ref(cli): move the recipe glob and renderer into src/prompts #92
Workflow file for this run
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # SPDX-License-Identifier: MIT | |
| # Adapted from the taskless/taskless stack-breadcrumb workflow and brought into | |
| # this repository under its MIT license, with permission. | |
| name: Stack Breadcrumb | |
| # Self-contained stacked-PR breadcrumb. All logic lives in a zero-dependency | |
| # module (.github/scripts/stack-breadcrumb.cjs) that each job loads via | |
| # actions/github-script — no pnpm/tsx/package install, no build step. | |
| # | |
| # Two stages keep reconciliation serialized per stack root: | |
| # STAGE 1 (dispatch) — on PR shape-change events, resolve the affected | |
| # root(s) and fire a `repository_dispatch`. | |
| # STAGE 2 (reconcile) — on that dispatch (or a manual `workflow_dispatch`), | |
| # render and propagate the breadcrumb, serialized per | |
| # root, AND "true" the stack: re-run any stale | |
| # `stack`-prefixed check that a shape change left failing | |
| # on a PR that is no longer the tip. | |
| # | |
| # Two CARRY jobs run on a member's MERGE, embedding the merged PR's body into a | |
| # surviving PR as a keyed `<!-- PR:N -->` region below the tree: | |
| # CARRY-FORWARD (merge into a NON-default base, tip→root) — an atomic collapse | |
| # accumulates the merged CHILD into its parent ("Contains #N"). | |
| # CARRY-BACKWARD (merge into the DEFAULT branch, root→tip) — an incremental | |
| # land absorbs the merged PARENT into the redirected root (the | |
| # child GitHub retargets onto the default branch), headed | |
| # "Built on top of #N". | |
| # Either way the PR that finally reaches the default branch holds the full stack | |
| # legacy; a merge with no surviving stack neighbour is a clean no-op. | |
| # | |
| # Stage 1 fires the dispatch with the built-in GITHUB_TOKEN: although that token | |
| # normally suppresses recursive workflow runs, `repository_dispatch` is a | |
| # documented exception, so stage 2 fires. NOTE: `repository_dispatch` always runs | |
| # from the DEFAULT BRANCH's copy of this file, so the live breadcrumb (driven by | |
| # PR events → dispatch → reconcile) activates only once this is merged to `main`. | |
| # `workflow_dispatch` instead runs from the branch you select in the "Run | |
| # workflow" menu, so it can be used to test the reconcile stage before merge. | |
| on: | |
| pull_request: | |
| # Tree SHAPE only — no `synchronize` (a head push never changes membership). | |
| types: [opened, reopened, edited, closed] | |
| repository_dispatch: | |
| types: [stack-reconcile] | |
| workflow_dispatch: | |
| inputs: | |
| root: | |
| description: "Root PR number to reconcile (leave empty to reconcile all open stacks)" | |
| required: false | |
| default: "" | |
| # Permissions are least-privilege per job: stage 1 only POSTs a dispatch; only | |
| # stage 2 writes PR bodies. | |
| permissions: {} | |
| jobs: | |
| dispatch: | |
| name: Resolve root and dispatch reconcile | |
| # Skip fork PRs (read-only token) and the bot's own body edits. The built-in | |
| # GITHUB_TOKEN already won't retrigger workflows, but the actor guard makes | |
| # the no-loop guarantee explicit for any non-token edit too. | |
| if: >- | |
| github.event_name == 'pull_request' | |
| && github.event.pull_request.head.repo.full_name == github.repository | |
| && github.event.sender.login != 'github-actions[bot]' | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: write # required to POST repository_dispatch | |
| pull-requests: read # walk the tree | |
| concurrency: | |
| group: stack-breadcrumb-dispatch-${{ github.event.pull_request.number }} | |
| cancel-in-progress: true | |
| steps: | |
| # Check out the DEFAULT branch's copy of the script, not the PR head: this | |
| # privileged job (contents: write) must run trusted, reviewed logic, never | |
