59 lines
1.1 KiB
JavaScript
59 lines
1.1 KiB
JavaScript
'use strict';
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var path = require('path');
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var findIndex = require('find-index');
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var flattenGlob = function(arr){
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var out = [];
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var flat = true;
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for(var i = 0; i < arr.length; i++) {
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if (typeof arr[i] !== 'string') {
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flat = false;
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break;
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}
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out.push(arr[i]);
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}
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// last one is a file or specific dir
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// so we pop it off
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if (flat) {
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out.pop();
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}
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return out;
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};
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var flattenExpansion = function(set) {
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var first = set[0];
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var toCompare = set.slice(1);
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// find index where the diff is
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var idx = findIndex(first, function(v, idx){
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if (typeof v !== 'string') {
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return true;
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}
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var matched = toCompare.every(function(arr){
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return v === arr[idx];
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});
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return !matched;
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});
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return first.slice(0, idx);
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};
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var setToBase = function(set) {
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// normal something/*.js
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if (set.length <= 1) {
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return flattenGlob(set[0]);
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}
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// has expansion
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return flattenExpansion(set);
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};
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module.exports = function(glob) {
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var set = glob.minimatch.set;
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var baseParts = setToBase(set);
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var basePath = path.normalize(baseParts.join(path.sep))+path.sep;
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return basePath;
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};
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