PIPE-391: Better error messages and client-side validation

[cmackenzie1]

Some field validation has been moved to the client side for more immediate feedback.

./bin/wrangler.js pipelines setup

 ⛅️ wrangler 4.40.3
───────────────────
▲ [WARNING] 🚧 `wrangler pipelines setup` is an open-beta command. Please report any issues to https://github.com/cloudflare/workers-sdk/issues/new/choose

🚀 Welcome to Cloudflare Pipelines Setup!
This will guide you through creating a complete pipeline: stream → pipeline → sink

✔ What would you like to name your pipeline? … this-a-test

✘ [ERROR] Pipeline name must contain only letters, numbers, and underscores

Fixes PIPE-391

---

• Tests
  • Tests included
  • Tests not necessary because: validation change
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: validation change
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: Only supported in v4.

[changeset-bot]

🦋 Changeset detected

Latest commit: 2c9bb4f

The changes in this PR will be included in the next version bump.

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Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

Failed to automatically backport this PR's changes to Wrangler v3. Please manually create a PR targeting the v3-maintenance branch with your changes. Thank you for helping us keep Wrangler v3 supported!

Depending on your changes, running git rebase --onto v3-maintenance main cole/PIPE-391-pipelines-errors might be a good starting point.

Notes:

• your PR branch should be named v3-backport-10833
• add the skip-v3-pr label to the current PR to stop this workflow from failing

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create-cloudflare

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miniflare

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@cloudflare/pages-shared

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@cloudflare/workers-editor-shared

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wrangler

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commit: 2c9bb4f

[petebacondarwin]

Should there also be a test change here?

[edmundhung]

Can you add a test for this change?

[edmundhung]

The validateEntityName throws an UserError, but it should throw a CommandLineArgsError when used in validateArgs.

[cmackenzie1]

Changed.