gabrieljones’s gists

gabrieljones / full page adapt grafana.js

Created August 31, 2025 16:14

Grafana v8.5.27 css tweaks to make grabbing full page screenshots possible

	document.querySelector('main > div > div > div').style.overflow = 'visible';
	document.querySelector('main > div > div > div > div.scrollbar-view').style.overflow = 'visible';

gabrieljones / heap_dump.sh

Last active March 21, 2025 20:08

java heap dump of a java process running in a container without a shell

	docker run --pid container:<target-docker-container-name> \
	--network container:<target-docker-container-name> \
	--rm \
	--entrypoint "/opt/java/openjdk/bin/jcmd" \
	--user 65532:65532 \
	dockerproxy.aexp.com/eclipse-temurin:17 1 GC.heap_dump <some directory the target process can write to>/heap.hprof

	# jcmd is not writing the file, it is merely sending a request to the target process to write the heap dump, the target process needs read write perms the file argument: <some directory the target process can write to>/heap.hprof

	# 65532 is the user id of distroless/java :nonroot images

gabrieljones / NullCommit.sh

Last active March 18, 2025 15:02

	# GitHub does not let you push orphan branches. This is the next closest thing. (Null Commit, Empty Commit, Zero Commit)

	git config user.name "_"
	git config user.email ""
	git switch --orphan empty-branch
	GIT_AUTHOR_DATE="1970-01-01 00:00:00 +0000" GIT_COMMITTER_DATE="1970-01-01 00:00:00 +0000" git commit --allow-empty --allow-empty-message -m ""

gabrieljones / deepseek fibonacci Scala.txt

Created February 10, 2025 15:46

	❯ ollama run deepseek-r1:32b
	>>> fibonacci sequence in Scala using LazyList.zip
	<think>
	Okay, so I need to figure out how to generate the Fibonacci sequence in Scala using LazyList.zip. Hmm, let me
	start by recalling what a Fibonacci sequence is. It's a series where each number is the sum of the two preceding
	ones, usually starting with 0 and 1.

	Now, I remember that in Scala, LazyList is similar to streams and allows for lazy evaluation, which is good for
	infinite sequences because it doesn't compute all elements upfront. So using LazyList makes sense here since the
	Fibonacci sequence can be infinitely long.

gabrieljones / ExiSet.scala

Created August 12, 2024 18:03

	package com.gabrieljones

	/**
	* Represents a set of elements that may or may not exist
	* @tparam T the type of the elements in the set
	*/
	sealed trait ExiSet[T] {
	def exists(p: T => Boolean): Boolean
	}

gabrieljones / fibonacci.kt

Created January 18, 2024 15:05

multiple ways to compute the fiboonacci sequence

	package gabrieljones

	import com.google.common.math.BigIntegerMath
	import java.math.BigDecimal
	import java.math.BigInteger
	import java.math.MathContext
	import java.math.RoundingMode
	import kotlin.coroutines.cancellation.CancellationException

	fun main() {

gabrieljones / runCatchingNonFatal.kt

Last active January 18, 2024 15:00

runCatching that does not catch Fatal throwables and does not catch CancellationException


	inline fun <R> runCatchingNonFatal(block: () -> R): Result<R> {
	return try {
	Result.success(block())
	}
	catch (t: Throwable) {
	when (t) {
	// VirtualMachineError includes OutOfMemoryError and other fatal errors
	is VirtualMachineError, is ThreadDeath, is InterruptedException, is LinkageError, is CancellationException -> throw t
	else -> Result.failure(t)

gabrieljones / AllLogicInShutdownHook.scala

Created October 17, 2023 15:52

	package com.gabrieljones

	import java.util.concurrent.{Executors, ScheduledFuture}
	import scala.sys.ShutdownHookThread

	object AllLogicInShutdownHook {
	def main(args: Array[String]): Unit = {
	// schedule executor

	println("Adding Hook...")

gabrieljones / NestedFinally.scala

Created October 17, 2023 15:50

	package com.gabrieljones

	import scala.collection.mutable.ListBuffer

	object NestedFinally {
	def main(args: Array[String]): Unit = {
	val es: ListBuffer[Exception] = ListBuffer.empty
	try {
	try {
	throw new Exception("1")

gabrieljones / listcerts.sh

Created January 23, 2023 18:56

list the certs of cacerts in a distroless java based container image with the keytool inside the image

docker run --rm --entrypoint="/usr/lib/jvm/java-17-openjdk-amd64/bin/keytool" distroless/java17:nonroot -list -cacerts -storepass changeit

Gabriel Jones gabrieljones