release-installer/dist/github.js

Simple GitHub release installer.

import { createWriteStream } from 'node:fs';
import { unlink } from 'node:fs/promises';
import { Readable } from 'node:stream';
import { pipeline } from 'node:stream/promises';
export async function fetchReleaseInfo(repo, version) {
    const url = `https://api.github.com/repos/${repo}/releases/tags/${version}`;
    const response = await fetch(url, {
        headers: { Accept: 'application/vnd.github.v3+json' },
    });
    if (!response.ok) {
        if (response.status === 404)
            throw new Error(`Release ${version} not found for repository ${repo}`);
        throw new Error(`Failed to fetch release info: ${response.status} ${response.statusText}`);
    }
    const data = await response.json();
    return {
        tag_name: data.tag_name,
        assets: data.assets.map((asset) => ({
            name: asset.name,
            download_url: asset.browser_download_url,
            size: asset.size,
        })),
    };
}
export async function downloadAsset(url, outputPath) {
    const response = await fetch(url);
    if (!response.ok)
        throw new Error(`Failed to download asset: ${response.status} ${response.statusText}`);
    if (!response.body)
        throw new Error('GitHub API response body is empty');
    // Use streaming for better memory efficiency
    const fileStream = createWriteStream(outputPath);
    const readableStream = Readable.fromWeb(response.body);
    try {
        await pipeline(readableStream, fileStream);
    }
    catch (error) {
        // Clean up partial file on error
        try {
            await unlink(outputPath);
        }
        catch {
            // Ignore cleanup errors
        }
        throw new Error(`Failed to download asset: ${error instanceof Error ? error.message : 'Unknown error'}`);
    }
}