Use dotnet tool to find out if a specific tool is installed on an environment

dotnetToolInstallCheck.ps1

# Preface:
# dotnet tool install -g will return an error code when the tool is already installed in the system (at the same location)
# adding a test like below, will prevent the error
# this is mostly needed in a CI/CD environment where you don't want to break your pipeline if the tool was installed already.

# find if stryker is installed
$list = (dotnet tool list -g)

# echo the list
# $list

$strykerFound = ($list | Where-Object {$_.Split(' ')[0] -eq "dotnet-stryker"})

if ($null -ne $StrykerFound) {
  Write-Host "Installing Stryker"
  dotnet tool install dotnet-stryker -g
}
else {
  Write-Host "Stryker is already installed"
}

# stop powershell from reporting an error code
$global:LASTEXITCODE = 0

The thing is, if it is already installed, installing it again returns an error, which is not helpful in a CI/CD pipeline.
That's why I'm checking it first.

Added that reasoning to the gist. Thanks!

Yea 100% understood, I came from a similar problem and your blog post.

To be clear, I meant install it into a local path that is unique (e.g. created/destroyed by your CI/CD pipeline) each run, therefore avoiding all the additional check you're doing.