Bosun Egberinde bosunski

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

Problem

You have installed GPG, then tried to commit and suddenly you see this error message after it:

error: gpg failed to sign the data
fatal: failed to write commit object

Debug

GoLang `json.Unmarshal()` vs. PHP `json_decode()`

To evaluate if Go json.Unmarshal() is faster or slower than PHP json_decode() for arbitrary JSON I decided to run a quick benchmark on my 2015 MacBook Pro (Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz).

I used this ~25Mb JSON file and ran the attached two program under Go 1.22 and PHP 8.3.2, respectively.

My benchmarks were very unscientific but I was just looking for orders of magnitude.

Here are the results from three different runs, each:

	<?php
	/**
	* Copyright © EcomDev B.V. All rights reserved.
	* See LICENSE.txt for license details.
	*/

	declare(strict_types=1);

	$port = $argv[1];
	$serverName = $argv[2];

	# Stop and disable NGINX
	sudo systemctl stop nginx
	sudo systemctl disable nginx

	# Install Go
	wget https://go.dev/dl/go1.20.2.linux-amd64.tar.gz
	sudo rm -rf /usr/local/go
	sudo tar -C /usr/local -xzf go1.20.2.linux-amd64.tar.gz
	rm -f go1.20.2.linux-amd64.tar.gz

	<?php

	namespace App\Http\Controllers\Slack;

	use App\Slack\Webhook;
	use App\Http\Controllers\Controller;

	use Illuminate\Http\Request;
	use Illuminate\Support\Facades\Log;