gulp-inline-ng2-template

Inline Angular2 HTML and CSS files into JavaScript ES5/ES6 and TypeScript files (and possibly more - not tested).


This plugin uses the ES6 template strings syntax by default _(which requires the use of a transpiler -typescript, babel, traceur- to produce valid ES5 files)_ but you can opt-in for ES5 one.

Very convenient to unit test your component or bundle your components/application (avoid extra HTTP request and keeps your source clean).

By aggressively inlining templates, component library authors can ensure that their library is
compatible with all deployment methods (SystemJS, Webpack, etc.) and avoid problems associated
with setting Component.moduleId on published components.

__note:__

* 5.0.0 - __Breaking changes__
* Drop Node 4 support (tested with node 8)
* Add sourcemap support thanks to (dhilgarth
* Fix deps warnings (thanks to vkennke)
* 4.0.0 -
* Now escapes templates (html & css) backslashes. You may remove your custom workarounds if any
* Proper error handling and propagation
* 3.0.0 - __Breaking changes__
* Change processor function signature
* 2.0.0 - __Breaking changes__
* Refactor the parser and make it async
* templateProcessor and styleProcessor now accept a callback as 3rd argument
* If you're not using the processor functions, everything will work as in 1.x.
* 1.1.5 adds customFilePath option
* 1.1.4 adds supportNonExistentFiles option
* 1.1.0 adds templateFunction when templateUrl is a function
* 1.0.0 - __Breaking changes__
* Add suppport for processors (templates & styles)
* Refactor configuration object (html and css prop dropped)
* Drop jade dependency and related config
* 0.0.11 adds option to remove line breaks
* 0.0.10 adds components relative asset paths support (see Configuration)
* 0.0.8 adds Jade support (add jade: true to your config) => __dropped in 1.0.0__
* 0.0.6 adds support to style sheets

TOC

* Installation
* Configuration
* Options
* Processors configuration
* Processor Examples
* Template function
* CustomFilePath configuration
* Example usage
* Browserify transform example
* How it works
* Contribute
* Contributors
* Todo
* Licence

Installation

``bash
npm install gulp-inline-ng2-template --save-dev
`

Configuration

$3

You can pass a configuration object to the plugin.
`javascript
defaults = {
base: '/', // Angular2 application base folder
target: 'es6', // Can swap to es5
indent: 2, // Indentation (spaces)
useRelativePaths: false, // Use components relative assset paths
removeLineBreaks: false, // Content will be included as one line
removeModuleId: false, // Remove the moduleId key from component definition after inlining styles
templateExtension: '.html', // Update according to your file extension
templateFunction: false, // If using a function instead of a string for templateUrl, pass a reference to that function here
templateProcessor: function (path, ext, file, callback) {/ ... /},
styleProcessor: function (path, ext, file, callback) {/ ... /},
customFilePath: function(ext, file) {/ ... /},
supportNonExistentFiles: false // If html or css file do not exist just return empty content
};
`

$3

`typescript
/**
* Processor function call signature and type return
*
* @Param{String} file path
* @Param{String} file extension (type)
* @Param{String} file content
* @Param{Function} callback function (err, result) => void
* @Return{void}
*/
function processor(path, ext, file, cb) {
// async implementation of your source files processing goes here ...
cb(null, file);
}
`

$3

Minify template file before inlining them

`javascript
import inlineTemplate from 'gulp-inline-ng2-template';
import htmlMinifier from 'html-minifier';

const pluginOptions = {
base: mySrcPath,
templateProcessor: minifyTemplate
};

function minifyTemplate(path, ext, file, cb) {
try {
var minifiedFile = htmlMinifier.minify(file, {
collapseWhitespace: true,
caseSensitive: true,
removeComments: true,
removeRedundantAttributes: true
});
cb(null, minifiedFile);
}
catch (err) {
cb(err);
}
}
`

_Credit @lcrodriguez_

$3

Inside your component: templateUrl: templateFunc('app.html')

`es6
/**
* Template function call signature and type return
*
* @Param{String} filename
* @Return{String} returned filename
*/
templateFunction: function (filename) {
// ...
return newFilename;
}
`

$3

`typescript
/**
* Custom function name call signature and type return
*
* @Param{String} file extension (type)
* @Param{String} file path
* @Return{String} returned file path updated
*/
function customFilePath(ext, file) {
return file;
}
`

Example usage

`javascript
//...
var inlineNg2Template = require('gulp-inline-ng2-template');

var result = gulp.src('./app/*/.ts')
.pipe(inlineNg2Template({ base: '/app' }))
.pipe(tsc());

return result.js
.pipe(gulp.dest(PATH.dest));
`

Browserify transform example

Example transform function to use with Browserify.

`javascript
// ng2inlinetransform.js
var ng2TemplateParser = require('gulp-inline-ng2-template/parser');
var through = require('through2');
var options = {target: 'es5'};

function (file) {
return through(function (buf, enc, next){
ng2TemplateParser({contents: buf, path: file}, options)((err, result) => {
this.push(result);
process.nextTick(next);
});
});
}
`

`javascript
// gulp task
return browserify('main.ts', {} )
.add(config.angularApp.additionalFiles)
.plugin(require('tsify'), {target: 'es5'})
.transform('./ng2inlinetransform')
.bundle()
.pipe(gulp.dest(config.rootDirectory))
`

_Thanks to @zsedem_

How it works

__app.html__
`html



Hello {{ world }}



`

__app.css__
`css
.hello {
color: red;
}
`

__app.ts__
`javascript
import {Component, View} from 'angular2/angular2';
@Component({ selector: 'app' })
@View({
templateUrl: './app.html',
styleUrls: ['./app.css'],
directives: [CORE_DIRECTIVES]
})
class AppCmp {}
`

__result (app.ts)__
`javascript
import {Component, View} from 'angular2/angular2';
@Component({ selector: 'app' })
@View({
template:

Hello {{ world }}

,
styles: [
.hello {
color: red;
}
],
directives: [CORE_DIRECTIVES]
})
class AppCmp {}
`

Contribute

`bash
git clone https://github.com/ludohenin/gulp-inline-ng2-template
cd gulp-inline-ng2-template
npm install
npm run test-dev
`

Contributors

!Contributors

Todo

- [ ] Append styles into styles View config property if it exist
- [ ] Add support for source maps
- [ ] Add option skipCommented`

Licence

MIT