Forem: radlinskii

Shell command for cleaning up git repositories from unused branches

radlinskii — Fri, 04 Feb 2022 12:06:23 +0000

Hello,
In this short post I'd like to share with you a simple solution to the issue I'm encountering from time to time. The problem is that each of repositories I'm actively working on is aggregating a lot of branches, because in my workflow, I'm creating a new branch for each new task I'm working with. After merging branch to main, I want to keep the branch for a while just-in-case, but then, as one would expect, I forget to delete it. So after some time, when I run git branch I am getting more and more results. Actually, I've decided to do something about it when I saw that I have 61 local branches in one of my local repos.

The solution that came to my mind was to right a shell function and add it to my ~/.zshrc that would work as command that can remove all of the unused local branches automatically.

I've decided that this command should work in the opposite way to git branch --delete where you provide a list of branch names you want to delete. So instead, I want to provide the list of branches I want to keep.

After a thought that I'd need to add branch main or master each time I'd run this command, I've decided to always add them to the list of branch names that should not be deleted.

Another improvement I've decided to add was to always keep the current branch. Just in case I've decided to clean up all the branches but forgot that I'm already not on the main branch.

In my case, I've added it to a file called ~/.custom_aliases that I keep developing for improving productivity and is "imported" inside my ~/.zshrc.

Here's the code for it:

So if you ran git branch and see something like 👇:

and then you run 👇:

You will end up with clean repo with just the main branch, current branch, and the branches you explicitly provided not being deleted:

And all that with just a single command. :not_bad:

That's it from me, thanks for reading. I encourage you to leave a like/comment here or star/comment on github. See you! 👋

Git Hooks in action

radlinskii — Sun, 27 Jan 2019 18:02:30 +0000

Hi all,

I wanted to share with you an article about writing git hooks I wrote on medium some time ago.

Here's the link --> https://medium.com/@radlinskii/writing-the-pre-commit-git-hook-for-go-files

Happy Hacktoberfest 2018!

radlinskii — Sun, 30 Sep 2018 18:15:36 +0000

Hello everyone,

as Hacktoberfest 2018 is about to get started, I wanted to share with you my side project. I've created a web app called OctoBoard, that can help us find open GitHub issues during the Hacktoberfest. Using its filters we can easily find issues with specific labels (e.g. "hacktoberfest"), language and organization. We can also filter out issues that got assigned to someone or are already commented.
It's really easy to work with so I encourage you to give it a try.

Here is the deployed app, and here is its repository.

Happy Coding!

Writing a pre-commit git hook for Go files.

radlinskii — Thu, 27 Sep 2018 16:42:05 +0000

Hello,

I've just published an article on medium, on how to write a pre-commit git hook for files written in the Go programming language.

Click here to read it.

Thanks.

How to test methods in Go

radlinskii — Tue, 11 Sep 2018 21:31:31 +0000

Hello, last week I've started learning Golang. Following the Tour of Go I've implemented a function to calculate square root of a given float64 number.

import "fmt"

type ErrNegativeSqrt float64

func (e ErrNegativeSqrt) Error() string {
    return fmt.Sprintf("cannot Sqrt negative number: %g\n", float64(e))
}

// Sqrt calculates the square root of a number.
// If given negative number it returns an error.
func Sqrt(x float64) (float64, error) {
    if x < 0 {
        return 0, ErrNegativeSqrt(x)
    } else {
        z := float64(x)
        for i := 0; i < 100; i++ {
            z -= (z*z - x) / (2 * z)
        }
        return z, nil
    }
}

To test if it's working as expected I've wrote this test:


import (
    "math"
    "testing"
)

func TestSqrt(t *testing.T) {
    var tests = map[float64]float64{
        3:  math.Sqrt(3),
        2:  math.Sqrt(2),
        1:  math.Sqrt(1),
        0:  math.Sqrt(0),
        4:  math.Sqrt(4),
        5:  math.Sqrt(5),
        -5: 0,
        -1: 0,
    }
    precision := 0.00000001

    for key, expectedVal := range tests {
        val, _ := Sqrt(key)
        if val < expectedVal-precision || val > expectedVal+precision {
            t.Error(
                "For", key,
                "expected", expectedVal,
                "got", val,
            )
        }
    }
}

My question is How do I write a test for the Error method of ErrNegativeSqrt type which I wrote so that ErrNegativeSqrt can implement the error interface?

Thanks in advance. ❤️

PS. This is my first dev.to post! 🙌

PPS. Feel free to checkout my repo

radlinskii / go-playground

Repository created to have fun with Golang.

go-playground

Repository created to have fun with Golang.

View on GitHub