Add release setup (#6)

Also lower the Bazel version requirement to 7.0.2 by opening up
`visibility`.

.bcr/config.yml

@@ -0,0 +1,3 @@
+fixedReleaser:
+  login: fmeum
+  email: [email protected]

.bcr/metadata.template.json

@@ -0,0 +1,12 @@
+{
+  "homepage": "https://github.com/buildbuddy-io/bazel_env.bzl",
+  "maintainers": [
+    {
+      "email": "[email protected]",
+      "github": "fmeum",
+      "name": "Fabian Meumertzheim"
+    }
+  ],
+  "versions": [],
+  "yanked_versions": {}
+}

.bcr/presubmit.yml

@@ -0,0 +1,14 @@
+bcr_test_module:
+  module_path: "examples"
+  matrix:
+    platform: ["debian10", "macos", "ubuntu2004"]
+    bazel: ["7.x"]
+  tasks:
+    run_tests:
+      name: "Run test module"
+      platform: ${{ platform }}
+      bazel: ${{ bazel }}
+      build_targets:
+        - "//..."
+      test_targets:
+        - "//..."

.bcr/source.template.json

@@ -0,0 +1,5 @@
+{
+  "integrity": "",
+  "strip_prefix": "",
+  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/bazel_env.bzl-{TAG}.tar.gz"
+}

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Test
+        working-directory: examples
+        run: bazelisk build //... && bazelisk test //...
+
+      - name: Build release artifacts and prepare release notes
+        run: |
+          .github/workflows/release_prep.sh ${{ env.GITHUB_REF_NAME }} > release_notes.txt
+
+      - name: Release
+        # Corresponds to the v2.0.5 tag.
+        uses: softprops/action-gh-release@69320dbe05506a9a39fc8ae11030b214ec2d1f87
+        with:
+          # Use GH feature to populate the changelog automatically
+          generate_release_notes: true
+          body_path: release_notes.txt
+          fail_on_unmatched_files: true
+          files: bazel_env.bzl-*.tar.gz

.github/workflows/release_prep.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+# Based on
+# https://github.com/bazel-contrib/rules-template/blob/a71e0a7624aa6e6fcde3d6623d3cb135fffbe28a/.github/workflows/release_prep.sh#L1
+
+set -o errexit -o nounset -o pipefail
+
+# Set by GH actions, see
+# https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+TAG=${GITHUB_REF_NAME}
+# The prefix is chosen to match what GitHub generates for source archives
+PREFIX="bazel_env.bzl-${TAG:1}"
+ARCHIVE="bazel_env.bzl-$TAG.tar.gz"
+git archive --prefix=${PREFIX}/ ${TAG} -o $ARCHIVE
+
+cat << 'EOF'
+Add to your \`MODULE.bazel\` file:
+
+```starlark
+bazel_dep(name = "bazel_env.bzl", version = "${TAG:1}")
+```
+EOF

.gitignore

@@ -1,2 +1,3 @@
 bazel-*
 MODULE.bazel.lock
+/.ijwb

BUILD.bazel

@@ -17,5 +17,6 @@ exports_files(
         "status.sh.tpl",
         "launcher.sh.tpl",
     ],
-    visibility = ["//visibility:private"],
+    # TODO: Switch to private visibility once the minimum supported Bazel version is 7.1.0.
+    visibility = ["//visibility:public"],
 )

MODULE.bazel

@@ -1,7 +1,7 @@
 module(
     name = "bazel_env.bzl",
     version = "0.0.0",
-    bazel_compatibility = [">=7.1.2"],
+    bazel_compatibility = [">=7.0.2"],
 )
 
 bazel_dep(name = "bazel_skylib", version = "1.6.1")

README.md

@@ -20,7 +20,7 @@ The [example](examples/) includes some commonly used tools and toolchains.
 bazel_dep(name = "bazel_env.bzl", dev_dependency = True)
 git_override(
     module_name = "bazel_env.bzl",
-    remote = "https://github.com/fmeum/bazel_env.bzl.git",
+    remote = "https://github.com/buildbuddy-io/bazel_env.bzl.git",
     commit = "<latest commit>",
 )
 ```