suspend fun retry()

in src/setup-bazelisk/src.main.kts [251:275]

• 24 lines of code
• 7 McCabe index (conditional complexity)

    suspend fun <T> retry(body: suspend () -> T): T {
        contract {
            callsInPlace(body, InvocationKind.AT_LEAST_ONCE)
        }

        var effectiveDelay = INITIAL_DELAY_MS
        for (i in 1..MAX_ATTEMPTS) try {
            return body()
        } catch (e: Throwable) {
            if (e is CancellationException) {
                throw e
            }
            if (i == MAX_ATTEMPTS) {
                error("'${e.toString()} (Failed all $MAX_ATTEMPTS attempts)'")
            }
            if (i > 1) {
                effectiveDelay = backOff(effectiveDelay, e)
            }
            println("Retry $i of $MAX_ATTEMPTS failed with '${e.toString()}'. Retrying in ${effectiveDelay}ms")
            if (effectiveDelay > 0) {
                delay(effectiveDelay)
            }
        }
        error("Should not be reached")
    }