hugo/tpl
Bjørn Erik Pedersen dea71670c0
Add Hugo Piper with SCSS support and much more
Before this commit, you would have to use page bundles to do image processing etc. in Hugo.

This commit adds

* A new `/assets` top-level project or theme dir (configurable via `assetDir`)
* A new template func, `resources.Get` which can be used to "get a resource" that can be further processed.

This means that you can now do this in your templates (or shortcodes):

```bash
{{ $sunset := (resources.Get "images/sunset.jpg").Fill "300x200" }}
```

This also adds a new `extended` build tag that enables powerful SCSS/SASS support with source maps. To compile this from source, you will also need a C compiler installed:

```
HUGO_BUILD_TAGS=extended mage install
```

Note that you can use output of the SCSS processing later in a non-SCSSS-enabled Hugo.

The `SCSS` processor is a _Resource transformation step_ and it can be chained with the many others in a pipeline:

```bash
{{ $css := resources.Get "styles.scss" | resources.ToCSS | resources.PostCSS | resources.Minify | resources.Fingerprint }}
<link rel="stylesheet" href="{{ $styles.RelPermalink }}" integrity="{{ $styles.Data.Digest }}" media="screen">
```

The transformation funcs above have aliases, so it can be shortened to:

```bash
{{ $css := resources.Get "styles.scss" | toCSS | postCSS | minify | fingerprint }}
<link rel="stylesheet" href="{{ $styles.RelPermalink }}" integrity="{{ $styles.Data.Digest }}" media="screen">
```

A quick tip would be to avoid the fingerprinting part, and possibly also the not-superfast `postCSS` when you're doing development, as it allows Hugo to be smarter about the rebuilding.

Documentation will follow, but have a look at the demo repo in https://github.com/bep/hugo-sass-test

New functions to create `Resource` objects:

* `resources.Get` (see above)
* `resources.FromString`: Create a Resource from a string.

New `Resource` transformation funcs:

* `resources.ToCSS`: Compile `SCSS` or `SASS` into `CSS`.
* `resources.PostCSS`: Process your CSS with PostCSS. Config file support (project or theme or passed as an option).
* `resources.Minify`: Currently supports `css`, `js`, `json`, `html`, `svg`, `xml`.
* `resources.Fingerprint`: Creates a fingerprinted version of the given Resource with Subresource Integrity..
* `resources.Concat`: Concatenates a list of Resource objects. Think of this as a poor man's bundler.
* `resources.ExecuteAsTemplate`: Parses and executes the given Resource and data context (e.g. .Site) as a Go template.

Fixes #4381
Fixes #4903
Fixes #4858
2018-07-06 11:46:12 +02:00
..
cast tpl: Add float template function 2017-09-28 16:53:18 +02:00
collections Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00
compare Properly handle -DEV suffix when comparing Hugo versions 2018-02-22 17:16:42 +01:00
crypto all: Update import paths to gohugoio/hugo 2017-06-13 18:42:45 +02:00
data Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
encoding all: Update import paths to gohugoio/hugo 2017-06-13 18:42:45 +02:00
fmt tpl: Add errorf template function 2017-10-03 07:59:51 +02:00
images tpl/images: Close image file 2017-11-25 18:38:33 +01:00
inflect vendor: Fix Humanize for multi-byte runes 2017-11-28 21:16:01 +01:00
internal all: Fix spelling 2017-08-07 20:19:24 +02:00
lang Add a way to merge pages by language 2018-03-16 10:10:01 +01:00
math tpl/math: Refactor Mod with cast 2017-10-30 21:55:36 +01:00
os Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00
partials Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00
path tpl/path: Add path.Ext, path.Dir and path.Base 2018-04-22 10:57:37 +02:00
resources Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00
safe Run gofmt to get imports in line vs gohugoio/hugo 2017-06-13 19:12:10 +02:00
strings tpl/strings: strings.RuneCount 2018-06-04 20:47:03 +03:00
time tpl/time: Add time.Duration and time.ParseDuration template funcs 2017-09-09 09:43:00 +02:00
tplimpl Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00
transform Add support for theme composition and inheritance 2018-06-10 23:55:20 +02:00
urls tpl/urls: Add anchorize template func 2018-04-15 23:17:50 +02:00
template.go Add Hugo Piper with SCSS support and much more 2018-07-06 11:46:12 +02:00