bazel: Migrate to bazel 7; use bzlmod for dependencies

.bazelignore

@@ -0,0 +1,3 @@
+# The examples/ dir has example bazel workspaces that show how to import
+# remote-apis, and should not be treated as part of this workspace.
+examples

.bazelversion

@@ -0,0 +1 @@
+7.0.1

.github/workflows/main.yml

@@ -15,12 +15,19 @@ jobs:
 
     - name: Install bazelisk
       run: |
-        curl -LO https://github.com/bazelbuild/bazelisk/releases/download/v1.7.4/bazelisk-linux-amd64
+        curl -LO https://github.com/bazelbuild/bazelisk/releases/download/v1.19.0/bazelisk-linux-amd64
         mkdir -p "${HOME}/bin"
         mv bazelisk-linux-amd64 "${HOME}/bin/bazel"
         chmod +x "${HOME}/bin/bazel"
 
+    # TODO: Should this step assert that generated code == checked-in code?
     - name: Check bindings generation
       run: |
         set -e
         PATH=${HOME}/bin:$PATH ./hooks/pre-commit
+
+    - name: Check sample project build
+      run: |
+        set -e
+        cd examples/sample_project
+        bazel build //...

.gitignore

@@ -2,9 +2,7 @@
 *~
 # Ignore Vim swap files.
 .*.sw*
-# Ignore bazel directories
-/bazel-bin
-/bazel-genfiles
-/bazel-out
-/bazel-remote-apis
-/bazel-testlogs
+# Ignore bazel directories, including those in nested workspaces (such as the
+# examples).
+**/bazel-*
+MODULE.bazel.lock

BUILD.bazel

@@ -0,0 +1,10 @@
+load("@gazelle//:def.bzl", "gazelle")
+
+# gazelle:prefix github.com/bazelbuild/remote-apis
+
+# gazelle:resolve proto google/api/annotations.proto @googleapis//google/api:annotations_proto
+# gazelle:resolve proto go google/api/annotations.proto @org_golang_google_genproto//googleapis/api/annotations
+
+gazelle(
+    name = "gazelle",
+)

MODULE.bazel

@@ -0,0 +1,29 @@
+module(
+    name = "remoteapis",
+    version = "0",
+)
+
+bazel_dep(name = "gazelle", version = "0.35.0")
+bazel_dep(name = "googleapis", version = "0.0.0-20240326-1c8d509c5", repo_name = "com_google_googleapis")
+bazel_dep(name = "protobuf", version = "21.7", repo_name = "com_google_protobuf")
+bazel_dep(name = "rules_cc", version = "0.0.9")
+bazel_dep(name = "rules_go", version = "0.44.2")
+bazel_dep(name = "rules_java", version = "7.3.2")
+bazel_dep(name = "rules_proto", version = "6.0.0-rc1")
+bazel_dep(name = "rules_proto_grpc_cpp", version = "5.0.0-alpha2")
+
+go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
+go_deps.from_file(go_mod = "//:go.mod")
+use_repo(
+    go_deps,
+    "com_google_cloud_go_longrunning",
+    "org_golang_google_genproto",
+    "org_golang_google_genproto_googleapis_api",
+    "org_golang_google_genproto_googleapis_rpc",
+    "org_golang_google_grpc",
+    "org_golang_google_protobuf",
+)
+
+switched_rules = use_extension("@com_google_googleapis//:extensions.bzl", "switched_rules")
+switched_rules.use_languages(go = True)
+use_repo(switched_rules, "com_google_googleapis_imports")

