release.yml

# Attempts to perform a release when a particular tag is pushed. This uses the
# release.sh script in the root of the repository, and assumes that the
# CRATES_TOKEN secret has been set and contains an API token with which we can
# publish our crates to crates.io.
#
# If release operation fails partway through due to a temporary error (e.g. the
# crate being published depends on the crate published just prior, but the
# prior crate isn't yet available via crates.io), one can simply rerun this
# workflow. The release.sh script aims to be an idempotent operation, skipping
# the publishing of crates that have already been published.
name: Release

on:
  push:
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"             # Push events to matching v*, i.e. v0.26.0, v1.0.0
      - "v[0-9]+.[0-9]+.[0-9]+-pre.[0-9]+"  # e.g. v0.26.0-pre.1

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: dtolnay/rust-toolchain@stable
      - name: Publish crates
        run: ./release.sh
        env:
          CRATES_TOKEN: ${{ secrets.CRATES_TOKEN }}