setup-uv/src/utils/platforms.ts

export type Platform =
  | 'unknown-linux-gnu'
  | 'unknown-linux-musl'
  | 'unknown-linux-musleabihf'
  | 'apple-darwin'
  | 'pc-windows-msvc'
export type Architecture = 'i686' | 'x86_64' | 'aarch64'

export function getArch(): Architecture | undefined {
  const arch = process.arch
  const archMapping: {[key: string]: Architecture} = {
    ia32: 'i686',
    x64: 'x86_64',
    arm64: 'aarch64'
  }

  if (arch in archMapping) {
    return archMapping[arch]
  }
}

export function getPlatform(): Platform | undefined {
  const platform = process.platform
  const platformMapping: {[key: string]: Platform} = {
    linux: 'unknown-linux-gnu',
    darwin: 'apple-darwin',
    win32: 'pc-windows-msvc'
  }

  if (platform in platformMapping) {
    return platformMapping[platform]
  }
}