Bill
9a330499de
PowerShell/cmd users hop drives with a bare 'd:' — no cd keyword — so the typed-command tracker never saw it, the pane's cwd stayed at its creation directory, and the session snapshot restored it to home. Treat a bare drive-letter line as a cd to the drive root; the main-process existence check drops it on platforms without drive letters.
53 lines
2.1 KiB
TypeScript
53 lines
2.1 KiB
TypeScript
/**
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* Working-directory tracking helpers.
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*
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* Two signals feed the same store:
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* 1. the shell itself, over OSC 7 (`file://host/path`) or ConEmu's OSC 9;9 —
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* exact, but only present when shell integration is on;
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* 2. the command the user typed, matched against the `cd` family plus the
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* bare drive switch (`d:`) of cmd.exe / PowerShell — the fallback that
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* works with no shell cooperation at all.
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*
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* Both are platform-neutral: path resolution and existence checks happen in the
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* main process (`src/main/cwd.ts`) where node's `path` lives, so nothing here
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* assumes backslashes or drive letters.
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*/
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/**
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* The `cd` family, per shell:
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* bash/zsh/dash/fish cd
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* cmd.exe cd, chdir
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* PowerShell cd (alias), sl (alias), Set-Location, pushd/Push-Location
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* The `$` anchor is what keeps lookalikes out: `cdrom`, `cdemo` never match.
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*/
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const CD_COMMAND = /^\s*(?:cd|chdir|sl|set-location|pushd|push-location)(?:\s+([\s\S]*))?$/i
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/**
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* Bare drive switch (`d:`, `D:`) — cmd.exe and PowerShell change the current
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* drive with no `cd` keyword at all, and it is the common way to land on
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* another drive on Windows. Treated as a cd to the drive root; the main
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* process's existence check quietly drops it on platforms where drive
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* letters mean nothing (POSIX resolves it to a nonexistent relative path).
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*/
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const DRIVE_SWITCH = /^\s*([a-zA-Z]):\s*$/
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/**
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* Return the argument of a cd-style command line, or null when the line is not
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* one. An empty string means "bare cd" (the shell's home directory). A bare
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* drive switch yields the drive root (`D:\`).
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*/
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export function cdArgument(line: string): string | null {
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const match = line.match(CD_COMMAND)
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if (match) return (match[1] ?? '').trim()
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const drive = line.match(DRIVE_SWITCH)
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if (drive) return `${drive[1].toUpperCase()}:\\`
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return null
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}
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/** Payload of an OSC 9 sequence that follows the ConEmu `9;<path>` convention. */
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export function conemuCwd(payload: string): string | null {
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if (!payload.startsWith('9;')) return null
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const value = payload.slice(2).trim()
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return value || null
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}
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