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import { relative as relativePath } from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';
import { copyFilesToFolder } from '@astrojs/internal-helpers/fs';
import { appendForwardSlash } from '@astrojs/internal-helpers/path';
import type { AstroIntegrationLogger } from 'astro';
import { searchForWorkspaceRoot } from './searchRoot.js';
export async function copyDependenciesToFunction(
{
entry,
outDir,
includeFiles,
excludeFiles,
logger,
root,
}: {
entry: URL;
outDir: URL;
includeFiles: URL[];
excludeFiles: URL[];
logger: AstroIntegrationLogger;
root: URL;
},
// we want to pass the caching by reference, and not by value
cache: object,
): Promise<{ handler: string }> {
const entryPath = fileURLToPath(entry);
logger.info(`Bundling function ${relativePath(fileURLToPath(outDir), entryPath)}`);
// Set the base to the workspace root
const base = pathToFileURL(appendForwardSlash(searchForWorkspaceRoot(fileURLToPath(root))));
// The Vite bundle includes an import to `@vercel/nft` for some reason,
// and that trips up `@vercel/nft` itself during the adapter build. Using a
// dynamic import helps prevent the issue.
// TODO: investigate why
const { nodeFileTrace } = await import('@vercel/nft');
const result = await nodeFileTrace([entryPath], {
base: fileURLToPath(base),
cache,
});
for (const error of result.warnings) {
if (error.message.startsWith('Failed to resolve dependency')) {
const [, module, file] = /Cannot find module '(.+?)' loaded from (.+)/.exec(error.message)!;
// The import(astroRemark) sometimes fails to resolve, but it's not a problem
if (module === '@astrojs/') continue;
// Sharp is always external and won't be able to be resolved, but that's also not a problem
if (module === 'sharp') continue;
if (entryPath === file) {
logger.debug(
`[@astrojs/vercel] The module "${module}" couldn't be resolved. This may not be a problem, but it's worth checking.`,
);
} else {
logger.debug(
`[@astrojs/vercel] The module "${module}" inside the file "${file}" couldn't be resolved. This may not be a problem, but it's worth checking.`,
);
}
}
// parse errors are likely not js and can safely be ignored,
// such as this html file in "main" meant for nw instead of node:
// https://github.com/vercel/nft/issues/311
else if (error.message.startsWith('Failed to parse')) {
continue;
} else {
throw error;
}
}
const commonAncestor = await copyFilesToFolder(
[...result.fileList].map((file) => new URL(file, base)).concat(includeFiles),
outDir,
excludeFiles,
);
return {
// serverEntry location inside the outDir
handler: relativePath(commonAncestor, entryPath),
};
}
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