function Merge-ModuleRoot {
    <#
    .SYNOPSIS
        Merges single ps1 files into one module script file.

    .DESCRIPTION
        This Cmdlet is used in build pipeline to reduce the file load and import performance to the target module.

    .INPUTS
        [None] No pipeline input.

    .OUTPUTS
        [None] No pipeline output.

    .EXAMPLE
        Import-Module -Name DroneHelper; Merge-ModuleRoot
    #>
    [CmdletBinding()]
    param ()

    process {
        $Repo = Get-RepoPath

        $srcFiles = Get-ChildItem -Path $Repo.Src.Path -Recurse -File |  Where-Object {
            ($_.Name -notmatch '.Tests.') -and ($_.Name -match '.ps1') -and ($_.Name -notmatch '.ps1xml')
        }
        $Output = @()
        foreach ($psFile in $srcFiles) {
            $fileContent = Get-Content -Path $psFile.FullName -Raw -Encoding 'utf8'
            $Output += '# srcFile: {0}' -f $psFile.FullName
            $Output += $fileContent.TrimEnd()
            $Output += '{0}' -f [Environment]::NewLine
        }
        try {
            $Output | Out-File -FilePath $Repo.Bin.ScriptModuleName -Encoding 'utf8' -Force -ErrorAction Stop
        }
        catch {
            Write-FailureStateFile -StepName 'MergeModuleRoot'
            throw 'Could not write the final module root script file!'
        }
    }
}