gulp-resources v0.5.0
#gulp-resources
Extracts js/css/less and other resources from html
Installation
npm install --save-dev gulp-resourcesUsage
With this gulp plugin you can extract js/css/less resources from your html and pipe them to other plugins.
var gulp = require('gulp'),
resources = require('gulp-resources');
gulp.task('default', function () {
return gulp.src('./template.html')
.pipe(resources())
.pipe(gulp.dest('./tmp'));
});Running this example task for such html:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<link href="css/style1.css" rel="stylesheet" type="text/css">
<script src="scripts/script1.js"></script>
<script src="scripts/script2.js"></script>
<script>
console.log("inline script should not be touched by gulp-resources");
</script>
</head>
<body>
<p>gulp-resources example</p>
</body>
</html>will produce such folder with sources:
tmp
└─css
└─style1.css
└─scripts
├─script1.js
└─script2.jsFeatures and tips
gulp-resources considers every resource entry as a glob so you can do such thing in your HTML:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<link href="css/**/*.css" rel="stylesheet" type="text/css">
<script src="scripts/**/*.js"></script>
</head>
<body>
<p>gulp-resources example</p>
</body>
</html>You can use built-in options (see API) to filter resources but if you want to run gulp-resources once so good solution is to use the gulp-if plugin:
var gulp = require('gulp'),
gif = require('gulp-if'),
concat = require('gulp-concat'),
resources = require('gulp-resources');
gulp.task('default', function () {
return gulp.src('./template.html')
.pipe(resources())
.pipe(gif('**/*.js', concat('concat.js')))
.pipe(gif('**/*.css', concat('concat.css')))
.pipe(gulp.dest('./tmp'));
});Mostly you also need to replace all the resources references with concatenated and/or uglified version. Here the gulp-replace can help:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<!--startjs-->
<script src="scripts/vendor/script1.js"></script>
<script src="scripts/vendor/script2.js"></script>
<script src="scripts/vendor/script3.js"></script>
<script src="scripts/core.js"></script>
<script src="scripts/modules/**/*.js"></script>
<!--endjs-->
</head>
<body>
<p>gulp-resources example</p>
</body>
</html>var gulp = require('gulp'),
gif = require('gulp-if'),
concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
replace = require('gulp-replace'),
resources = require('gulp-resources');
gulp.task('default', function () {
return gulp.src('./template.html')
.pipe(resources())
.pipe(gif('**/*.js', concat('all.js')))
.pipe(gif('**/*.js', uglify()))
.pipe(gif('**/*.html', replace(/<!--startjs-->[^]+<!--endjs-->/, '<script src="js/all.js"></script>')))
.pipe(gulp.dest('./tmp'));
});After running the task you will have such html:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<script src="js/all.js"></script>
</head>
<body>
<p>gulp-resources example</p>
</body>
</html>It also supports resources with query parameters:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<link href="css/**/*.css?key=A34-12s" rel="stylesheet" type="text/css">
<script src="scripts/vendor/script1.js?v=3.0"></script>
<script src="scripts/modules/**/*.js?z=As42"></script>
</head>
<body>
<p>gulp-resources example</p>
</body>
</html>When appendQueryToPath option is true (false by default), vinyl files path property will contain query parameters, so if you need to read the file from file.path property, remove the query parameters before:
function readFileContents(file) {
var queryIdx = file.path.indexOf('?');
queryIdx = queryIdx < 0 ? file.path.length : queryIdx;
return fs.readFileSync(file.path.substring(0, queryIdx)).toString('utf8');
}API
resources(options)
Returns a stream with extracted resources.
options.cwd
Type: String or Array
Default: none
Without this value only working directory of processing HTML file is used to search resources. Specifying this property allows you to add another location/locations to search for resources files if they were not found with HTML's working directory.
options.js
Type: Boolean
Default: true
Specify whether to search js files
options.css
Type: Boolean
Default: true
Specify whether to search css files
options.less
Type: Boolean
Default: true
Specify whether to search less files
options.favicon
Type: Boolean
Default: false
Specify whether to search favicon file
options.skipNotExistingFiles
Type: Boolean
Default: false
Specify whether to skip errors when resource files were not found.
options.appendQueryToPath
Type: Boolean
Default: false
Append query to file.path if exists. When true, <script src="myscript.js?v3.0"></script> will produce this vinyl file:
{
base: '/',
cwd: '/',
stat: Object,
path: '/myscript.js?v3.0',
contents: Object
}When false, it will produce this one:
{
base: '/',
cwd: '/',
stat: Object,
path: '/myscript.js',
contents: Object
}License
MIT @ Eugene Gluhotorenko