Function relativePath

packages/create/src/file-helpers.ts:65–109

(
  from: string,
  to: string,
  stripExtension: boolean = false,
)

}

export function relativePath(
  from: string,
  to: string,
  stripExtension: boolean = false,
) {
  // Always normalize backslashes to forward slashes for Windows compatibility
  const normalized = from.replace(/\\/g, '/')
  const cleanedFrom = normalized.startsWith('./')
    ? normalized.slice(2)
    : normalized
  const cleanedTo = to.startsWith('./') ? to.slice(2) : to

  const fromSegments = cleanedFrom.split('/')
  const toSegments = cleanedTo.split('/')

  fromSegments.pop()
  toSegments.pop()

  let commonIndex = 0
  while (
    commonIndex < fromSegments.length &&
    commonIndex < toSegments.length &&
    fromSegments[commonIndex] === toSegments[commonIndex]
  ) {
    commonIndex++
  }

  const upLevels = fromSegments.length - commonIndex
  const downLevels = toSegments.slice(commonIndex)

  if (stripExtension) {
    to = to.replace(extname(to), '')
  }

  if (upLevels === 0 && downLevels.length === 0) {
    return `./${basename(to)}`
  } else if (upLevels === 0 && downLevels.length > 0) {
    return `./${downLevels.join('/')}/${basename(to)}`
  } else {
    const relativePath = [...Array(upLevels).fill('..'), ...downLevels].join(
      '/',
    )
    return `${relativePath}/${basename(to)}`
  }
}

export function isDirectory(path: string): boolean {
  return statSync(path).isDirectory()