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ES module conversion PoC #1498

Merged
merged 24 commits into from
Feb 7, 2023
Merged

ES module conversion PoC #1498

merged 24 commits into from
Feb 7, 2023

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43081j
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@43081j 43081j commented Jan 20, 2023

I'm sure there's plenty of other things to take into account, tests to add (such that we test both CJS/ESM equally) and maybe some problems in this I missed - however, here's a PoC of converting the codebase to ESM.

As the commit says, it uses esbuild under the hood to create two bundled entrypoints:

  • chai.js - ESM
  • chai.cjs - CommonJS

Two because there are still dependencies written in CommonJS, which invalidates the ESM-only tree (meaning you wouldn't be able to use it natively in a browser). Bundling them means we can leave it up to esbuild to figure the dependencies out and ship pure ESM.

If you ever want this or feel like picking it up, let me know, i can probably find a little time to pair on it some way.

The diff's a little funky because I first caught up from 4.x.x into my 5.x.x-based branch, while the current 5.x.x branch is actually out of date (and I fixed the conflicts there).

Also, it'd probably break the use function externally (haven't tried it). has no use anymore internally but who knows what third party packages are depending on it. tried to imitate it with some mock exports object but haven't really tested it.

i have tested it with a few chai plugins to see if use works, and all seems fine.

lnewson and others added 23 commits March 3, 2021 18:16
The changes made in chaijs#1334 incorrectly used an arrow function and as this isn't supported on IE 11 it causes a SyntaxError to be thrown when loading chai.
Bumps [codecov](https://github.com/codecov/codecov-node) from 3.1.0 to 3.7.1.
- [Release notes](https://github.com/codecov/codecov-node/releases)
- [Changelog](https://github.com/codecov/codecov-node/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-node@v3.1.0...v3.7.1)

---
updated-dependencies:
- dependency-name: codecov
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
* 4.x.x: Fix link to commit logs on GitHub

As there is no `master` branch, the link returned a 404.

* Update History.md

Co-authored-by: Andre Meyering <[email protected]>

Co-authored-by: Keith Cirkel <[email protected]>
Bumps [socket.io-parser](https://github.com/socketio/socket.io-parser) from 4.0.4 to 4.0.5.
- [Release notes](https://github.com/socketio/socket.io-parser/releases)
- [Changelog](https://github.com/socketio/socket.io-parser/blob/main/CHANGELOG.md)
- [Commits](socketio/socket.io-parser@4.0.4...4.0.5)

---
updated-dependencies:
- dependency-name: socket.io-parser
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
previously it was incorrectly labeled as `objDisplay(obj: object): void` in `@types/chai`.
This moves all of the sources to be ES modules rather than CommonJS.

In order to produce the entrypoints, we use esbuild as a bundler (and as
a transpiler in a way).

Due to the fact that some dependencies are written in CommonJS, we
actually use esbuild to create _two_ bundles: a CommonJS bundle, and an
ES module bundle.

Otherwise, someone importing the raw source would inevitably end up
trying to import a CommonJS module somewhere down the tree, which would
not work in browsers natively.
@43081j
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43081j commented Feb 6, 2023

@keithamus did you ever get chance to take a peek at this? would be good to get some thoughts

giving chai a real es module would be so useful

@keithamus
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Thanks for the reminder! I’ll give this a closer look tomorrow ❤️

@keithamus keithamus marked this pull request as ready for review February 7, 2023 14:40
@keithamus keithamus requested a review from a team as a code owner February 7, 2023 14:40
solaris007 added a commit to adobe/spacecat-shared that referenced this pull request Aug 27, 2024
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This PR contains the following updates:

| Package | Type | Update | Change | Age | Adoption | Passing |
Confidence |
|---|---|---|---|---|---|---|---|
| [actions/setup-java](https://github.com/actions/setup-java) | action
| major | `v3` -> `v4` |
[![age](https://developer.mend.io/api/mc/badges/age/github-tags/actions%2fsetup-java/v4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
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|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/github-tags/actions%2fsetup-java/v3/v4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
| [chai](http://chaijs.com) ([source](https://github.com/chaijs/chai))
| devDependencies | major | [`4.5.0` ->
`5.1.1`](https://renovatebot.com/diffs/npm/chai/4.5.0/5.1.1) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/chai/5.1.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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---

### Release Notes

<details>
<summary>actions/setup-java (actions/setup-java)</summary>

### [`v4`](https://github.com/actions/setup-java/compare/v3...v4)

[Compare
Source](https://github.com/actions/setup-java/compare/v3...v4)

</details>

<details>
<summary>chaijs/chai (chai)</summary>

### [`v5.1.1`](https://github.com/chaijs/chai/releases/tag/v5.1.1)

[Compare
Source](https://github.com/chaijs/chai/compare/v5.1.0...v5.1.1)

#### What's Changed

- Set up ESLint for JSDoc comments by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1605
- build(deps-dev): bump ip from 1.1.8 to 1.1.9 by
[@&#8203;dependabot](https://github.com/dependabot) in
[chaijs/chai#1608
- Correct Mocha import instructions by
[@&#8203;MattiSG](https://github.com/MattiSG) in
[chaijs/chai#1611
- fix: support some virtual contexts in `toThrow` by
[@&#8203;43081j](https://github.com/43081j) in
[chaijs/chai#1609

