4091283773
- title-util.ts: folderFromTitle() parses 'user@host:~/path' → last folder segment (home stays ~); pure, dependency-free, 7 unit tests - terminal-session.ts: onTitleChange → folderFromTitle so the tab auto-names to the cwd folder and updates live on cd - Browser-verified: ~ → cd project → 'web-terminal' → cd docs → 'docs' → cd ~ → '~'. 198 tests green, typecheck + build ok.
26 lines
916 B
TypeScript
26 lines
916 B
TypeScript
/**
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* public/title-util.ts — derive a short tab title from a terminal OSC title.
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*
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* Pure, dependency-free (no xterm/DOM) so it's unit-testable in node.
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*/
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/**
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* Derive the **current folder** from the terminal's OSC title.
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*
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* Most shells emit titles like `user@host:~/path/to/dir` (zsh/bash default).
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* Take the part after the last ':' (the path), then its last segment (the
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* folder name). `~` (home) stays `~`. Returns null for an empty title; falls
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* back to the raw-ish basename when there's no `user@host:` shape (e.g. a
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* running command title).
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*/
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export function folderFromTitle(title: string): string | null {
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let s = title.trim()
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if (!s) return null
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const colon = s.lastIndexOf(':')
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if (colon !== -1) s = s.slice(colon + 1).trim()
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s = s.replace(/\/+$/, '') // strip trailing slash
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const slash = s.lastIndexOf('/')
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if (slash !== -1) s = s.slice(slash + 1)
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return s || null
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}
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