function remove-folder($path) {
    remove-item $path -Recurse -Force -ErrorAction SilentlyContinue | out-null
}

function generate-from-template($templatePath, $destinationPath, $templateSubstitutions) {
    foreach($templateSubstitution in $templateSubstitutions.GetEnumerator()) {
        Set-Variable -Name ($templateSubstitution.Name) -Value ($templateSubstitution.Value)
    }

    [System.IO.File]::WriteAllText(
        $destinationPath,
        $ExecutionContext.InvokeCommand.ExpandString([IO.File]::ReadAllText($templatePath)),
        [System.Text.Encoding]::UTF8)
}

function argrest($arguments, $index) {
    if ($index -ge $arguments.Length) {
        return "";
    }
    return $arguments[$index..($arguments.Length-1)] -join " "
}

function info($text) {
    Write-Host
    Write-Host $text -fore CYAN
    Write-Host
}

function error($text) {
    Write-Host
    Write-Host $text -fore RED
    Write-Host
}

function exec($command, $path) {
    if ($null -eq $path) {
        $global:lastexitcode = 0
        & $command
    } else {
        Push-Location $path
        $global:lastexitcode = 0
        & $command
        Pop-Location
    }

    if ($lastexitcode -ne 0) {
        throw "Error executing command: $command"
    }
}

function run-self-async {
    [string[]] $arguments = @("-File", ".\go.ps1") + ($args | % {'"' + $_ + '"'})

    Start-Process powershell -ArgumentList $arguments
}

function main($mainBlock) {
    try {
        &$mainBlock
        exit 0
    } catch [Exception] {
        write-host
        write-host $_.Exception.Message -fore DARKRED
        exit 1
    }
}