Fix fastfile build errors #3
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artwyman
reviewed
Jun 28, 2024
| module.exports = { | ||
| transpilePackages: ["@repo/ui"], | ||
| webpack: (config, { isServer }) => { | ||
| if (!isServer) { | ||
| config.resolve.fallback = { | ||
| fs: false | ||
| }; | ||
| config.resolve.alias = { |
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Can you document what this is required for? Maybe a comment here would be a good place to document the underlying issue.
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artwyman
approved these changes
Jun 28, 2024
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The linear issue to track this: https://linear.app/0xparc-pcd/issue/0XP-986/avoid-polyfill-issues-from-fastfile |
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"@pcd/gpc" has dependency "@pcd/gpcircuits" which in turn depends on fastfile.
"fastfile" uses node modules "fs", "constants" and global "process" (process.browser).
We need to polyfill these in order for it to work in browser.
Otherwise, here is the build error I'm getting when running "yarn build"
This PR (see next.config.js) shows how to fix it in Next.js (uses webpack 5).
snark.js uses rollup, and here is how it does the polyfill.
zupass repo uses esbuild, and it uses the the plugin from "@esbuild-plugins/node-modules-polyfill" to do the polyfill.