| 118 | // posix version |
| 119 | /** JSDoc */ |
| 120 | export function relative(from: string, to: string): string { |
| 121 | /* eslint-disable no-param-reassign */ |
| 122 | from = resolve(from).slice(1); |
| 123 | to = resolve(to).slice(1); |
| 124 | /* eslint-enable no-param-reassign */ |
| 125 | |
| 126 | const fromParts = trim(from.split('/')); |
| 127 | const toParts = trim(to.split('/')); |
| 128 | |
| 129 | const length = Math.min(fromParts.length, toParts.length); |
| 130 | let samePartsLength = length; |
| 131 | for (let i = 0; i < length; i++) { |
| 132 | if (fromParts[i] !== toParts[i]) { |
| 133 | samePartsLength = i; |
| 134 | break; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | let outputParts = []; |
| 139 | for (let i = samePartsLength; i < fromParts.length; i++) { |
| 140 | outputParts.push('..'); |
| 141 | } |
| 142 | |
| 143 | outputParts = outputParts.concat(toParts.slice(samePartsLength)); |
| 144 | |
| 145 | return outputParts.join('/'); |
| 146 | } |
| 147 | |
| 148 | // path.normalize(path) |
| 149 | // posix version |