Call generateExtensionTypes after building extensions when filters are updated

[vividviolet]

WHY are these changes introduced?

Fix https://github.com/Shopify/admin-extensibility/issues/2295

Currently TypeScript types are only generated for UI extensions when the extension toml is updated. This means newly imported files would have missing types.

Screen Recording 2025-11-27 at 9.47.03 AM.mov (uploaded via Graphite)

WHAT is this pull request doing?

This PR enables automatic regeneration of TypeScript types when extensions are rebuilt during development. Specifically:

• Adds logic to regenerate extension types after extensions are rebuilt due to file changes
• Ensures types are regenerated when extensions are deleted to clean up type definitions
• Avoids duplicate type generation when the app is reloaded (as types are already generated during reload)
• Adds comprehensive tests to verify the type generation behavior in different scenarios

How to test your changes?

1. Create am app with a ui extension and run dev.
2. Create a new test.ts file with the following content:

export function test() {
    console.log('shopify', shopify);
}

3. Add import {test} from './test.ts' in the extension's module and save the file
4. Verify that when hovering over shopify in test.ts you see the types

Measuring impact

How do we know this change was effective? Please choose one:

• n/a - this doesn't need measurement, e.g. a linting rule or a bug-fix

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes

[vividviolet]

• Call generateExtensionTypes after building extensions when filters are updated #6670 👈 (View in Graphite)
• main

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[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	79.27% (+0.04% 🔼)	13763/17363
🟡	Branches	73.22% (+0.11% 🔼)	6721/9179
🟡	Functions	79.4% (+0.03% 🔼)	3535/4452
🟡	Lines	79.63% (+0.05% 🔼)	13005/16331

Show new covered files 🐣

St.❔	File	Statements	Branches	Functions	Lines
🟢	... / admin-as-app.ts	100%	100%	100%	100%
🟢	... / bulk-operation-run-mutation.ts	100%	100%	100%	100%
🟢	... / bulk-operation-run-query.ts	100%	100%	100%	100%
🟢	... / get-bulk-operation-by-id.ts	100%	100%	100%	100%
🟢	... / staged-uploads-create.ts	100%	100%	100%	100%
🔴	... / status.ts	0%	100%	0%	0%
🟢	... / bulk-operation-status.ts	96%	85.71%	100%	100%
🟢	... / download-bulk-operation-results.ts	100%	100%	100%	100%
🟢	... / execute-bulk-operation.ts	90.91%	80.56%	100%	92.31%
🟢	... / format-bulk-operation-status.ts	100%	100%	100%	100%
🟢	... / run-mutation.ts	100%	100%	100%	100%
🟢	... / run-query.ts	100%	100%	100%	100%
🟡	... / stage-file.ts	72.73%	62.5%	83.33%	71.88%
🟢	... / watch-bulk-operation.ts	100%	100%	100%	100%

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🟡	... / specification.ts	68.52% (-0.57% 🔻)	75.61% (+2.44% 🔼)	76.47% (-1.31% 🔻)	68.09% (-0.66% 🔻)
🟢	... / developer-platform-client.ts	84.62% (-1.5% 🔻)	73.68% (+3.1% 🔼)	81.82% (+1.82% 🔼)	90.63% (-2.71% 🔻)
🟢	... / api.ts	87.07% (-0.43% 🔻)	76.71% (-0.1% 🔻)	100%	86.49% (-0.43% 🔻)
🟢	... / ConcurrentOutput.tsx	98.36% (-1.64% 🔻)	92% (-4% 🔻)	100%	98.33% (-1.67% 🔻)
🔴	... / ui.tsx	50.82% (-0.79% 🔻)	42.86% (-5.53% 🔻)	54.55% (+1.42% 🔼)	50% (-0.82% 🔻)
🟢	... / console.ts	81.82% (+15.15% 🔼)	75% (-25% 🔻)	100% (+33.33% 🔼)	81.82% (+15.15% 🔼)
🔴	... / dev.ts	12.77% (-0.57% 🔻)	2.78% (-0.16% 🔻)	57.14%	12.77% (-0.57% 🔻)
🟡	... / theme-environment.ts	69.57% (-1.86% 🔻)	50%	55.56% (-3.27% 🔻)	69.57% (-1.86% 🔻)

Test suite run success

3426 tests passing in 1391 suites.

Report generated by 🧪jest coverage report action from 61d1a5d