What problem does this feature solve?
We only deals js externsion in externals when in bundleless mode.
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externals: [ |
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(data: any, callback: any) => { |
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// Issuer is not empty string when the module is imported by another module. |
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// Prevent from externalizing entry modules here. |
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if (data.contextInfo.issuer) { |
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// Node.js ECMAScript module loader does no extension searching. |
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// Add a file extension according to autoExtension config |
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// when data.request is a relative path and do not have an extension. |
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// If data.request already have an extension, we replace it with new extension |
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// This may result in a change in semantics, |
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// user should use copy to keep origin file or use another separate entry to deal this |
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let request = data.request; |
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if (request[0] === '.') { |
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request = extname(request) |
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? request.replace(/\.[^.]+$/, jsExtension) |
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: `${request}${jsExtension}`; |
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} |
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return callback(null, request); |
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} |
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callback(); |
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}, |
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], |
What does the proposed API look like?