functions/ShowTree.ps1
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function Show-Tree { [CmdletBinding(DefaultParameterSetName = "Path")] [alias("pstree","shtree")] Param( [Parameter(Position = 0, ParameterSetName = "Path", ValueFromPipeline, ValueFromPipelineByPropertyName )] [ValidateNotNullOrEmpty()] [alias("FullName")] [string[]]$Path = ".", [Parameter(Position = 0, ParameterSetName = "LiteralPath", ValueFromPipelineByPropertyName )] [ValidateNotNullOrEmpty()] [string[]]$LiteralPath, [Parameter(Position = 1)] [ValidateRange(0, 2147483647)] [int]$Depth = [int]::MaxValue, [Parameter()] [ValidateRange(1, 100)] [int]$IndentSize = 3, [Parameter()] [alias("files")] [switch]$ShowItem, [Parameter(HelpMessage = "Display item properties. Use * to show all properties or specify a comma separated list.")] [alias("properties")] [string[]]$ShowProperty ) DynamicParam { #define the InColor parameter if the path is a FileSystem path if ($PSBoundParameters.containsKey("Path")) { $here = $psboundParameters["Path"] } elseif ($PSBoundParameters.containsKey("LiteralPath")) { $here = $psboundParameters["LiteralPath"] } else { $here = (Get-Location).path } if (((Get-Item -path $here).PSprovider.Name -eq 'FileSystem' )-OR ((Get-Item -literalpath $here).PSprovider.Name -eq 'FileSystem')) { #define a parameter attribute object $attributes = New-Object System.Management.Automation.ParameterAttribute $attributes.HelpMessage = "Show tree and item colorized." #add an alias $alias = [System.Management.Automation.AliasAttribute]::new("ansi") #define a collection for attributes $attributeCollection = New-Object -Type System.Collections.ObjectModel.Collection[System.Attribute] $attributeCollection.Add($attributes) $attributeCollection.Add($alias) #define the dynamic param $dynParam1 = New-Object -Type System.Management.Automation.RuntimeDefinedParameter("InColor", [Switch], $attributeCollection) #create array of dynamic parameters $paramDictionary = New-Object -Type System.Management.Automation.RuntimeDefinedParameterDictionary $paramDictionary.Add("InColor", $dynParam1) #use the array return $paramDictionary } } #DynamicParam Begin { Write-Verbose "Starting $($myinvocation.MyCommand)" if (-Not $Path -and $psCmdlet.ParameterSetName -eq "Path") { $Path = Get-Location } if ($PSBoundParameters.containskey("InColor")) { $Colorize = $True $script:top = ($global:PSAnsiFileMap).where( {$_.description -eq 'TopContainer'}).Ansi $script:child = ($global:PSAnsiFileMap).where( {$_.description -eq 'ChildContainer'}).Ansi } function GetIndentString { [CmdletBinding()] Param([bool[]]$IsLast) Write-Verbose "Starting $($myinvocation.MyCommand)" # $numPadChars = 1 $str = '' for ($i = 0; $i -lt $IsLast.Count - 1; $i++) { $sepChar = if ($IsLast[$i]) {' '} else {'|'} $str += "$sepChar" $str += " " * ($IndentSize - 1) } #The \ indicates the item is the last in the container $teeChar = if ($IsLast[-1]) {'\'} else {'+'} $str += "$teeChar" $str += "-" * ($IndentSize - 1) $str Write-Verbose "Ending $($myinvocation.MyCommand)" } function ShowProperty() { [cmdletbinding()] Param( [string]$Name, [string]$Value, [bool[]]$IsLast ) Write-Verbose "Starting $($myinvocation.MyCommand)" $indentStr = GetIndentString $IsLast $propStr = "${indentStr} $Name = " $availableWidth = $host.UI.RawUI.BufferSize.Width - $propStr.Length - 1 if ($Value.Length -gt $availableWidth) { $ellipsis = '...' $val = $Value.Substring(0, $availableWidth - $ellipsis.Length) + $ellipsis } else { $val = $Value } $propStr += $val $propStr Write-Verbose "Ending $($myinvocation.MyCommand)" } function ShowItem { [CmdletBinding()] Param( [string]$Path, [string]$Name, [bool[]]$IsLast, [bool]$HasChildItems = $false, [switch]$Color, [ValidateSet("topcontainer","childcontainer","file")] [string]$ItemType ) Write-Verbose "Starting $($myinvocation.MyCommand)" $PSBoundParameters | Out-String | Write-Verbose if ($IsLast.Count -eq 0) { if ($Color) { # Write-Output "$([char]0x1b)[38;2;0;255;255m$("$(Resolve-Path $Path)")$([char]0x1b)[0m" Write-Output "$($script:top)$("$(Resolve-Path $Path)")$([char]0x1b)[0m" } else { "$(Resolve-Path $Path)" } } else { $indentStr = GetIndentString $IsLast if ($Color) { #ToDo - define a user configurable color map Switch ($ItemType) { "topcontainer" { Write-Output "$indentStr$($script:top)$($Name)$([char]0x1b)[0m" #Write-Output "$indentStr$([char]0x1b)[38;2;0;255;255m$("$Name")$([char]0x1b)[0m" } "childcontainer" { Write-Output "$indentStr$($script:child)$($Name)$([char]0x1b)[0m" #Write-Output "$indentStr$([char]0x1b)[38;2;255;255;0m$("$Name")$([char]0x1b)[0m" } "file" { #only use map items with regex patterns foreach ($item in ($global:PSAnsiFileMap | Where-object Pattern)) { if ($name -match $item.pattern -AND (-not $done)) { write-Verbose "Detected a $($item.description) file" Write-Output "$indentStr$($item.ansi)$($Name)$([char]0x1b)[0m" #set a flag indicating we've made a match to stop looking $done = $True } } #no match was found so just write the item. if (-Not $done) { write-verbose "No ansi match for $Name" Write-Output "$indentStr$Name$([char]0x1b)[0m" } } #file Default { Write-Output "$indentStr$Name" } } #switch } #if color else { "$indentStr$Name" } } if ($ShowProperty) { $IsLast += @($false) $excludedProviderNoteProps = 'PSChildName', 'PSDrive', 'PSParentPath', 'PSPath', 'PSProvider' $props = @(Get-ItemProperty $Path -ea 0) if ($props[0] -is [pscustomobject]) { if ($ShowProperty -eq "*") { $props = @($props[0].psobject.properties | Where-object {$excludedProviderNoteProps -notcontains $_.Name }) } else { $props = @($props[0].psobject.properties | Where-object {$excludedProviderNoteProps -notcontains $_.Name -AND $showproperty -contains $_.name}) } } for ($i = 0; $i -lt $props.Count; $i++) { $prop = $props[$i] $IsLast[-1] = ($i -eq $props.count - 1) -and (-Not $HasChildItems) $showParams = @{ Name = $prop.Name Value = $prop.Value IsLast = $IsLast } ShowProperty @showParams } } Write-Verbose "Ending $($myinvocation.MyCommand)" } function ShowContainer { [CmdletBinding()] Param ( [string]$Path, [string]$Name = $(Split-Path $Path -Leaf), [bool[]]$IsLast = @(), [switch]$IsTop, [switch]$Color ) Write-Verbose "Starting $($myinvocation.MyCommand) on $Path" $PSBoundParameters | Out-String | Write-Verbose if ($IsLast.Count -gt $Depth) { return } $childItems = @() if ($IsLast.Count -lt $Depth) { try { $rpath = Resolve-Path -literalpath $Path -ErrorAction stop } catch { Throw "Failed to resolve $path. This PSProvider and path may be incompatible with this command." #bail out return } $childItems = @(Get-ChildItem $rpath -ErrorAction $ErrorActionPreference | Where-object {$ShowItem -or $_.PSIsContainer}) } $hasChildItems = $childItems.Count -gt 0 # Show the current container $sParams = @{ path = $Path name = $Name IsLast = $IsLast hasChildItems = $hasChildItems Color = $Color ItemType = If ($isTop) {"topcontainer"} else {"childcontainer"} } ShowItem @sParams # Process the children of this container $IsLast += @($false) for ($i = 0; $i -lt $childItems.count; $i++) { $childItem = $childItems[$i] $IsLast[-1] = ($i -eq $childItems.count - 1) if ($childItem.PSIsContainer) { $iParams = @{ path = $childItem.PSPath name = $childItem.PSChildName isLast = $IsLast Color = $color } ShowContainer @iParams } elseif ($ShowItem) { $unresolvedPath = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($childItem.PSPath) $name = Split-Path $unresolvedPath -Leaf $iParams = @{ Path = $childItem.PSPath Name = $name IsLast = $IsLast Color = $Color ItemType = "File" } ShowItem @iParams } } Write-Verbose "Ending $($myinvocation.MyCommand)" } } #begin Process { Write-Verbose "Detected parameter set $($pscmdlet.ParameterSetName)" if ($psCmdlet.ParameterSetName -eq "Path") { # In the -Path (non-literal) resolve path in case it is wildcarded. $resolvedPaths = @($Path | Resolve-Path | Foreach-object {$_.Path}) } else { # Must be -LiteralPath $resolvedPaths = @($LiteralPath) } Write-Verbose "Using these PSBoundParameters" $PSBoundParameters | Out-String | Write-Verbose foreach ($rpath in $resolvedPaths) { Write-Verbose "Processing $rpath" $showParams = @{ Path = $rpath Color = $colorize IsTop = $True } ShowContainer @showParams } } #process end { Write-Verbose "Ending $($myinvocation.MyCommand)" } } |