src/cmdlet/Import-Assembly.ps1
|
# Copyright 2019, Adam Edwards # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Import-Assembly { [cmdletbinding()] param( [parameter(mandatory=$true)] [string] $AssemblyName, [string] $AssemblyRelativePath = $null, [string] $AssemblyRoot = $null, [string] $TargetFrameworkMoniker = $null ) $searchRoot = if ( $assemblyRoot ) { $assemblyRoot } else { $callerScriptFile = (get-pscallstack)[1].scriptname if ( ! $callerScriptFile ) { throw [ArgumentException]::new("Cannot load assembly '$AssemblyName' using the specified relative path '$AssemblyRelativePath' because the script file path of the caller cannot be determined; it may be a dynamic script block. Use the AssemblyRoot parameter to specify an absolute search path instead") } split-path -parent (get-pscallstack)[1].scriptname } write-verbose "Using assembly root '$searchRoot'..." $assemblyFile = split-path -leaf $assemblyName if ( $assemblyFile -ne $assemblyName ) { throw "Parameter 'AssemblyName' must be a single name -- the specified value '$AssemblyName' contains path separators and is not valid." } $searchRootDirectory = if ( $AssemblyRelativePath ) { join-path $searchRoot $AssemblyRelativePath } else { $searchRoot } $searchRootItem = get-item $searchRootDirectory -erroraction ignore if ( $searchRootItem -eq $null ) { throw "Unable to find assembly '$assemblyName' because given search directory '$searchRootDirectory' was not accessible" } $searchRootFullyQualified = $searchRootItem.fullname write-verbose "Using fully qualified assembly root '$searchRootFullyQualified' to find assembly '$assemblyFile'..." LoadAssemblyFromRoot $searchRootFullyQualified $assemblyFile $TargetFrameworkMoniker } |