| # PR-supplied code. | |
| - uses: actions/checkout@v4 | |
| with: | |
| ref: ${{ github.event.repository.default_branch }} | |
| - uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const scriptPath = `${process.env.GITHUB_WORKSPACE}/.github/scripts/stack-breadcrumb.cjs`; | |
| let stack; | |
| try { | |
| stack = require(scriptPath); | |
| } catch (error) { | |
| // Bootstrap: before this workflow is on the default branch the | |
| // script isn't there yet. Skip rather than fail. | |
| if (error.code === "MODULE_NOT_FOUND") { | |
| core.info("stack-breadcrumb script not on the default branch yet; skipping until merged."); | |
| return; | |
| } | |
| throw error; | |
| } | |
| const { owner, repo } = context.repo; | |
| const defaultBranch = (await github.rest.repos.get({ owner, repo })).data.default_branch; | |
| const rawPulls = await github.paginate(github.rest.pulls.list, { | |
| owner, repo, state: "open", per_page: 100, | |
| }); | |
| // Same-repo PRs only: the tree keys parents by branch name, so a fork | |
| // PR sharing a branch name would corrupt root resolution. | |
| const pullRequests = rawPulls | |
| .filter((pr) => pr.head.repo?.full_name === `${owner}/${repo}`) | |
| .map((pr) => ({ | |
| number: pr.number, | |
| title: pr.title, | |
| headRefName: pr.head.ref, | |
| baseRefName: pr.base.ref, | |
| body: pr.body ?? "", | |
| })); | |
| const trigger = { | |
| number: context.payload.pull_request.number, | |
| baseRefName: context.payload.pull_request.base.ref, | |
| }; | |
| const roots = stack.resolveAffectedRoots(trigger, pullRequests, defaultBranch); | |
| if (roots.length === 0) { | |
| core.info(`PR #${trigger.number} affects no open stack; nothing to dispatch`); | |
| return; | |
| } | |
| for (const root of roots) { | |
| await github.rest.repos.createDispatchEvent({ | |
| owner, repo, event_type: "stack-reconcile", client_payload: { root }, | |
| }); | |
| core.info(`dispatched reconcile for root #${root}`); | |
| } | |
| carry-forward: | |
| name: Carry a merged PR's body into its parent | |
| # On a stack member's MERGE, embed its body into its parent PR as a keyed | |
| # `<!-- PR:N -->` region below the tree, so an atomic collapse (tip→root) | |
| # accumulates the full legacy on the PR that finally lands on the default | |
| # branch. Incremental delivery (each PR merges straight to the default | |
| # branch) has no open parent PR to carry into → a clean no-op. | |
| if: >- | |
| github.event_name == 'pull_request' | |
| && github.event.action == 'closed' | |
| && github.event.pull_request.merged == true | |
| && github.event.pull_request.base.ref != github.event.repository.default_branch | |
| && github.event.pull_request.head.repo.full_name == github.repository | |
| && github.event.sender.login != 'github-actions[bot]' | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read # actions/checkout needs this (top-level permissions: {} grants no defaults) | |
| pull-requests: write # edit the parent PR body | |
| concurrency: | |
| # Serialize per PARENT branch (the body we write); convergent upserts make | |
| # this safe, and we must not cancel a carry mid-write. | |
| group: stack-carry-forward-${{ github.event.pull_request.base.ref }} | |
| cancel-in-progress: false | |
| steps: | |
| # Trusted script from the default branch — never PR-supplied code. | |
| - uses: actions/checkout@v4 | |
| with: | |
| ref: ${{ github.event.repository.default_branch }} | |
| - uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const scriptPath = `${process.env.GITHUB_WORKSPACE}/.github/scripts/stack-breadcrumb.cjs`; | |
| let stack; | |
| try { | |
| stack = require(scriptPath); | |
| } catch (error) { | |
| if (error.code === "MODULE_NOT_FOUND") { | |
| core.info("stack-breadcrumb script not on the default branch yet; skipping until merged."); | |
| return; | |
| } | |
