# Jekyll Sitemap Generator Plugin

*Jekyll plugin to silently generate a sitemaps.org compliant sitemap for your Jekyll site*

[![Build Status](https://travis-ci.org/jekyll/jekyll-sitemap.svg?branch=master)](https://travis-ci.org/jekyll/jekyll-sitemap)

## Usage

1. Add `gem 'jekyll-sitemap'` to your site's Gemfile and run `bundle`
2. Add the following to your site's `_config.yml`:

```yml
url: "http://example.com" # the base hostname & protocol for your site
plugins:
  - jekyll-sitemap
```

💡 If you are using a Jekyll version less than 3.5.0, use the `gems` key instead of `plugins`.

If all gem plugins have the same `priority`, they will be executed in the
order they are required, generally. Thus, if you have other plugins which
generate content and store that content in `site.pages`, `site.posts`, or
`site.collections`, be sure to require `jekyll-sitemap` either *after*
those other gems if you *want* the sitemap to include the generated
content, or *before* those other gems if you *don't want* the sitemap to
include the generated content from the gems. (Programming is *hard*.)

Because the sitemap is added to `site.pages`, you may have to modify any
templates that iterate through all pages (for example, to build a menu of
all of the site's content).

## Note on Use with Github Pages Gem
The Github Pages gem ignores all plugins included in the Gemfile. If you only include `jekyll-sitemap` in the Gemfile without also including it in the `_config.yml` *the plugin will not work*. This can be confusing because the official Jekyll docs state that plugins can be included in either the Gemfile or `_config.yml`.

When building a site that uses the Github Pages gem, follow the instructions above and ensure that `jekyll-sitemap` is listed in the `plugins` array in `_config.yml`.

:warning: If you are using Jekyll < 3.5.0 use the `gems` key instead of `plugins`.

## `<lastmod>` tag
The `<lastmod>` tag in the `sitemap.xml` will reflect by priority:

1.   The modified date of the file as reported by the filesystem if you have `jekyll-last-modified-at` plugin installed (not compatible with Github Pages auto building)
2.   A personalised date if you add the variable `last_modified_at:` with a date in the Front Matter
3.   The creation date of your post (corresponding to the `post.date` variable)

## Exclusions

If you would like to exclude specific pages/posts from the sitemap set the
sitemap flag to `false` in the front matter for the page/post.

```yml
sitemap: false
```

## Override default development settings

[Follow these instructions on Jekyll's documentation](https://jekyllrb.com/docs/usage/#override-default-development-settings).

## Developing locally

* Use `script/bootstrap` to bootstrap your local development environment.
* Use `script/console` to load a local IRB console with the Gem.

## Testing

1. `script/bootstrap`
2. `script/cibuild`

## Known Issues

1. If the `sitemap.xml` doesn't generate in the `_site` folder, ensure `_config.yml` doesn't have `safe: true`. That prevents all plugins from working.
2. If the `sitemap.xml` doesn't generate in the `_site` folder, ensure that you don't have a sitemap generator plugin in your `_plugin` folder.

## Contributing

1. Fork the project
2. Create a descriptively named feature branch
3. Add your feature
4. Submit a pull request
