oppi.li
source dump of claude code
1import { execa } from 'execa'
2import { execSync_DEPRECATED } from './execSyncWrapper.js'
3
4async function whichNodeAsync(command: string): Promise<string | null> {
5 if (process.platform === 'win32') {
6 // On Windows, use where.exe and return the first result
7 const result = await execa(`where.exe ${command}`, {
8 shell: true,
9 stderr: 'ignore',
10 reject: false,
11 })
12 if (result.exitCode !== 0 || !result.stdout) {
13 return null
14 }
15 // where.exe returns multiple paths separated by newlines, return the first
16 return result.stdout.trim().split(/\r?\n/)[0] || null
17 }
18
19 // On POSIX systems (macOS, Linux, WSL), use which
20 // Cross-platform safe: Windows is handled above
21 // eslint-disable-next-line custom-rules/no-cross-platform-process-issues
22 const result = await execa(`which ${command}`, {
23 shell: true,
24 stderr: 'ignore',
25 reject: false,
26 })
27 if (result.exitCode !== 0 || !result.stdout) {
28 return null
29 }
30 return result.stdout.trim()
31}
32
33function whichNodeSync(command: string): string | null {
34 if (process.platform === 'win32') {
35 try {
36 const result = execSync_DEPRECATED(`where.exe ${command}`, {
37 encoding: 'utf-8',
38 stdio: ['ignore', 'pipe', 'ignore'],
39 })
40 const output = result.toString().trim()
41 return output.split(/\r?\n/)[0] || null
42 } catch {
43 return null
44 }
45 }
46
47 try {
48 const result = execSync_DEPRECATED(`which ${command}`, {
49 encoding: 'utf-8',
50 stdio: ['ignore', 'pipe', 'ignore'],
51 })
52 return result.toString().trim() || null
53 } catch {
54 return null
55 }
56}
57
58const bunWhich =
59 typeof Bun !== 'undefined' && typeof Bun.which === 'function'
60 ? Bun.which
61 : null
62
63/**
64 * Finds the full path to a command executable.
65 * Uses Bun.which when running in Bun (fast, no process spawn),
66 * otherwise spawns the platform-appropriate command.
67 *
68 * @param command - The command name to look up
69 * @returns The full path to the command, or null if not found
70 */
71export const which: (command: string) => Promise<string | null> = bunWhich
72 ? async command => bunWhich(command)
73 : whichNodeAsync
74
75/**
76 * Synchronous version of `which`.
77 *
78 * @param command - The command name to look up
79 * @returns The full path to the command, or null if not found
80 */
81export const whichSync: (command: string) => string | null =
82 bunWhich ?? whichNodeSync