|author||buildbot <firstname.lastname@example.org>||Fri Aug 27 10:36:47 2021 +0000|
|committer||buildbot <email@example.com>||Fri Aug 27 10:36:47 2021 +0000|
Automatic Site Publish by Buildbot
The Apache Drill website is built using Jekyll, from Markdown sources in the [drill/gh-pages](https://github.com/apache/drill/tree/gh-pages branch of the main Drill code repository. Changes made anywhere downstream of that will be lost in the next build and deploy cycle.
To make documenation contributions easier, pull requests to the gh-pages branch do not require any additional process, such as the creation of a JIRA ticket.
gem install bundler jekyll:3.9.0
gem install jekyll-redirect-from:0.9.1 gem install jekyll-polyglot
Please make sure that specific versions of libraries are installed since building the site with other versions may cause some issues like including md document index into the references, etc.
The software version numbers above underwent a major increase in 2020 and the Markdown processor changed from Redcarpet to Kramdown. Please check the versions in your environment if you're having trouble generating the site.
The documentation pages are placed under
_docs. You can modify existing .md files, or you can create new .md files to add to the Apache Drill documentation site. Create pull requests to submit your documentation updates. The Kramdown Markdown processor employed by Jekyll supports a dialect of Markdown which is a superset of standard Markdown.
If you create new Markdown (.md) files, include the required YAML front matter and name the file using the methods described in this section.
The YAML front matter has three important parameters:
title:- This is the title of the page enclosed in quotation marks. Each page must have a unique title
slug:- Set this to the same value as
title, it will be slugified automatically by Jekyll.
date:- This field is needed for Jekyll to write a last-modified date. Initially, leave this field blank.
parent:- This is the title of the page's parent page. It should be empty for top-level sections/guides, and be identical to the title attribute of another page in all other cases.
The name of the file itself doesn't matter except for the alphanumeric order of the filenames. Files that share the same parent are ordered alphanumerically. Note that the content of parent files is ignored, so add an overview/introduction child when needed.
030-baz.md, etc. This allows room to add files in-between (eg,
...-getting-started-with-drill.md. If you're not sure what the slug is, you should be able to see it in the URL and then adjust (the URLs are auto-generated based on the title attribute).
To preview the website on your local machine:
jekyll build --config _config.yml,_config-prod.yml _tools/createdatadocs.py jekyll serve --config _config.yml,_config-prod.yml [--livereload] [--incremental]
Note that you can skip the first two commands (and only run
jekyll serve) if you haven't changed the title or path of any of the documentation pages.
To automatically add the
last-modified-on date, a one-time local setup is required:
drill/.git/hooks, create a file named
pre-commit(no extension) that contains this script:
#!/bin/sh # Contents of .git/hooks/pre-commit git diff --cached --name-status | grep "^M" | while read a b; do cat $b | sed "/---.*/,/---.*/s/^date:.*$/date: $(date -u "+%Y-%m-%d")/" > tmp mv tmp $b git add $b done
chmod +x pre-commit
On the page you create, in addition to the title, and
parent:, you now need to add
date: to the front matter of any file you create. For example:
--- title: "Configuring Multitenant Resources" parent: "Configuring a Multitenant Cluster" date: ---
Do not fill in or alter the date: field. Jekyll and git take care of that when you commit the file.
Locally install the
gem install jekyll-redirect-from
On any page you want to redirect, add the redirect_to: and the URL to the front matter. For example:
--- title: "Configuring Multitenant Resources" parent: "Configuring a Multitenant Cluster" date: redirect_to: - http://<new_url> ---
Multilingual support was added to the website in June 2021 using the polyglot Jekyll plugin. The fallback language is set to English which means that when a translated page is not available the English version will be shown. This means that a language which is incompletely translated is still deployable with no adverse effects.
lang-codeforthwith) to the
languagesproperty in _config.yml.
lang-code/subdirectory to the root directory.
lang-code/subdirectory to each collection that will be translated, e.g.
exclude_from_localizationlist in _config.yml to ensure that the content you want to translate is not excluded from processing by the multlingual plugin.
The English versions of “site” pages such as index.html are stored in the root directory. Create corresponding translated pages under
lang-code/ in which you set
lang in the front matter to
lang-code and leave the
permalink the same as the English page.
The English versions of “collection” pages such as the markdown under _docs/ are stored in an en/ subdirectory of the collection root. Create corresponding translated pages in the collection under
lang-code/ in which you translate both
parent in the front matter but leave the
slug the same as the English page and set
lang-code. Once you've translated the
title of a parent page, you will need to provide files for each of its children (which can still contain the original English content) and in each set
parent to the translated
title of the parent.
Once the website is ready, you'll need to compile the site to static HTML so that it can then be published to Apache. This is as simple as running the
jekyll build command. The
_config-prod.yml configuration file causes a few changes to the site:
noindexmeta tag is removed. We want the production site to be indexed by search engines, but we don't want the staging site to be indexed.
/. The production site is at
/, whereas the staging site is at
/drill(convenient for previewing on GitHub Pages: http://apache.github.io/drill).
jekyll build --config _config.yml,_config-prod.yml _tools/createdatadocs.py jekyll serve --config _config.yml,_config-prod.yml
Apache project websites use a system called svnpubsub for publishing. Basically, the static HTML needs to be pushed by one of the committers into the Apache SVN.
git clone -b asf-site https://gitbox.apache.org/repos/asf/drill-site.git ../drill-site rm -rf ../drill-site/* cp -R _site/* ../drill-site/ cd ../drill-site git status git add * git commit -m "Website update" git push
The updates should then be live: http://drill.apache.org.