Advanced examples

Patterns for fitting rational-release around real projects: mirrored changelogs, attached artefacts, gated pre-tasks, JSR / npm publish triggers, and using the CLI directly outside the workflows.

Pre-tasks: gating the release PR

pre-tasks is a newline-separated shell script that runs before the release PR is generated. If any line exits non-zero, the workflow fails and the release PR is not opened or updated. Use it as your release gate.

jobs:
  prepare:
    uses: sigmadigitalza/rational-release/.github/workflows/prepare-release.yml@v1
    with:
      pre-tasks: |
        deno fmt --check
        deno lint
        deno check src/mod.ts
        deno test --allow-read --allow-net

If you have a heavier integration suite, run it here too — the worst case is the release PR doesn’t open until the suite is green.

Mirroring the changelog into a docs site

Many projects keep a docs site that wants the changelog rendered alongside other pages. mirror-paths takes src:dst pairs and copies after changelog generation, so the doc page tracks the source of truth on every release-PR update.

with:
  mirror-paths: |
    CHANGELOG.md:docs/changelog.md
    CHANGELOG.md:website/src/pages/changelog.md

Adding generated files to the release commit

If your pre-tasks regenerates a search index, an OpenAPI spec, or a bundled CSS file, those files need to be part of the prepare commit so they ship with the release. List the paths in commit-paths:

with:
  pre-tasks: |
    deno task build      # writes ui/search-index.json and dist/openapi.json
  commit-paths: |
    ui/search-index.json
    dist/openapi.json

The version bump in the manifest, the changelog, and any mirrored paths are always staged automatically. commit-paths is purely additive.

Attaching artefacts to the GitHub Release

cut-release can run a build step after tagging and attach the result as release-asset downloads. Useful for binary distributions, source tarballs, or anything you’d normally upload by hand.

jobs:
  cut:
    uses: sigmadigitalza/rational-release/.github/workflows/cut-release.yml@v1
    with:
      artefact-task: deno task package
      artefact-paths: dist/*.tar.gz dist/checksums.txt

artefact-paths is a glob list. Anything matched is uploaded to the GitHub Release alongside the auto-generated source archives.

Triggering JSR / npm publish from cut-release

Tags pushed by cut-release use the default GITHUB_TOKEN. GitHub intentionally does not fire downstream push workflows from tokens-pushed events — loop prevention. So a publish workflow listening on push: tags: [v*] will never run.

The fix is workflow_run — allowed to fire from the same token-pushed event. workflow_run jobs run in a privileged context (they have repo secrets and, for JSR, id-token: write), so we don’t blindly check out the triggering workflow’s head_sha — CodeQL flags that as actions/untrusted-checkout. Instead, derive the version from the triggering branch (release/vX.Y.Z), check out the freshly-pushed tag, and verify the tag matches the manifest before publishing:

name: Publish to JSR
on:
  workflow_run:
    workflows: ["Cut Release"]    # must match name: in cut-release.yml exactly
    types: [completed]
permissions:
  contents: read
  id-token: write
jobs:
  publish:
    if: >-
      github.event.workflow_run.conclusion == 'success' &&
      startsWith(github.event.workflow_run.head_branch, 'release/v')
    runs-on: ubuntu-latest
    steps:
      - id: ver
        env: { HEAD_BRANCH: ${{ github.event.workflow_run.head_branch }} }
        run: |
          set -euo pipefail
          version="${HEAD_BRANCH#release/v}"
          [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] || { echo "::error::bad branch ${HEAD_BRANCH}"; exit 1; }
          echo "tag=v${version}" >> "$GITHUB_OUTPUT"
      - uses: actions/checkout@v4
        with: { ref: refs/tags/${{ steps.ver.outputs.tag }} }
      - uses: denoland/setup-deno@v2
        with: { deno-version: v2.x }
      - env: { TAG: ${{ steps.ver.outputs.tag }} }
        run: |
          set -euo pipefail
          v=$(deno eval --quiet --allow-read=deno.json 'console.log(JSON.parse(Deno.readTextFileSync("deno.json")).version)')
          [ "v${v}" = "$TAG" ] || { echo "::error::tag $TAG != manifest v${v}"; exit 1; }
      - run: deno publish

For npm, swap the last three steps for:

      - uses: actions/setup-node@v4
        with:
          node-version: "22"
          registry-url: "https://registry.npmjs.org"
      - env: { TAG: ${{ steps.ver.outputs.tag }} }
        run: |
          v=$(node -p "require('./package.json').version")
          [ "v${v}" = "$TAG" ] || { echo "::error::tag $TAG != manifest v${v}"; exit 1; }
      - run: npm publish --provenance --access public
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

Non-default manifest paths

Default is deno.json with $.version. Override either:

with:
  manifest-path: package.json
  manifest-jsonpath: $.version     # default; shown for clarity

manifest-jsonpath takes a dot-path: $.version, $.workspaces.api.version, etc. Array indexing and filters are not supported — the version field for any single package is always at a dotted-path location in the wild.

Using the CLI standalone

The CLI underneath the workflows ships on JSR and uses only node:* standard-library imports, so it runs on Deno, Node, and Bun unchanged. Useful for one-off tasks — computing the next version locally, extracting a single changelog section, or scripting outside GitHub Actions.

# Compute the next version from current commits
git log v1.2.3..HEAD --pretty=%s | \
  deno run -A jsr:@sigmadigitalza/rational-release \
    next-version deno.json

# Extract a single release’s notes
deno run -A jsr:@sigmadigitalza/rational-release \
  extract-section CHANGELOG.md 1.2.3

The full subcommand list:

Cloud agents and JSR

If you run releases from a cloud agent that operates behind a network allowlist (GitHub-hosted Copilot agents, sandboxed CI runners), make sure the agent can reach both of these hosts:

• https://dl.deno.land/ — the agent installs Deno from here before any CLI subcommand can run.
• https://jsr.io/ — the workflows resolve the CLI as jsr:@sigmadigitalza/rational-release from JSR.

For Copilot specifically, add both URLs in Settings → Copilot → Coding agent → Custom allowlist on the consumer repository (admins only). Without them, Copilot's review/PR-edit jobs will fail with a firewall block on dl.deno.land and never reach the CLI. On unrestricted GitHub-hosted Actions runners this is already the default, so no change is needed there.

Pinning to an exact version

Workflows reference @v1 by default — a moving tag that re-points on additive changes within the v1 input shape. If you want immutability:

uses: sigmadigitalza/rational-release/.github/workflows/prepare-release.yml@v1.0.0

Pinning loses you the implicit security patches that ride with @v1, but you trade that for total reproducibility. Either is reasonable; pick the trade consciously.