Function downloadWithFallback

resources/scripts/install-openclaw.js:92–120

* Attempts to download a file, trying GitHub first and falling back to mirror if needed * @param {string} version Version to download * @param {string} packageName Package filename * @param {string} tempFilename Destination path * @param {boolean} preferMirror Whether to prefer mirror source *

(version, packageName, tempFilename, preferMirror = false)

 * @returns {Promise<void>}
 */
async function downloadWithFallback(version, packageName, tempFilename, preferMirror = false) {
  const sources = preferMirror
    ? [
        { name: 'GitCode mirror', baseUrl: GITCODE_RELEASE_BASE_URL },
        { name: 'GitHub', baseUrl: GITHUB_RELEASE_BASE_URL }
      ]
    : [
        { name: 'GitHub', baseUrl: GITHUB_RELEASE_BASE_URL },
        { name: 'GitCode mirror', baseUrl: GITCODE_RELEASE_BASE_URL }
      ]

  let lastError = null

  for (const source of sources) {
    const downloadUrl = `${source.baseUrl}/${version}/${packageName}`
    console.log(`Trying ${source.name}: ${downloadUrl}`)

    try {
      await downloadWithRedirects(downloadUrl, tempFilename)
      console.log(`Downloaded successfully from ${source.name}`)
      return
    } catch (error) {
      console.warn(`Failed to download from ${source.name}: ${error.message}`)
      lastError = error
    }
  }

  throw lastError || new Error('All download sources failed')
}

/**
 * Downloads and extracts the openclaw binary for the specified platform and architecture