| throw error; | |
| } | |
| const { owner, repo } = context.repo; | |
| const merged = context.payload.pull_request; | |
| // The parent is the open PR whose head branch is this PR's base. | |
| const rawPulls = await github.paginate(github.rest.pulls.list, { | |
| owner, repo, state: "open", per_page: 100, | |
| }); | |
| const parent = rawPulls.find( | |
| (pr) => | |
| pr.head.repo?.full_name === `${owner}/${repo}` && | |
| pr.head.ref === merged.base.ref | |
| ); | |
| if (!parent) { | |
| core.info(`#${merged.number} merged into "${merged.base.ref}", which has no open parent PR — nothing to carry (incremental land).`); | |
| return; | |
| } | |
| // Fetch fresh bodies — the event payload can lag a last-moment edit. | |
| const [{ data: mergedFresh }, { data: parentFresh }] = await Promise.all([ | |
| github.rest.pulls.get({ owner, repo, pull_number: merged.number }), | |
| github.rest.pulls.get({ owner, repo, pull_number: parent.number }), | |
| ]); | |
| const newBody = stack.carryForward( | |
| parentFresh.body ?? "", | |
| merged.number, | |
| mergedFresh.body ?? "" | |
| ); | |
| if (newBody === (parentFresh.body ?? "")) { | |
| core.info(`#${merged.number} already carried into #${parent.number}; nothing to do.`); | |
| return; | |
| } | |
| await github.rest.pulls.update({ owner, repo, pull_number: parent.number, body: newBody }); | |
| core.info(`carried #${merged.number} into parent #${parent.number}`); | |
| carry-backward: | |
| name: Absorb a merged parent into the redirected root | |
| # On a member's merge INTO THE DEFAULT BRANCH (an incremental forward land), | |
| # embed the merged PR's body into the open child that was built on it — the | |
| # PR GitHub retargets onto the default branch to become the new root — as a | |
| # keyed `<!-- PR:N -->` region headed "Built on top of #N". A merge to the | |
| # default branch with no such child (a standalone PR, or the genuine last | |
| # slice) has nothing to absorb into → a clean no-op. | |
| if: >- | |
| github.event_name == 'pull_request' | |
| && github.event.action == 'closed' | |
| && github.event.pull_request.merged == true | |
| && github.event.pull_request.base.ref == github.event.repository.default_branch | |
| && github.event.pull_request.head.repo.full_name == github.repository | |
| && github.event.sender.login != 'github-actions[bot]' | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read # actions/checkout needs this (top-level permissions: {} grants no defaults) | |
| pull-requests: write # edit the redirected-root PR body | |
| concurrency: | |
| # Serialize retries of THIS merge event; convergent upserts make it safe, | |
| # and we must not cancel an absorb mid-write. | |
| group: stack-carry-backward-${{ github.event.pull_request.number }} | |
| cancel-in-progress: false | |
| steps: | |
| # Trusted script from the default branch — never PR-supplied code. | |
| - uses: actions/checkout@v4 | |
| with: | |
| ref: ${{ github.event.repository.default_branch }} | |
| - uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const scriptPath = `${process.env.GITHUB_WORKSPACE}/.github/scripts/stack-breadcrumb.cjs`; | |
| let stack; | |
| try { | |
| stack = require(scriptPath); | |
| } catch (error) { | |
| if (error.code === "MODULE_NOT_FOUND") { | |
| core.info("stack-breadcrumb script not on the default branch yet; skipping until merged."); | |
| return; | |
| } | |
| throw error; | |
| } | |
| const { owner, repo } = context.repo; | |
| const merged = context.payload.pull_request; | |
| const defaultBranch = context.payload.repository.default_branch; | |
| // The redirected root is the open child built on the merged PR. Find | |
| // it two ways, because merging the root may have deleted its head | |
| // branch and made GitHub retarget the child onto the default branch: | |
| // 1. base still points at the merged root's head branch (branch | |
