fs: restore fs patchability in ESM loader · nodejs/node@f4ea495

const { defaultGetFormat } = require('internal/modules/esm/get_format');

const { validateAttributes, emitImportAssertionWarning } = require('internal/modules/esm/assert');

const { readFileSync } = require('fs');

const fs = require('fs');

const { Buffer: { from: BufferFrom } } = require('buffer');

const responseURL = href;

let source;

if (protocol === 'file:') {

source = readFileSync(url);

// If you are reading this code to figure out how to patch Node.js module loading

// behavior - DO NOT depend on the patchability in new code: Node.js

// internals may stop going through the JavaScript fs module entirely.

// Prefer module.registerHooks() or other more formal fs hooks released in the future.

source = fs.readFileSync(url);

} else if (protocol === 'data:') {

const result = dataURLProcessor(url);

if (result === 'failure') {

const assert = require('internal/assert');

const internalFS = require('internal/fs/utils');

const { BuiltinModule } = require('internal/bootstrap/realm');

const { realpathSync } = require('fs');

const fs = require('fs');

const { getOptionValue } = require('internal/options');

// Do not eagerly grab .manifest, it may be in TDZ

const { sep, posix: { relative: relativePosixPath }, resolve } = require('path');

}

if (!preserveSymlinks) {

const real = realpathSync(path, {

// If you are reading this code to figure out how to patch Node.js module loading

// behavior - DO NOT depend on the patchability in new code: Node.js

// internals may stop going through the JavaScript fs module entirely.

// Prefer module.registerHooks() or other more formal fs hooks released in the future.

const real = fs.realpathSync(path, {

[internalFS.realpathCacheKey]: realpathCache,

});

const { search, hash } = resolved;

const { BuiltinModule } = require('internal/bootstrap/realm');

const assert = require('internal/assert');

const { readFileSync } = require('fs');

const fs = require('fs');

const { dirname, extname } = require('path');

const {

assertBufferSource,

try {

// We still need to read the FS to detect the exports.

translateContext.source ??= readFileSync(new URL(url), 'utf8');

// If you are reading this code to figure out how to patch Node.js module loading

// behavior - DO NOT depend on the patchability in new code: Node.js

// internals may stop going through the JavaScript fs module entirely.

// Prefer module.registerHooks() or other more formal fs hooks released in the future.

translateContext.source ??= fs.readFileSync(new URL(url), 'utf8');

} catch {

// Continue regardless of error.

}