Functions/Resolve-WhiskeyNodePath.ps1
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function Resolve-WhiskeyNodePath { <# .SYNOPSIS Gets the path to the Node executable. .DESCRIPTION The `Resolve-WhiskeyNodePath` resolves the path to the Node executable in a cross-platform manner. The path/name of the Node executable is different on different operating systems. Pass the path to the root directory where Node is installed to the `NodeRootPath` parameter. If you want the path to the local version of Node that Whiskey installs for tasks that need it, pass the build root path to the `BuildRootPath` parameter. Returns the full path to the Node executable. If one isn't found, writes an error and returns nothing. .EXAMPLE Resolve-WhiskeyNodePath -NodeRootPath $pathToNodeInstallRoot Demonstrates how to get the path to the Node executable when the path to the root Node directory is in the `$pathToInstallRoot` variable. .EXAMPLE Resolve-WhiskeyNodePath -BuildRootPath $TaskContext.BuildRoot Demonstrates how to get the path to the Node executable in the directory where Whiskey installs it. #> [CmdletBinding()] param( [Parameter(Mandatory,ParameterSetName='FromBuildRoot')] [string] # The path to the build root. This will return the path to Node where Whiskey installs a local copy. $BuildRootPath, [Parameter(Mandatory,ParameterSetName='FromNodeRoot')] [string] # The path to the root of an Node package, as downloaded and expanded from the Node.js download page. $NodeRootPath ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState if( $PSCmdlet.ParameterSetName -eq 'FromBuildRoot' ) { return (Resolve-WhiskeyNodePath -NodeRootPath (Join-Path -Path $BuildRootPath -ChildPath '.node')) } $nodePath = & { Join-Path -Path $NodeRootPath -ChildPath 'bin/node' Join-Path -Path $NodeRootPath -ChildPath 'node.exe' } | ForEach-Object { Write-Debug -Message ('Looking for Node executable at "{0}".' -f $_) $_ } | Where-Object { Test-Path -Path $_ -PathType Leaf } | Select-Object -First 1 | Resolve-Path | Select-Object -ExpandProperty 'ProviderPath' if( -not $nodePath ) { Write-Error -Message ('Node executable doesn''t exist in "{0}".' -f $NodeRootPath) -ErrorAction $ErrorActionPreference return } Write-Debug -Message ('Found Node executable at "{0}".' -f $nodePath) return $nodePath } |