import { access } from 'node:fs/promises';
import { constants } from 'node:fs';
import { delimiter, join } from 'node:path';
import os from 'node:os';
import { execa } from 'execa';
import { createLogger } from '../logger.js';
const log = createLogger('lib.coderabbit');
let cachedBinary = null;
let cachedVersion = null;
const EXECUTABLE = os.platform() === 'win32' ? ['coderabbit.exe', 'coderabbit.cmd', 'coderabbit.bat'] : ['coderabbit'];
async function isExecutable(path) {
try {
await access(path, constants.X_OK);
return true;
}
catch {
return false;
}
}
function unique(items) {
return Array.from(new Set(items));
}
function resolveSearchPaths() {
const envPath = process.env.PATH ?? '';
return envPath.split(delimiter).filter(Boolean);
}
export async function resolveCoderabbitBinary(forceRefresh = false) {
if (!forceRefresh && cachedBinary) {
return cachedBinary;
}
const explicit = process.env.CODERABBIT_CLI_PATH;
if (explicit && (await isExecutable(explicit))) {
cachedBinary = explicit;
return explicit;
}
for (const entry of unique(resolveSearchPaths())) {
for (const candidate of EXECUTABLE) {
const full = join(entry, candidate);
if (await isExecutable(full)) {
cachedBinary = full;
return full;
}
}
}
throw new Error('coderabbit CLI not found on PATH. Use run_review to receive setup guidance or set CODERABBIT_CLI_PATH.');
}
export async function coderabbitVersion(forceRefresh = false) {
if (!forceRefresh && cachedVersion) {
return cachedVersion;
}
const binary = await resolveCoderabbitBinary(forceRefresh);
const { stdout } = await execa(binary, ['--version']);
const version = stdout.trim();
cachedVersion = version;
await log.info('detected coderabbit version', { version });
return version;
}
export function clearCachedBinary() {
cachedBinary = null;
cachedVersion = null;
}
export async function runCoderabbitSubcommand(args, options = {}) {
const binary = await resolveCoderabbitBinary();
return execa(binary, args, {
cwd: options.cwd,
timeout: options.timeoutMs,
cancelSignal: options.cancelSignal,
all: true,
reject: false,
env: options.env
});
}
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