next
Version:
The React Framework
87 lines (86 loc) • 2.88 kB
JavaScript
import { join } from 'path';
import { readFileSync } from 'fs';
import { runInNewContext } from 'vm';
import { deepFreeze } from '../shared/lib/deep-freeze';
const sharedCache = new Map();
export function loadManifest(path, shouldCache = true, cache = sharedCache, skipParse = false, handleMissing) {
const cached = shouldCache && cache.get(path);
if (cached) {
return cached;
}
let manifest;
if (handleMissing) {
try {
manifest = readFileSync(/* turbopackIgnore: true */ path, 'utf8');
} catch (err) {
let result = {};
cache.set(path, result);
return result;
}
} else {
manifest = readFileSync(/* turbopackIgnore: true */ path, 'utf8');
}
if (!skipParse) {
manifest = JSON.parse(manifest);
// Freeze the manifest so it cannot be modified if we're caching it.
if (shouldCache) {
manifest = deepFreeze(manifest);
}
}
if (shouldCache) {
cache.set(path, manifest);
}
return manifest;
}
export function evalManifest(path, shouldCache = true, cache = sharedCache, handleMissing) {
const cached = shouldCache && cache.get(path);
if (cached) {
return cached;
}
let content;
if (handleMissing) {
try {
content = readFileSync(/* turbopackIgnore: true */ path, 'utf8');
} catch (err) {
let result = {};
cache.set(path, result);
return result;
}
} else {
content = readFileSync(/* turbopackIgnore: true */ path, 'utf8');
}
if (content.length === 0) {
throw Object.defineProperty(new Error('Manifest file is empty'), "__NEXT_ERROR_CODE", {
value: "E328",
enumerable: false,
configurable: true
});
}
let contextObject = {
process: {
env: {
NEXT_DEPLOYMENT_ID: process.env.NEXT_DEPLOYMENT_ID
}
}
};
runInNewContext(content, contextObject);
// Freeze the context object so it cannot be modified if we're caching it.
if (shouldCache) {
contextObject = deepFreeze(contextObject);
}
if (shouldCache) {
cache.set(path, contextObject);
}
return contextObject;
}
export function loadManifestFromRelativePath({ projectDir, distDir, manifest, shouldCache, cache, skipParse, handleMissing, useEval }) {
const manifestPath = join(/* turbopackIgnore: true */ projectDir, distDir, manifest);
if (useEval) {
return evalManifest(manifestPath, shouldCache, cache, handleMissing);
}
return loadManifest(manifestPath, shouldCache, cache, skipParse, handleMissing);
}
export function clearManifestCache(path, cache = sharedCache) {
return cache.delete(path);
}
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