-[String]$configMysqlHost = "localhost"
-[Int32]$configMysqlPort = 3306
-[String]$configMysqlUser = "backup"
-[String]$configMysqlPassword = "backup"
+# 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
-[String]$configMysqlCli = "C:\Program Files\MariaDB 10.5\bin\mysql.exe"
-[String]$configMysqldumpCli = "C:\Program Files\MariaDB 10.5\bin\mysqldump.exe"
+# Config
-[String]$configBackupDir = "backup"
-[Int32]$configRotate = 7
+# MySQL host
+$configMysqlHost = "localhost"
+# Port of MySQL host
+$configMysqlPort = 3306
+# MySQL user using to connect to MySQL
+$configMysqlUser = "backup"
+# Password for MySQL user
+$configMysqlPassword = "backup"
+# Path to MySQL CLI program
+$configMysqlCli = "C:\Program Files\MariaDB 10.5\bin\mysql.exe"
+# Path to mysqldump CLI program
+$configMysqldumpCli = "C:\Program Files\MariaDB 10.5\bin\mysqldump.exe"
+
+# Directory where to store the backups
+$configBackupDir = "backup"
+# Number of backups to keep, set to 0 to keep all backups
+$configRotate = 7
+
+# Databases to backup, leave empty to backup all databases
$configDbBackup = @()
-$configDbExclusions = @("test")
+# If $configDbBackup is empty, don't backup the databases defined here
+$configDbExclude = @("test")
+# If $configDbBackup is empty, don't backup the databases matching these patterns
+$configDbExcludePattern = @()
-$defaultExclusions = @("information_schema", "performance_schema")
+# End of config
function Get-Databases() {
$databaseString = (& $configMysqlCli --host=$configMysqlHost --port=$configMysqlPort --user=$configMysqlUser --password=$configMysqlPassword --batch --skip-column-names -e "SHOW DATABASES;")
+
+ if($LastExitCode -ne 0) {
+ throw "MySQL CLI exited with Exit code $LastExitCode"
+ }
+
$databases = $databaseString.split([Environment]::NewLine)
return $databases
function Create-Backup([String]$database, [String]$target) {
& $configMysqldumpCli --host=$configMysqlHost --port=$configMysqlPort --user=$configMysqlUser --password=$configMysqlPassword --single-transaction --result-file=$target $database
+
+ if($LastExitCode -ne 0) {
+ throw "mysqldump exited with Exit code $LastExitCode"
+ }
}
function Rotate-Backups($backupDir) {
if($configRotate -le 0) {
- return
- }
-
- $keepBackupsCount = $configRotate
-
- Get-ChildItem $backupDir -File | Where-Object {($_.Name -match "^backup-.+-\d{8,}-\d{6}\.sql$")} | Sort-Object -Descending |
- Foreach-Object {
- if($keepBackupsCount -ge 0) {
- $keepBackupsCount--
- }
-
- if($keepBackupsCount -eq -1) {
- Write-Output "Deleting backup $($_.FullName)"
- Remove-Item -Force $_.FullName
- }
- }
+ return
+ }
+
+ $keepBackupsCount = $configRotate
+
+ Get-ChildItem $backupDir -File | Where-Object {($_.Name -match "^backup-.+-\d{8,}-\d{6}\.sql$")} | Sort-Object -Descending |
+ Foreach-Object {
+ if($keepBackupsCount -ge 0) {
+ $keepBackupsCount--
+ }
+
+ if($keepBackupsCount -eq -1) {
+ Write-Output "Deleting backup $($_.FullName)"
+ Remove-Item -Force $_.FullName
+ }
+ }
}
+$defaultDbExclude = @("information_schema", "performance_schema")
+
$currDaytime = Get-Date -format "yyyyMMdd-HHmmss"
-$databases = Get-Databases | Where-Object {!($_ -in $defaultExclusions -or $_ -in $configDbExclusions)}
+# Get a list of all databases
+try {
+ $databases = Get-Databases | Where-Object {!($_ -in $defaultDbExclude)}
+}
+catch {
+ Write-Output "Failed to get list of databases"
+ Write-Output $_
+ exit 1
+}
+
+# Create a list of databases to backup
$databasesToBackup = @()
if($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 {
- $databasesToBackup = $databases
+ :excludeOuter
+ foreach($rDb in $databases) {
+ if($rDb -in $configDbExclude) {
+ continue;
+ }
+
+ foreach($cPattern in $configDbExcludePattern) {
+ if($rDb -match $cPattern) {
+ continue excludeOuter;
+ }
+ }
+
+ $databasesToBackup += $rDb
+ }
}
+# Iterate over the list of databases and back them up and rotate the backups
foreach($d in $databasesToBackup) {
$databaseBackupDir = Join-Path -Path $configBackupDir -ChildPath $d
if(!(Test-Path $databaseBackupDir)) {
- New-Item -ItemType directory -Path $databaseBackupDir -ErrorAction Stop | Out-Null
+ try {
+ New-Item -ItemType directory -Path "$databaseBackupDir" -ErrorAction Stop | Out-Null
+ }
+ catch {
+ Write-Output "Failed to create directory $databaseBackupDir"
+ Write-Output $_
+ exit 1
+ }
}
$databaseBackupFile = Join-Path -Path $databaseBackupDir -ChildPath "backup-$d-$currDaytime.sql"
Write-Output "Backing up $d to $databaseBackupFile..."
- Create-Backup $d $databaseBackupFile
- Rotate-Backups $databaseBackupDir
+
+ try {
+ Create-Backup $d $databaseBackupFile
+ Rotate-Backups $databaseBackupDir
+ }
+ catch {
+ Write-Output "Could not backup database $d to $databaseBackupFile"
+ Write-Output $_
+ }
}
\ No newline at end of file
git.p6c8.net / psmysqlbackup.git / blobdiff