ci(release): publish the crate to crates.io from release.yml (rule 2)

.github/workflows/publish-crate.yml

@@ -0,0 +1,42 @@
+# Publish the crate to crates.io as part of the CLI release.
+#
+# This is a dist custom publish job: it is invoked BY `release.yml` (wired via
+# `publish-jobs` in dist-workspace.toml), so the crates.io publish is owned by
+# the CLI release workflow — doctrine/delivery/RULES.md:2. It runs only in the
+# publish phase of a real `vX.Y.Z` tag release, never on a PR.
+#
+# Prerequisite: a repository secret `CARGO_REGISTRY_TOKEN` (a crates.io API
+# token with publish scope).
+name: Publish crate
+
+on:
+  workflow_call:
+    inputs:
+      plan:
+        description: The dist release plan (JSON); passed by dist, unused here.
+        required: true
+        type: string
+
+jobs:
+  publish-crate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      # doctrine/delivery/RULES.md:6 — the release aborts unless the git tag,
+      # Cargo.toml, and Chart.yaml versions all agree.
+      - name: Verify tag == Cargo.toml == Chart.yaml
+        run: |
+          ver="${GITHUB_REF_NAME#v}"
+          cargo_ver="$(grep -m1 '^version = ' Cargo.toml | sed -E 's/.*"([^"]+)".*/\1/')"
+          chart_ver="$(grep -m1 '^version: ' benchmarks/_chart/Chart.yaml | awk '{print $2}')"
+          echo "tag=$ver  cargo=$cargo_ver  chart=$chart_ver"
+          if [ "$ver" != "$cargo_ver" ] || [ "$ver" != "$chart_ver" ]; then
+            echo "::error::release version mismatch (tag=$ver cargo=$cargo_ver chart=$chart_ver) — bump Cargo.toml and benchmarks/_chart/Chart.yaml to $ver before tagging"
+            exit 1
+          fi
+
+      - name: cargo publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: cargo publish --locked

.github/workflows/release.yml

@@ -278,14 +278,29 @@ jobs:
 
           gh release create "${{ needs.plan.outputs.tag }}" --target "$RELEASE_COMMIT" $PRERELEASE_FLAG --title "$ANNOUNCEMENT_TITLE" --notes-file "$RUNNER_TEMP/notes.txt" artifacts/*
 
+  custom-publish-crate:
+    needs:
+      - plan
+      - host
+    if: ${{ !fromJson(needs.plan.outputs.val).announcement_is_prerelease || fromJson(needs.plan.outputs.val).publish_prereleases }}
+    uses: ./.github/workflows/publish-crate.yml
+    with:
+      plan: ${{ needs.plan.outputs.val }}
+    secrets: inherit
+    # publish jobs get escalated permissions
+    permissions:
+      "id-token": "write"
+      "packages": "write"
+
   announce:
     needs:
       - plan
       - host
+      - custom-publish-crate
     # use "always() && ..." to allow us to wait for all publish jobs while
     # still allowing individual publish jobs to skip themselves (for prereleases).
     # "host" however must run to completion, no skipping allowed!
-    if: ${{ always() && needs.host.result == 'success' }}
+    if: ${{ always() && needs.host.result == 'success' && (needs.custom-publish-crate.result == 'skipped' || needs.custom-publish-crate.result == 'success') }}
     runs-on: "ubuntu-22.04"
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

dist-workspace.toml

@@ -17,3 +17,6 @@ install-path = "CARGO_HOME"
 hosting = "github"
 # Whether to install an updater program
 install-updater = false
+# Publish the crate to crates.io as part of the release (doctrine/delivery/RULES.md:2).
+# Custom job in .github/workflows/publish-crate.yml; needs a CARGO_REGISTRY_TOKEN secret.
+publish-jobs = ["./publish-crate"]