refactor: simplify release

Fixes #12

.github/workflows/release.yml

@@ -20,17 +20,12 @@ jobs:
           # Bazelisk will download bazel to here
           XDG_CACHE_HOME: ~/.cache/bazel-repo
         run: bazel --bazelrc=.github/workflows/ci.bazelrc --bazelrc=.bazelrc test //...
-      - name: Rename release artifact with version
-        run: cp $(ls bazel-out/*/bin/*.tar.gz | tail -1) "bazel_lib-$(git describe --tags | sed 's/^v//').tar.gz"
-      # TODO: move this into bazel to produce the file with expand_template rule when it has stamping
       - name: Prepare workspace snippet
-        run: |
-          echo -e "WORKSPACE snippet:\n\n\`\`\`starlark\nhttp_archive(\n    name = \"aspect_bazel_lib\"," > release_notes.txt
-          echo "    sha256 = \"$(shasum -a 256 *.tar.gz | awk '{print $1}')\"," >> release_notes.txt
-          echo -e "    url = \"https://github.com/aspect-build/bazel-lib/releases/download/$(git describe --tags)/$(ls *.tar.gz)\",\n)\n\`\`\`" >> release_notes.txt
+        run: .github/workflows/workspace_snippet.sh ${{ env.GITHUB_REF_NAME }} > release_notes.txt
       - name: Release
         uses: softprops/action-gh-release@v1
         with:
           prerelease: true
+          # Use GH feature to populate the changelog automatically
+          generate_release_notes: true
           body_path: release_notes.txt
-          files: "*.tar.gz"

BUILD.bazel

@@ -1,5 +1,4 @@
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
-load("@rules_pkg//:pkg.bzl", "pkg_tar")
 load("@bazel_gazelle//:def.bzl", "gazelle", "gazelle_binary")
 
 gazelle_binary(
@@ -12,21 +11,6 @@ gazelle(
     gazelle = "gazelle_bin",
 )
 
-# This declares the release artifact users
-pkg_tar(
-    name = "bazel_lib",
-    srcs = [
-        "README.md",
-        "//lib:package_content",
-    ],
-    extension = "tar.gz",
-    # It is all source code, so make it read-only.
-    mode = "0444",
-    # Make it owned by root so it does not have the uid of the CI robot.
-    owner = "0.0",
-    strip_prefix = ".",
-)
-
 bzl_library(
     name = "internal_deps",
     srcs = ["internal_deps.bzl"],

README.md

@@ -7,17 +7,6 @@ to review PRs there.
 
 ## Installation
 
-Include this in your WORKSPACE file:
-
-```starlark
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-http_archive(
-    name = "aspect_bazel_lib",
-    url = "https://github.com/myorg/bazel_lib/releases/download/0.0.0/bazel_lib-0.0.0.tar.gz",
-    sha256 = "",
-)
-```
-
-> note, in the above, replace the version and sha256 with the one indicated
-> in the release notes for bazel_lib
-> In the future, our release automation should take care of this.
+From the release you wish to use:
+<https://github.com/aspect-build/bazel-lib/releases>
+copy the WORKSPACE snippet into your `WORKSPACE` file.

internal_deps.bzl

@@ -9,16 +9,6 @@ load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
 
 def bazel_lib_internal_deps():
     "Fetch deps needed for local development"
-    maybe(
-        http_archive,
-        name = "rules_pkg",
-        urls = [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_pkg/releases/download/0.2.4/rules_pkg-0.2.4.tar.gz",
-            "https://github.com/bazelbuild/rules_pkg/releases/download/0.2.4/rules_pkg-0.2.4.tar.gz",
-        ],
-        sha256 = "4ba8f4ab0ff85f2484287ab06c0d871dcb31cc54d439457d28fd4ae14b18450a",
-    )
-
     maybe(
         http_archive,
         name = "build_bazel_integration_testing",