How to fork a GitHub repository and contribute to an open source project

I enjoying maintaining open source GitHub repositories such as dbachecks and ADSNotebook. I absolutely love it when people add more functionality to them.

To collaborate with a repository in GitHub you need to follow these steps

  • Fork the repository into your own GitHub
  • Clone the repository to your local machine
  • Create a new branch for your changes
  • Make some changes and commit them with useful messages
  • Push the changes to your repository
  • Create a Pull Request from your repository back to the original one

You will need to have git.exe available which you can download and install from https://git-scm.com/downloads if required

Fork the repository into your own GitHub

A fork is a copy of the original repository. This allows you to make changes without affecting the original project. It does not get updated when the original project gets updated (We will talk about that in the next post) This enables you to code a new feature or a bug fix, test it locally and make sure it is working.

Let’s take dbachecks as our example. Start by going to the project in GiHub. In this case the URL is https://github.com/sqlcollaborative/dbachecks You will see a Fork button at the top right of the page

When you click the button the repository is copied into your own GitHub account

The page will open at https://github.com/YOURGITHUBUSERNAME/NameOfRepository in this case https://github.com/SQLDBAWithABeard/dbachecks You will be able to see that it is a fork of the original repository at the top of the page

Clone the repository to your local machine

Forking the repository has created a remote repository stored on the GitHub servers. Now that the repository has been forked you need to clone it to your local machine to create a local repository so that you can start coding your amazing fix. When you have finished you can then sync it back to your remote repository ready for a Pull Request back to the original repository.

In your browser, at your remote repository that you just created (https://github.com/YOURGITHUBUSERNAME/NameOfRepository if you have closed the page) click on Clone or Download and then the icon to the right to copy the url

You can clone your repository in VS Code or Azure Data Studio by clicking F1 or CTRL + SHIFT + P in Windows or Linux and โ‡งโŒ˜P or F1 on a Mac

then start typing clone until you see Git:Clone and press enter or click

Paste in the URL that you just copied and click enter. A dialog will open asking you to select a folder. This is the parent directory where your local repository will be created. The clone will create a directory for your repository so you do not need to. I suggest that you use a folder called GitHub or something similar to place all of the repositories that you are going to clone and create.

When it has finished it will ask you if you wish to open the repository

if you click Open it will close anything that you have already got opened and open the folder. If you click Add to Workspace it will add the folder to the workspace and leave everything you already had open as it was and surprisingly clicking Open in New Window will open the folder in a new instance of Visual Studio Code or Azure Data Studio!

and you will also be able to see the local repository files on your computer

You can clone the repository at the command line if you wish by navigating to your local GitHub directory and running git clone TheURLYouCopied

Now your local repository has been created, it’s time to do your magic coding.

Create a new branch for your changes

It is a good idea to create a branch for your amazing new feature This enables you to work on coding for that feature in isolation. It has the added advantage that if you mess it right royally up, you can just delete that branch and start again with a new one!

To create a branch in VS Code or Azure Data Studio you can click on the branch name at the bottom left.

Or open the Command Palette and type Branch until you see Git: Create Branch

You will be prompted for a branch name

I like to choose a name that relates to the code that I am writing like configurable_engine or removeerroringexample You can see the name of the branch in the bottom left so that you always know which branch you are working on.

The icon shows that the branch is only local and hasn’t been pushed (published) to the remote repository yet

Make some changes and commit them with useful messages

Now you can start writing your code for your awesome new feature, bug fix or maybe just documentation improvement. Keep your commits small and give them useful commit messages that explain why you have made the change as the diff tooling will be able to show what change you have made

Write your code or change the documentation, save the file and in Visual Studio Code or Azure Data Studio you will see that the source control icon has a number on it

Clicking on the icon will show the files that have changes ready

You can write your commit message in the box and click CTRL + ENTER to commit your changes with a message

If you want to do this at the command line, you can use git status to see which files have changes

