Created
September 16, 2014 15:06
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Gulp Receipe: Generating a file per folder
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/* | |
If you have a set of folders, and wish to perform a set of tasks on each, for instance... | |
/scripts | |
/scripts/jquery/*.js | |
/scripts/angularjs/*.js | |
...and want to end up with... | |
/scripts | |
/scripts/jquery.min.js | |
/scripts/angularjs.min.js | |
...you'll need to do something like the following... | |
*/ | |
var fs = require('fs'); | |
var path = require('path'); | |
var merge = require('merge-stream'); | |
var gulp = require('gulp'); | |
var concat = require('gulp-concat'); | |
var rename = require('gulp-rename'); | |
var uglify = require('gulp-uglify'); | |
var scriptsPath = 'src/scripts'; | |
function getFolders(dir) { | |
return fs.readdirSync(dir) | |
.filter(function(file) { | |
return fs.statSync(path.join(dir, file)).isDirectory(); | |
}); | |
} | |
gulp.task('scripts', function() { | |
var folders = getFolders(scriptsPath); | |
var tasks = folders.map(function(folder) { | |
// concat into foldername.js | |
// write to output | |
// minify | |
// rename to folder.min.js | |
// write to output again | |
return gulp.src(path.join(scriptsPath, folder, '/*.js')) | |
.pipe(concat(folder + '.js')) | |
.pipe(gulp.dest(scriptsPath)) | |
.pipe(uglify()) | |
.pipe(rename(folder + '.min.js')) | |
.pipe(gulp.dest(scriptsPath)); | |
}); | |
return merge(tasks); | |
}); | |
/* | |
A few notes: | |
folders.map - executes the function once per folder, and returns the async stream | |
es.concat - combines the streams and ends only when all streams emitted end | |
*/ |
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