functions/Read-AzScriptFile.ps1
|
function Read-AzScriptFile { <# .SYNOPSIS Scans scriptfiles for required changes to migrate from AzureAD or Msonline to Microsoft.Graph. .DESCRIPTION Scans scriptfiles for required changes to migrate from AzureAD or Msonline to Microsoft.Graph. Does not apply any changes, returns one entry per change needed, plus one for each message - error, warning or info - generated from a given file. Note: This scan uses the Refactor module's system of transforms to perform the scan, more details on that can be found on the project site: https://github.com/FriedrichWeinmann/Refactor The transform files used _by default_ can be found in the data sub-folder of this module: https://github.com/FriedrichWeinmann/PSAzureMigrationAdvisor/tree/master/PSAzureMigrationAdvisor/data Use the -TransformPath parameter to override this with your own transforms if desired. .PARAMETER Path Path to the script-file(s) to scan .PARAMETER Name Name of the script to scan Used for scenarios where the scanned code is not in a file format (e.g. from Azure DevOps API) .PARAMETER Content Content/Code of the script to scan Used for scenarios where the scanned code is not in a file format (e.g. from Azure DevOps API) .PARAMETER Type What kind of module to migrate. Supports scanning for migrating AzureADPreview, AzureAD or Msonline, defaults to scanning AzureADPreview & MSOnline in parallel. .PARAMETER TransformPath By default, this command uses a predefined set of scanning rules to determine which changes to perform and which warnings to write. You can find the rules used in the module's data folder or on Github: https://github.com/FriedrichWeinmann/PSAzureMigrationAdvisor/tree/master/PSAzureMigrationAdvisor/data With this parameter, you can have the tool use instead your own transform/scanning ruleset. For more details on how this works and what you can do with it, see the documentation on the Refactor module: https://github.com/FriedrichWeinmann/Refactor If your own customizations could be viable for a larger audience, please consider filing them as a pull request on this project. .PARAMETER ExpandDevOps Adds properties to the output for the input's organization, project, repository and branch. Only intended for input from scanning Azure DevOps Services repositories using the AzureDevOps.Services.OpenApi module. .PARAMETER EnableException Replaces user friendly yellow warnings with bloody red exceptions of doom! Use this if you want the function to throw terminating errors you want to catch. .EXAMPLE PS C:\> Get-ChildItem C:\scripts -Recurse | Read-AzScriptFile Scan all files under c:\scripts recursively and get a list of changes to perform and warnings to consider. #> [CmdletBinding(DefaultParameterSetName = 'Path')] param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'Path')] [Alias('FullName')] [string[]] $Path, [Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'Content')] [string] $Name, [Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'Content')] [AllowEmptyString()] [string] $Content, [ValidateSet('AzureADPreview', 'AzureAD', 'MSOnline')] [string[]] $Type = @('AzureADPreview', 'MSOnline'), [string[]] $TransformPath, [Parameter(ParameterSetName = 'Content')] [switch] $ExpandDevOps, [switch] $EnableException ) begin { #region Functions function Read-ScriptFile { [CmdletBinding()] param ( [Refactor.ScriptFile] $ScriptFile, [string[]] $CommandNames, [switch] $ExpandDevOps ) if ($ExpandDevOps) { $splitPath = $ScriptFile.Path -split "/", 4 $branch = ($ScriptFile.Path -split '\[')[-1].Trim(']') $devOpsHash = [ordered]@{ Organization = $splitPath[0] Project = $splitPath[1] Repository = $splitPath[2] Branch = $branch } } $hashAlgorithm = [System.Security.Cryptography.HashAlgorithm]::Create("MD5") $messageParam = @{ FunctionName = 'Read-AzScriptFile' ModuleName = 'PSAzureMigrationAdvisor' Target = $ScriptFile.Path } $relevantTokens = $scriptFile.GetTokens() | Where-Object Name -In $CommandNames | Where-Object Type -EQ Command if (-not $relevantTokens) { Write-PSFMessage @messageParam -String 'Read-AzScriptFile.Path.NoAzCommand' -StringValues $ScriptFile.Path return } $fileBytes = [System.Text.Encoding]::UTF8.GetBytes($scriptFile.Content) $fileHash = $hashAlgorithm.ComputeHash($fileBytes).ForEach{ $_.ToString('x2') } -join "" Write-PSFMessage @messageParam -String 'Read-AzScriptFile.Path.CommandsFound' -StringValues @($relevantTokens).Count, $ScriptFile.Path $results = $scriptFile.Transform($relevantTokens) $messagesUsed = [System.Collections.ArrayList]::new() foreach ($result in $results.Results) { $messages = $results.Messages | Where-Object Token -EQ $result.Token $resultHash = [ordered]@{ PSTypeName = 'PSAzureMigrationAdvisor.ScanResult' Path = $result.Path Command = $result.Token -replace '^Command -> ' CommandLine = $result.Token.Ast.Extent.StartLineNumber Before = $result.Change.Before After = $result.Change.After Message = $messages.Text -join "`n" MessageType = $messages.Type -join "`n" FileHash = $fileHash } if ($ExpandDevOps) { $resultHash += $devOpsHash } [PSCustomObject]$resultHash foreach ($message in $messages) { $null = $messagesUsed.Add($message) } } foreach ($message in $results.Messages) { # If messages were found that are not associated to a resultant token if ($message -in $messagesUsed) { continue } $resultHash = [ordered]@{ PSTypeName = 'PSAzureMigrationAdvisor.ScanResult' Path = $results.Path Command = $message.Data.Name CommandLine = $message.Token.Ast.Extent.StartLineNumber Before = '' After = '' Message = $message.Text MessageType = $message.Type FileHash = $fileHash } if ($ExpandDevOps) { $resultHash += $devOpsHash } [PSCustomObject]$resultHash } } #endregion Functions Clear-ReTokenTransformationSet if ($TransformPath) { Import-ReTokenTransformationSet -Path $TransformPath } else { Import-MappingFile -Type $Type } $commandNames = (Get-ReTokenTransformationSet).Name } process { #region Process by Path foreach ($pathName in $Path) { try { $paths = Resolve-PSFPath -Path $pathName -Provider FileSystem } catch { Stop-PSFFunction -String 'Read-AzScriptFile.Path.ResolveError' -StringValues $pathName -EnableException $EnableException -ErrorRecord $_ -Tag path -Target $pathName -Continue -Cmdlet $PSCmdlet } #region Process individual files foreach ($filePath in $paths) { if ($filePath -notmatch '\.ps1$|\.psm1|.psf1') { Write-PSFMessage -Level Warning -String 'Read-AzScriptFile.Path.NoScript' -StringValues $filePath -Target $filePath continue } $scriptFile = Get-ReScriptFile -Path $filePath Read-ScriptFile -ScriptFile $scriptFile -CommandNames $commandNames } #endregion Process individual files } #endregion Process by Path #region Process by Name & Content if ($Name -and $Content) { $scriptFile = Get-ReScriptFile -Name $Name -Content $Content Read-ScriptFile -ScriptFile $scriptFile -CommandNames $commandNames -ExpandDevOps:$ExpandDevOps } #endregion Process by Name & Content } end { Clear-ReTokenTransformationSet } } |