| // not deleted, or the retarget hasn't landed yet); | |
| // 2. otherwise the child's breadcrumb marker records the merged PR | |
| // as its parent, and its base is now the default branch. | |
| // A branching stack can have several such children (each becomes an | |
| // independent root); absorb the parent into every one. | |
| const rawPulls = await github.paginate(github.rest.pulls.list, { | |
| owner, repo, state: "open", per_page: 100, | |
| }); | |
| const sameRepo = rawPulls.filter( | |
| (pr) => pr.head.repo?.full_name === `${owner}/${repo}` | |
| ); | |
| const children = sameRepo.filter((pr) => { | |
| if (pr.base.ref === merged.head.ref) return true; | |
| if (pr.base.ref !== defaultBranch) return false; | |
| const marker = stack.parseStackComment(pr.body ?? ""); | |
| return marker !== undefined && marker.parents.get(pr.number) === merged.number; | |
| }); | |
| if (children.length === 0) { | |
| core.info(`#${merged.number} merged into "${merged.base.ref}" with no open child built on it — nothing to absorb (standalone or last slice).`); | |
| return; | |
| } | |
| // Fetch the merged body fresh — the event payload can lag a | |
| // last-moment edit. | |
| const { data: mergedFresh } = await github.rest.pulls.get({ | |
| owner, repo, pull_number: merged.number, | |
| }); | |
| for (const child of children) { | |
| const { data: childFresh } = await github.rest.pulls.get({ | |
| owner, repo, pull_number: child.number, | |
| }); | |
| const newBody = stack.carryBackward( | |
| childFresh.body ?? "", | |
| merged.number, | |
| mergedFresh.body ?? "" | |
| ); | |
| if (newBody === (childFresh.body ?? "")) { | |
| core.info(`#${merged.number} already absorbed into #${child.number}; nothing to do.`); | |
| continue; | |
| } | |
| await github.rest.pulls.update({ owner, repo, pull_number: child.number, body: newBody }); | |
| core.info(`absorbed #${merged.number} into redirected root #${child.number}`); | |
| } | |
| reconcile: | |
| name: Reconcile breadcrumb across the stack | |
| if: github.event_name == 'repository_dispatch' || github.event_name == 'workflow_dispatch' | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read # checkout | |
| pull-requests: write # edit PR bodies | |
| actions: write # re-run stale stack-dependent checks ("trueing" the stack) | |
| # One reconcile per root at a time. A burst for one root collapses to the | |
| # latest run; convergent writes make cancellation safe. | |
| concurrency: | |
| group: stack-reconcile-${{ github.event.client_payload.root || github.event.inputs.root || 'all' }} | |
| cancel-in-progress: true | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const stack = require(`${process.env.GITHUB_WORKSPACE}/.github/scripts/stack-breadcrumb.cjs`); | |
| const { owner, repo } = context.repo; | |
| const defaultBranch = (await github.rest.repos.get({ owner, repo })).data.default_branch; | |
| const rawPulls = await github.paginate(github.rest.pulls.list, { | |
| owner, repo, state: "open", per_page: 100, | |
| }); | |
| // Same-repo PRs only: a fork PR sharing a branch name would corrupt | |
| // branch-name-keyed tree derivation. | |
| const pullRequests = rawPulls | |
| .filter((pr) => pr.head.repo?.full_name === `${owner}/${repo}`) | |
| .map((pr) => ({ | |
| number: pr.number, | |
| title: pr.title, | |
| headRefName: pr.head.ref, | |
| baseRefName: pr.base.ref, | |
| body: pr.body ?? "", | |
| state: "open", | |
| headSha: pr.head.sha, | |
| })); | |
| // Preserve construction history: pull in stack members recorded in | |
| // existing breadcrumb markers that are no longer open (merged/closed), | |
| // so the tree keeps listing them and the last open PR captures the | |
| // whole stack. Their bodies are frozen (reconcile never rewrites a | |
| // non-open member); they're fetched only for tree structure/rendering. | |
| // Root resolution below still uses the open-PR list only. | |
