release-please.yml

name: release-please

# Maintains a single open "release PR" on main that bumps all workspace
# versions, updates per-crate CHANGELOG.md files, and updates the
# .release-please-manifest.json based on Conventional Commits since the
# last release. Merging that PR creates a GitHub Release and a v{X.Y.Z}
# tag.
#
# Uses a fine-grained PAT (RELEASE_PLEASE_TOKEN) instead of the default
# GITHUB_TOKEN so that PRs and tags created by this workflow trigger
# downstream CI and publish workflows. With GITHUB_TOKEN, GitHub
# suppresses workflow triggers on events it creates (anti-recursion).
#
# After release-please opens or updates the release PR, a follow-up
# step reconciles Cargo.lock against the bumped Cargo.toml and pushes
# the lockfile commit onto the release-please branch. Without this,
# the release tag points at a tree where Cargo.toml is at the new
# version but Cargo.lock still pins the previous one; CI's
# `cargo build --release` then silently rewrites the lockfile in-place
# at build time, dirtying the worktree, and `build.rs` stamps a
# `-dirty-<timestamp>` marker onto the released binary. Keeping the
# lockfile in sync at release-PR time avoids that. (`build.rs` also
# excludes Cargo.lock from its dirty check as a safety net.)
#
# A defense-in-depth sentinel verifies the lockfile diff only touches
# workspace-member version rows. If a future cargo version touches
# non-workspace rows (or bumps the lockfile format version), the
# sentinel ABORTS the workflow and blocks the release; resolve by
# either updating the sentinel or landing the dep bump on main first
# as its own commit.
#
# Maintainers don't run anything by hand:
#   1. Land conventional-commit PRs into main.
#   2. Merge the release-please PR when ready to ship.
#
# See docs/GITHUB_OPERATIONS.md → "Cutting a release" for details.

on:
  push:
    branches: [main]
  workflow_dispatch: {}

# Serialize runs so the lockfile-sync push doesn't race a concurrent
# `release-please` run pointed at the same release branch.
concurrency:
  group: release-please
  cancel-in-progress: false

permissions:
  contents: write
  pull-requests: write

jobs:
  release-please:
    if: github.repository == 'tableau/hyper-api-rust'
    runs-on: ubuntu-latest
    steps:
      - uses: googleapis/release-please-action@v5
        id: release
        with:
          config-file: release-please-config.json
          manifest-file: .release-please-manifest.json
          token: ${{ secrets.RELEASE_PLEASE_TOKEN }}

      # release-please-action@v5 calls manifest.createPullRequests()
      # which routes through `createOrUpdatePullRequest` — the action
      # emits its `pr` JSON output on BOTH first creation and any
      # subsequent update from a later push to main. Verified by
      # reading the action source.
      #
      # The `pr != ''` gate fires whenever there's a release PR after
      # this run, so we get a re-sync opportunity each time release-
      # please re-runs. If release-please force-pushes the release
      # branch (it does — its bot commits get rewritten on each
      # re-run) and clobbers our prior lockfile-sync commit, this
      # follow-up step re-fires on the SAME run and re-pushes the
      # synced lockfile. The eventually-merged release PR head is
      # always lockfile-synced. The build.rs Cargo.lock pathspec
      # exclusion is the safety net that protects the released
      # binary even if a maintainer merges in a tiny window between
      # release-please's force-push and our follow-up step landing.
      # Extract the release-please branch name into its own step
      # output. We can't reference `fromJson(steps.release.outputs.pr)`
      # directly in `ref:` / `env:` further down, because GitHub
      # Actions evaluates every `${{ }}` expression in the workflow
      # at job-load time — even on steps gated by `if:` that won't
      # run. When `pr` is empty (no release PR this run),
      # `fromJson('')` errors with "Error reading JToken from
      # JsonReader." Wrapping the parse in a `run:` block keeps it
      # inside the `if`-gate.
      - name: Resolve release-please branch name
        id: branch
        if: ${{ steps.release.outputs.pr != '' }}
        env:
          PR_JSON: ${{ steps.release.outputs.pr }}
        run: |
          set -euo pipefail
          BRANCH=$(printf '%s' "$PR_JSON" | jq -r '.headBranchName')
          if [ -z "$BRANCH" ] || [ "$BRANCH" = "null" ]; then
            echo "::error::Could not extract headBranchName from release-please output"
            printf '%s\n' "$PR_JSON" | head -5
            exit 1
          fi
          echo "name=$BRANCH" >> "$GITHUB_OUTPUT"

      - name: Checkout release-please branch
        if: ${{ steps.release.outputs.pr != '' }}
        uses: actions/checkout@v7
        with:
          ref: ${{ steps.branch.outputs.name }}
          token: ${{ secrets.RELEASE_PLEASE_TOKEN }}

      - uses: actions-rust-lang/setup-rust-toolchain@v1
        if: ${{ steps.release.outputs.pr != '' }}
        with:
          toolchain: stable
          cache: false   # one-shot job; cache adds latency without benefit
          rustflags: ""

