/** @jsxImportSource npm:hono@3/jsx */ import { extractValInfo } from "https://esm.town/v/pomdtr/extractValInfo?v=29"; import { Hono } from "npm:hono"; import { marked } from "npm:marked"; interface PackageJson { dependencies?: Record; devDependencies?: Record; } interface GithubRelease { tag_name: string; name: string; body: string; published_at: string; } // Function to fetch package info from NPM registry async function fetchPackageInfo(packageName: string) { const url = `https://registry.npmjs.org/${packageName}`; const response = await fetch(url); if (!response.ok) { throw new Error(`Failed to fetch package info for ${packageName}`); } return response.json(); } // Function to extract GitHub repo URL from package info function extractGitHubRepoUrl(packageInfo: any): string | null { const repository = packageInfo.repository; if (repository && repository.url) { let repoUrl = repository.url; // Convert git URL to HTTPS URL if necessary repoUrl = repoUrl.replace(/^git\+/, "").replace(/\.git$/, ""); return repoUrl; } return null; } // Function to get the GitHub repository path (owner/repo) from the URL function getGithubRepoPath(repoUrl: string): string | null { const match = repoUrl.match(/github\.com\/([^\/]+\/[^\/]+)/); return match ? match[1] : null; } async function getGithubReleases(repo: string): Promise { const response = await fetch(`https://api.github.com/repos/${repo}/releases`); if (!response.ok) { throw new Error(`Failed to fetch releases from ${repo}`); } return response.json(); } function compareVersions(version1: string, version2: string): number { const v1 = version1.replace(/^v/, "").split(".").map(Number); const v2 = version2.replace(/^v/, "").split(".").map(Number); for (let i = 0; i < Math.max(v1.length, v2.length); i++) { const diff = (v1[i] || 0) - (v2[i] || 0); if (diff !== 0) return diff; } return 0; } async function getReleaseNotesBetweenVersions(repo: string, currentVersion: string): Promise { const releases = await getGithubReleases(repo); const filteredReleases = releases.filter(release => { const version = release.tag_name.replace(/^v/, ""); return compareVersions(version, currentVersion) > 0; }); return filteredReleases.sort((a, b) => compareVersions(a.tag_name, b.tag_name)); } async function checkNpmUpdates(packageJsonUrl: string): Promise { try { const response = await fetch(packageJsonUrl); if (!response.ok) { throw new Error(`Failed to fetch package.json from ${packageJsonUrl}`); } const packageJson: PackageJson = await response.json(); const dependencies = packageJson.dependencies ?? {}; const devDependencies = packageJson.devDependencies ?? {}; let result = "Checking dependencies for updates...\n"; for (const [name, version] of Object.entries(dependencies)) { try { const packageInfo = await fetchPackageInfo(name); const repoUrl = extractGitHubRepoUrl(packageInfo); if (!repoUrl) { result += `No GitHub repository URL found for ${name}\n`; continue; } const repoPath = getGithubRepoPath(repoUrl); if (!repoPath) { result += `Invalid GitHub repository URL for ${name}: ${repoUrl}\n`; continue; } const releaseNotes = await getReleaseNotesBetweenVersions(repoPath, version); result += `# Release notes for ${name} from ${version}:\n`; releaseNotes.forEach(note => { result += `- ${note.tag_name} (${note.published_at}): ${note.name}\n${note.body}\n`; }); } catch (error) { result += `Error processing ${name}: ${error.message}\n`; } } result += "\nChecking devDependencies for updates...\n"; for (const [name, version] of Object.entries(devDependencies)) { try { const packageInfo = await fetchPackageInfo(name); const repoUrl = extractGitHubRepoUrl(packageInfo); if (!repoUrl) { result += `No GitHub repository URL found for ${name}\n`; continue; } const repoPath = getGithubRepoPath(repoUrl); if (!repoPath) { result += `Invalid GitHub repository URL for ${name}: ${repoUrl}\n`; continue; } const releaseNotes = await getReleaseNotesBetweenVersions(repoPath, version); result += `# Release notes for ${name} from ${version}:\n`; releaseNotes.forEach(note => { result += `- ${note.tag_name} (${note.published_at}): ${note.name}\n${note.body}\n`; }); } catch (error) { result += `Error processing ${name}: ${error.message}\n`; } } return result; } catch (error) { return `Error checking npm updates: ${error.message}`; } } const app = new Hono(); app.get("/", async (c) => { const url = c.req.query("url"); if (url) { const result = await checkNpmUpdates(url); const markdownContent = ` # NPM Update Checker \n## Results: \n${result} `; const htmlContent = marked(markdownContent); return c.html(

Raw GitHub package.json URL:

, ); } else { return c.html(

Raw GitHub package.json URL:

Built on Val Town

, ); } }); export default app.fetch;

gitReleaseNotes