WORKSPACE

@@ -1,106 +1 @@
-workspace(name = "bazel_remote_apis")
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "bazel_skylib",
-    sha256 = "66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
-        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
-    ],
-)
-
-load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
-
-bazel_skylib_workspace()
-
-# Pull in go rules, which we need in order to selectively pull in Go dependencies.
-http_archive(
-    name = "io_bazel_rules_go",
-    sha256 = "d6ab6b57e48c09523e93050f13698f708428cfd5e619252e369d377af6597707",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.43.0/rules_go-v0.43.0.zip",
-        "https://github.com/bazelbuild/rules_go/releases/download/v0.43.0/rules_go-v0.43.0.zip",
-    ],
-)
-
-# Gazelle, which we need in order to selectively pull in Gazelle dependencies for Go.
-http_archive(
-    name = "bazel_gazelle",
-    sha256 = "b7387f72efb59f876e4daae42f1d3912d0d45563eac7cb23d1de0b094ab588cf",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-gazelle/releases/download/v0.34.0/bazel-gazelle-v0.34.0.tar.gz",
-        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.34.0/bazel-gazelle-v0.34.0.tar.gz",
-    ],
-)
-
-# Needed for protobuf.
-http_archive(
-    name = "com_google_protobuf",
-    sha256 = "535fbf566d372ccf3a097c374b26896fa044bf4232aef9cab37bd1cc1ba4e850",
-    strip_prefix = "protobuf-3.15.0",
-    urls = ["https://github.com/protocolbuffers/protobuf/archive/v3.15.0.zip"],
-)
-
-load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
-
-protobuf_deps()
-
-# Needed for C++ gRPC.
-http_archive(
-    name = "com_github_grpc_grpc",
-    sha256 = "b391a327429279f6f29b9ae7e5317cd80d5e9d49cc100e6d682221af73d984a6",
-    strip_prefix = "grpc-93e8830070e9afcbaa992c75817009ee3f4b63a0",  # v1.24.3 with fixes
-    urls = ["https://github.com/grpc/grpc/archive/93e8830070e9afcbaa992c75817009ee3f4b63a0.zip"],
-)
-
-# Pull in all gRPC dependencies.
-load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
-
-grpc_deps()
-
-# More gRPC dependencies. grpc_extra_deps does not work out of the box.
-load("@upb//bazel:workspace_deps.bzl", "upb_deps")
-load("@build_bazel_rules_apple//apple:repositories.bzl", "apple_rules_dependencies")
-load("@build_bazel_apple_support//lib:repositories.bzl", "apple_support_dependencies")
-
-upb_deps()
-
-apple_rules_dependencies()
-
-apple_support_dependencies()
-
-load("@upb//bazel:repository_defs.bzl", "bazel_version_repository")
-
-bazel_version_repository(
-    name = "bazel_version",
-)
-
-bind(
-    name = "grpc_cpp_plugin",
-    actual = "@com_github_grpc_grpc//:grpc_cpp_plugin",
-)
-
-bind(
-    name = "grpc_lib",
-    actual = "@com_github_grpc_grpc//:grpc++",
-)
-
-load("//:remote_apis_deps.bzl", "remote_apis_go_deps")
-
-remote_apis_go_deps()
-
-# Needed for the googleapis protos.
-http_archive(
-    name = "googleapis",
-    sha256 = "b28c13e99001664eac5f1fb81b44d912d19fbc041e30772263251da131f6573c",
-    strip_prefix = "googleapis-bb964feba5980ed70c9fb8f84fe6e86694df65b0",
-    urls = ["https://github.com/googleapis/googleapis/archive/bb964feba5980ed70c9fb8f84fe6e86694df65b0.zip"],
-)
-
-load("@googleapis//:repository_rules.bzl", "switched_rules_by_language")
-
-switched_rules_by_language(
-    name = "com_google_googleapis_imports",
-)
+"""Empty WORKSPACE file to denote the bazel workspace root"""

build/bazel/remote/asset/v1/BUILD

@@ -1,6 +1,10 @@
-package(default_visibility = ["//visibility:public"])
-
+load("@rules_go//proto:def.bzl", "go_grpc_library")
+load("@rules_java//java:defs.bzl", "java_proto_library")
 load("@rules_proto//proto:defs.bzl", "proto_library")
+load("@rules_proto_grpc_cpp//:defs.bzl", "cpp_grpc_library")
+
+# gazelle:ignore
+package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])
 
@@ -11,28 +15,38 @@ proto_library(
         "//build/bazel/remote/execution/v2:remote_execution_proto",
         "@com_google_protobuf//:duration_proto",
         "@com_google_protobuf//:timestamp_proto",
-        "@googleapis//google/api:annotations_proto",
-        "@googleapis//google/api:http_proto",
-        "@googleapis//google/rpc:status_proto",
+        "@com_google_googleapis//google/api:annotations_proto",
+        "@com_google_googleapis//google/api:http_proto",
+        "@com_google_googleapis//google/rpc:status_proto",
     ],
 )
 
-alias(
-    name = "remote_asset_java_proto",
-    actual = "//build/bazel/remote/asset/v1/java:remote_asset_java_proto",
-)
+go_grpc_library(
+    name = "remote_asset_go_grpc",
+    importpath = "github.com/bazelbuild/remote-apis/build/bazel/remote/asset/v1",
+    protos = [":remote_asset_proto"],
+    deps = [
+        "//build/bazel/remote/execution/v2:remote_execution_go_grpc",
+        "@org_golang_google_genproto_googleapis_api//annotations",
+        "@org_golang_google_genproto_googleapis_rpc//status",
+    ],
+)  # keep
 
 alias(
-    name = "remote_asset_cc_proto",
-    actual = "//build/bazel/remote/asset/v1/cc:remote_asset_cc_grpc",
+    name = "go_default_library",
+    actual = ":remote_asset_go_grpc",
 )
 
-alias(
-    name = "remote_asset_go_proto",
-    actual = "//build/bazel/remote/asset/v1/go:remote_asset_go_proto",
+cpp_grpc_library(
+    name = "remote_asset_cpp_grpc",
+    protos = [":remote_asset_proto"],
+    deps = [
+        "//build/bazel/remote/execution/v2:remote_execution_cpp_grpc",
+    ],
 )
 
-alias(
-    name = "go_default_library",
-    actual = "//build/bazel/remote/asset/v1/go:go_default_library",
+# TODO: Include/replace with gRPC stub generation targets when feasible
+java_proto_library(
+    name = "remote_asset_java_proto",
+    deps = [":remote_asset_proto"],
 )