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320 lines
10 KiB
Markdown
320 lines
10 KiB
Markdown
# zs - ⚡️ Zen Static site generator
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zs is an extremely minimal static site generator written in Go.
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[](https://ci.mills.io/prologic/zs)
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Table of Contents:
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<!-- toc -->
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- [zs - ⚡️ Zen Static site generator](#zs----zen-static-site-generator)
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* [Quick Start](#quick-start)
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* [Features](#features)
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* [Installation](#installation)
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* [Ideology](#ideology)
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* [Configuration](#configuration)
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* [Configuration file](#configuration-file)
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* [Extensions (Markdown)](#extensions-markdown)
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* [Plugins](#plugins)
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* [Include](#include)
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* [RSS](#rss)
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* [Hooks](#hooks)
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* [Command line usage](#command-line-usage)
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* [zs Users](#zs-users)
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* [Frequently Asked Questions](#frequently-asked-questions)
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* [How do I link to other pages?](#how-do-i-link-to-other-pages)
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* [License](#license)
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<!-- tocstop -->
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## Quick Start
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```console
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go install go.mills.io/zs@latest
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mkdir .zs && cat > .zs/layout.html <<EOF
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<html>
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<head>
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<title>{{ title }}</title>
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</head>
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<body>{{ content }}</body>
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</html>
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EOF
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cat > index.md <<EOF
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---
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title: Hello World
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---
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# Hello World
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Hello World!
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EOF
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zs serve
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```
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For a starter template see the [zs-starter-template](https://git.mills.io/prologic/zs-stater-template) which can also be found running live at [zs.mills.io](https://zs.mills.io).
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## Features
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- Zero configuration (optional configuration file)
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- Highly configurable (flags, env vars, configuration file)
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- Cross-platform (macOS, Windows, Linux)
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- Highly extensible via plugins in any language
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- Works well for blogs and generic static websites (landing pages, etc)
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- Easy to learn
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- Fast!
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## Installation
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Download the binaries from [go.mills.io/prologic/zs](https://git.mills.io/prologic/zs):
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```console
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go install go.mills.io/zs@latest
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```
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Or build from source manually:
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```console
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git clone https://git.mills.io/prologic/zs
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cd zs
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make install
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```
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## Ideology
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Keep your texts in markdown, or HTML format right in the main directory
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of your blog/site.
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Keep all service files (extensions, layout pages, deployment scripts etc)
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in the `.zs` subdirectory.
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Define variables in the header of the content files using [YAML front matter](https://assemble.io/docs/YAML-front-matter.html):
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```markdown
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---
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title: My web site
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keywords: best website, hello, world
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---
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Markdown text goes after a header *separator*
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```
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Use placeholders for variables and plugins in your markdown or html
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files, e.g. `{{ title }}` or `{{ command arg1 arg2 }}.
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Write extensions in any language you like and put them into the `.zs`
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sub-directory.
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Everything the extensions prints to stdout becomes the value of the
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placeholder.
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Every variable from the content header will be passed via environment variables like `title` becomes `$ZS_TITLE` and so on. There are some special variables:
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- `$ZS` - a path to the `zs` executable
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- `$ZS_OUTDIR` - a path to the directory with generated files
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- `$ZS_FILE` - a path to the currently processed markdown file
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- `$ZS_URL` - a URL for the currently generated page
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## Configuration
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By default no configuration is required. Variables can be defined at the top of each content page using YAML front-matter as described in [Idealogy](#ideology). As your site gets more complex, you _may_ want to define a site-level configuration file. There are a couple of ways to do this:
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- Using command-line flags of `zs` itself, see `zs --help` for configuration options.
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- Using environment variables such as `ZS_PRODUCTION=1`. These match the command-line flags above, are uppercase and prefixed with `ZS_`.
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- Using `zs -c/--config ...` to pass an explicit configuration file.
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- Placing a `.zs/config.yml` configuration file in your `.zs` directory.
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### Configuration file
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The basic structure of a configuration file looks like:
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```yaml
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---
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title: zs starter template
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description: A starter template for the Zen Static (zs) site generator
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keywords: zen, static, zs, starter, template, site, website, template, generator, ssg
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extensions:
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- typography
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- wikilink
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- fences
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- embed
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- d2
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```
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## Extensions (Markdown)
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`zs` supports content written in Markdown, `index.md` for example and uses the [Goldmark][goldmark] Markdown parser with a number of extensions enabled by default:
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- [anchor][anchor] -- Adds anchors (permalinks) next to all headers in a document.
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- [d2][d2] -- Adds support for [D2](https://d2lang.com/) diagrams.
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- [embed][embed] -- Adds support for rendering embeds from YouTube links.
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- [fences][fences] -- Support for pandoc-style fenced divs.
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- [highlighting][highlighting] -- Adds support for syntax highlighting of code.
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- [wikilink][wikilink] -- Adds support for [[wiki]]-style links to goldmark.
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For a full-list of default extensions enabled, see `zs --help` and the `-e/--extensions` flag.
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## Plugins
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Plugins are just executables in any language that output content. They can be system executables like `data` or custom scripts or programs that you place in `.zs/`. To use a plugins simply reference it in your content like so:
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```markdown
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Site last updated at {{{ date }}
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```
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or:
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```markdown
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Here's a list of support features:
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{{ features }}
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```
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Where `features` is a script defined in `.zs/features`
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Plugins can be written in any language you know (Bash, Python, Lua, JavaScript, Go, even Assembler).
