chore: carve out compute module (#5273)

This will be tagged:

- v0.100.2
- compute/v0.1.0

compute/CHANGES.md

@@ -0,0 +1,6 @@
+# Changes
+
+## v0.1.0
+
+This is the first tag to carve out compute as its own module. See
+[Add a module to a multi-module repository](https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository).

compute/README.md

@@ -0,0 +1,40 @@
+# Compute API
+
+[![Go Reference](https://pkg.go.dev/badge/cloud.google.com/go/compute.svg)](https://pkg.go.dev/cloud.google.com/go/compute)
+
+Go Client Library for Compute API.
+
+## Install
+
+```bash
+go get cloud.google.com/go/compute
+```
+
+## Stability
+
+The stability of this module is indicated by SemVer.
+
+However, a `v1+` module may have breaking changes in two scenarios:
+
+* Packages with `alpha` or `beta` in the import path
+* The GoDoc has an explicit stability disclaimer (for example, for an experimental feature).
+
+## Go Version Support
+
+See the [Go Versions Supported](https://github.com/googleapis/google-cloud-go#go-versions-supported)
+section in the root directory's README.
+
+## Authorization
+
+See the [Authorization](https://github.com/googleapis/google-cloud-go#authorization)
+section in the root directory's README.
+
+## Contributing
+
+Contributions are welcome. Please, see the [CONTRIBUTING](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md)
+document for details.
+
+Please note that this project is released with a Contributor Code of Conduct.
+By participating in this project you agree to abide by its terms. See
+[Contributor Code of Conduct](https://github.com/GoogleCloudPlatform/google-cloud-go/blob/main/CONTRIBUTING.md#contributor-code-of-conduct)
+for more information.

compute/go.mod

@@ -0,0 +1,14 @@
+module cloud.google.com/go/compute
+
+go 1.11
+
+require (
+	cloud.google.com/go v0.100.2
+	github.com/google/go-cmp v0.5.6
+	github.com/googleapis/gax-go/v2 v2.1.1
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
+	google.golang.org/api v0.63.0
+	google.golang.org/genproto v0.0.0-20211221195035-429b39de9b1c
+	google.golang.org/grpc v1.40.1
+	google.golang.org/protobuf v1.27.1
+)

compute/go_mod_tidy_hack.go

@@ -0,0 +1,23 @@
+// Copyright 2022 Google LLC
+//
+// 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.
+
+// This file, and the cloud.google.com/go import, won't actually become part of
+// the resultant binary.
+//go:build modhack
+// +build modhack
+
+package compute
+
+// Necessary for safely adding multi-module repo. See: https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository
+import _ "cloud.google.com/go"

go.mod

@@ -3,6 +3,7 @@ module cloud.google.com/go
 go 1.11
 
 require (
+	cloud.google.com/go/compute v0.1.0
 	github.com/golang/protobuf v1.5.2
 	github.com/google/go-cmp v0.5.6
 	github.com/google/martian/v3 v3.2.1