You will need to git add .or git add .\pathtofile to stage your changes ready for committing and then git commit -m 'Commit Message' to commit them

Notice that I did exactly what I just said not to do! A better commit message would have been So that people can find the guide to forking and creating a PR

Push the changes to your repository

You only have the changes that you have made in your local repository on your computer. Now you need to push those changes to Github your remote repository. You can click on the publish icon

You will get a pop-up asking you if you wish to stage your changes. I click Yes and never Always so that I can use this prompt as a sanity check that I am doing the right thing

At the command line you can push the branch, if you do that, you will have to tell git where the branch needs to go. If you just type git push it will helpfully tell you

fatal: The current branch AwesomeNewFeature has no upstream branch.
To push the current branch and set the remote as upstream, use

    git push --set-upstream origin AwesomeNewFeature

So you will need to use that command

You can see in the bottom left that the icon has changed

and if you read the output of the git push command you will see what the next step is also.

Create a Pull Request from your repository back to the original one

You can CTRL click the link in the git push output if you have pushed from the command line or if you visit either you repository or the original repository in your browser you will see that there is a Compare and Pull Request button

You click that and let GitHub do its magic

and it will create a Pull Request for you ready for you to fill in the required information, ask for reviewers and other options. Once you have done that you can click Create pull request and wait for the project maintainer to review it and (hopefully) accept it into their project

You can find the Pull Request that I created here https://github.com/sqlcollaborative/dbachecks/pull/720 and see how the rest of this blog post was created.

If you make more changes to the code in the same branch in your local repository and push them, they will automatically be added to this Pull Request whilst it is open. You can do this if the maintainer or reviewer asks for changes.

Shane has asked for a change

So I can go to my local repository in Azure Data Studio and make the requested change and save the file. If I look in the source control in Azure Data Studio I can again see there is a change waiting to be committed and if I click on the name of the file I can open the diff tool to see what the change was

Once I am happy with my change I can commit it again in the same way as before either in the editor or at the command line. The icon at the bottom will change to show that I have one commit in my local repository waiting to be pushed

To do the same thing at the command line I can type git status and see the same thing.

I can then push my change to my remote repository either in the GUI or by using git push

and it will automatically be added to the Pull Request as you can see

Now that the required changes for the review have been made, the review has been approved by Shane and the pull request is now ready to be merged. (You can also see that dbachecks runs some checks against the code when a Pull Request is made)

Many, many thanks to Shane b | t who helped with the writing of this post even whilst on a “no tech” holiday.

Go Ahead – Contribute to an Open Source Project

Hopefully you can now see how easy it is to create a fork of a GitHub repository, clone it to your own machine and contribute. There are many open source projects that you can contribute to.

You can use this process to contribute to the Microsoft Docs for example by clicking on the edit button on any page.

You can contribute other open source projects like

or go and find the the ones that you use and can help with.

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Fixing the ‘Failed to generate the compressed file for module ‘C:\Program Files\dotnet\dotnet.exe’ error when deploying to the PowerShell Gallery using Azure DevOps

The PowerShell module for validating your SQL Server estate dbachecks is deployed via Azure DevOps, you can see how it is working (or not) via this link

Grrr Automation for the Lose!

Until recently, this had worked successfully. In the last few weeks I have been receiving errors

 Exception : Microsoft.PowerShell.Commands.WriteErrorException: Failed to generate the compressed file for module 'C:\Program Files\dotnet\dotnet.exe failed to pack: error 
 C:\Program Files\dotnet\sdk\3.0.100\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(198,5): error : 
2 Index was outside the bounds of the array. 
 [C:\Users\VssAdministrator\AppData\Local\Temp\cbc14ba6-5832-46fd-be89-04bb552a83ac\Temp.csproj]
'.
At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\2.2.1\PSModule.psm1:10944 char:17
20       Publish-PSArtifactUtility @PublishPSArtifactUtility_Param ...
              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidOperation: (:) [Write-Error], WriteErrorException
2019-11-25T22:44:46.8459493Z     + FullyQualifiedErrorId : FailedToCreateCompressedModule,Publish-PSArtifactUtility

You can see these errors in the release pipeline logs here

Confusion

This was very frustrating as it was stopping the continuous delivery to the PowerShell Gallery. It was even more confusing as I was successfully deploying the ADSNotebook module to the gallery using the same method as you can see here.

