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Bjørn Erik Pedersen 80230f26a3
Add support for theme composition and inheritance
This commit adds support for theme composition and inheritance in Hugo.

With this, it helps thinking about a theme as a set of ordered components:

```toml
theme = ["my-shortcodes", "base-theme", "hyde"]
```

The theme definition example above in `config.toml` creates a theme with the 3 components with presedence from left to right.

So, Hugo will, for any given file, data entry etc., look first in the project, and then in `my-shortcode`, `base-theme` and lastly `hyde`.

Hugo uses two different algorithms to merge the filesystems, depending on the file type:

* For `i18n` and `data` files, Hugo merges deeply using the translation id and data key inside the files.
* For `static`, `layouts` (templates) and `archetypes` files, these are merged on file level. So the left-most file will be chosen.

The name used in the `theme` definition above must match a folder in `/your-site/themes`, e.g. `/your-site/themes/my-shortcodes`. There are  plans to improve on this and get a URL scheme so this can be resolved automatically.

Also note that a component that is part of a theme can have its own configuration file, e.g. `config.toml`. There are currently some restrictions to what a theme component can configure:

* `params` (global and per language)
* `menu` (global and per language)
* `outputformats` and `mediatypes`

The same rules apply here: The left-most param/menu etc. with the same ID will win. There are some hidden and experimental namespace support in the above, which we will work to improve in the future, but theme authors are encouraged to create their own namespaces to avoid naming conflicts.

A final note: Themes/components can also have a `theme` definition in their `config.toml` and similar, which is the "inheritance" part of this commit's title. This is currently not supported by the Hugo theme site. We will have to wait for some "auto dependency" feature to be implemented for that to happen, but this can be a powerful feature if you want to create your own theme-variant based on others.

Fixes #4460
Fixes #4450
2018-06-10 23:55:20 +02:00
.circleci Bump Go versions 2018-04-09 11:01:01 +02:00
.github Create SUPPORT.md 2018-05-21 16:56:30 +02:00
bufferpool bufpool: Add package doc 2016-04-10 01:34:15 +02:00
cache cache: Add even more concurrency to test 2017-06-28 22:47:28 +02:00
commands Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
common Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
compare Make ge, le etc. work with the Hugo Version number 2018-02-22 09:15:12 +01:00
config Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
create Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
deps Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
docs tplimpl: Remove speakerdeck shortcode 2018-06-09 11:13:36 +02:00
docshelper Add some missing doc comments 2017-08-03 15:57:51 +02:00
examples examples: Fix `now` usage in footer 2017-09-27 08:42:44 +02:00
helpers Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
hugofs Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
hugolib Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
i18n Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
langs Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
livereload livereload: Fix host comparison when ports aren't present 2017-12-16 19:06:00 +01:00
media Clean up lint in various packages 2017-09-29 16:23:16 +02:00
metrics metrics: Reset benchmark timer 2017-10-07 20:41:25 +02:00
output Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
parser parser: Add some context to front matter parse error 2018-04-17 10:20:38 +02:00
related Clean up lint in various packages 2017-09-29 16:23:16 +02:00
releaser releaser: Put release notes below /en 2018-05-25 17:53:03 +02:00
resource Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
source Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
tpl Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
transform Add some missing doc comments 2017-08-03 15:57:51 +02:00
utils utils: Use local logger 2017-02-21 09:41:56 +01:00
watcher Add some missing doc comments 2017-08-03 15:57:51 +02:00
.gitignore hugolib: Remove superflous debug file 2018-03-12 23:36:20 +01:00
.gitmodules Squashed 'docs/' changes from f9a5dc59b..76e881257 2018-04-21 23:01:55 +02:00
.mailmap Add .mailmap to get a more correct author log 2015-01-28 16:50:36 +01:00
.travis.yml Bump Go versions 2018-04-09 11:01:01 +02:00
CONTRIBUTING.md Update CONTRIBUTING.md 2018-05-01 18:02:08 +02:00
Dockerfile Fix Docker build 2018-01-31 09:16:28 +01:00
Gopkg.lock Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
Gopkg.toml dep: Update Chroma 2018-05-26 15:26:49 +02:00
LICENSE Add a GitHub compatible Apache 2 license text 2018-04-16 00:03:30 +02:00
README.md Update README.md 2018-04-09 18:06:21 +02:00
appveyor.yml Support offline builds 2018-01-11 17:22:12 +01:00
bench.sh Add GOEXE to support building with different versions of `go` 2017-07-16 00:35:15 +02:00
benchSite.sh Run benchmarks 3 times 2018-01-14 00:49:01 +01:00
goreleaser.yml releaser: Fix LICENSE vs LICENSE.md 2018-04-16 09:27:39 +02:00
magefile.go tpl/tplimpl: Extract internal templates 2018-05-04 23:12:10 +02:00
main.go commands: Make commands.Execute return a Response object 2018-04-11 20:37:08 +02:00
pull-docs.sh Allow the pull-docs script to pull other than master 2017-09-23 10:13:40 +02:00
requirements.txt travis: Pull docutils out into requirements.txt 2017-08-11 18:39:04 +02:00
snapcraft.yaml releaser: Prepare repository for 0.42-DEV 2018-05-27 10:30:06 +02:00

README.md

Hugo

A Fast and Flexible Static Site Generator built with love by bep, spf13 and friends in Go.

