jstangroome

#!/bin/bash
set -o errexit

# Assumes the latest version of Go is installed on the PATH.

# Finds all go.mod files under the current working directory and upgrades the
# Go modules to the latest version of Go and upgrades all their Go dependencies
# too.

# Then finds the Dockerfile in the go.mod file's parent directory and updates

jstangroome

Rather that trying to safely synchronize files between branches, including hidden files, avoiding the .git dir, and removing excess files, it is possible to ask git to create a new commit that represents the exact file set of another commit.

This is based on the concept that git commits are just a pointer to a tree object representing the state of all the files in the repository at the moment of the commit. Instead of creating a new commit based on our git workspace, we create a commit based on the tree from another commit.

# find the tree ID of the source commit
git cat-file -p ${source_commit} | grep tree

jstangroome

func getPodNamespace() string {
	const namespaceEnvVar = "POD_NAMESPACE"
	const namespaceFile = "/var/run/secrets/kubernetes.io/serviceaccount/namespace"
	namespaceName := os.Getenv(namespaceEnvVar)
	if namespaceName != "" {
		return namespaceName
	}
	namespaceNameBytes, err := os.ReadFile(namespaceFile)
	if err != nil {
		log.Printf("[ERROR] '%s' environment variable not specified and could not read file '%s': '%#v'",

jstangroome

package main

import (
	"crypto/hmac"
	"crypto/sha256"
	"encoding/binary"
	"encoding/hex"
	"flag"
	"fmt"
	"log"

jstangroome

import (
	"io"
	"regexp"

	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

// Replaces hashicorp/logutils by directing Golang's log package to Zap but
// extracting the log level from any `[$severity]` pattern in the message.

jstangroome

param (
  [int]$drag = 4
)

# https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-systemparametersinfoa
$importDefinition= @'
[DllImport("user32.dll", EntryPoint = "SystemParametersInfo")]
public static extern bool SystemParametersInfo(uint uiAction, uint uiParam, uint pvParam, uint fWinIni);
'@
$importType = Add-Type -MemberDefinition $importDefinition -Name WinAPICall -Namespace SetDragSystemParametersInfo –PassThru

jstangroome

#!/bin/bash

cat <<'EOF' >.dockerfile.content-tag
FROM busybox:1
WORKDIR /src/
ENTRYPOINT ["/bin/sh", "-c", "find . -type f \\! -path ./.dockerfile.content-tag -exec sha256sum -b {} +"]
COPY . /src/
EOF

iid=$( docker image build -q -f .dockerfile.content-tag . )

jstangroome

#!/bin/bash

print_usage () {
  printf 'Usage: kubectl evict -n <namespace> <pod>\n' >&2
}

main () {
  if [ "-n" != "$1" ] && [ "--namespace" != "$1" ]
  then
    print_usage

jstangroome

apt-get install -y \
  apt-transport-https \
  binutils \
  build-essential \
  python-pip \
  socat \
  sysstat \
  traceroute \
  unzip \
  zip

jstangroome

#!/bin/bash

while read -r commit_hash
do
  message=$(
    git cat-file commit "${commit_hash}" |
      sed '1,/^$/d'
  )

  if [ "${message:0:5}" = 'Merge' ] || [ "${message:0:6}" = 'Revert' ]