KubePrompt.psm1
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#Region '.\Private\KubeInfo.ps1' 0 Set-StrictMode -Version 2 function Test-KubeBinary { try { [bool](Get-Command -Name 'kubectl') } catch { $PSCmdlet.ThrowTerminatingError($_) } } function Get-KubeContext { try { kubectl config current-context } catch { $PSCmdlet.ThrowTerminatingError($_) } } function Get-KubeNamespace { try { $namespace = kubectl config view --minify --output 'jsonpath={..namespace}' if (-not $namespace) { $namespace = "default" } $namespace } catch { $PSCmdlet.ThrowTerminatingError($_) } } #EndRegion '.\Private\KubeInfo.ps1' 34 #Region '.\Private\Prompt.ps1' 0 function Write-ToHost { param( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] $Text, [Parameter()] [ValidateNotNullOrEmpty()] $ForegroundColor ) try { $params = @{ Object = $Text NoNewLine = $true } if ($PSBoundParameters.ContainsKey('ForegroundColor')) { $params.ForegroundColor = $ForegroundColor } Write-Host @params } catch { $PSCmdlet.ThrowTerminatingError($_) } } #EndRegion '.\Private\Prompt.ps1' 27 #Region '.\Private\PromptOverride.ps1' 0 # Original idea copied from https://github.com/dahlbyk/posh-git function Get-DefaultPrompt { # Get the default prompt definition. $initialSessionState = [Runspace]::DefaultRunspace.InitialSessionState if (!$initialSessionState.Commands -or !$initialSessionState.Commands['prompt']) { "`$(if (test-path variable:/PSDebugContext) { '[DBG]: ' } else { '' }) + 'PS ' + `$(Get-Location) + `$(if (`$nestedpromptlevel -ge 1) { '>>' }) + '> '" } else { $initialSessionState.Commands['prompt'].Definition } } function Install-PromptOverrideIfDefault { $defaultPromptDef = Get-DefaultPrompt $currentPromptDef = if ($funcInfo = Get-Command prompt -ErrorAction SilentlyContinue) { $funcInfo.Definition } if (-not $currentPromptDef) { # HACK: If prompt is missing, create a global one we can overwrite with Set-Item function global:prompt { ' ' } } # If there is no prompt function or the prompt function is the default, replace the current prompt function definition if (-not $currentPromptDef -or ($currentPromptDef -eq $defaultPromptDef)) { # Set the posh-git prompt as the default prompt Set-Item Function:\prompt -Value { Write-KubePrompt return "> " } } } #EndRegion '.\Private\PromptOverride.ps1' 32 #Region '.\Public\Write-KubePrompt.ps1' 0 function Write-KubePrompt { <# .SYNOPSIS Write-KubePrompt cmdlet will add the current context and namespace in Kubernetes configured in `kubectl` to your PowerShell prompt. .DESCRIPTION In your `$Profile` file, import KubePrompt module and add to your prompt function a call to `Write-KubePrompt` ```powershell Import-Module -Name KubePrompt function prompt { Write-KubePrompt ... Rest of your prompt } ``` Write-KubePrompt cmldet supports two ways for customizations. Either by specifying a parameter in the `Write-KubePrompt` cmdlet invocation or through modification of the `KubePromptSettings` global variable. .PARAMETER ContextColor Sets the foreground color for the context string. Value can be either of [ConsoleColor] type or string .PARAMETER NamespaceColor Sets the foreground color for the namespace string. Value can be either of [ConsoleColor] type or string .PARAMETER Symbol Sets the string/unicode character to be used as kubernetes symbol .PARAMETER SymbolColor Sets the foreground color for the symbol .PARAMETER DisableSymbol If specified, removes the symbol from the generated prompt .EXAMPLE Write-KubePrompt -DisableSymbol Hides the k8s symbol from the prompt .EXAMPLE $global:KubePromptSettings.Symbol.Enabled = $false PS > Write-KubePrompt Hides the k8s symbol from the prompt by setting the global KubePromptSettings variable .EXAMPLE Write-KubePrompt -Symbol '*' Overrides the symbol value with a string .EXAMPLE $global:KubePromptSettings.Symbol.Value = '*' PS > Write-KubePrompt Overrides the symbol value through the global KubePromptSettings variable .EXAMPLE Write-KubePrompt -Symbol 0x1011 # infinity symbol Overrides the symbol value by passing a Unicode character .EXAMPLE Write-KubePrompt -ContextColor ([ConsoleColor]::Green) Overrides the context string foreground color using a `ConsoleColor` type .EXAMPLE $global:KubePromptSettings.ContextColor = 'Green' PS > Write-KubePrompt Overrides the context string foreground color using a string .EXAMPLE Write-KubePrompt -NamespaceColor ([ConsoleColor]::Yellow) Overrides the namespace string foreground color using a `ConsoleColor` type .EXAMPLE $global:KubePromptSettings.NamespaceColor = 'Yellow' PS > Write-KubePrompt Overrides the namespace string foreground color using a string #> [CmdletBinding(DefaultParameterSetName = 'Default')] param( [Parameter(ParameterSetName = 'Default')] [Parameter(ParameterSetName = 'EnableSymbol')] [ValidateNotNullOrEmpty()] $ContextColor, [Parameter(ParameterSetName = 'Default')] [Parameter(ParameterSetName = 'EnableSymbol')] [ValidateNotNullOrEmpty()] $NamespaceColor, [Parameter(ParameterSetName = 'EnableSymbol')] [ValidateNotNullOrEmpty()] $Symbol, [Parameter(ParameterSetName = 'EnableSymbol')] [ValidateNotNullOrEmpty()] $SymbolColor, [Parameter(ParameterSetName = 'DisableSymbol')] [switch] $DisableSymbol ) try { $settings = $KubePromptSettings $ctxColor = $settings.ContextColor $nsColor = $settings.NamespaceColor $symColor = $settings.SymbolColor $sym = $settings.Symbol.Value $noSymbol = -not $settings.Symbol.Enabled if ($ContextColor) { $ctxColor = $ContextColor } if ($NamespaceColor) { $nsColor = $NamespaceColor } if ($SymbolColor) { $symColor = $SymbolColor } if ($Symbol) { $sym = $Symbol } if ($DisableSymbol) { $noSymbol = $DisableSymbol } Write-ToHost -Text $settings.Prefix if (-not $noSymbol) { Write-ToHost -Text ("$([char]$sym) ") -ForegroundColor $symColor Write-ToHost -Text $settings.Separator } Write-ToHost -Text (Get-KubeContext) -ForegroundColor $ctxColor Write-ToHost -Text $settings.Divider Write-ToHost -Text (Get-KubeNamespace) -ForegroundColor $nsColor Write-ToHost -Text $settings.Suffix } catch { $PSCmdlet.ThrowTerminatingError($_) } } #EndRegion '.\Public\Write-KubePrompt.ps1' 160 #Region '.\Init\Init.ps1' 0 $global:KubePromptSettings = @{ SymbolColor = ([ConsoleColor]::DarkBlue) ContextColor = ([ConsoleColor]::DarkRed) NamespaceColor = ([ConsoleColor]::DarkCyan) Prefix = '[' Suffix = ']' Symbol = @{ Enabled = $true Value = 0x2388 } Divider = ':' Separator = '|' } Install-PromptOverrideIfDefault #EndRegion '.\Init\Init.ps1' 15 |