dwijnand

// C+P from https://github.com/nafg/slick-additions/blob/63de5af9c7791c5523865d362c27380e3d031b19/bintray.sbt

publishMavenStyle := true

publishTo := Some("Slick-additions Bintray" at "https://api.bintray.com/maven/naftoligug/maven/slick-additions")

sys.env.get("BINTRAYKEY").toSeq map (key =>
  credentials += Credentials(
    "Bintray API Realm",
    "api.bintray.com",

dwijnand

+-----------------------------------------------------------------------------------------------------+
|  name   |  bits  | bytes  |  min  | actual min value           |  max   | actual max value          |
|---------+--------+--------+-------+----------------------------+--------+---------------------------|
| boolean |  1-bit |   --   | false |                            | true   |                           |
| byte    |  8-bit | 1-byte | -2^7  | -128                       | 2^7-1  | 127                       |
| short   | 16-bit | 2-byte | -2^15 | -32'768                    | 2^15-1 | 32'767                    |
| char    | 16-bit | 2-byte | 0     | '\u0000'                   | 2^16-1 | '\uffff'  (65535)         |
| int     | 32-bit | 4-byte | -2^31 | -2'147'483'648             | 2^31-1 | 2'147'483'647             |
| long    | 64-bit | 8-byte | -2^63 | -9'223'372'036'854'775'808 | 2^63-1 | 9'223'372'036'854'775'807 |
| float   | 32-bit | 4-byte | +/- -3.4028235 * 10^38             | +/- 3.4028235 * 10^38

dwijnand

val dependencyList = taskKey[File]("")

val dependencyListDef = Def.task {
  val f = baseDirectory.value / "deps.sbt.txt"
  streams.value.log.info(s"Writing to $f")
  IO.write(f, "\n")
  IO.append(f, "The following files have been resolved:\n")
  val cp = (managedClasspath in Test).value
  val lines = cp map { att =>
    val md = att.metadata

dwijnand

def buildTimestampSuffix = ";build.timestamp=" + new java.util.Date().getTime

val localArtifactoryRelease       = "local-artifactory-release"        at "http://localhost:8081/artifactory/libs-release"
val localArtifactorySnapshot      = "local-artifactory-snapshot"       at "http://localhost:8081/artifactory/libs-snapshot"
val localArtifactoryReleaseLocal  = "local-artifactory-release-local"  at "http://localhost:8081/artifactory/libs-release-local"
def localArtifactorySnapshotLocal = "local-artifactory-snapshot-local" at "http://localhost:8081/artifactory/libs-snapshot-local" + buildTimestampSuffix

val localArtifactoryCreds = Credentials("Artifactory Realm", "localhost", "admin", "password")

// credentials += localArtifactoryCreds

dwijnand

domain.com vs www.domain.com

301 Moved Permanently
302 Found

GET http://google.com      -> 302 http://www.google.co.uk
GET http://www.google.com  -> 302 http://www.google.co.uk
GET https://google.com     -> 302 https://www.google.co.uk
GET https://www.google.com -> 302 https://www.google.co.uk

dwijnand

lo/hi

enc/dec
fst/snd
get/put/del
new/add/mod/del/(rem)
old/new
req/rsp
src/dst
usr/pwd

dwijnand

import akka.actor.{ Actor, ActorRef, ActorSystem, Props }

import scala.reflect.ClassTag

object CrossActorSystemMessageTest {
  def main(args: Array[String]): Unit = {
    val fooActorSystem = ActorSystem("foo")
    val barActorSystem = ActorSystem("bar")

    val foo = fooActorSystem.mkActor("fooActor", new Foo)

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  def nowIso8601() = {
    val df = new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
    df setTimeZone (java.util.TimeZone getTimeZone "UTC")
    df format new java.util.Date()
  }

dwijnand

import java.io.{ByteArrayOutputStream, PrintStream}
import java.security.MessageDigest

/** Identifies throwables by creating checksums (like MD5 or SHA1) of its stacktrace. */
object ErrId {
  /** Returns the absolute checksum of the specified throwable. */
  def absolute(t: Throwable): String = {
    val bytes = stackBytes(t)

    val md = sha1er

dwijnand

def digest(in: InputStream, md: MessageDigest): Array[Byte] = {
  val buffer = new Array[Byte](0x1000)
  @tailrec
  def loop(count: Int): Array[Byte] = {
    if (count == -1)
      md.digest
    else {
      md.update(buffer, 0, count)
      loop(in read buffer)
    }