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* Eleventy Downloader Service
*
* Manages Eleventy npm package installation (not traditional binary downloads).
* Uses npm to install @11ty/eleventy to version-specific directories.
*/
import { execFile } from 'child_process';
import { promisify } from 'util';
import fs from 'fs-extra';
import path from 'path';
import type { PathHelper, EnvironmentInfo } from '../../utils/path-helper.js';
import type { OutputConsole } from '../../adapters/types.js';
import type { SSGBinaryManager } from '../types.js';
const execFileAsync = promisify(execFile);
// ============================================================================
// Types
// ============================================================================
export interface DownloadProgress {
percent: number;
message: string;
complete: boolean;
error?: string;
}
export interface EleventyDownloaderDependencies {
pathHelper: PathHelper;
outputConsole: OutputConsole;
environmentInfo: EnvironmentInfo;
}
/**
* Eleventy Downloader - Manages npm package installation for Eleventy
*/
export class EleventyDownloader implements SSGBinaryManager {
private pathHelper: PathHelper;
private outputConsole: OutputConsole;
private environmentInfo: EnvironmentInfo;
private cancelRequested: boolean = false;
constructor(dependencies: EleventyDownloaderDependencies) {
this.pathHelper = dependencies.pathHelper;
this.outputConsole = dependencies.outputConsole;
this.environmentInfo = dependencies.environmentInfo;
}
/**
* Check if a specific Eleventy version is installed
*/
isVersionInstalled(version: string): boolean {
const installDir = this.pathHelper.getSSGBinDirForVer('eleventy', version);
const eleventyBin = path.join(installDir, 'node_modules', '.bin', 'eleventy');
// On Windows, check for .cmd file
if (this.environmentInfo.platform === 'windows') {
return fs.existsSync(eleventyBin + '.cmd') || fs.existsSync(eleventyBin);
}
return fs.existsSync(eleventyBin);
}
/**
* Get the path to an installed Eleventy version
*/
getVersionPath(version: string): string | null {
if (!this.isVersionInstalled(version)) {
return null;
}
const installDir = this.pathHelper.getSSGBinDirForVer('eleventy', version);
const eleventyBin = path.join(installDir, 'node_modules', '.bin', 'eleventy');
// On Windows, use .cmd wrapper
if (this.environmentInfo.platform === 'windows') {
return fs.existsSync(eleventyBin + '.cmd') ? eleventyBin + '.cmd' : eleventyBin;
}
return eleventyBin;
}
/**
* List all installed Eleventy versions
*/
listInstalledVersions(): string[] {
const binRoot = this.pathHelper.getSSGBinRoot('eleventy');
if (!fs.existsSync(binRoot)) {
return [];
}
const versions: string[] = [];
const entries = fs.readdirSync(binRoot, { withFileTypes: true });
for (const entry of entries) {
if (entry.isDirectory()) {
const versionDir = path.join(binRoot, entry.name);
const eleventyBin = path.join(versionDir, 'node_modules', '.bin', 'eleventy');
if (fs.existsSync(eleventyBin) || fs.existsSync(eleventyBin + '.cmd')) {
versions.push(entry.name);
}
}
}
return versions;
}
/**
* Download and install a specific Eleventy version using npm
* Implementation of SSGBinaryManager.download()
*/
async *download(version: string, skipExistCheck?: boolean): AsyncGenerator<DownloadProgress> {
// Check if already installed unless skipping
if (!skipExistCheck && this.isVersionInstalled(version)) {
yield {
percent: 100,
message: 'Already installed',
complete: true,
};
return;
}
yield* this.downloadVersion(version);
}
/**
* Download and install a specific Eleventy version using npm
* Returns an async generator for streaming progress updates
*/
async *downloadVersion(version: string): AsyncGenerator<DownloadProgress> {
const installDir = this.pathHelper.getSSGBinDirForVer('eleventy', version);
try {
// Step 1: Prepare directory
yield {
percent: 10,
message: 'Preparing installation directory...',
complete: false,
};
await fs.ensureDir(installDir);
// Step 2: Create package.json
yield {
percent: 20,
message: 'Creating package.json...',
complete: false,
};
const packageJson = {
name: 'quiqr-eleventy',
version: '1.0.0',
private: true,
description: 'Eleventy installation for Quiqr',
};
await fs.writeFile(
path.join(installDir, 'package.json'),
JSON.stringify(packageJson, null, 2)
);
// Step 3: Install Eleventy via npm
yield {
percent: 30,
message: `Installing @11ty/eleventy@${version}...`,
complete: false,
};
this.outputConsole.appendLine(`Installing Eleventy ${version} to ${installDir}`);
// Use npm to install Eleventy
// Note: We use --no-save to avoid modifying package.json
const npmCommand = process.platform === 'win32' ? 'npm.cmd' : 'npm';
await execFileAsync(
npmCommand,
['install', `@11ty/eleventy@${version}`, '--no-save', '--loglevel=error'],
{
cwd: installDir,
timeout: 300000, // 5 minute timeout
}
);
yield {
percent: 90,
message: 'Verifying installation...',
complete: false,
};
// Verify installation
const eleventyBin = path.join(installDir, 'node_modules', '.bin', 'eleventy');
const installed = fs.existsSync(eleventyBin) || fs.existsSync(eleventyBin + '.cmd');
if (!installed) {
throw new Error('Eleventy binary not found after installation');
}
yield {
percent: 100,
message: 'Installation complete!',
complete: true,
};
this.outputConsole.appendLine(`Eleventy ${version} installed successfully`);
} catch (error) {
this.outputConsole.appendLine(`Eleventy installation error: ${error instanceof Error ? error.message : String(error)}`);
// Clean up on failure
try {
await fs.remove(installDir);
} catch (cleanupError) {
this.outputConsole.appendLine(`Failed to clean up installation directory: ${cleanupError instanceof Error ? cleanupError.message : String(cleanupError)}`);
}
yield {
percent: 0,
message: 'Installation failed',
complete: false,
error: error instanceof Error ? error.message : String(error),
};
}
}
/**
* Cancel current download
* Implementation of SSGBinaryManager.cancel()
*/
async cancel(): Promise<void> {
this.cancelRequested = true;
this.outputConsole.appendLine('Eleventy download cancellation requested');
}
/**
* Ensure a specific Eleventy version is available (download if not installed)
* Implementation of SSGBinaryManager.ensureAvailable()
*/
async ensureAvailable(version: string): Promise<void> {
if (this.isVersionInstalled(version)) {
return;
}
this.outputConsole.appendLine(`Eleventy ${version} not found, installing...`);
// Run download generator to completion
for await (const progress of this.download(version, true)) {
this.outputConsole.appendLine(`Eleventy install: ${progress.message} (${progress.percent}%)`);
if (progress.error) {
throw new Error(`Failed to install Eleventy ${version}: ${progress.error}`);
}
if (progress.complete) {
break;
}
}
}
/**
* Remove a specific Eleventy version
*/
async removeVersion(version: string): Promise<void> {
const installDir = this.pathHelper.getSSGBinDirForVer('eleventy', version);
if (fs.existsSync(installDir)) {
await fs.remove(installDir);
this.outputConsole.appendLine(`Removed Eleventy ${version}`);
}
}
}
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