77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
const path = require(`path`);
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let pnpApi = null;
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try {
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pnpApi = require(`pnpapi`);
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} catch {
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}
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function getVirtualLookupFn(pnpApi) {
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const reverseMap = new Map();
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for (const locator of pnpApi.getAllLocators()) {
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const pkg = pnpApi.getPackageInformation(locator);
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console.assert(pkg, `The package information should be available`);
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const resolvedLocation = pnpApi.resolveVirtual(pkg.packageLocation);
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if (resolvedLocation === null)
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continue;
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const aliases = reverseMap.get(resolvedLocation) || [resolvedLocation];
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reverseMap.set(resolvedLocation, aliases);
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aliases.push(pkg.packageLocation);
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}
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const keys = [...reverseMap.keys()].sort((a, b) => {
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return b.length - a.length;
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});
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return p => {
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const prefix = keys.find(candidate => p.startsWith(candidate));
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if (typeof prefix === `undefined`)
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return [p];
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const sub = p.substr(prefix.length);
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return reverseMap.get(prefix).map(alias => {
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return alias + sub;
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});
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};
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}
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if (pnpApi != null) {
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const resolveVirtualAliases = getVirtualLookupFn(pnpApi);
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module.exports = class FsePnp {
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constructor(p) {
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this.normalizedPath = path.resolve(p);
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this.resolvedPath = pnpApi.resolveVirtual(this.normalizedPath) || this.normalizedPath;
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}
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transpose(p) {
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if (this.resolvedPath !== null) {
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return this.normalizedPath + p.substr(this.resolvedPath.length);
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} else {
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return p;
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}
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}
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wrap(fn) {
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return (path, ...args) => {
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for (const entry of resolveVirtualAliases(path)) {
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fn(this.transpose(entry), ...args);
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}
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};
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}
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};
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} else {
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module.exports = class FsePnp {
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constructor(p) {
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this.resolvedPath = p;
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}
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wrap(fn) {
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return fn;
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}
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};
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}
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