👷 Move build chain to ESM #4592
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**⚠️ Minor breaking change** The build chain of `fast-check` has been CommonJS-based since day 1. With ESM moving forward in the ecosystem, it's time to move ourselves to the new standard and adapt our build chains to ESM. Unfortunately it may have some subtle impacts on our users as our package will not be a CJS one offering a ESM fallback anymore. I will rather be the opposite: an ESM package with a fallback to CJS. It implies that we moved ESM related files closer to the root of the package (we could have kept them in esm/) and moved the CJS ones further in the file structure (we had to move them). Another subtle impact is that it would impose our users to run at least Node ≥12.17.0. As such we consider it as a breaking change. On its own it should not be a huge problem for most of the users but given it changes our minimal requirement let's put it into the next major release.
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dubzzz
commented
Jan 2, 2024
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## next-3_15_0 #4592 +/- ##
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- Coverage 93.39% 93.39% -0.01%
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Files 207 207
Lines 5013 5009 -4
Branches 1353 1352 -1
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- Hits 4682 4678 -4
Misses 331 331
Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. |
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🟢 e2e |
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No valid Updated status at jestjs/jest#9430 |
dubzzz
added a commit
that referenced
this pull request
Feb 6, 2025
**Description** <!-- Please provide a short description and potentially linked issues justifying the need for this PR --> The build chain of fast-check has been CommonJS-based since day 1. With ESM moving forward in the ecosystem, it's time to move ourselves to the new standard and adapt our build chains to ESM. Unfortunately it may have some subtle impacts on our users as our package will not be a CJS one offering a ESM fallback anymore. I will rather be the opposite: an ESM package with a fallback to CJS. It implies that we moved ESM related files closer to the root of the package (we could have kept them in esm/) and moved the CJS ones further in the file structure (we had to move them). Another subtle impact is that it would impose our users to run at least Node ≥12.17.0. As such we consider it as a breaking change. On its own it should not be a huge problem for most of the users but given it changes our minimal requirement let's put it into the next major release. Superseed #4592 <!-- * Your PR is fixing a bug or regression? Check for existing issues related to this bug and link them --> <!-- * Your PR is adding a new feature? Make sure there is a related issue or discussion attached to it --> <!-- You can provide any additional context to help into understanding what's this PR is attempting to solve: reproduction of a bug, code snippets... --> **Checklist** — _Don't delete this checklist and make sure you do the following before opening the PR_ - [x] The name of my PR follows [gitmoji](https://gitmoji.dev/) specification - [x] My PR references one of several related issues (if any) - [x] New features or breaking changes must come with an associated Issue or Discussion - [x] My PR does not add any new dependency without an associated Issue or Discussion - [x] My PR includes bumps details, please run `yarn bump` and flag the impacts properly - [x] My PR adds relevant tests and they would have failed without my PR (when applicable) <!-- More about contributing at https://github.com/dubzzz/fast-check/blob/main/CONTRIBUTING.md --> **Advanced** <!-- How to fill the advanced section is detailed below! --> - [x] Category: 👷 Configuration of the package - [x] Impacts: Requires users to rely on more recent versions of Node, at least 12.17 <!-- [Category] Please use one of the categories below, it will help us into better understanding the urgency of the PR --> <!-- * ✨ Introduce new features --> <!-- * 📝 Add or update documentation --> <!-- * ✅ Add or update tests --> <!-- * 🐛 Fix a bug --> <!-- * 🏷️ Add or update types --> <!-- * ⚡️ Improve performance --> <!-- * _Other(s):_ ... --> <!-- [Impacts] Please provide a comma separated list of the potential impacts that might be introduced by this change --> <!-- * Generated values: Can your change impact any of the existing generators in terms of generated values, if so which ones? when? --> <!-- * Shrink values: Can your change impact any of the existing generators in terms of shrink values, if so which ones? when? --> <!-- * Performance: Can it require some typings changes on user side? Please give more details --> <!-- * Typings: Is there a potential performance impact? In which cases? -->
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The build chain of
fast-checkhas been CommonJS-based since day 1. With ESM moving forward in the ecosystem, it's time to move ourselves to the new standard and adapt our build chains to ESM.Unfortunately it may have some subtle impacts on our users as our package will not be a CJS one offering a ESM fallback anymore. I will rather be the opposite: an ESM package with a fallback to CJS. It implies that we moved ESM related files closer to the root of the package (we could have kept them in esm/) and moved the CJS ones further in the file structure (we had to move them).
Another subtle impact is that it would impose our users to run at least Node ≥12.17.0.
As such we consider it as a breaking change. On its own it should not be a huge problem for most of the users but given it changes our minimal requirement let's put it into the next major release.
Category:
Potential impacts: