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NpmPackageManager Class — astro Architecture

Architecture documentation for the NpmPackageManager class in npm-package-manager.ts from the astro codebase.

Class typescript CoreAstro

Entity Profile

Dependency Diagram

graph TD
  2e4fe66b_34c1_d431_e021_4d9cf6e37083["NpmPackageManager"]
  86018cb3_a9ae_f366_c549_4a3d100bab0f["npm-package-manager.ts"]
  2e4fe66b_34c1_d431_e021_4d9cf6e37083 -->|defined in| 86018cb3_a9ae_f366_c549_4a3d100bab0f
  89662485_f4da_4f94_196d_0d88d14336d2["constructor()"]
  2e4fe66b_34c1_d431_e021_4d9cf6e37083 -->|method| 89662485_f4da_4f94_196d_0d88d14336d2
  1cdcf038_a494_2a7c_847b_e3ae7ff0aded["getPackageVersion()"]
  2e4fe66b_34c1_d431_e021_4d9cf6e37083 -->|method| 1cdcf038_a494_2a7c_847b_e3ae7ff0aded

Relationship Graph

Source Code

packages/astro/src/cli/info/infra/npm-package-manager.ts lines 9–43

export class NpmPackageManager implements PackageManager {
	readonly name: string = 'npm';
	readonly #commandExecutor: CommandExecutor;

	constructor({ commandExecutor }: { commandExecutor: CommandExecutor }) {
		this.#commandExecutor = commandExecutor;
	}

	async getPackageVersion(name: string): Promise<string | undefined> {
		try {
			// https://docs.npmjs.com/cli/v9/commands/npm-ls
			const { stdout } = await this.#commandExecutor.execute(
				'npm',
				['ls', name, '--json', '--depth=1'],
				{
					shell: true,
				},
			);
			const parsedNpmOutput = JSON.parse(stdout) as BareNpmLikeVersionOutput;

			if (!parsedNpmOutput.dependencies) {
				return undefined;
			}

			if (parsedNpmOutput.dependencies[name]) {
				return `v${parsedNpmOutput.dependencies[name].version}`;
			}

			const astro = parsedNpmOutput.dependencies.astro;
			return astro ? `v${astro.dependencies[name].version}` : undefined;
		} catch {
			return undefined;
		}
	}
}

Domain

Defined In

Source

Frequently Asked Questions

What is the NpmPackageManager class?
NpmPackageManager is a class in the astro codebase, defined in packages/astro/src/cli/info/infra/npm-package-manager.ts.
Where is NpmPackageManager defined?
NpmPackageManager is defined in packages/astro/src/cli/info/infra/npm-package-manager.ts at line 9.

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