isCommandAvailable() — react Function Reference

Architecture documentation for the isCommandAvailable() function in utils.js from the react codebase.

Function javascript BabelCompiler Entrypoint

Entity Profile

BabelCompiler→ Entrypoint→ isCommandAvailable() — react Function Reference

Dependency Diagram

graph TD
  6c578c84_053a_2680_b611_5008f3c88874["isCommandAvailable()"]
  525ad0bb_41e8_f420_212b_50ca17253a46["utils.js"]
  6c578c84_053a_2680_b611_5008f3c88874 -->|defined in| 525ad0bb_41e8_f420_212b_50ca17253a46
  style 6c578c84_053a_2680_b611_5008f3c88874 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

scripts/tasks/generate-changelog/utils.js lines 11–35

function isCommandAvailable(command) {
  const paths = (process.env.PATH || '').split(path.delimiter);
  const extensions =
    process.platform === 'win32' && process.env.PATHEXT
      ? process.env.PATHEXT.split(';')
      : [''];

  for (let i = 0; i < paths.length; i++) {
    const dir = paths[i];
    if (!dir) {
      continue;
    }
    for (let j = 0; j < extensions.length; j++) {
      const ext = extensions[j];
      const fullPath = path.join(dir, `${command}${ext}`);
      try {
        fs.accessSync(fullPath, fs.constants.X_OK);
        return true;
      } catch {
        // Keep searching.
      }
    }
  }
  return false;
}