Allow to define exclusions based on regular expressions

[psmysqlbackup.git] / psmysqlbackup.ps1

diff --git a/psmysqlbackup.ps1 b/psmysqlbackup.ps1
index f67619bbb1cde54f42bdaf9f2e36322b01da1250..7e870ea347ab50e52f4dfd556e92dc07af29a8b1 100644 (file)
--- a/psmysqlbackup.ps1
+++ b/psmysqlbackup.ps1
@@ -1,3 +1,11 @@
+# PSMySQLBackup
+# PowerShell script for backing up MySQL / MariaDB databases on Windows 
+#
+# Author: Patrick Canterino <patrick@patrick-canterino.de>
+# WWW: https://www.patrick-canterino.de/
+#      https://github.com/pcanterino/psmysqlbackup
+# License: 2-Clause BSD License
+

 # Config
 
 $configMysqlHost = "localhost"
 # Config
 
 $configMysqlHost = "localhost"


@@ -12,7 +20,8 @@ $configBackupDir = "backup"
 $configRotate = 7
 
 $configDbBackup = @()
 $configRotate = 7
 
 $configDbBackup = @()

-$configDbExclusions = @("test")
+$configDbExclude = @("test")
+$configDbExcludePattern = @()

 
 # End of config
 
 
 # End of config
 


@@ -48,7 +57,7 @@ function Rotate-Backups($backupDir) {
         if($keepBackupsCount -ge 0) {
             $keepBackupsCount--
         }
         if($keepBackupsCount -ge 0) {
             $keepBackupsCount--
         }

-        
+

         if($keepBackupsCount -eq -1) {
             Write-Output "Deleting backup $($_.FullName)"
             Remove-Item -Force $_.FullName
         if($keepBackupsCount -eq -1) {
             Write-Output "Deleting backup $($_.FullName)"
             Remove-Item -Force $_.FullName


@@ -56,12 +65,12 @@ function Rotate-Backups($backupDir) {
     }
 }
 
     }
 }
 

-$defaultExclusions = @("information_schema", "performance_schema")
+$defaultDbExclude = @("information_schema", "performance_schema")

 
 $currDaytime = Get-Date -format "yyyyMMdd-HHmmss"
 
 try {
 
 $currDaytime = Get-Date -format "yyyyMMdd-HHmmss"
 
 try {

-    $databases = Get-Databases | Where-Object {!($_ -in $defaultExclusions -or $_ -in $configDbExclusions)}
+    $databases = Get-Databases | Where-Object {!($_ -in $defaultDbExclude)}

 }
 catch {
     Write-Output "Failed to get list of databases"
 }
 catch {
     Write-Output "Failed to get list of databases"


@@ -72,10 +81,29 @@ catch {
 $databasesToBackup = @()
 
 if($configDbBackup -and $configDbBackup.count -gt 0) {
 $databasesToBackup = @()
 
 if($configDbBackup -and $configDbBackup.count -gt 0) {

-    $databasesToBackup = $configDbBackup
+    foreach($cDb in $configDbBackup) {
+        if($cDb -in $databases) {
+            $databasesToBackup += $cDb
+        }
+        else {
+            Write-Warning "Not backing up database $cDb, because it does not exist"
+        }
+    }

 }
 else {
 }
 else {

-    $databasesToBackup = $databases
+    :excludeOuter foreach($rDb in $databases) {
+        if($rDb -in $configDbExclude) {
+            continue;
+        }
+
+        foreach($cPattern in $configDbExcludePattern) {
+            if($rDb -match $cPattern) {
+                continue excludeOuter;
+            }
+        }
+
+        $databasesToBackup += $rDb
+    }

 }
 
 foreach($d in $databasesToBackup) {
 }
 
 foreach($d in $databasesToBackup) {


@@ -90,11 +118,10 @@ foreach($d in $databasesToBackup) {
     
     try {
         Create-Backup $d $databaseBackupFile
     
     try {
         Create-Backup $d $databaseBackupFile

+        Rotate-Backups $databaseBackupDir

     }
     catch {
         Write-Output "Could not backup database $d to $databaseBackupFile"
         Write-Output $_
     }
     }
     catch {
         Write-Output "Could not backup database $d to $databaseBackupFile"
         Write-Output $_
     }

-    
-    Rotate-Backups $databaseBackupDir

 }
\ No newline at end of file
 }
\ No newline at end of file