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truewhile
72 lines
2.5 KiB
TypeScript
72 lines
2.5 KiB
TypeScript
/** 取路径最后一级目录/文件名（兼容 / 与 \\）。 */
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export function lastPathSegment(path: string): string {
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const trimmed = path.trim().replace(/[\\/]+$/, '')
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if (!trimmed) return ''
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const parts = trimmed.split(/[/\\]/).filter(Boolean)
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return parts[parts.length - 1] ?? ''
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}
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/**
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* 取远端末级目录的展示/拼接名。115 等以 ID 作为 remote_path 的网盘
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* 传入浏览时拿到的目录名 tailName，避免把数字 ID 拼进本地路径。
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*/
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export function resolveRemoteTailName(remotePath: string, tailName?: string): string {
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const name = tailName?.trim()
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if (name) return name
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return lastPathSegment(remotePath)
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}
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/** 优先取展示路径（115 浏览/反查得到）的末级目录名，否则取远端路径末段。 */
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export function remoteTailNameOf(remotePath: string, displayPath?: string): string {
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const trimmed = displayPath?.trim()
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if (trimmed) return lastPathSegment(trimmed)
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return lastPathSegment(remotePath)
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}
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function pathSeparator(path: string): '/' | '\\' {
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return path.includes('\\') ? '\\' : '/'
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}
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function normalizeSlashes(path: string): string {
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return path.replace(/\\/g, '/').replace(/\/+$/, '')
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}
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/** 去掉 local 末尾与 prevRemoteTail 匹配的自动拼接段。 */
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function stripRemoteTail(localPath: string, prevRemoteTail: string): string {
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if (!prevRemoteTail) return localPath.trim()
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const trimmed = localPath.trim()
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if (!trimmed) return ''
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const norm = normalizeSlashes(trimmed)
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const suffix = '/' + prevRemoteTail
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if (norm.endsWith(suffix)) {
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const stripped = norm.slice(0, -suffix.length)
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if (!stripped) return ''
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return stripped.split('/').join(pathSeparator(trimmed))
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}
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if (norm === prevRemoteTail) return ''
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return trimmed
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}
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/** 将远端最后一级目录名拼到本地输出目录末尾；远端变更时替换旧尾段。tailName 为浏览时拿到的目录名。 */
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export function syncLocalPathWithRemote(
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localPath: string,
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remotePath: string,
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prevRemoteTail = '',
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tailName?: string,
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): { localPath: string; remoteTail: string } {
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const remoteTail = resolveRemoteTailName(remotePath, tailName)
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const base = stripRemoteTail(localPath, prevRemoteTail)
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if (!remoteTail) {
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return { localPath: base || localPath.trim(), remoteTail: '' }
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}
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if (!base) {
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return { localPath: localPath.trim(), remoteTail }
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}
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const sep = pathSeparator(base)
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const normBase = normalizeSlashes(base)
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if (normBase.endsWith('/' + remoteTail)) {
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return { localPath: base, remoteTail }
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}
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return { localPath: `${base}${sep}${remoteTail}`, remoteTail }
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}
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