functions/Format-DbaBackupInformation.ps1
|
function Format-DbaBackupInformation { <# .SYNOPSIS Transforms the data in a dbatools BackupHistory object for a restore .DESCRIPTION Performs various mapping on Backup History, ready restoring Options include changing restore paths, backup paths, database name and many others .PARAMETER BackupHistory A dbatools backupHistory object, normally this will have been created using Select-DbaBackupInformation .PARAMETER ReplaceDatabaseName If a single value is provided, this will be replaced do all occurrences a database name If a Hashtable is passed in, each database name mention will be replaced as specified. If a database's name does not appear it will not be replace DatabaseName will also be replaced where it occurs in the file paths of data and log files. Please note, that this won't change the Logical Names of data files, that has to be done with a separate Alter DB call .PARAMETER DatabaseNamePrefix This string will be prefixed to all restored database's name .PARAMETER DataFileDirectory This will move ALL restored files to this location during the restore .PARAMETER LogFileDirectory This will move all log files to this location, overriding DataFileDirectory .PARAMETER DestinationFileStreamDirectory This move the FileStream folder and contents to the new location, overriding DataFileDirectory .PARAMETER FileNamePrefix This string will be prefixed to all restored files (Data and Log) .PARAMETER RebaseBackupFolder Use this to rebase where your backups are stored. .PARAMETER Continue Indicates that this is a continuing restore .PARAMETER DatabaseFilePrefix A string that will be prefixed to every file restored .PARAMETER DatabaseFileSuffix A string that will be suffixed to every file restored .PARAMETER ReplaceDbNameInFile If set, will replace the old database name with the new name if it occurs in the file name .PARAMETER FileMapping A hashtable that can be used to move specific files to a location. $FileMapping = @{'DataFile1'='c:\restoredfiles\Datafile1.mdf';'DataFile3'='d:\DataFile3.mdf'} And files not specified in the mapping will be restored to their original location This Parameter is exclusive with DestinationDataDirectory If specified, this will override any other file renaming/relocation options. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: DisasterRecovery, Backup, Restore Author: Stuart Moore (@napalmgram), stuart-moore.com Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Format-DbaBackupInformation .EXAMPLE PS C:\> $History | Format-DbaBackupInformation -ReplaceDatabaseName NewDb Changes as database name references to NewDb, both in the database name and any restore paths. Note, this will fail if the BackupHistory object contains backups for more than 1 database .EXAMPLE PS C:\> $History | Format-DbaBackupInformation -ReplaceDatabaseName @{'OldB'='NewDb';'ProdHr'='DevHr'} Will change all occurrences of original database name in the backup history (names and restore paths) using the mapping in the hashtable. In this example any occurrence of OldDb will be replaced with NewDb and ProdHr with DevPR .EXAMPLE PS C:\> $History | Format-DbaBackupInformation -DataFileDirectory 'D:\DataFiles\' -LogFileDirectory 'E:\LogFiles\ This example with change the restore path for all data files (everything that is not a log file) to d:\datafiles And all Transaction Log files will be restored to E:\Logfiles .EXAMPLE PS C:\> $History | Format-DbaBackupInformation -RebaseBackupFolder f:\backups This example changes the location that SQL Server will look for the backups. This is useful if you've moved the backups to a different location #> [CmdletBinding()] param ( [parameter(Mandatory, ValueFromPipeline)] [object[]]$BackupHistory, [object]$ReplaceDatabaseName, [switch]$ReplaceDbNameInFile, [string]$DataFileDirectory, [string]$LogFileDirectory, [string]$DestinationFileStreamDirectory, [string]$DatabaseNamePrefix, [string]$DatabaseFilePrefix, [string]$DatabaseFileSuffix, [string]$RebaseBackupFolder, [switch]$Continue, [hashtable]$FileMapping, [switch]$EnableException ) begin { Write-Message -Message "Starting" -Level Verbose if ($null -ne $ReplaceDatabaseName) { if ($ReplaceDatabaseName -is [string] -or $ReplaceDatabaseName.ToString() -ne 'System.Collections.Hashtable') { Write-Message -Message "String passed in for DB rename" -Level Verbose $ReplaceDatabaseNameType = 'single' } elseif ($ReplaceDatabaseName -is [HashTable] -or $ReplaceDatabaseName.ToString() -eq 'System.Collections.Hashtable' ) { Write-Message -Message "Hashtable passed in for DB rename" -Level Verbose $ReplaceDatabaseNameType = 'multi' } else { Write-Message -Message "ReplacemenDatabaseName is $($ReplaceDatabaseName.Gettype().ToString()) - $ReplaceDatabaseName" -level Verbose } } if ((Test-Bound -Parameter DataFileDirectory) -and $DataFileDirectory[-1] -eq '\' ) { $DataFileDirectory = $DataFileDirectory.substring(0, $DataFileDirectory.length - 1) } if ((Test-Bound -Parameter DestinationFileStreamDirectory) -and $DestinationFileStreamDirectory[-1] -eq '\' ) { $DestinationFileStreamDirectory = $DestinationFileStreamDirectory.substring(0, $DestinationFileStreamDirectory.length - 1) } if ((Test-Bound -Parameter LogFileDirectory) -and $LogFileDirectory[-1] -eq '\' ) { $LogFileDirectory = $LogFileDirectory.substring(0, $LogFileDirectory.length - 1) } if ((Test-Bound -Parameter RebaseBackupFolder) -and $RebaseBackupFolder[-1] -eq '\' ) { $RebaseBackupFolder = $RebaseBackupFolder.substring(0, $RebaseBackupFolder.length - 1) } } process { ForEach ($History in $BackupHistory) { if ("OriginalDatabase" -notin $History.PSobject.Properties.name) { $History | Add-Member -Name 'OriginalDatabase' -Type NoteProperty -Value $History.Database } if ("OriginalFileList" -notin $History.PSobject.Properties.name) { $History | Add-Member -Name 'OriginalFileList' -Type NoteProperty -Value '' $History | ForEach-Object {$_.OriginalFileList = $_.FileList} } if ("OriginalFullName" -notin $History.PSobject.Properties.name) { $History | Add-Member -Name 'OriginalFullName' -Type NoteProperty -Value $History.FullName } if ("IsVerified" -notin $History.PSobject.Properties.name) { $History | Add-Member -Name 'IsVerified' -Type NoteProperty -Value $False } Switch ($History.Type) { 'Full' {$History.Type = 'Database'} 'Differential' {$History.Type = 'Database Differential'} 'Log' {$History.Type = 'Transaction Log'} } if ($ReplaceDatabaseNameType -eq 'single' -and $ReplaceDatabaseName -ne '' ) { $History.Database = $ReplaceDatabaseName Write-Message -Message "New DbName (String) = $($History.Database)" -Level Verbose } elseif ($ReplaceDatabaseNameType -eq 'multi') { if ($null -ne $ReplaceDatabaseName[$History.Database]) { $History.Database = $ReplaceDatabaseName[$History.Database] Write-Message -Message "New DbName (Hash) = $($History.Database)" -Level Verbose } } $History.Database = $DatabaseNamePrefix + $History.Database if ($true -ne $Continue) { $History.FileList | ForEach-Object { if ($null -ne $FileMapping ) { if ($null -ne $FileMapping[$_.LogicalName]) { $_.PhysicalName = $FileMapping[$_.LogicalName] } } else { if ($ReplaceDbNameInFile -eq $true) { $_.PhysicalName = $_.PhysicalName -Replace $History.OriginalDatabase, $History.Database } Write-message -Message " 1 PhysicalName = $($_.PhysicalName) " -Level Verbose $Pname = [System.Io.FileInfo]$_.PhysicalName $RestoreDir = $Pname.DirectoryName if ($_.Type -eq 'D' -or $_.FileType -eq 'D') { if ('' -ne $DataFileDirectory) { $RestoreDir = $DataFileDirectory } } elseif ($_.Type -eq 'L' -or $_.FileType -eq 'L') { if ('' -ne $LogFileDirectory) { $RestoreDir = $LogFileDirectory } elseif ('' -ne $DataFileDirectory) { $RestoreDir = $DataFileDirectory } } elseif ($_.Type -eq 'S' -or $_.FileType -eq 'S') { if ('' -ne $DestinationFileStreamDirectory) { $RestoreDir = $DestinationFileStreamDirectory } elseif ('' -ne $DataFileDirectory) { $RestoreDir = $DataFileDirectory } } $_.PhysicalName = $RestoreDir + "\" + $DatabaseFilePrefix + $Pname.BaseName + $DatabaseFileSuffix + $pname.extension Write-message -Message "PhysicalName = $($_.PhysicalName) " -Level Verbose } } } if ('' -ne $RebaseBackupFolder -and $History.FullName[0] -notmatch 'http') { Write-Message -Message 'Rebasing backup files' -Level Verbose for ($j = 0; $j -lt $History.fullname.count; $j++){ $file = [System.IO.FileInfo]($History.fullname[$j]) $History.fullname[$j] = $RebaseBackupFolder + "\" + $file.BaseName + $file.Extension } } $History } } } |