Gets the settings of a Git repository in Azure DevOps Services, using cmdlets from TfsCmdlets

Get-TfsGitRepositorySetting.ps1

<#
.SYNOPSIS
    Gets the settings of a Git repository.
#>
Function Get-TfsGitRepositorySetting {
    [CmdletBinding()]
    Param (
        # Specifies the name of the setting to retrieve. If not specified, all settings are returned.
        [Parameter(Position = 0)]
        [SupportsWildcards()]
        [string]$Setting = '*', 

        # Specifies the repository to retrieve the settings from. 
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [object]$Repository,

        # Specifies the name of the Team Project, its ID (a GUID), or a Microsoft.TeamFoundation.Core.WebApi.TeamProject object to connect to. When omitted, it defaults to the connection set by Connect-TfsTeamProject (if any). For more details, see the Get-TfsTeamProject cmdlet.
        [Parameter()]
        [object]$Project, 

        # Specifies the URL to the Team Project Collection or Azure DevOps Organization to connect to, a TfsTeamProjectCollection object (Windows PowerShell only), or a VssConnection object. You can also connect to an Azure DevOps Services organizations by simply providing its name instead of the full URL. For more details, see the Get-TfsTeamProjectCollection cmdlet. When omitted, it defaults to the connection set by Connect-TfsTeamProjectCollection (if any).
        [Parameter()]
        [object]$Collection 
    )

    Process {
        # Normalizes the repository object
        $Repository = Get-TfsGitRepository -Repository $Repository -Project $Project -Collection $Collection

        # Extracts the repository id and the project name
        $repoId = $Repository.id
        $project = $Repository.TeamProject

        # Gets the repository settings
        $settings = Invoke-TfsRestApi "$project/_api/_versioncontrol/RepositoryOptions?__v=5&repositoryId=$repoId" 

        # Returns the settings that match the specified setting name
        $ret = @{}
        $settings.__wrappedArray `
        | Where-Object key -like $Setting `
        | ForEach-Object { [PSCustomObject][Ordered]@{
                Project    = $project
                Repository = $Repository.Name
                Setting    = $_.key
                Value      = $_.value
            } }

        return $ret
    }
}