Integrate BCR release CI scripts

.bcr/source.template.json

@@ -1,5 +1,5 @@
 {
   "integrity": "",
-  "strip_prefix": "bazel_rules_detekt-{TAG}",
-  "url": "https://github.com/buildfoundation/bazel_rules_detekt/archive/refs/tags/{TAG}.tar.gz"
+  "strip_prefix": "{REPO}-{VERSION}",
+  "url": "https://github.com/{OWNER}/{REPO}/releases/download/{TAG}/bazel_rules_detekt-{TAG}.tar.gz"
 }

.github/workflows/main.yml

@@ -22,7 +22,7 @@ jobs:
       - name: "Linting Starlark"
         run: bazel run @buildifier_prebuilt//:buildifier -- -mode check -lint warn -r .
       - name: "Lint Shell files"
-        run: for file in $(find . -type f -name "*.sh"); do shellcheck $file; done;
+        run: for file in $(find . -type f -not -path ".github/*" -name "*.sh"); do shellcheck $file; done;
 
   build:
     runs-on: ubuntu-latest

.github/workflows/release.yml

@@ -0,0 +1,15 @@
+# Cut a release whenever a new tag is pushed to the repo.
+# You should use an annotated tag, like `git tag -a v1.2.3`
+# and put the release notes into the commit message for the tag.
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  release:
+    uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v4
+    with:
+      release_files: bazel_rules_detekt-*.tar.gz

.github/workflows/release_prep.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -o errexit -o nounset -o pipefail
+
+# Don't include tests in the release archive
+echo >>.git/info/attributes "tests export-ignore"
+
+# Set by GH actions, see
+# https://docs.github.com/en/actions/learn-github-actions/environment-variables#default-environment-variables
+TAG=${GITHUB_REF_NAME}
+# The prefix is chosen to match what GitHub generates for source archives
+PREFIX="bazel_rules_detekt-${TAG:1}"
+ARCHIVE="bazel_rules_detekt-$TAG.tar.gz"
+git archive --format=tar --prefix=${PREFIX}/ ${TAG} | gzip > $ARCHIVE
+SHA=$(shasum -a 256 $ARCHIVE | awk '{print $1}')
+
+cat << EOF
+## Using Bzlmod with Bazel 6
+
+1. Enable with \`common --enable_bzlmod\` in \`.bazelrc\`.
+2. Add to your \`MODULE.bazel\` file:
+
+\`\`\`starlark
+bazel_dep(name = "rules_detekt", version = "${TAG:1}")
+\`\`\`
+
+## Using WORKSPACE
+
+Paste this snippet into your `WORKSPACE.bazel` file:
+
+\`\`\`starlark
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+http_archive(
+    name = "rules_detekt",
+    sha256 = "${SHA}",
+    strip_prefix = "${PREFIX}",
+    url = "https://github.com/buildfoundation/bazel_rules_detekt/releases/download/${TAG}/${ARCHIVE}",
+)
+EOF
+
+echo "\`\`\`"