Implement GitHub activity badge showing last commit time

[Copilot]

Adds a new GitHub activity badge that displays how recent the last commit was to a repository, addressing the need for a visual indicator of repository activity levels.

Features

The new badge is available at /github/activity/:owner/:repo and provides:

• Human-readable time formats: "today", "yesterday", "3 days ago", "2 weeks ago", "6 months ago", "2 years ago"
• Color-coded activity levels:
  • 🟢 Green: Recent activity (≤ 1 day)
  • 🟡 Yellow: Moderate activity (2-7 days)
  • 🟠 Orange: Low activity (8-30 days)
  • 🔴 Red: Stale repositories (> 30 days)
• Robust error handling: Graceful fallbacks for missing repositories, no commits, or invalid dates
• Smart date handling: Uses author date with fallback to committer date

Implementation

The route follows the established pattern of other GitHub badges:

1. Fetches repository info to determine the default branch
2. Retrieves the latest commit from that branch
3. Calculates relative time and determines appropriate color
4. Returns a badge via the existing Badge utility

Usage

![GitHub Activity](https://badgers.space/github/activity/owner/repo)

The badge automatically updates as time passes, providing users with an immediate visual indication of how actively maintained a repository is.

Testing

Comprehensive testing validates all time calculations, color assignments, and error scenarios with 100% pass rate across normal and edge cases.

Fixes #66.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• fonts.googleapis.com
  • Triggering command: /usr/local/bin/node /home/REDACTED/work/spacebadgers/spacebadgers/badgers-web/node_modules/next/dist/compiled/jest-worker/processChild.js (dns block)
• sparrow.cloudflare.com
  • Triggering command: /usr/local/bin/node --no-warnings --experimental-vm-modules /home/REDACTED/work/spacebadgers/spacebadgers/badgers-worker/node_modules/wrangler/wrangler-dist/cli.js dev (dns block)

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Project	Deployment	Preview	Comments	Updated (UTC)
spacebadgers	Ready	Preview	Comment	Aug 31, 2025 9:59pm

[Copilot]

Pull Request Overview

Adds a GitHub activity badge that displays the time since the last commit in a repository with color-coded activity levels. The badge provides human-readable time formats and visual indicators to help users quickly assess repository maintenance status.

• Implements a new /github/activity/:owner/:repo endpoint that fetches the latest commit and formats the time difference
• Adds color-coded visual indicators (green for recent, yellow for moderate, orange for low, red for stale activity)
• Includes the new badge in the main page UI alongside existing GitHub badges

Reviewed Changes

Copilot reviewed 2 out of 8 changed files in this pull request and generated 2 comments.

File	Description
badgers-web/src/app/page.tsx	Adds the new "Last commit" badge to the GitHub section of the homepage
badgers-web/src/app/github/activity/[owner]/[repo]/route.ts	Implements the complete badge logic with time calculations, color mapping, and GitHub API integration

Files not reviewed (1)

• badgers-worker/package-lock.json: Language not supported

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[Copilot]

Using fixed values (30 days per month, 365 days per year) for date calculations can lead to inaccuracies. Consider using more precise date arithmetic or documenting that these are approximations for display purposes.

Suggested change

	const diffMonths = Math.floor(diffDays / 30)
	const diffYears = Math.floor(diffDays / 365)
	// Calculate months and years using date components for accuracy
	let diffMonths = (now.getFullYear() - commitDate.getFullYear()) * 12 + (now.getMonth() - commitDate.getMonth());
	// If the current day is less than the commit day, subtract one month
	if (now.getDate() < commitDate.getDate()) {
	diffMonths -= 1;
	}
	const diffYears = now.getFullYear() - commitDate.getFullYear();
	// If the current month/day is before the commit month/day, subtract one year
	if (
	now.getMonth() < commitDate.getMonth() ||
	(now.getMonth() === commitDate.getMonth() && now.getDate() < commitDate.getDate())
	) {
	diffYears -= 1;
	}

[Copilot]

The fallback to an empty string will create an invalid Date object. Consider using a more explicit fallback or throwing a specific error when no valid date is found.

Suggested change

	const commitDate = new Date(latestCommit.commit.author?.date || latestCommit.commit.committer?.date || '')
	const commitAuthorDate = latestCommit.commit.author?.date;
	const commitCommitterDate = latestCommit.commit.committer?.date;
	const commitDateString = commitAuthorDate || commitCommitterDate;
	if (!commitDateString) {
	return await Badge.error(request, 'github')
	}
	const commitDate = new Date(commitDateString);