Raise an Issue on GitHub

I went and looked at the PowerShellGet GitHub repository and opened an issue I also found another issue regarding Required Modules

But this doesnt help to get dbachecks released.

Just Try to Make it Work

I asked the wonderful folk in the PowerShell Slack channel – Through the magic of automation, you can also interact with them via the powershellhelp channel in the SQL Server Slack as well but there were no answers that could assist.

So I had to go searching for an answer. PowerShellGet uses nuget for package management. I found that if I downloaded an earlier version and placed it in my user profile (in the right location) I could publish the module.

I found this out by removing the nuget.exe from anywhere useful on the machine and trying to publish the module. The error message says

NuGet.exe upgrade is required to continue
This version of PowerShellGet requires minimum version '4.1.0' of NuGet.exe to publish an item to the NuGet-based repositories. NuGet.exe must be available in 
'C:\ProgramData\Microsoft\Windows\PowerShell\PowerShellGet\' or 'C:\Users\BeardyMcBeardFace\AppData\Local\Microsoft\Windows\PowerShell\PowerShellGet\', or under 
one of the paths specified in PATH environment variable value. NuGet.exe can be downloaded from https://aka.ms/psget-nugetexe. For more information, see 
https://aka.ms/installing-powershellget . Do you want PowerShellGet to upgrade to the latest version of NuGet.exe now?

If I said yes then I got the latest version and the error continued.

However, on my laptop I can go to the nuget downloads page and download an earlier version and place it in one of those paths then I could publish the module.

Can I Automate it?

I would rather not have to deploy manually though, and as I use hosted agents my access to the operating system is limited so I wondered if I could place the nuget.exe in the user profile and it would get used or if it would look for the the latest one. Turns out it uses the one in the user profile ๐Ÿ™‚

So now I have this code as a step in my Azure DevOps Release pipeline before calling Publish-Module and we have automated the releases again.

and now deployments to the PowerShell Gallery are just triggered by the build and the pipeline is green again ๐Ÿ™‚

Create a PowerShell Notebook for Azure Data Studio with PowerShell

The latest update to the ADSNotebook PowerShell module I blogged about here now enables the creation of PowerShell notebooks with PowerShell.

You can install the module with

Install-Module ADSNotebook

or if you have already installed it you can use

Update-Module ADSNotebook

In the latest release, there is an extra parameter for New-AdsWorkBook of -Type which will accept either SQL or PowerShell

Create a PowerShell Notebook with PowerShell Rob

OK!

Here is some code to create a PowerShell Notebook. First we will create some cells using New-AdsWorkBookCell including all the markdown to add images and links. You can find my notebooks which explain how to write the markdown for your notebooks in my GitHub Presentations Repository

$introCelltext = "# Welcome to my Auto Generated PowerShell Notebook

## dbatools
![image](https://user-images.githubusercontent.com/6729780/68845538-7afcd200-06c3-11ea-952e-e4fe72a68fc8.png)  

dbatools is an open-source PowerShell Module for administering SQL Servers.
You can read more about dbatools and find the documentation at [dbatools.io](dbatools.io)
"
$SecondCelltext = "### Installation
You can install dbatools from the PowerShell Gallery using `Install-Module dbatools`
"

$thirdcelltext = "Install-Module dbatools"

$fourthCelltext = "### Getting Help
You should always use `Get-Help` to fins out how to use dbatools (and any PowerShell) commands"

