microsoft/vscode-react-native
Publicmirrored fromhttps://github.com/microsoft/vscode-react-nativeAvailable
src/common/node/package.ts
96lines · modecode
| 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT license. See LICENSE file in the project root for details. |
| 3 | |
| 4 | import * as pathModule from "path"; |
| 5 | |
| 6 | import { FileSystem } from "./fileSystem"; |
| 7 | import { ErrorHelper } from "../error/errorHelper"; |
| 8 | import { InternalErrorCode } from "../error/internalErrorCode"; |
| 9 | |
| 10 | interface IPackageDependencyDict { |
| 11 | [packageName: string]: string; |
| 12 | } |
| 13 | |
| 14 | export interface IPackageInformation { |
| 15 | name: string; |
| 16 | version: string; |
| 17 | dependencies?: IPackageDependencyDict; |
| 18 | main?: string; |
| 19 | [key: string]: any; |
| 20 | } |
| 21 | |
| 22 | export class Package { |
| 23 | private INFORMATION_PACKAGE_FILENAME = "package.json"; |
| 24 | private DEPENDENCIES_SUBFOLDER = "node_modules"; |
| 25 | |
| 26 | private fileSystem: FileSystem; |
| 27 | |
| 28 | private _path: string; |
| 29 | |
| 30 | constructor(path: string, { fileSystem = new FileSystem() } = {}) { |
| 31 | this._path = path; |
| 32 | this.fileSystem = fileSystem; |
| 33 | } |
| 34 | |
| 35 | public getPackageVersionFromNodeModules(packageName: string): Promise<string> { |
| 36 | return this.dependencyPackage(packageName).version(); |
| 37 | } |
| 38 | |
| 39 | public parsePackageInformation(): Promise<IPackageInformation> { |
| 40 | return this.fileSystem |
| 41 | .readFile(this.informationJsonFilePath(), "utf8") |
| 42 | .then(data => <IPackageInformation>JSON.parse(data.toString())); |
| 43 | } |
| 44 | |
| 45 | public name(): Promise<string> { |
| 46 | return this.parseProperty("name"); |
| 47 | } |
| 48 | |
| 49 | public dependencies(): Promise<IPackageDependencyDict> { |
| 50 | return this.parseProperty("dependencies"); |
| 51 | } |
| 52 | |
| 53 | public devDependencies(): Promise<IPackageDependencyDict> { |
| 54 | return this.parseProperty("devDependencies"); |
| 55 | } |
| 56 | |
| 57 | public version(): Promise<string> { |
| 58 | return this.parseProperty("version").then(version => |
| 59 | typeof version === "string" |
| 60 | ? version |
| 61 | : Promise.reject<string>( |
| 62 | ErrorHelper.getInternalError( |
| 63 | InternalErrorCode.CouldNotParsePackageVersion, |
| 64 | this.informationJsonFilePath(), |
| 65 | version, |
| 66 | ), |
| 67 | ), |
| 68 | ); |
| 69 | } |
| 70 | |
| 71 | public setMainFile(value: string): Promise<void> { |
| 72 | return this.parsePackageInformation().then(packageInformation => { |
| 73 | packageInformation.main = value; |
| 74 | return this.fileSystem.writeFile( |
| 75 | this.informationJsonFilePath(), |
| 76 | JSON.stringify(<Record<string, any>>packageInformation), |
| 77 | ); |
| 78 | }); |
| 79 | } |
| 80 | |
| 81 | public dependencyPath(dependencyName: string): string { |
| 82 | return pathModule.resolve(this._path, this.DEPENDENCIES_SUBFOLDER, dependencyName); |
| 83 | } |
| 84 | |
| 85 | public dependencyPackage(dependencyName: string): Package { |
| 86 | return new Package(this.dependencyPath(dependencyName), { fileSystem: this.fileSystem }); |
| 87 | } |
| 88 | |
| 89 | public informationJsonFilePath(): string { |
| 90 | return pathModule.resolve(this._path, this.INFORMATION_PACKAGE_FILENAME); |
| 91 | } |
| 92 | |
| 93 | private parseProperty(name: string): Promise<any> { |
| 94 | return this.parsePackageInformation().then(packageInformation => packageInformation[name]); |
| 95 | } |
| 96 | } |
| 97 | |