When I first heard about git bisect I thought it sounded scary and complicated, so I never looked for an opportunity to learn more about it and use it. That's until last week when I ran into a bug in our master branch. I knew that the bug was not there two days before so … Continue reading Find the commit that introduced a bug in your code: how to use git bisect in 7 steps
I don't write much about Rails here but whoa, two posts in a row! Well, it turns out that I thought I should record another lesson I learned while upgrading Rails: how to do it, meaning, what are the practical steps one should take to upgrade Rails? During my research at work I came across … Continue reading How to upgrade Rails
I was recently tasked with upgrading our Ruby on Rails application at work: my goal was to move two major versions up, with a middle step on a minor version (and a server OS upgrade that was not even planned!). This was an incredible experience and I learned a lot from it. Here are some … Continue reading 6 Lessons learned from upgrading a Rails app
Book cover of "Get Programming with Go", by Nathan Youngman and Roger Peppe Learning Go (a.k.a as Golang) was one of my personal goals for 2019 and I chose the book "Get Programming with Go", by Nathan Youngman and Roger Peppe as my learning resource. Even though there are several other resources out there, I … Continue reading Book review: Get Programming with Go
You want to see line 3842 of file called my_super_long_file.py and you can only access that file using vim. You open the file and to your dismay, by default, vim doesn't display line numbers. Here are your options: Arrow down and hope you find that line before retirementDisplay the line numbers by hitting : and … Continue reading Go to line number in a file using vim
When I need to create a new custom Docker image, I usually start with a base image (alpine, debian, python, etc, depending on the project), running it in the interactive mode and install the tools and dependencies I will need. Once I get my container the way I want, I create a Dockerfile with all … Continue reading TIL: docker commit
For a text like the following: This is the line I want to move. This line should be the first line. In order to move the first line down, in normal mode* (not edit or insert mode), follow these steps: place the cursor at the beginning of the line you want to move - in … Continue reading TIL: How to move a line in Vim
Only two steps required (it assumes an existing account in AWS console): Create a Lambda function in AWSDeploy your Lambda function with AWS API Gateway I used these two articles as a reference: Going Serverless: how to run your first AWS Lambda function in the cloudWorking with Amazon API Gateway Important notes the lambda function … Continue reading TIL: Create and deploy a serverless function in AWS
I recently committed an API key to a repository and even worse, I pushed to GitHub before I realized my mistake... 😦 Removing the key from the code base wouldn't completely solve my problem since a commit diff would still display my secret key. The solution was to remove that commit from history. Removing commit … Continue reading Remove a commit from history in Git – local and remote
In a previous post I wrote a summary of the things I learned about gRPC. Here I will talk about the prototype app I wrote to test gRPC and gRPC-Web. About my prototype As I mentioned before, I wrote a prototype app that tests if the string that the user typed in the browser is … Continue reading Getting started with gRPC – part II: the code
