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dea71670c0
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
76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
// Copyright 2017-present The Hugo Authors. All rights reserved.
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//
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// Portions Copyright The Go Authors.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tplimpl
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import (
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"html/template"
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"github.com/gohugoio/hugo/deps"
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"github.com/gohugoio/hugo/tpl/internal"
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// Init the namespaces
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_ "github.com/gohugoio/hugo/tpl/cast"
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_ "github.com/gohugoio/hugo/tpl/collections"
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_ "github.com/gohugoio/hugo/tpl/compare"
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_ "github.com/gohugoio/hugo/tpl/crypto"
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_ "github.com/gohugoio/hugo/tpl/data"
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_ "github.com/gohugoio/hugo/tpl/encoding"
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_ "github.com/gohugoio/hugo/tpl/fmt"
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_ "github.com/gohugoio/hugo/tpl/images"
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_ "github.com/gohugoio/hugo/tpl/inflect"
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_ "github.com/gohugoio/hugo/tpl/lang"
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_ "github.com/gohugoio/hugo/tpl/math"
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_ "github.com/gohugoio/hugo/tpl/os"
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_ "github.com/gohugoio/hugo/tpl/partials"
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_ "github.com/gohugoio/hugo/tpl/path"
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_ "github.com/gohugoio/hugo/tpl/resources"
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_ "github.com/gohugoio/hugo/tpl/safe"
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_ "github.com/gohugoio/hugo/tpl/strings"
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_ "github.com/gohugoio/hugo/tpl/time"
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_ "github.com/gohugoio/hugo/tpl/transform"
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_ "github.com/gohugoio/hugo/tpl/urls"
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)
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func createFuncMap(d *deps.Deps) map[string]interface{} {
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funcMap := template.FuncMap{}
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// Merge the namespace funcs
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for _, nsf := range internal.TemplateFuncsNamespaceRegistry {
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ns := nsf(d)
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if _, exists := funcMap[ns.Name]; exists {
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panic(ns.Name + " is a duplicate template func")
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}
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funcMap[ns.Name] = ns.Context
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for _, mm := range ns.MethodMappings {
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for _, alias := range mm.Aliases {
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if _, exists := funcMap[alias]; exists {
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panic(alias + " is a duplicate template func")
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}
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funcMap[alias] = mm.Method
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}
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}
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}
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return funcMap
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}
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func (t *templateFuncster) initFuncMap(funcMap template.FuncMap) {
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t.funcMap = funcMap
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t.Tmpl.(*templateHandler).setFuncs(funcMap)
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}
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