How to use @yarnpkg/pnp - 3 common examples
To help you get started, we’ve selected a few @yarnpkg/pnp examples, based on popular ways it is used in public projects.
Secure your code as it's written. Use Snyk Code to scan source code in minutes - no build needed - and fix issues immediately.
yarnpkg / berry / packages / plugin-pnp / sources / PnpLinker.ts View on Github 
const pnpPath = getPnpPath(this.opts.project);
const pnpDataPath = this.opts.project.configuration.get(`pnpDataPath`);
const pnpSettings: PnpSettings = {
blacklistedLocations,
dependencyTreeRoots,
enableTopLevelFallback,
fallbackExclusionList,
ignorePattern,
packageRegistry,
shebang,
};
if (this.opts.project.configuration.get(`pnpEnableInlining`)) {
const loaderFile = generateInlinedScript(pnpSettings);
await xfs.changeFilePromise(pnpPath, loaderFile);
await xfs.chmodPromise(pnpPath, 0o755);
await xfs.removePromise(pnpDataPath);
} else {
const dataLocation = ppath.relative(ppath.dirname(pnpPath), pnpDataPath);
const {dataFile, loaderFile} = generateSplitScript({...pnpSettings, dataLocation});
await xfs.changeFilePromise(pnpPath, loaderFile);
await xfs.chmodPromise(pnpPath, 0o755);
await xfs.changeFilePromise(pnpDataPath, dataFile);
await xfs.chmodPromise(pnpDataPath, 0o644);
}fallbackExclusionList,
ignorePattern,
packageRegistry,
shebang,
};
if (this.opts.project.configuration.get(`pnpEnableInlining`)) {
const loaderFile = generateInlinedScript(pnpSettings);
await xfs.changeFilePromise(pnpPath, loaderFile);
await xfs.chmodPromise(pnpPath, 0o755);
await xfs.removePromise(pnpDataPath);
} else {
const dataLocation = ppath.relative(ppath.dirname(pnpPath), pnpDataPath);
const {dataFile, loaderFile} = generateSplitScript({...pnpSettings, dataLocation});
await xfs.changeFilePromise(pnpPath, loaderFile);
await xfs.chmodPromise(pnpPath, 0o755);
await xfs.changeFilePromise(pnpDataPath, dataFile);
await xfs.chmodPromise(pnpDataPath, 0o644);
}
const pnpUnpluggedFolder = this.opts.project.configuration.get(`pnpUnpluggedFolder`);
if (this.unpluggedPaths.size === 0) {
await xfs.removePromise(pnpUnpluggedFolder);
} else {
for (const entry of await xfs.readdirPromise(pnpUnpluggedFolder)) {
const unpluggedPath = ppath.resolve(pnpUnpluggedFolder, entry);
if (!this.unpluggedPaths.has(unpluggedPath)) {
await xfs.removePromise(unpluggedPath);const baseFs = new ZipOpenFS({
baseFs: nodeFs,
maxOpenFiles: 80,
readOnlyArchives: true,
});
const defaultFsLayer: FakeFS = new VirtualFS({baseFs});
const rootPath = this.opts.project.cwd;
let prevLocatorMap: NodeModulesLocatorMap;
try {
prevLocatorMap = await readLocatorState(ppath.join(rootPath, NODE_MODULES, LOCATOR_STATE_FILE));
} catch (e) {
prevLocatorMap = new Map();
}
const pnp = makeRuntimeApi(pnpSettings, rootPath, defaultFsLayer);
const nmTree = buildNodeModulesTree(pnp, {
optimizeSizeOnDisk: true,
knownLocatorWeights: new Map(Array.from(prevLocatorMap).map(([key, val]) => [key, val.size])),
pnpifyFs: false,
});
const locatorMap = buildLocatorMap(rootPath, nmTree);
await persistNodeModules(rootPath, prevLocatorMap, locatorMap, baseFs, this.opts.report);
}
