jodersky

#!/bin/bash
# Gather metrics from a Zyxel AX7501-B0 router and expose them in a Prometheus
# format.
#
# Usage:
# 1. create a user named "monitoring" (read-only access is sufficient)
# 2. change the password and IP address in this script down below
# 3. run this script
#
# Note that this script's output is ideally suited to be used in a

jodersky

#!/bin/bash
USAGE="<pattern>"
LONG_USAGE="list most recently used branches that start with <pattern>"

# shellcheck source=/dev/null
. "$(git --exec-path)/git-sh-setup"

branches=$(git branch --sort=committerdate --list "$1*" --no-merged master --format='%(refname:short)'| tail -n 5)

for branch in $branches; do

jodersky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

jodersky

object LambdaUtil:
  import java.lang.invoke.{MethodHandleInfo, SerializedLambda}

  def serializeLambda(closure: AnyRef): Array[Byte] =
    val writeReplace = closure.getClass.getDeclaredMethod("writeReplace")
    writeReplace.setAccessible(true)
    val serializable = writeReplace.invoke(closure).asInstanceOf[SerializedLambda]
    val bytes = new java.io.ByteArrayOutputStream
    val os = new java.io.ObjectOutputStream(bytes)

jodersky

def hexify(bytes: Array[Byte]): String = {
  val builder = new StringBuilder
  for (i <- 0 until bytes.length) {
    val b = bytes(i)
    val upperNibble = (b >>> 4) & 0x0f
    val lowerNibble = b & 0x0f
    builder += Character.forDigit(upperNibble, 16)
    builder += Character.forDigit(lowerNibble, 16)
  }
  builder.result()

jodersky

class FunctionExractor(using qctx: Quotes) {
  import qctx.reflect._

  private case class ToReplace(
    outerSymbol: Symbol, // where the container originally comes from, used to collect inputs to the dep
    innerTpe: TypeRepr // the original container's partition type
  )

  /**

jodersky

import mill._, scalalib._

trait JavahModule extends JavaModule {

  def javah = T {
    os.walk(compile().classes.path).filter(_.ext == "class").foreach { path =>
      sgjavah.javah(
        path.toNIO,
        T.dest.toNIO
      )

jodersky

#!/bin/bash
#
# millinit - fetch mill and initialize a project in a directory
#
# This script will query GitHub to find the newest available version of Mill. It
# will download it and initialize a directory with a basic build configuration.
#
# Usage: millinit <directory>
set -o errexit

jodersky

// This module isn't really a ScalaModule, but we use it to generate
// consolidated documentation using the Scaladoc tool.
object docs extends ScalaModule {
  def scalaVersion = "3.0.0-M3"

  def docSource = T.source(millSourcePath)

  def moduleDeps = Seq(
    ...

jodersky

In my experience, the following libraries and tools help you build Scala applications very quickly. They all require miminal setup ceremony and target the most common use-cases, without the user needing to learn new domain specific languages. Many of them take inspiration from Python's philosophy of keeping things simple (yet they are still statically typed). As such, they may not be all you ever need, but they should help you build solid applications relatively quickly.

These are of course subjective recommendations, including shameless plugs.