Reduce duplication, tighten types in Watcher backends, remove anymatch dependency #1407
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…cy (#1407) Summary: We currently use the [`anymatch`](https://www.npmjs.com/package/anymatch) dependency to evaluate ignore patterns in watcher backends. `anymatch` handles various input types including globs and arrays of globs/regexps However, since D67285745, it's become clear that the `ignored` param is only ever a `?RegExp`, so we hardly use any of `anymatch` and can simply `test()` paths, and remove the dependency. One subtlety to note that this change makes explicit, is that `anymatch` converts all input paths to posix separators before testing against the input `RegExp` (see block comment). We do the same in this diff so that the change is behaviour-preserving - however, this isn't a convention in Metro and should be revisited (maybe in a breaking change). Note that we don't need to handle other kinds of path normalisation (like `anymatch` does with [`normalize-path`](https://www.npmjs.com/package/normalize-path)) because watcher backends must already emit normal paths, with no trailing separators. Changelog: Internal Differential Revision: D67259981
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…cy (#1407) Summary: We currently use the [`anymatch`](https://www.npmjs.com/package/anymatch) dependency to evaluate ignore patterns in watcher backends. `anymatch` handles various input types including globs and arrays of globs/regexps However, since D67285745, it's become clear that the `ignored` param is only ever a `?RegExp`, so we hardly use any of `anymatch` and can simply `test()` paths, and remove the dependency. One subtlety to note that this change makes explicit, is that `anymatch` converts all input paths to posix separators before testing against the input `RegExp` (see block comment). We do the same in this diff so that the change is behaviour-preserving - however, this isn't a convention in Metro and should be revisited (maybe in a breaking change). Note that we don't need to handle other kinds of path normalisation (like `anymatch` does with [`normalize-path`](https://www.npmjs.com/package/normalize-path)) because watcher backends must already emit normal paths, with no trailing separators. Changelog: Internal Reviewed By: hoxyq Differential Revision: D67259981
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This pull request has been merged in 11c062a. |
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Differential Revision: D67259981