| const openNumbers = new Set(pullRequests.map((pr) => pr.number)); | |
| const historicalNumbers = new Set(); | |
| for (const pr of pullRequests) { | |
| const marker = stack.parseStackComment(pr.body); | |
| if (!marker) continue; | |
| for (const member of marker.members) { | |
| // Guard against a malformed marker (non-positive / non-integer) | |
| // and skip members that are already open. | |
| if (Number.isInteger(member) && member > 0 && !openNumbers.has(member)) { | |
| historicalNumbers.add(member); | |
| } | |
| } | |
| } | |
| // PR bodies are user-editable, so a crafted/malformed marker could | |
| // list many members; cap the historical fetch defensively (with a log). | |
| const MAX_HISTORICAL_MEMBERS = 50; | |
| let historicalList = [...historicalNumbers].toSorted((a, b) => a - b); | |
| if (historicalList.length > MAX_HISTORICAL_MEMBERS) { | |
| core.info(`stack-breadcrumb: marker lists ${historicalList.length} historical members; capping at ${MAX_HISTORICAL_MEMBERS}`); | |
| historicalList = historicalList.slice(0, MAX_HISTORICAL_MEMBERS); | |
| } | |
| // Fetch in parallel (bounded by the cap above); keep same-repo PRs. | |
| const fetched = ( | |
| await Promise.all( | |
| historicalList.map(async (number) => { | |
| try { | |
| const { data: pr } = await github.rest.pulls.get({ owner, repo, pull_number: number }); | |
| if (pr.head.repo?.full_name !== `${owner}/${repo}`) return undefined; | |
| return { | |
| number: pr.number, | |
| title: pr.title, | |
| headRefName: pr.head.ref, | |
| baseRefName: pr.base.ref, | |
| body: pr.body ?? "", | |
| state: pr.state, // "closed" (merged or closed) — freezes rewrites | |
| }; | |
| } catch (error) { | |
| core.info(`stack-breadcrumb: could not fetch historical PR #${number}: ${String(error)}`); | |
| return undefined; | |
| } | |
| }) | |
| ) | |
| ).filter((pr) => pr !== undefined); | |
| // The tree is keyed by headRefName, so admit a historical PR only if | |
| // its head ref is not already claimed — by an open PR OR an earlier | |
| // historical one. A reused branch name would otherwise corrupt tree | |
| // derivation. | |
| const claimedHeadRefs = new Set(pullRequests.map((pr) => pr.headRefName)); | |
| const historical = []; | |
| for (const pr of fetched) { | |
| if (claimedHeadRefs.has(pr.headRefName)) { | |
| core.info(`stack-breadcrumb: skipping historical PR #${pr.number}; head ref "${pr.headRefName}" already claimed by another PR`); | |
| continue; | |
| } | |
| claimedHeadRefs.add(pr.headRefName); | |
| historical.push(pr); | |
| } | |
| const allPullRequests = [...pullRequests, ...historical]; | |
| const writeBody = async (number, body) => { | |
| await github.rest.pulls.update({ owner, repo, pull_number: number, body }); | |
| }; | |
| // Root values can arrive as strings (dispatch payloads) or typos | |
| // (manual input); coerce to a positive integer. | |
| const parseRoot = (value) => { | |
| const parsed = Number(value); | |
| return Number.isInteger(parsed) && parsed > 0 ? parsed : undefined; | |
| }; | |
| // repository_dispatch always carries client_payload.root (stage 1 sets | |
| // it); workflow_dispatch carries inputs.root (empty → reconcile all). | |
| let roots; | |
| if (context.eventName === "repository_dispatch") { | |
| const root = parseRoot(context.payload.client_payload?.root); | |
| if (root === undefined) { | |
| core.setFailed(`repository_dispatch requires a positive integer client_payload.root; got ${JSON.stringify(context.payload.client_payload?.root)}`); | |
| return; | |
| } | |
| // The root came from stage 1 but the stack may have shifted since. | |
| const actualRoot = stack.findRoot(root, pullRequests, defaultBranch); | |
| if (actualRoot === undefined) { | |
| // Documented race: the root merged/closed between dispatch and | |
| // reconcile. Safe, explicit no-op — a later event re-resolves. | |