$fifthcelltext = "Get-Help Get-DbaDatabase"
$sixthCelltext = "Try a command now. get the name, owner and collation of the user databases on the local instance"
$seventhCellText = "Get-DbaDatabase -SqlInstance localhost -ExcludeSystem | Select Name, Owner, Collation"

$Intro = New-ADSWorkBookCell -Type Text -Text $introCelltext
$second = New-ADSWorkBookCell -Type Text -Text $SecondCelltext
$third = New-ADSWorkBookCell -Type Code -Text $thirdcelltext
$fourth = New-ADSWorkBookCell -Type Text -Text $fourthCelltext
$fifth = New-ADSWorkBookCell -Type Code -Text $fifthcelltext
$sixth = New-ADSWorkBookCell -Type Text -Text $sixthCelltext
$seventh = New-ADSWorkBookCell -Type Code -Text $seventhCellText

Then we will create a new workbook using those cells

$path = 'C:\temp\dbatools.ipynb'
New-ADSWorkBook -Path $path -cells $Intro,$second,$third,$fourth,$fifth,$sixth,$Seventh -Type PowerShell

Then, when that code is run we can open the Notebook and ta-da

And it is super quick to run as well

UPDATE – Tyler Leonhardt t from the PowerShell team asked

Challenge accepted, with extra meta, here is the PowerShell to create a PowerShell Notebook which will create a PowerShell Notebook!!

Create Azure Data Studio SQL Notebooks with PowerShell

At PASS Summit today I gave a presentation about SQL Notebooks in Azure Data Studio for the DBA. I demo’d the PowerShell module ADSSQLNotebook.

which you can also find on GitHub (where I will be glad to take PR’s to improve it ๐Ÿ™‚ )

This module has 3 functions

This module contains only 3 commands at present

  • Convert-ADSPowerShellForMarkdown

This will create the markdown link for embedding PowerShell code in a Text Cell for a SQL Notebook as described in this blog post

  • New-ADSWorkBookCell

This command will create a workbook text cell or a code cell for adding to the New-ADSWorkBook command

  • New-ADSWorkBook

This will create a new SQL Notebook using the cell objects created by New-ADSWorkBookCell

Usage

Convert-ADSPowerShellForMarkdown

Convert-ADSPowerShellForMarkdown -InputText "Get-ChildItem" -LinkText 'This will list the files' -ToClipBoard

Converts the PowerShell so that it works with MarkDown and sets it to the clipboard for pasting into a workbook cell

New-ADSWorkBookCell

$introCelltext = "# Welcome to my Auto Generated Notebook

## Automation
Using this we can automate the creation of notebooks for our use
"
$Intro = New-ADSWorkBookCell -Type Text -Text $introCelltext

Creates an Azure Data Studio Text cell and sets it to a variable for passing to  New-AdsWorkBook

New-ADSWorkBook

$introCelltext = "# Welcome to my Auto     Generated Notebook

## Automation
Using this we can automate the creation of notebooks for our use
"
$SecondCelltext = "## Running code
The next cell will have some code in it for running

## Server Principals
Below is the code to run against your     instance to find the server principals that are enabled"

$thirdcelltext = "SELECT Name
FROM sys.server_principals
WHERE is_disabled = 0"
$Intro = New-ADSWorkBookCell -Type Text -Text $introCelltext
$second = New-ADSWorkBookCell -Type Text  -Text $SecondCelltext
$third = New-ADSWorkBookCell -Type Code -Text $thirdcelltext

$path = 'C:\temp\AutoGenerated.ipynb'
New-ADSWorkBook -Path $path -cells $Intro,$second,$third

Creates 3 cells with New-AdsWorkBookCells to add to the workbook,
two text ones and a code one, then creates a SQL Notebook with
those cells and saves it as     C:\temp\AutoGenerated.ipynb

Installation

You can install this Module from the PowerShell Gallery using

Install-Module ADSNotebook

Compatability

This module has been tested on Windows PowerShell 5.1, PowerShell Core 6 and PowerShell 7 on Windows 10 and Ubuntu

Demo