43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
import etag from 'etag';
|
|
|
|
import getContentTypeHeader from '../utils/getContentTypeHeader';
|
|
import rewriteBareModuleIdentifiers from '../utils/rewriteBareModuleIdentifiers';
|
|
|
|
export default function serveJavaScriptModule(req, res) {
|
|
try {
|
|
const code = rewriteBareModuleIdentifiers(
|
|
req.entry.content.toString('utf8'),
|
|
req.packageConfig
|
|
);
|
|
|
|
res
|
|
.set({
|
|
'Content-Length': Buffer.byteLength(code),
|
|
'Content-Type': getContentTypeHeader(req.entry.contentType),
|
|
'Cache-Control': 'public, max-age=31536000', // 1 year
|
|
ETag: etag(code),
|
|
'Cache-Tag': 'file, js-file, js-module'
|
|
})
|
|
.send(code);
|
|
} catch (error) {
|
|
console.error(error);
|
|
|
|
const errorName = error.constructor.name;
|
|
const errorMessage = error.message.replace(
|
|
/^.*?\/unpkg-.+?\//,
|
|
`/${req.packageSpec}/`
|
|
);
|
|
const codeFrame = error.codeFrame;
|
|
const debugInfo = `${errorName}: ${errorMessage}\n\n${codeFrame}`;
|
|
|
|
res
|
|
.status(500)
|
|
.type('text')
|
|
.send(
|
|
`Cannot generate module for ${req.packageSpec}${
|
|
req.filename
|
|
}\n\n${debugInfo}`
|
|
);
|
|
}
|
|
}
|