| core.info(`root #${root} is no longer an open PR; nothing to reconcile.`); | |
| return; | |
| } | |
| // Normalize to the current true root in case membership changed. | |
| roots = [actualRoot]; | |
| } else { | |
| const rawInput = context.payload.inputs?.root; | |
| if (rawInput) { | |
| const root = parseRoot(rawInput); | |
| if (root === undefined) { | |
| core.setFailed(`workflow_dispatch input "root" must be a positive integer PR number; got "${rawInput}"`); | |
| return; | |
| } | |
| // Manual input: fail loudly if it isn't an open PR or isn't the | |
| // actual stack root, rather than reconciling the wrong subtree. | |
| const actualRoot = stack.findRoot(root, pullRequests, defaultBranch); | |
| if (actualRoot === undefined) { | |
| core.setFailed(`workflow_dispatch input #${root} is not an open PR.`); | |
| return; | |
| } | |
| if (actualRoot !== root) { | |
| core.setFailed(`workflow_dispatch input #${root} is not a stack root; its root is #${actualRoot}. Re-run with #${actualRoot}, or leave the input empty to reconcile all stacks.`); | |
| return; | |
| } | |
| roots = [root]; | |
| } else { | |
| roots = stack.findAllRoots(pullRequests, defaultBranch); | |
| } | |
| } | |
| // reconcile() continues past an individual failed write (safe | |
| // failure) and records it; surface any such failures as a job | |
| // failure so an inconsistent breadcrumb doesn't pass silently. | |
| const failures = []; | |
| for (const root of roots) { | |
| const result = await stack.reconcile(root, { pullRequests: allPullRequests, writeBody }); | |
| core.info(`reconciled root #${root}: ${JSON.stringify(result)}`); | |
| failures.push(...result.failed); | |
| } | |
| // "Trueing" the stack: a stack shape change can leave a PR's | |
| // stack-position-dependent checks (e.g. the OpenSpec archive gate) | |
| // failing on a PR that is no longer the tip. GitHub won't re-run a | |
| // PR's checks when a *different* PR changes, so do it here — re-run | |
| // any workflow run on an affected (open) PR that has a FAILED | |
| // `stack`-prefixed job. Failing tests and green/skipped stack checks | |
| // are left alone. | |
| const rechecked = new Set(); | |
| for (const root of roots) { | |
| const tree = stack.buildTree(root, allPullRequests); | |
| for (const number of tree.members) { | |
| if (rechecked.has(number)) continue; | |
| rechecked.add(number); | |
| const pr = allPullRequests.find((p) => p.number === number); | |
| if (!pr || pr.state !== "open" || !pr.headSha) continue; | |
| const runs = await github.paginate(github.rest.actions.listWorkflowRunsForRepo, { | |
| owner, repo, head_sha: pr.headSha, per_page: 100, | |
| }); | |
| const seenWorkflows = new Set(); | |
| for (const run of runs) { | |
| // Consider only the latest run per workflow for this head SHA. | |
| if (seenWorkflows.has(run.workflow_id)) continue; | |
| seenWorkflows.add(run.workflow_id); | |
| // A still-running latest run will report fresh on its own; a | |
| // run that did not fail overall cannot contain a failed job, so | |
| // skip the job fetch for it entirely. | |
| if (run.status !== "completed" || run.conclusion !== "failure") continue; | |
| const jobs = await github.paginate(github.rest.actions.listJobsForWorkflowRun, { | |
| owner, repo, run_id: run.id, per_page: 100, | |
| }); | |
| if (!stack.hasFailedStackJob(jobs)) continue; | |
| try { | |
| await github.rest.actions.reRunWorkflow({ owner, repo, run_id: run.id }); | |
| core.info(`recheck: re-ran "${run.name}" (run ${run.id}) on PR #${number}`); | |
| } catch (error) { | |
| core.info(`recheck: could not re-run run ${run.id} on PR #${number}: ${String(error)}`); | |
| } | |
| } | |
| } | |
| } | |
| if (failures.length > 0) { | |
| core.setFailed(`Failed to update ${failures.length} PR body/bodies: ${failures.map((n) => `#${n}`).join(", ")}. See logs above.`); | |
| } |