node.js glob pattern for excluding multiple files - node.js

Question

I'm using the npm module node-glob.
This snippet returns recursively all files in the current working directory.
var glob = require('glob');
glob('**/*', function(err, files) {
console.log(files);
});
sample output:
[ 'index.html', 'js', 'js/app.js', 'js/lib.js' ]
I want to exclude index.html and js/lib.js.
I tried to exclude these files with negative pattern '!' but without luck.
Is there a way to achieve this only by using a pattern?

Answer 1

I suppose it's not actual anymore but I got stuck with the same question and found an answer.
This can be done using only glob module.
We need to use options as a second parameter to glob function
glob('pattern', {options}, cb)
There is an options.ignore pattern for your needs.
var glob = require('glob');
glob("**/*",{"ignore":['index.html', 'js', 'js/app.js', 'js/lib.js']}, function (err, files) {
console.log(files);
})

Answer 2

Check out globby, which is pretty much glob with support for multiple patterns and a Promise API:
const globby = require('globby');
globby(['**/*', '!index.html', '!js/lib.js']).then(paths => {
console.log(paths);
});

Answer 3

You can use node-globule for that:
var globule = require('globule');
var result = globule.find(['**/*', '!index.html', '!js/lib.js']);
console.log(result);

Answer 4

Or without an external dependency:
/**
Walk directory,
list tree without regex excludes
*/
var fs = require('fs');
var path = require('path');
var walk = function (dir, regExcludes, done) {
var results = [];
fs.readdir(dir, function (err, list) {
if (err) return done(err);
var pending = list.length;
if (!pending) return done(null, results);
list.forEach(function (file) {
file = path.join(dir, file);
var excluded = false;
var len = regExcludes.length;
var i = 0;
for (; i < len; i++) {
if (file.match(regExcludes[i])) {
excluded = true;
}
}
// Add if not in regExcludes
if(excluded === false) {
results.push(file);
// Check if its a folder
fs.stat(file, function (err, stat) {
if (stat && stat.isDirectory()) {
// If it is, walk again
walk(file, regExcludes, function (err, res) {
results = results.concat(res);
if (!--pending) { done(null, results); }
});
} else {
if (!--pending) { done(null, results); }
}
});
} else {
if (!--pending) { done(null, results); }
}
});
});
};
var regExcludes = [/index\.html/, /js\/lib\.js/, /node_modules/];
walk('.', regExcludes, function(err, results) {
if (err) {
throw err;
}
console.log(results);
});

Answer 5

Here is what I wrote for my project:
var glob = require('glob');
var minimatch = require("minimatch");
function globArray(patterns, options) {
var i, list = [];
if (!Array.isArray(patterns)) {
patterns = [patterns];
}
patterns.forEach(pattern => {
if (pattern[0] === "!") {
i = list.length-1;
while( i > -1) {
if (!minimatch(list[i], pattern)) {
list.splice(i,1);
}
i--;
}
}
else {
var newList = glob.sync(pattern, options);
newList.forEach(item => {
if (list.indexOf(item)===-1) {
list.push(item);
}
});
}
});
return list;
}
And call it like this (Using an array):
var paths = globArray(["**/*.css","**/*.js","!**/one.js"], {cwd: srcPath});
or this (Using a single string):
var paths = globArray("**/*.js", {cwd: srcPath});

Answer 6

A samples example with gulp:
gulp.task('task_scripts', function(done){
glob("./assets/**/*.js", function (er, files) {
gulp.src(files)
.pipe(gulp.dest('./public/js/'))
.on('end', done);
});
});