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TarballHttpResolver.ts
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TarballHttpResolver.ts
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import {Resolver, ResolveOptions, MinimalResolveOptions, Package} from '@yarnpkg/core';
import {Descriptor, Locator, Manifest} from '@yarnpkg/core';
import {LinkType} from '@yarnpkg/core';
import {miscUtils, structUtils} from '@yarnpkg/core';
import * as urlUtils from './urlUtils';
export class TarballHttpResolver implements Resolver {
supportsDescriptor(descriptor: Descriptor, opts: MinimalResolveOptions) {
return urlUtils.isTgzUrl(descriptor.range);
}
supportsLocator(locator: Locator, opts: MinimalResolveOptions) {
return urlUtils.isTgzUrl(locator.reference);
}
shouldPersistResolution(locator: Locator, opts: MinimalResolveOptions) {
return true;
}
bindDescriptor(descriptor: Descriptor, fromLocator: Locator, opts: MinimalResolveOptions) {
return descriptor;
}
getResolutionDependencies(descriptor: Descriptor, opts: MinimalResolveOptions) {
return {};
}
async getCandidates(descriptor: Descriptor, dependencies: unknown, opts: ResolveOptions) {
return [structUtils.convertDescriptorToLocator(descriptor)];
}
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) {
if (!opts.fetchOptions)
throw new Error(`Assertion failed: This resolver cannot be used unless a fetcher is configured`);
const packageFetch = await opts.fetchOptions.fetcher.fetch(locator, opts.fetchOptions);
const manifest = await miscUtils.releaseAfterUseAsync(async () => {
return await Manifest.find(packageFetch.prefixPath, {baseFs: packageFetch.packageFs});
}, packageFetch.releaseFs);
return {
...locator,
version: manifest.version || `0.0.0`,
languageName: manifest.languageName || opts.project.configuration.get(`defaultLanguageName`),
linkType: LinkType.HARD,
conditions: manifest.getConditions(),
dependencies: opts.project.configuration.normalizeDependencyMap(manifest.dependencies),
peerDependencies: manifest.peerDependencies,
dependenciesMeta: manifest.dependenciesMeta,
peerDependenciesMeta: manifest.peerDependenciesMeta,
bin: manifest.bin,
};
}
}