index.js
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'use strict';
var Promise = require('pinkie-promise');
var arrayUnion = require('array-union');
var objectAssign = require('object-assign');
var glob = require('glob');
var pify = require('pify');
var globP = pify(glob, Promise).bind(glob);
function isNegative(pattern) {
return pattern[0] === '!';
}
function isString(value) {
return typeof value === 'string';
}
function assertPatternsInput(patterns) {
if (!patterns.every(isString)) {
throw new TypeError('patterns must be a string or an array of strings');
}
}
function generateGlobTasks(patterns, opts) {
patterns = [].concat(patterns);
assertPatternsInput(patterns);
var globTasks = [];
opts = objectAssign({
cache: Object.create(null),
statCache: Object.create(null),
realpathCache: Object.create(null),
symlinks: Object.create(null),
ignore: []
}, opts);
patterns.forEach(function (pattern, i) {
if (isNegative(pattern)) {
return;
}
var ignore = patterns.slice(i).filter(isNegative).map(function (pattern) {
return pattern.slice(1);
});
globTasks.push({
pattern: pattern,
opts: objectAssign({}, opts, {
ignore: opts.ignore.concat(ignore)
})
});
});
return globTasks;
}
module.exports = function (patterns, opts) {
var globTasks;
try {
globTasks = generateGlobTasks(patterns, opts);
} catch (err) {
return Promise.reject(err);
}
return Promise.all(globTasks.map(function (task) {
return globP(task.pattern, task.opts);
})).then(function (paths) {
return arrayUnion.apply(null, paths);
});
};
module.exports.sync = function (patterns, opts) {
var globTasks = generateGlobTasks(patterns, opts);
return globTasks.reduce(function (matches, task) {
return arrayUnion(matches, glob.sync(task.pattern, task.opts));
}, []);
};
module.exports.generateGlobTasks = generateGlobTasks;
module.exports.hasMagic = function (patterns, opts) {
return [].concat(patterns).some(function (pattern) {
return glob.hasMagic(pattern, opts);
});
};