will

import Foundation
import AppKit

class AppDelegate: NSObject, NSApplicationDelegate {
  func applicationDidFinishLaunching(_ notification: Notification) {
    DistributedNotificationCenter.default.addObserver(
      forName: Notification.Name("AppleInterfaceThemeChangedNotification"),
      object: nil, queue: nil,
      using: self.themeChanged(notification:)
    )

will

[live sorbet plagyround link](https://sorbet.run/#%23%20typed%3A%20strict%0A%0Aclass%20A%0A%20%20extend%20T%3A%3ASig%0A%20%20%0A%20%20%23%20many%20(nearly%20all%3F)%20return%20types%20from%20auto-generated%0A%20%20%23%20rbi%20for%20gems%20are%20T.untyped%0A%20%20sig%20%7B%20returns%20T.untyped%20%7D%0A%20%20def%20num%0A%20%20%20%203%0A%20%20end%0A%20%0A%20%20%23%20same%20method%2C%20but%20not%20T.untyped%0A%20%20sig%20%7B%20returns%20Integer%20%7D%0A%20%20def%20num!%0A%20%20%20%203%0A%20%20end%0Aend%0A%0Aextend%20T%3A%3ASig%0A%0Asig%20%7Bparams(x%3A%20Integer).returns(String)%7D%0Adef%20bar(x)%0A%20%20x.to_s%0Aend%0A%0Asig%20%7B%20returns%20T.nilable%20A%20%7D%0Adef%20maybe_a%0A%20%20rand%20%3E%200.5%20%3F%20A.new%20%3A%20nil%0Aend%0A%0A%23%20both%20have%20a%20type%20error%3A%20%0A%23%20%20%20Method%20num%20(or%20num!)%20does%20not%20exist%20on%20NilClass%20component%20of%20T.nilable(A)%0A%23%20and%20this%20makes%20sense%2C%20since%20%60maybe_a%60%20can%20be%20nil%0Abar%20maybe_a.num%0Abar%20maybe_a.num!%0A%0

will

SELECT
   n.nspname as "Schema",
  c.relname as "Name",
  a.attname,
  pg_catalog.format_type(a.atttypid, a.atttypmod),
  a.attrelid as table_id,
  (SELECT c.collname FROM pg_catalog.pg_collation c, pg_catalog.pg_type t
   WHERE c.oid = a.attcollation AND t.oid = a.atttypid AND a.attcollation <> t.typcollation) AS attcollation
FROM pg_catalog.pg_class c
     LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace

will

# on remote machine
# nc -l -p 1212

# on local machine
ssh = Net::SSH.start(remote.ip, "centos", keys_only: true, key_data: [remote.ssh_key])

tempfile = Tempfile.new("net_ssh_forward_test")
path = tempfile.path
tempfile.delete

will

/t/test> cat a.cr
def go
  a = 0
  10.times do
    a += 1
  end

  p a
end

will

class ExpMovingStats
  def initialize(@alpha : Float32)
    @mean = 0.0
    @variance = 0.0
  end

  def update(n)
    n = n.to_f32
    beta = 1.0 - @alpha

will

http://github.com/FiloSottile/age

~> ./Downloads/age/age-keygen > key
Warning: writing to a world-readable file.
Consider setting the umask to 066 and trying again.
Public key: age1gnf3ahtvwhtpdc47jtec6t7nn2n2rrxla7wfk9kswvep66ypk5sqgz6f04
~> cat key
# created: 2020-05-29T23:02:29-07:00
# public key: age1gnf3ahtvwhtpdc47jtec6t7nn2n2rrxla7wfk9kswvep66ypk5sqgz6f04
AGE-SECRET-KEY-1N2DZHD52AGASHWJAMNVFQJGHVR9FZF77NVNVPRXTEPECZ7YD3MDQXKERX6

will

• Fuzzing finds bugs feeding malformed or semi-maifomred data into a program.

• This unexpected input can hopefully find bugs before they are found by attackers.

• coverage guided or not

• greg stark 2016

• problems coverage guided and postgres

• sqlsmith https://github.com/anse1/sqlsmith

will

require "fileutils"
require "tmpdir"

class PGCoreDump
  attr_reader :file, :term, :bt, :query, :basename, :sha256
  def initialize(file, basename)
    @basename = basename
    @file = file
  end

will

mkdir /asa
cd /asa
curl -L https://github.com/microsoft/AttackSurfaceAnalyzer/releases/download/v2.0.154%2B303aa9fef5/AsaCli-linux-2.0.154.tar.gz -o asa.tgz
tar xvf asa.tgz
cd AsaCli-linux-2.0.154
./AsaLaunch.sh collect -a