geberl’s gists

geberl / script.go

Created July 12, 2023 07:26

Go scripting, chmod +x script.go

	///usr/bin/env go run "$0" "$@"; exit
	package main

	import "fmt"

	func main() {
	fmt.Println("My first Go script")
	}

geberl / traceroute.go

Created October 15, 2022 09:27

Traceroute a Hetzner Cloud Load Balancer before and after deletion in Go

	package main

	import (
	"fmt"
	"net"
	"os"
	"sync/atomic"

	"github.com/aeden/traceroute"
	)

geberl / parse_certs.go

Last active October 15, 2022 09:25

Parse certificate *.pem files, because some new parsing errors got added in Go 1.15 and what previously may have been parsed ok might not now.

	package main

	import (
	"crypto/x509"
	"encoding/pem"
	"fmt"
	"io/ioutil"
	"math"
	"os"
	"path/filepath"

geberl / example_oklog_run_group.go

Last active October 15, 2023 20:59

Example oklog/run group

	package main

	import (
	"context"
	"net/http"
	"os"
	"syscall"

	"github.com/go-kit/kit/log"
	"github.com/go-kit/kit/log/level"

geberl / .hammerspoon

Last active October 21, 2020 12:38

My Hammerspoon (https://github.com/Hammerspoon/hammerspoon) config file. Set up to help with window management on a DELL U3419W widescreen (3440x1440) monitor.

	-------------------------------------------------------------------------------
	-- ShiftIt / Spectacle style window manager
	-------------------------------------------------------------------------------
	-- Source/inspiration: https://github.com/fikovnik/ShiftIt/wiki/The-Hammerspoon-Alternative
	-- Docs hotkey module: https://www.hammerspoon.org/docs/hs.hotkey.html
	-- Docs keycodes: https://www.hammerspoon.org/docs/hs.keycodes.html#map

	hs.window.animationDuration = 0.1

	units = {

geberl / get_open_window_names.applescript

Created February 29, 2020 19:15

	tell application "System Events"
	set procs to processes
	set windowName to {}
	repeat with proc in procs
	# Ignore applications that are hidden altogether (cmd+H or via command from the application's menu)
	# Applications open on different desktops are ignored alltogether
	if (visible of proc) then
	if exists (window 1 of proc) then
	repeat with w in windows of proc
	# Ignore application windows miniaturezed to the dock

geberl / check_filetype.swift

Created February 29, 2020 19:12

Get the file type from NsDraggingInfo's draggingPasteboard

	func checkFileType(sender: NSDraggingInfo) -> Bool {
	let pasteboard = sender.draggingPasteboard()

	// Iterate over accepted types of currently selected Workflow in its order of preference
	// Return as soon as a present type of the dropped item matches an accepted type of the Workflow
	for acceptedType in Workflows.activeAccepts {

	if String(acceptedType) == "filename" {
	if pasteboard.types?.contains("public.file-url") == true {
	// File URLs from Finder (files, folders, drives)

geberl / safe_unwrap.go

Last active December 22, 2019 10:13

Pointers vs literals & Swift-style safe unwrapping

	package main

	import "fmt"

	type person struct {
	firstName string
	lastName *string

	addressAsValue address
	addressAsPointer *address

geberl / inotify_watcher.sh

Last active November 29, 2019 11:36

Watch Envoy's config files and use the required mv command to trigger a reload

	#!/bin/bash

	# Install the inotify tools in Dockerfile:
	# RUN apt-get update && apt-get install -y inotify-tools

	# Then establish the watch in the Docker entrypoint.sh:
	# ./inotify_watcher.sh &

	inotifywait --monitor "/etc/envoy/k8s/" --event create --event modify --event moved_to \|
	while read path action file; do

geberl / file_path_build_vs_run.go

Created October 28, 2019 07:43

Reliably access a file that resides next to the code/binary, whether it's started via go run or go build

	package main

	import (
	"fmt"
	"os"

	log "github.com/sirupsen/logrus"
	)

	func main() {

Günther Eberl geberl