Canvas Component Upload

---
name: canvas-component-upload
description:
  Upload validated components to Drupal Canvas and recover from common upload
  failures. Use after component work is complete and validated. Handles upload
  failures including dependency-related issues that require retry.
---

## Upload to Canvas

Before uploading, confirm the user has Drupal Canvas CLI installed and
configured for their target site.

### Setup gate

Before running any upload command:

1. Check that a `.env` file exists in the project root.
2. If `.env` exists, verify these values are set:
   - `CANVAS_SITE_URL`
   - `CANVAS_CLIENT_ID`
   - `CANVAS_CLIENT_SECRET`
3. If `.env` is missing, or any required value is missing, **stop** and ask the
   user to complete setup first.
4. **Do not guess setup steps**. Point the user to the official docs:
   - Drupal Canvas OAuth module setup:
     <https://git.drupalcode.org/project/canvas/-/tree/1.x/modules/canvas_oauth#2-setup>
   - Drupal Canvas CLI package/docs:
     <https://www.npmjs.com/package/@drupal-canvas/cli>
5. Continue only after the user confirms setup is complete.

## Run upload

When component work is complete and validated, ask the user if they would like
to upload the modified components to Canvas. Make sure to use the right package
manager. For example, if using npm, run the following command:

```bash
npx canvas upload -c component1,component2,component3 -y
```

Replace `component1,component2,component3` with the actual component names that
were created or modified (e.g., `canvas upload -c button,card,hero`).

## Handling upload failures

Default behavior: **always retry failed uploads** unless the error is clearly a
connection/setup failure.

Retry uploads when the failure indicates the Canvas app connection is already
working (for example, dependency/order-related component errors). Do **not**
retry connection/setup failures.

### Connection/setup failures: Stop, do not retry

If upload fails with authentication, authorization, or network/connection
errors, stop and ask the user to complete or verify setup first. This includes
errors like invalid credentials, unauthorized/forbidden responses, DNS issues,
connection refused, host unreachable, request timeout before reaching Canvas, or
TLS/SSL handshake/certificate failures.

Point the user to the official setup docs:

- Drupal Canvas OAuth module setup:
  <https://git.drupalcode.org/project/canvas/-/tree/1.x/modules/canvas_oauth#2-setup>
- Drupal Canvas CLI package/docs:
  <https://www.npmjs.com/package/@drupal-canvas/cli>

Ask them to verify and update `.env` values (`CANVAS_SITE_URL`,
`CANVAS_CLIENT_ID`, `CANVAS_CLIENT_SECRET`) and OAuth/CLI setup, then retry the
upload only after they confirm setup updates are complete.

### Dependency-related failures

When uploading multiple new components where one component depends on another
(e.g., `hero` imports `heading`), the upload may fail with a message indicating
that a component doesn't exist. This happens when a component that includes
another gets uploaded before its dependency.

**This is expected behavior.** Simply retry the upload command. On subsequent
attempts, the dependencies that were successfully uploaded in the previous run
will already exist, allowing the dependent components to upload successfully.

Example scenario:

1. First upload attempt: `hero` fails because `heading` doesn't exist yet, but
   `heading` uploads successfully.
2. Second upload attempt: `hero` now succeeds because `heading` exists.

If uploads continue to fail after multiple retries, check that all dependency
components are included in the upload command.