rust/src/ci/scripts/verify-stable-version-number.sh
Matthias Krüger 9f7c5dce21 Rollup merge of #93128 - pietroalbini:pa-verify-stable-version-number, r=Mark-Simulacrum
Add script to prevent point releases with same number as existing ones

This will hopefully prevent what happened today with #93110 and #93121, where we built point release artifacts without changing version numbers, thus requiring another PR to change the version number.

r? `@Mark-Simulacrum`
2022-01-25 12:04:23 -08:00

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#!/bin/bash
# On the stable channel, check whether we're trying to build artifacts with the
# same version number of a release that's already been published, and fail the
# build if that's the case.
#
# It's a mistake whenever that happens: the release process won't start if it
# detects a duplicate version number, and the artifacts would have to be
# rebuilt anyway.
set -euo pipefail
IFS=$'\n\t'
if [[ "$(cat src/ci/channel)" != "stable" ]]; then
echo "This script only works on the stable channel. Skipping the check."
exit 0
fi
version="$(cat src/version)"
url="https://static.rust-lang.org/dist/channel-rust-${version}.toml"
if curl --silent --fail "${url}" >/dev/null; then
echo "The version number ${version} matches an existing release."
echo
echo "If you're trying to prepare a point release, remember to change the"
echo "version number in the src/version file."
exit 1
else
echo "The version number ${version} does not match any released version!"
exit 0
fi