fun downloadAsTempFile()

in src/dagger/src.main.kts [106:133]

• 28 lines of code
• 4 McCabe index (conditional complexity)

fun downloadAsTempFile(
    url: String,
    maxRetries: Int = 3,
    backoffMillis: Long = 1000L,
): Path {
    val tempFile = Files
        .createTempFile("", url.substringAfterLast("/"))
        .toAbsolutePath()
        .also { it.toFile().deleteOnExit() }
    for (attempt in 1..maxRetries) {
        println("Downloading $url to $tempFile")
        try {
            URI(url).toURL().openStream().use { input ->
                Files.newOutputStream(tempFile).use { output ->
                    input.copyTo(output)
                }
            }
            return tempFile
        } catch (e: Throwable) {
            if (attempt == maxRetries) throw e
            val time = backoffMillis * attempt
            System.err.println("Download error: ${e.message}")
            System.err.println("Failed to download $url on $attempt attempt, will retry in ${time / 1000}s")
            Thread.sleep(time)
        }
    }
    return tempFile
}