      # `cargo metadata --format-version=1` forces a lockfile
      # reconciliation pass against the current Cargo.tomls. Empirically
      # validated on this workspace: it flips exactly the 9 path-crate
      # version rows in the root lockfile (hyperdb-api, hyperdb-api-core,
      # hyperdb-api-derive, hyperdb-api-node, hyperdb-api-salesforce,
      # hyperdb-bootstrap, hyperdb-mcp, sea-query-hyperdb, and
      # hyperdb-compile-check — the last is its own workspace but is
      # still a path dep in the root lock) and touches no external dep
      # rows. The "Verify lockfile diff is workspace-only" sentinel below
      # catches it if a future cargo version diverges.
      #
      # Why not `cargo generate-lockfile`: it does a full re-resolve
      # and bumps unrelated transitive deps to their latest semver
      # (verified: bumps `crypto-common`, `matchit`, et al. on this
      # workspace, plus changes the lockfile format version). That's
      # noisy in a release commit.
      #
      # Why not `cargo update --workspace [--offline]`: `--workspace`
      # doesn't prevent external dep re-resolution from the cache,
      # and `--offline` makes it brittle.
      # NOTE: this step intentionally does NOT install protoc / system
      # libs. `cargo metadata` only resolves the dependency graph — it
      # does not compile build.rs or proc-macros. Do NOT extend this
      # step to run `cargo build` / `cargo check` without first
      # installing the system libraries used by the test/release
      # workflows (libfontconfig1-dev, mold, protobuf-compiler).
      - name: Sync Cargo.lock with bumped workspace versions
        if: ${{ steps.release.outputs.pr != '' }}
        run: cargo metadata --format-version=1 > /dev/null

      # Sentinel: fail loudly if the lockfile diff touches anything
      # other than workspace-member version rows. Two-layer check:
      #   1. The lockfile format-version line (`version = N` at the
      #      top, unquoted integer) must NOT change. Format bumps
      #      come from full re-resolves like `cargo generate-lockfile`,
      #      not from a metadata reconciliation pass — if we see one,
      #      something has gone sideways.
      #   2. Every changed `[[package]]` block's name must be a
      #      workspace member, derived at runtime from `cargo metadata`
      #      so a future workspace addition / rename / removal stays
      #      automatically in sync (no separate hard-coded list to
      #      maintain).
      #
      # Defense against a future cargo version that decides to bump
      # transitive deps during what should be a workspace-only sync.
      - name: Verify lockfile diff is workspace-only
        if: ${{ steps.release.outputs.pr != '' }}
        run: |
          set -euo pipefail
          if git diff --quiet -- Cargo.lock; then
            echo "Cargo.lock unchanged — nothing to verify."
            exit 0
          fi
          # Layer 1: catch lockfile-format-version changes. The
          # top-of-file `version = 4` line is unquoted; package
          # versions are always quoted (`version = "0.2.1"`). A
          # `^[+-]version = [0-9]+$` line in the diff is necessarily
          # the format header.
          if git diff -- Cargo.lock | grep -Eq '^[+-]version = [0-9]+$'; then
            echo "::error::Cargo.lock format version changed — refusing to commit."
            git diff -- Cargo.lock | head -10
            exit 1
          fi
          # Layer 2: enumerate workspace members at runtime, then
          # check each name appearing in the diff is in that set.
          # `select(.source==null)` filters out registry packages.
          #
          # hyperdb-compile-check is deliberately NOT a member of the root
          # workspace (it declares its own `[workspace]` so it can build/test
          # standalone), so root `cargo metadata` omits it — yet it IS a path
          # crate in the root lockfile and gets a version bump on release. Union
          # in its own workspace's members so the guard doesn't false-positive
          # on it. Both sides are runtime-derived, so workspace additions stay
          # automatically in sync with no hard-coded list.
          WORKSPACE=$( { \
              cargo metadata --no-deps --format-version=1; \
              cargo metadata --no-deps --format-version=1 \
                --manifest-path hyperdb-compile-check/Cargo.toml; \
            } \
            | jq -r '.packages[] | select(.source==null) | .name' \
            | sort -u)
          CHANGED=$(git diff -U1 -- Cargo.lock \
            | awk '/^ name = / { gsub(/"/, "", $3); name=$3 } /^[+-]version = / { print name }' \
            | sort -u)
          UNEXPECTED=""
          for pkg in $CHANGED; do
            case " $(echo $WORKSPACE | tr '\n' ' ') " in
              *" $pkg "*) ;;
              *) UNEXPECTED="$UNEXPECTED $pkg" ;;
            esac
          done
          if [ -n "$UNEXPECTED" ]; then
            echo "::error::Cargo.lock sync touched non-workspace packages:$UNEXPECTED"
            git diff -- Cargo.lock | head -120
            exit 1
          fi
          echo "Cargo.lock changes touched only workspace members:"
          echo "$CHANGED"

      - name: Commit Cargo.lock if changed
        if: ${{ steps.release.outputs.pr != '' }}
        run: |
          set -euo pipefail
          if git diff --quiet -- Cargo.lock; then
            echo "Cargo.lock already in sync — no commit needed."
            exit 0
          fi
          # github-actions[bot] is the canonical identity for
          # workflow-authored commits. Verified against this repo's
          # log: prior release-please commits were authored under
          # the user's PAT (no bot account exists), so we can't
          # match the existing style automatically — github-actions[bot]
          # is unambiguous and reads correctly in the PR history.
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add Cargo.lock
          git commit -m "chore: sync Cargo.lock with bumped workspace versions"
          # Explicit refspec — don't rely on actions/checkout's
          # tracking branch staying the default in future versions.
          git push origin "HEAD:${BRANCH}"
        env:
          BRANCH: ${{ steps.branch.outputs.name }}