Function installBinaries

evals/buffbench/run-buffbench.ts:269–311

* Install binaries specified in binInstalls config to a temporary directory * Returns the temporary directory path and updated env with PATH

(binInstalls: EvalDataV2['binInstalls'])

 * Returns the temporary directory path and updated env with PATH
 */
function installBinaries(binInstalls: EvalDataV2['binInstalls']): {
  tempDir: string | null
  env: Record<string, string>
} {
  if (!binInstalls || binInstalls.length === 0) {
    return { tempDir: null, env: {} }
  }

  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'codebuff-bins-'))

  const binPaths: string[] = []

  for (const bin of binInstalls) {
    try {
      execSync(bin.installScript, {
        cwd: tempDir,
        stdio: 'ignore',
        env: { ...process.env, INSTALL_DIR: tempDir },
      })

      const fullBinPath = path.join(tempDir, bin.binPath)
      if (fs.existsSync(fullBinPath)) {
        binPaths.push(path.dirname(fullBinPath))
        console.log(`✓ ${bin.name} installed at ${fullBinPath}`)
      } else {
        console.warn(
          `Warning: Expected binary not found at ${fullBinPath} after installing ${bin.name}`,
        )
      }
    } catch (error) {
      console.error(`Error installing ${bin.name}:`, error)
      throw error
    }
  }

  // Prepend all bin paths to PATH
  const updatedPath = [...binPaths, process.env.PATH].filter(Boolean).join(':')

  return {
    tempDir,
    env: { PATH: updatedPath },
  }
}

interface CommitWithSource {
  commit: EvalCommitV2