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LinkResolver.ts
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LinkResolver.ts
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import {Resolver, ResolveOptions, MinimalResolveOptions, Package} from '@yarnpkg/core';
import {Descriptor, Locator} from '@yarnpkg/core';
import {LinkType} from '@yarnpkg/core';
import {structUtils} from '@yarnpkg/core';
import {npath} from '@yarnpkg/fslib';
import {LINK_PROTOCOL} from './constants';
export class LinkResolver implements Resolver {
supportsDescriptor(descriptor: Descriptor, opts: MinimalResolveOptions) {
if (!descriptor.range.startsWith(LINK_PROTOCOL))
return false;
return true;
}
supportsLocator(locator: Locator, opts: MinimalResolveOptions) {
if (!locator.reference.startsWith(LINK_PROTOCOL))
return false;
return true;
}
shouldPersistResolution(locator: Locator, opts: MinimalResolveOptions) {
return false;
}
bindDescriptor(descriptor: Descriptor, fromLocator: Locator, opts: MinimalResolveOptions) {
return structUtils.bindDescriptor(descriptor, {
locator: structUtils.stringifyLocator(fromLocator),
});
}
getResolutionDependencies(descriptor: Descriptor, opts: MinimalResolveOptions) {
return {};
}
async getCandidates(descriptor: Descriptor, dependencies: unknown, opts: ResolveOptions) {
const path = descriptor.range.slice(LINK_PROTOCOL.length);
return [structUtils.makeLocator(descriptor, `${LINK_PROTOCOL}${npath.toPortablePath(path)}`)];
}
async getSatisfying(descriptor: Descriptor, dependencies: Record<string, Package>, locators: Array<Locator>, opts: ResolveOptions) {
const [locator] = await this.getCandidates(descriptor, dependencies, opts);
return {
locators: locators.filter(candidate => candidate.locatorHash === locator.locatorHash),
sorted: false,
};
}
async resolve(locator: Locator, opts: ResolveOptions) {
return {
...locator,
version: `0.0.0`,
languageName: opts.project.configuration.get(`defaultLanguageName`),
linkType: LinkType.SOFT,
conditions: null,
dependencies: new Map(),
peerDependencies: new Map(),
dependenciesMeta: new Map(),
peerDependenciesMeta: new Map(),
bin: new Map(),
};
}
}