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Here are some example plugins you might find useful in your site.
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### Include
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`.zs/include`:
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```bash
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#!/bin/sh
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if [ -f "$1" ]; then
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cat "$1"
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else
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echo "error: file not found $1"
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fi
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```
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### RSS
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`.zs/rss`:
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```bash
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#!/bin/sh
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for f in ./blog/*.md ; do
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d="$("$ZS" var "$f" date)"
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if [ ! -z $d ] ; then
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timestamp="$(date --date "$d" +%s)"
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url="$("$ZS" var "$f" url)"
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title="$("$ZS" var "$f" title | tr A-Z a-z)"
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desc="$("$ZS" var "$f" description)"
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echo $timestamp \
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"<item>" \
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"<title>$title</title>" \
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"<link>http://zserge.com/$url</link>" \
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"<description>$desc</description>" \
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"<pubDate>$(date --date @$timestamp -R)</pubDate>" \
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"<guid>http://zserge.com/$url</guid>" \
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"</item>"
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fi
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done | sort -r -n | cut -d' ' -f2-
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```
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Looking for more plugins? Check out the [contrib/plugins](https://git.mills.io/prologic/zs/src/branch/main/contrib/plugins) collection!
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## Hooks
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There are two special plugin names that are executed every time the build
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happens:
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- `prehook` -- executed before the build
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- `posthook` -- executed after the build
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You can use these to customize the build before and after. For example you can use the `posthook` to minify CSS or Javascript files.
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`.zs/posthook`:
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```bash
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#!/bin/sh
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minify -o "$ZS_OUTDIR/css/fa.min.css" "$ZS_OUTDIR/css/fa.css"
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minify -o "$ZS_OUTDIR/css/site.min.css" "$ZS_OUTDIR/css/site.css"
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```
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Looking for more hooks? Check out the [contrib/hooks](https://git.mills.io/prologic/zs/src/branch/main/contrib/hooks) collection!
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## Command line usage
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- `zs build` re-builds your site.
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- `zs build <file>` re-builds one file and prints resulting content to stdout.
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- `zs watch` rebuilds your site every time you modify any file.
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- `zs serve` rebuilds your site and serve it on the network.
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- `zs var <filename> [var1 var2...]` prints a list of variables defined in the
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header of a given markdown file, or the values of certain variables (even if
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it's an empty string).
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For full usage see `zs --help`:
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```console
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$ zs --help
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zs is an extremely minimal static site generator written in Go.
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- Keep your texts in markdown, or HTML format right in the main directory of your blog/site.
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- Keep all service files (extensions, layout pages, deployment scripts etc) in the .zs subdirectory.
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- Define variables in the header of the content files using YAML front matter:
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- Use placeholders for variables and plugins in your markdown or html files, e.g. {{ title }} or {{ command arg1 arg2 }}.
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- Write extensions in any language you like and put them into the .zs sub-directory.
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- Everything the extensions prints to stdout becomes the value of the placeholder.
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Usage:
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zs [command]
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Available Commands:
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build Builds the whole site or a single file
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completion Generate the autocompletion script for the specified shell
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help Help about any command
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serve Serves the site and rebuilds automatically
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var Display variables for the specified file
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watch Watches for file changes and rebuilds modified files
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Flags:
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-c, --config string config file (default: .zs/config.yml)
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-D, --debug enable debug logging $($ZS_DEBUG)
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-d, --description string site description ($ZS_DESCRIPTION)
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-e, --extensions strings override and enable specific extensions (default [table,linkify,highlighting,fences,footnote,cjk,d2,embed,wikilink,tasklist,definitionlist,anchor,strikethrough,typography])
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-h, --help help for zs
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-k, --keywords string site keywords ($ZS_KEYWORDS)
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-p, --production enable production mode ($ZS_PRODUCTION)
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-t, --title string site title ($ZS_TITLE)
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-v, --version version for zs
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Use "zs [command] --help" for more information about a command.
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```
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## zs Users
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Here's a few sites that use `zs` today:
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- https://yarn.social -- Landing page of the decentralized microBlogging ecosystem.
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- https://salty.im -- Landing page of the e2e encrypted IndieWeb inspired messaging protocol.
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- https://zs.mills.io -- zs starter template demo.
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- https://prologic.shortcircuit.net.au -- Home page of James Mills / prologic (author of zs)
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Want to add your site here? File an issue or submit a pull-request!
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## Frequently Asked Questions
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### How do I link to other pages?
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Easy! Just write a normal HTML link using an `<a href="/other.html">title</a>` tag or a Markdown link using the normal `[title](/other.html)` syntax.
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## License
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`zs` is licensed under the terms of the [MIT License](/LICENSE) and was originally forked from [zserge/zs](https://github.com/zserge/zs) also licensed under the terms of the [MIT License](/LICENSE.old).
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----
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[goldmark]: https://github.com/yuin/goldmark
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[anchor]: https://github.com/abhinav/goldmark-anchor
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[d2]: https://github.com/FurqanSoftware/goldmark-d2
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[embed]: https://github.com/13rac1/goldmark-embed
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[fences]: https://github.com/stefanfritsch/goldmark-fences
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[highlighting]: https://github.com/yuin/goldmark-highlighting
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[wikilink]: https://github.com/abhinav/goldmark-wikilink
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