nunta/node_modules/grunt-contrib-concat/tasks/concat.js
David Miller 0025e7e961 setting up Gruntfile and dist folder
index.html, mail/, bootstrap and jquery bower components will build to
the dist folder when running grunt
2014-08-12 21:01:38 -04:00

119 lines
3.7 KiB
JavaScript

/*
* grunt-contrib-concat
* http://gruntjs.com/
*
* Copyright (c) 2014 "Cowboy" Ben Alman, contributors
* Licensed under the MIT license.
*/
'use strict';
module.exports = function(grunt) {
// Internal lib.
var comment = require('./lib/comment').init(grunt);
var chalk = require('chalk');
var sourcemap = require('./lib/sourcemap').init(grunt);
grunt.registerMultiTask('concat', 'Concatenate files.', function() {
// Merge task-specific and/or target-specific options with these defaults.
var options = this.options({
separator: grunt.util.linefeed,
banner: '',
footer: '',
stripBanners: false,
process: false,
sourceMap: false,
sourceMapName: undefined,
sourceMapStyle: 'embed'
});
// Normalize boolean options that accept options objects.
if (options.stripBanners === true) { options.stripBanners = {}; }
if (options.process === true) { options.process = {}; }
// Process banner and footer.
var banner = grunt.template.process(options.banner);
var footer = grunt.template.process(options.footer);
// Set a local variable for whether to build source maps or not.
var sourceMap = options.sourceMap;
// If content is not embedded and it will be modified, either exit or do
// not make the source map.
if (
sourceMap && options.sourceMapStyle === 'link' &&
(options.stripBanners || options.process)
) {
// Warn and exit if --force isn't set.
grunt.warn(
'stripBanners or process option is enabled. ' +
'Set sourceMapStyle option to \'embed\' or \'inline\'.'
);
// --force is set, continue on without the source map.
grunt.log.warn('Skipping creation of source maps.');
// Set sourceMap to false to keep maps from being constructed.
sourceMap = false;
}
// Iterate over all src-dest file pairs.
this.files.forEach(function(f) {
// Initialize source map objects.
var sourceMapHelper;
if (sourceMap) {
sourceMapHelper = sourcemap.helper(f, options);
sourceMapHelper.add(banner);
}
// Concat banner + specified files + footer.
var src = banner + f.src.filter(function(filepath) {
// Warn on and remove invalid source files (if nonull was set).
if (!grunt.file.exists(filepath)) {
grunt.log.warn('Source file "' + filepath + '" not found.');
return false;
} else {
return true;
}
}).map(function(filepath, i) {
if (grunt.file.isDir(filepath)) {
return;
}
// Read file source.
var src = grunt.file.read(filepath);
// Process files as templates if requested.
if (typeof options.process === 'function') {
src = options.process(src, filepath);
} else if (options.process) {
src = grunt.template.process(src, options.process);
}
// Strip banners if requested.
if (options.stripBanners) {
src = comment.stripBanner(src, options.stripBanners);
}
// Add the lines of this file to our map.
if (sourceMapHelper) {
src = sourceMapHelper.addlines(src, filepath);
if (i < f.src.length - 1) {
sourceMapHelper.add(options.separator);
}
}
return src;
}).join(options.separator) + footer;
if (sourceMapHelper) {
sourceMapHelper.add(footer);
sourceMapHelper.write();
// Add sourceMappingURL to the end.
src += sourceMapHelper.url();
}
// Write the destination file.
grunt.file.write(f.dest, src);
// Print a success message.
grunt.log.writeln('File ' + chalk.cyan(f.dest) + ' created.');
});
});
};