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source dump of claude code forked from oppi.li/claude-code
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3.7 kB · 107 lines
TypeScript
at main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108import { realpath, stat } from 'fs/promises'import { getPlatform } from '../platform.js'import { which } from '../which.js'
async function probePath(p: string): Promise<string | null> { try { return (await stat(p)).isFile() ? p : null } catch { return null }}
/** * Attempts to find PowerShell on the system via PATH. * Prefers pwsh (PowerShell Core 7+), falls back to powershell (5.1). * * On Linux, if PATH resolves to a snap launcher (/snap/…) — directly or * via a symlink chain like /usr/bin/pwsh → /snap/bin/pwsh — probe known * apt/rpm install locations instead: the snap launcher can hang in * subprocesses while snapd initializes confinement, but the underlying * binary at /opt/microsoft/powershell/7/pwsh is reliable. On * Windows/macOS, PATH is sufficient. */export async function findPowerShell(): Promise<string | null> { const pwshPath = await which('pwsh') if (pwshPath) { // Snap launcher hangs in subprocesses. Prefer the direct binary. // Check both the resolved PATH entry and its symlink target: on // some distros /usr/bin/pwsh is a symlink to /snap/bin/pwsh, which // would bypass a naive startsWith('/snap/') on the which() result. if (getPlatform() === 'linux') { const resolved = await realpath(pwshPath).catch(() => pwshPath) if (pwshPath.startsWith('/snap/') || resolved.startsWith('/snap/')) { const direct = (await probePath('/opt/microsoft/powershell/7/pwsh')) ?? (await probePath('/usr/bin/pwsh')) if (direct) { const directResolved = await realpath(direct).catch(() => direct) if ( !direct.startsWith('/snap/') && !directResolved.startsWith('/snap/') ) { return direct } } } } return pwshPath }
const powershellPath = await which('powershell') if (powershellPath) { return powershellPath }
return null}
let cachedPowerShellPath: Promise<string | null> | null = null
/** * Gets the cached PowerShell path. Returns a memoized promise that * resolves to the PowerShell executable path or null. */export function getCachedPowerShellPath(): Promise<string | null> { if (!cachedPowerShellPath) { cachedPowerShellPath = findPowerShell() } return cachedPowerShellPath}
export type PowerShellEdition = 'core' | 'desktop'
/** * Infers the PowerShell edition from the binary name without spawning. * - `pwsh` / `pwsh.exe` → 'core' (PowerShell 7+: supports `&&`, `||`, `?:`, `??`) * - `powershell` / `powershell.exe` → 'desktop' (Windows PowerShell 5.1: * no pipeline chain operators, stderr-sets-$? bug, UTF-16 default encoding) * * PowerShell 6 (also `pwsh`, no `&&`) has been EOL since 2020 and is not * a realistic install target, so 'core' safely implies 7+ semantics. * * Used by the tool prompt to give version-appropriate syntax guidance so * the model doesn't emit `cmd1 && cmd2` on 5.1 (parser error) or avoid * `&&` on 7+ where it's the correct short-circuiting operator. */export async function getPowerShellEdition(): Promise<PowerShellEdition | null> { const p = await getCachedPowerShellPath() if (!p) return null // basename without extension, case-insensitive. Covers: // C:\Program Files\PowerShell\7\pwsh.exe // /opt/microsoft/powershell/7/pwsh // C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe const base = p .split(/[/\\]/) .pop()! .toLowerCase() .replace(/\.exe$/, '') return base === 'pwsh' ? 'core' : 'desktop'}
/** * Resets the cached PowerShell path. Only for testing. */export function resetPowerShellCache(): void { cachedPowerShellPath = null}