First steps to running wrangler's dev function via API without react

[rozenmd]

Prior to this change, wrangler.unstable_dev() would only support running one instance of wrangler at a time, as Ink only lets you render one instance of React. This resulted in test failures in CI.

This change creates pure JS/TS versions of these React hooks:

• useEsbuild
• useLocalWorker
• useCustomBuild
• useTmpDir

As a side-effect of removing React, tests should run faster in CI.

What I don't know:

• If this breaks pages' usage of dev CC: @GregBrimble
• If esbuild's watch function works as expected

What we're not supporting (in this PR, anyway):

• multi-worker support (you should be able to test multiple workers at the same time, but they won't know about each other)

Closes #1432 Closes #1419

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 1cf79838dfc76b4c39d55719bee983d58ec283d4

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

This PR includes changesets to release 1 package

Name	Type
wrangler	Patch

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

[github-actions[bot]]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.developers.workers.dev/runs/2980556025/npm-package-wrangler-1538

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.developers.workers.dev/prs/1538/npm-package-wrangler-1538

Or you can use npx with this latest build directly:

npx https://prerelease-registry.developers.workers.dev/runs/2980556025/npm-package-wrangler-1538 dev path/to/script.js

[codecov[bot]]

Codecov Report

Merging #1538 (1cf7983) into main (23f8921) will decrease coverage by 6.05%. The diff coverage is 67.56%.

@@            Coverage Diff             @@
##             main    #1538      +/-   ##
==========================================
- Coverage   80.18%   74.13%   -6.06%     
==========================================
  Files          92       97       +5     
  Lines        6224     7070     +846     
  Branches     1603     1850     +247     
==========================================
+ Hits         4991     5241     +250     
- Misses       1233     1829     +596     

Impacted Files	Coverage Δ
packages/wrangler/src/bundle.ts	71.42% <ø> (+1.78%)	:arrow_up:
packages/wrangler/src/metrics/send-event.ts	100.00% <ø> (ø)
packages/wrangler/src/pages/dev.tsx	22.90% <ø> (ø)
packages/wrangler/src/dev/local.tsx	29.51% <50.00%> (ø)
packages/wrangler/src/api/dev.ts	57.69% <52.38%> (+42.30%)	:arrow_up:
packages/wrangler/src/dev/start-server.ts	69.49% <69.49%> (ø)
packages/wrangler/src/dev.tsx	84.65% <97.82%> (+3.36%)	:arrow_up:
packages/wrangler/src/pages/constants.ts	100.00% <0.00%> (ø)
...ngler/src/pages/functions/routes-transformation.ts	80.39% <0.00%> (ø)
packages/wrangler/src/dev-registry.tsx	14.28% <0.00%> (ø)
... and 6 more