Website | Forum | Developer Chat (no support) | Documentation | Installation Guide | Contribution Guide | Twitter

GoDoc Linux and macOS Build Status Windows Build Status Dev chat at https://gitter.im/gohugoio/hugo Go Report Card

Overview

Hugo is a static HTML and CSS website generator written in Go. It is optimized for speed, ease of use, and configurability. Hugo takes a directory with content and templates and renders them into a full HTML website.

Hugo relies on Markdown files with front matter for metadata, and you can run Hugo from any directory. This works well for shared hosts and other systems where you dont have a privileged account.

Hugo renders a typical website of moderate size in a fraction of a second. A good rule of thumb is that each piece of content renders in around 1 millisecond.

Hugo is designed to work well for any kind of website including blogs, tumbles, and docs.

Supported Architectures

Currently, we provide pre-built Hugo binaries for Windows, Linux, FreeBSD, NetBSD, macOS (Darwin), and Android for x64, i386 and ARM architectures.

Hugo may also be compiled from source wherever the Go compiler tool chain can run, e.g. for other operating systems including DragonFly BSD, OpenBSD, Plan 9, and Solaris.

Complete documentation is available at Hugo Documentation.

Choose How to Install

If you want to use Hugo as your site generator, simply install the Hugo binaries. The Hugo binaries have no external dependencies.

To contribute to the Hugo source code or documentation, you should fork the Hugo GitHub project and clone it to your local machine.

Finally, you can install the Hugo source code with go, build the binaries yourself, and run Hugo that way. Building the binaries is an easy task for an experienced go getter.

Install Hugo as Your Site Generator (Binary Install)

Use the installation instructions in the Hugo documentation.

Build and Install the Binaries from Source (Advanced Install)

Prerequisite Tools

Vendored Dependencies

Hugo uses dep to vendor dependencies, but we don't commit the vendored packages themselves to the Hugo git repository. Therefore, a simple go get is not supported because the command is not vendor aware.

The simplest way is to use mage (a Make alternative for Go projects.)

Fetch from GitHub

go get github.com/magefile/mage
go get -d github.com/gohugoio/hugo
cd ${GOPATH:-$HOME/go}/src/github.com/gohugoio/hugo
mage vendor
mage install

If you are a Windows user, substitute the $HOME environment variable above with %USERPROFILE%.

The Hugo Documentation

The Hugo documentation now lives in its own repository, see https://github.com/gohugoio/hugoDocs. But we do keep a version of that documentation as a git subtree in this repository. To build the sub folder /docs as a Hugo site, you need to clone this repo:

git clone git@github.com:gohugoio/hugo.git

Contributing to Hugo

For a complete guide to contributing to Hugo, see the Contribution Guide.

We welcome contributions to Hugo of any kind including documentation, themes, organization, tutorials, blog posts, bug reports, issues, feature requests, feature implementations, pull requests, answering questions on the forum, helping to manage issues, etc.

The Hugo community and maintainers are very active and helpful, and the project benefits greatly from this activity.

Asking Support Questions

We have an active discussion forum where users and developers can ask questions. Please don't use the GitHub issue tracker to ask questions.

Reporting Issues

If you believe you have found a defect in Hugo or its documentation, use the GitHub issue tracker to report the problem to the Hugo maintainers. If you're not sure if it's a bug or not, start by asking in the discussion forum. When reporting the issue, please provide the version of Hugo in use (hugo version).

Submitting Patches

The Hugo project welcomes all contributors and contributions regardless of skill or experience level. If you are interested in helping with the project, we will help you with your contribution. Hugo is a very active project with many contributions happening daily.

Because we want to create the best possible product for our users and the best contribution experience for our developers, we have a set of guidelines which ensure that all contributions are acceptable. The guidelines are not intended as a filter or barrier to participation. If you are unfamiliar with the contribution process, the Hugo team will help you and teach you how to bring your contribution in accordance with the guidelines.

For a complete guide to contributing code to Hugo, see the Contribution Guide.

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