onessg (One Static Site Generator) is the Static Site Generator that does only one thing: compile your html and markdown. It won't minify your JS, concat your CSS, or optimize your images. Why? You most likely already have a favorite tool for doing that.
onessg changes that. We believe in the unix philosophy: do one thing and do it well.
We also believe in setting useful, but overridable defaults. Because of this, onessg requires no configuration files to get started.
npm install -D onessg
You will also need to install the jstransformer for your favorite template engine. For example, if you use EJS, you would run:
npm install -D jstransformer-ejs
You can read more about jstransformers here.
Note: We recommend installing onessg as a devDependency (with the
-D flag) and running it via an npm script. If you choose to install onessg globally, you will also need to install the jstransformer globally as well.
Assuming the following file/directory structure:
. ├── src/ | ├── _defaults.yaml | └── page-one.md ├── layouts/ | └── page.ejs ├── dist/ └── package.json
--- title: "My first Page" _layout: "page" --- Hello World!
The front-matter (the part between the
--- lines) is written in YAML (other languages are supported as well). All keys in the front-matter will be passed as locals to your templates.
Notice the underscore before
layout. Anything prefixed with an underscore is reserved word for onessg. See the full list of underscore keys.
You can set defaults for your front-matter in
_defaults.json works too!). These defaults can be overridden in your front-matter.
title: "Hello World!" # This title will be used if none is specified author: "John Smith"
If you place a
_defaults.yaml file in a subdirectory in
src/, settings there will only apply to files in that subdirectory and its child subdirectories.
Layouts are written in the templating language of your choice. We are using EJS here, but you can use any template engine that has a jstransformer. You can also use multiple template engines in the same project! onessg will infer the correct template engine from the file extension.
layouts/page.ejs looks like this:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title><%= title %></title> <meta name="author" content="<%= author %>"> </head> <body> <%- _body -%> </body> </html>
Notice the local
_body. This is the local for outputing the contents of each file. For page-one.md, it is
onessg will compile all the html and markdown files in
src/ (and subdirectories), and output them to
dist/ (retaining the directory structure):
. ├── src/ | ├── _defaults.yaml | └── page-one.md ├── layouts/ | └── page.ejs ├── dist/ | └── page-one.html └── package.json
dist/page-one.html looks like this:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>My first Page</title> <meta name="author" content="John Smith"> </head> <body> <p>Hello World!</p> </body> </html>
A few notes:
- The title (
My first Page) comes from the front-matter.
- The author's name (
John Smith) comes from the
For further reading, see the Tutorial.
CLI Usage & Options
onessg onessg [-s <source_dir>] [-d <output_dir>] [-l <layout_dir>] Options: --help Show help [boolean] --version Show version number [boolean] -s, --src Set the src directory [string] [default: "src/"] -d, --dist Set the dist directory [string] [default: "dist/"] -l, --layouts Set the layouts directory [string] [default: "layouts/"] -c, --config Set the directory that contains onessg.config.js [string] Examples: onessg onessg -s posts/ -d output/ -l templates/
To pass options to your template engine, you will need to use a config file. Read more about it here.
Contributions welcome; please read the Contributing Guidelines for more info.
Check the Roadmap to see what's on the horizon.