#### New Contributors

- [@&#8203;MattiSG](https://github.com/MattiSG) made their first
contribution in
[chaijs/chai#1611

**Full Changelog**:
chaijs/chai@v5.1.0...v5.1.1

### [`v5.1.0`](https://github.com/chaijs/chai/releases/tag/v5.1.0)

[Compare
Source](https://github.com/chaijs/chai/compare/v5.0.3...v5.1.0)

#### What's Changed

- Remove useless guards and add parentheses to constuctors by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1593
- Cleanup jsdoc comments by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1596
- Convert comments in "legal comments" format to jsdoc or normal
comments by [@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1598
- Implement `iterable` assertion by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1592
- Assert interface fix by
[@&#8203;developer-bandi](https://github.com/developer-bandi) in
[chaijs/chai#1601
- Set support in same members by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1583
- Fix publish script by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1602

#### New Contributors

- [@&#8203;developer-bandi](https://github.com/developer-bandi) made
their first contribution in
[chaijs/chai#1601

**Full Changelog**:
chaijs/chai@v5.0.3...v5.1.0

### [`v5.0.3`](https://github.com/chaijs/chai/releases/tag/v5.0.3)

[Compare
Source](https://github.com/chaijs/chai/compare/v5.0.2...v5.0.3)

Fix bad v5.0.2 publish.

**Full Changelog**:
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### [`v5.0.2`](https://github.com/chaijs/chai/releases/tag/v5.0.2)

[Compare
Source](https://github.com/chaijs/chai/compare/v5.0.0...v5.0.2)

#### What's Changed

- build(deps): bump nanoid and mocha by
[@&#8203;dependabot](https://github.com/dependabot) in
[chaijs/chai#1558
- remove `bump-cli` by [@&#8203;koddsson](https://github.com/koddsson)
in
[chaijs/chai#1559
- Update developer dependencies by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1560
- fix: removes `??` for node compat (5.x) by
[@&#8203;43081j](https://github.com/43081j) in
[chaijs/chai#1576
- Update `loupe` to latest version by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1579
- Re-enable some webkit tests by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1580
- Remove a bunch of if statements in test/should.js by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1581
- Remove a bunch of unused files by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1582
- Fix 1564 by [@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1566

**Full Changelog**:
chaijs/chai@v5.0.1...v5.0.2

### [`v5.0.0`](https://github.com/chaijs/chai/releases/tag/v5.0.0)

[Compare
Source](https://github.com/chaijs/chai/compare/v4.5.0...v5.0.0)

#### BREAKING CHANGES

- Chai now only supports EcmaScript Modules (ESM). This means your tests
will need to either have `import {...} from 'chai'` or `import('chai')`.
`require('chai')` will cause failures in nodejs. If you're using ESM and
seeing failures, it may be due to a bundler or transpiler which is
incorrectly converting import statements into require calls.
-   Dropped support for Internet Explorer.
-   Dropped support for NodeJS < 18.
- Minimum supported browsers are now Firefox 100, Safari 14.1, Chrome
100, Edge 100. Support for browsers prior to these versions is "best
effort" (bug reports on older browsers will be assessed individually and
may be marked as wontfix).

#### What's Changed

- feat: use chaijs/loupe for inspection by
[@&#8203;pcorpet](https://github.com/pcorpet) in
[chaijs/chai#1401
- docs: fix URL in README by [@&#8203;Izzur](https://github.com/Izzur)
in
[chaijs/chai#1413
- Remove `get-func-name` dependency by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1416
- Convert Makefile script to npm scripts by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1424
- Clean up README badges by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1422
- fix: package.json - deprecation warning on exports field by
[@&#8203;stevenjoezhang](https://github.com/stevenjoezhang) in
[chaijs/chai#1400
- fix: deep-eql bump package to support symbols by
[@&#8203;snewcomer](https://github.com/snewcomer) in
[chaijs/chai#1458
- ES module conversion PoC by
[@&#8203;43081j](https://github.com/43081j) in
[chaijs/chai#1498
- chore: drop commonjs support by
[@&#8203;43081j](https://github.com/43081j) in
[chaijs/chai#1503
- Update pathval by [@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1527
- Update check-error by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1528
- update `deep-eql` to latest version by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1542
- Inline `type-detect` as a simple function by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1544
- Update loupe by [@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1545
- Typo 'Test an object' not 'Test and object' by
[@&#8203;mavaddat](https://github.com/mavaddat) in
[chaijs/chai#1460
- Update `assertion-error` to it's latest major version! by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1543
- Replacing Karma with Web Test Runner by
[@&#8203;koddsson](https://github.com/koddsson) in
[chaijs/chai#1546

#### New Contributors

- [@&#8203;Izzur](https://github.com/Izzur) made their first
contribution in
[chaijs/chai#1413
- [@&#8203;stevenjoezhang](https://github.com/stevenjoezhang) made
their first contribution in
[chaijs/chai#1400
- [@&#8203;43081j](https://github.com/43081j) made their first
contribution in
[chaijs/chai#1498

**Full Changelog**:
chaijs/chai@4.3.1...v5.0.0

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