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[@rollup/plugin-node-resolve] resolving package.json exports/imports arrays #1714

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ChristianM18 opened this issue Apr 25, 2024 · 1 comment

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@ChristianM18
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ChristianM18 commented Apr 25, 2024

⚠️ Please note that the packaged utils library in this example is available here, if needed: https://github.com/ChristianM18/build-utils

Expected Behavior

Arrays defined in package.json exports to be taken into account, with the resolution algorithm trying each item until one is successfully resolved.

  "exports": {
    "./*": ["./dist/*.js", "./dist/*/index.js"]
  },

Actual Behavior

The following error is thrown:

[!] Error: Could not load /home/projects/rollup-repro-udym2a/node_modules/utils/dist/color.js (imported by src/main.js): ENOENT: no such file or directory, open '/home/projects/rollup-repro-udym2a/node_modules/utils/dist/color.js'
ENOENT: no such file or directory, open '/home/projects/rollup-repro-udym2a/node_modules/utils/dist/color.js'

Additional Information

I expected the following statement:

import {sayFavoriteColor} from "utils/color";
console.log(sayFavoriteColor("yellow"));

to resolve to ./dist/color/index.js, as the util's library package.json contains:

  "exports": {
    "./*": ["./dist/*.js", "./dist/*/index.js"]
  },

and ./dist/color.js does not exist.
However, it seems that the fact that ./dist/color.js is missing fires an exception, making the algorithm stop.

Apparently a similar (if not same) issue has already been addressed in #670, so maybe it's just a problem on my end.

@fregante

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