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release_prep.sh
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release_prep.sh
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#!/usr/bin/env bash
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=${GITHUB_REF_NAME}
# The prefix is chosen to match what GitHub generates for source archives
# This guarantees that users can easily switch from a released artifact to a source archive
# with minimal differences in their code (e.g. strip_prefix remains the same)
PREFIX="toolchains_protoc-${TAG:1}"
ARCHIVE="toolchains_protoc-$TAG.tar.gz"
# NB: configuration for 'git archive' is in /.gitattributes
git archive --format=tar --prefix=${PREFIX}/ ${TAG} | gzip > $ARCHIVE
SHA=$(shasum -a 256 $ARCHIVE | awk '{print $1}')
cat << EOF
## Using Bzlmod with Bazel 6 or later
1. (Bazel 6 only) Enable with \`common --enable_bzlmod\` in \`.bazelrc\`.
2. Add to your \`MODULE.bazel\` file:
\`\`\`starlark
bazel_dep(name = "toolchains_protoc", version = "${TAG:1}")
# Optional: choose a version of protoc rather than the latest.
protoc = use_extension("@toolchains_protoc//protoc:extensions.bzl", "protoc")
protoc.toolchain(
# Creates a repository to satisfy well-known-types dependencies such as
# deps=["@com_google_protobuf//:any_proto"]
google_protobuf = "com_google_protobuf",
# Pin to any version of protoc
version = "v26.0",
)
use_repo(protoc, "com_google_protobuf", "toolchains_protoc_hub")
register_toolchains("@toolchains_protoc_hub//:all")
\`\`\`
## 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 = "toolchains_protoc",
sha256 = "${SHA}",
strip_prefix = "${PREFIX}",
url = "https://github.com/aspect-build/toolchains_protoc/releases/download/${TAG}/${ARCHIVE}",
)
EOF
awk 'f;/--SNIP--/{f=1}' e2e/smoke/WORKSPACE.bazel
echo "\`\`\`"