Add release workflow & license headers (bazelbuild#938)

* Add go releaser config

* Minor change

* Remove tags

* Add tag script

* chmod

* fix script

* release config update

* remove tag script

* comments & license headers

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+# Copyright 2021 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.
+#
+# Triggers a new Github release via Github Actions
+# (https://docs.github.com/en/actions/learn-github-actions/introduction-to-github-actions) and
+# using Go releaser (https://github.com/goreleaser/goreleaser) whenever a new tag is created in this
+# repository. The goal is to release pre-built binaries of the Go CLI tools hosted in this repo.
+# See .goreleaser.yml for the Go releaser config.
+name: goreleaser
+
+# Trigger only when a new tag is created.
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.15
+      -
+        name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yml

@@ -0,0 +1,52 @@
+# Copyright 2021 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.
+#
+# goreleaser config. See http://goreleaser.com for details. Builds and releases the Bazel C++/Java
+# remote execution toolchain generator as pre-built binaries.
+before:
+  # Make Go pre-download all dependencies before building any binaries to avoid clobbering parallel
+  # builds.
+  hooks:
+  - go mod download
+builds:
+- id: rbe_configs_gen
+  env:
+  main: ./cmd/rbe_configs_gen/rbe_configs_gen.go
+  binary: rbe_configs_gen
+  goos:
+      - linux
+      # Windows is untested.
+      - windows
+  goarch:
+      - amd64
+  # Set the binary timestamp to the commit timestamp it's being
+  # built from to make the produced binaries deterministic.
+  mod_timestamp: '{{ .CommitTimestamp }}'
+archives:
+-
+  # Only upload binary assets.
+  format: binary
+  # Define how the prebuilt binaries uploaded as release assets are named. The default includes the
+  # version string in the binary name which is redundant because it is already included in the
+  # release asset's URL.
+  name_template: "{{ .Binary }}_{{ .Os }}_{{ .Arch }}"
+
+checksum:
+  name_template: 'checksums.txt'
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'

cmd/rbe_configs_gen/rbe_configs_gen.go

@@ -1,3 +1,17 @@
+// Copyright 2021 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.
+//
 // Binary rbe_configs_gen provides the ability to generate toolchain targets along with a default
 // platform target to configure Bazel to run actions remotely.
 package main

cmd/rbe_configs_upload/rbe_configs_upload.go

@@ -1,3 +1,17 @@
+// Copyright 2021 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.
+//
 // Binary rbe_configs_upload uploads the artifacts generated by rbe_configs_gen to GCS. This tool
 // is meant for internal use by the owners of this repository only.
 // This tool will upload the given configs tarball & manifest to the following paths on GCS:

pkg/rbeconfigsgen/options.go

@@ -1,3 +1,17 @@
+// Copyright 2021 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.
+//
 // Package rbeconfigsgen contains utilities to generate C++ & Java Toolchain configs for Bazel to be
 // used to run RBE builds
 package rbeconfigsgen

pkg/rbeconfigsgen/rbeconfigsgen.go

@@ -1,3 +1,17 @@
+// Copyright 2021 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.
+//
 package rbeconfigsgen
 
 import (