# GitHub Pages 404 Fix - Applied ✅

## Problem
GitHub Pages was deploying but showing 404 errors. The GitHub Actions logs showed only the "deploy" job running, not the "build" job.

## Root Cause
The workflow was using `actions/jekyll-build-pages@v1` which requires specific setup, but wasn't properly building the Jekyll site before deployment.

## Solution Applied

### 1. Updated Workflow (`.github/workflows/pages.yml`)
**Changed from:** Using `actions/jekyll-build-pages@v1` (pre-built action)  
**Changed to:** Manual Jekyll build with proper Ruby setup

```yaml
- name: Setup Ruby
  uses: ruby/setup-ruby@v1
  with:
    ruby-version: '3.1'
    bundler-cache: true

- name: Build with Jekyll
  run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
  env:
    JEKYLL_ENV: production
```

### 2. Added Gemfile
Created `Gemfile` with GitHub Pages dependencies:
- `github-pages` gem (includes Jekyll and plugins)
- `jekyll-seo-tag`, `jekyll-sitemap`, `jekyll-feed`
- `kramdown-parser-gfm` (for GitHub Flavored Markdown)
- `webrick` (required for Ruby 3.0+)

### 3. Updated .gitignore
Added Jekyll-specific ignores:
```
/.bundle/
/vendor/
/_site/
/.jekyll-cache/
/.jekyll-metadata
Gemfile.lock
```

## Verification Steps

1. **Check GitHub Actions:**
   - Go to: https://github.com/AeThex-Corporation/AeThex-OS/actions
   - Latest workflow should show **both** "build" and "deploy" jobs (green)

2. **Wait for Deployment:**
   - Full build takes ~2-3 minutes
   - Watch for "Deploy to GitHub Pages" completion

3. **Visit Your Site:**
   ```
   https://aethex-corporation.github.io/AeThex-OS/
   ```

4. **Test Documentation Hub:**
   ```
   https://aethex-corporation.github.io/AeThex-OS/docs/
   ```

5. **Test OS Specification:**
   ```
   https://aethex-corporation.github.io/AeThex-OS/docs/AETHEX_OS_SPECIFICATION
   ```

## Expected Build Output

You should now see in GitHub Actions logs:

```
✅ Checkout
✅ Setup Ruby
✅ Setup Pages
✅ Build with Jekyll
   - Configuration file: _config.yml
   - Source: /home/runner/work/AeThex-OS/AeThex-OS
   - Destination: /home/runner/work/AeThex-OS/AeThex-OS/_site
   - Generating...
   - Jekyll Feed: Generating feed for posts
   - done in X.XX seconds.
✅ Upload artifact
✅ Deploy to GitHub Pages
```

## Common Issues & Solutions

### Issue: Still getting 404
**Solution:** Clear browser cache or try incognito mode

### Issue: Build job fails with Ruby errors
**Solution:** Check Gemfile.lock was generated properly. If not:
```bash
bundle install
git add Gemfile.lock
git commit -m "chore: Add Gemfile.lock"
git push
```

### Issue: CSS/assets not loading
**Solution:** Verify `baseurl` in `_config.yml` matches repo name:
```yaml
baseurl: "/AeThex-OS"
```

### Issue: Links broken
**Solution:** Use absolute paths from baseurl:
```markdown
[Link](/AeThex-OS/docs/page)
```

## Files Modified/Created

### Created:
- ✅ `Gemfile` - Jekyll dependencies
- ✅ `docs/GITHUB_PAGES_404_FIX.md` - This troubleshooting guide

### Modified:
- ✅ `.github/workflows/pages.yml` - Fixed build process
- ✅ `.gitignore` - Added Jekyll ignores

## Next Steps

1. **Monitor the build** at: https://github.com/AeThex-Corporation/AeThex-OS/actions
2. **Wait 2-3 minutes** for complete deployment
3. **Visit site** to confirm it works
4. **If still 404**, check:
   - GitHub Pages is enabled in Settings → Pages
   - Source is set to "GitHub Actions"
   - Build completed successfully (green checkmark)

## Technical Details

### Why the Original Workflow Failed
`actions/jekyll-build-pages@v1` expects a specific setup:
- Minimal config in `_config.yml`
- No Gemfile or only specific gems
- Standard Jekyll directory structure

Our project has:
- Custom theme configuration
- Multiple collections
- Complex navigation
- Root-level markdown files

### Why the New Workflow Works
- Explicit Ruby setup with version control
- Manual Jekyll build with full control
- Proper baseurl injection from GitHub Pages
- Bundle caching for faster builds
- Production environment variable set

## Rollback (If Needed)

If this causes issues, revert with:
```bash
git revert bf4ea61
git push origin main
```

Then investigate alternative solutions.

---

**Status:** ✅ Fix deployed  
**Commit:** bf4ea61  
**Next Deploy:** Automatic on next push to main  

**Your site should be live in 2-3 minutes! 🚀**
