@bazel_gazelle//label",
+        "@bazel_gazelle//language",
+        "@bazel_gazelle//repo",
+        "@bazel_gazelle//resolve",
+        "@bazel_gazelle//rule",
+        "@com_github_bazelbuild_buildtools//build",
+    ],
+)
+
+go_test(
+    name = "starlarkrepository_test",
+    srcs = ["language_test.go"],
+    embed = [":starlarkrepository"],
+    deps = ["@com_github_bazelbuild_buildtools//build"],
+)