| 104 | from = PATH_FS.resolve(from).slice(1); |
| 105 | to = PATH_FS.resolve(to).slice(1); |
| 106 | function trim(arr) { |
| 107 | var start = 0; |
| 108 | for (; start < arr.length; start++) { |
| 109 | if (arr[start] !== '') break; |
| 110 | } |
| 111 | var end = arr.length - 1; |
| 112 | for (; end >= 0; end--) { |
| 113 | if (arr[end] !== '') break; |
| 114 | } |
| 115 | if (start > end) return []; |
| 116 | return arr.slice(start, end - start + 1); |
| 117 | } |
| 118 | var fromParts = trim(from.split('/')); |
| 119 | var toParts = trim(to.split('/')); |
| 120 | var length = Math.min(fromParts.length, toParts.length); |