#1180 Create command for performing a backup

src/main/java/fr/xephi/authme/command/CommandInitializer.java

@@ -4,6 +4,7 @@ import com.google.common.collect.ImmutableList;
 import fr.xephi.authme.command.executable.HelpCommand;
 import fr.xephi.authme.command.executable.authme.AccountsCommand;
 import fr.xephi.authme.command.executable.authme.AuthMeCommand;
+import fr.xephi.authme.command.executable.authme.BackupCommand;
 import fr.xephi.authme.command.executable.authme.ChangePasswordAdminCommand;
 import fr.xephi.authme.command.executable.authme.ConverterCommand;
 import fr.xephi.authme.command.executable.authme.FirstSpawnCommand;
@@ -226,13 +227,23 @@ public class CommandInitializer {
             .parent(AUTHME_BASE)
             .labels("purge", "delete")
             .description("Purge old data")
-            .detailedDescription("Purge old AuthMeReloaded data longer than the specified amount of days ago.")
+            .detailedDescription("Purge old AuthMeReloaded data longer than the specified number of days ago.")
             .withArgument("days", "Number of days", false)
             .withArgument("all", "Add 'all' at the end to also purge players with lastlogin = 0", true)
             .permission(AdminPermission.PURGE)
             .executableCommand(PurgeCommand.class)
             .register();
 
+        // Backup command
+        CommandDescription.builder()
+            .parent(AUTHME_BASE)
+            .labels("backup")
+            .description("Perform a backup")
+            .detailedDescription("Creates a backup of the registered users.")
+            .permission(AdminPermission.BACKUP)
+            .executableCommand(BackupCommand.class)
+            .register();
+
         // Register the purgelastposition command
         CommandDescription.builder()
             .parent(AUTHME_BASE)

src/main/java/fr/xephi/authme/command/executable/authme/BackupCommand.java

@@ -0,0 +1,23 @@
+package fr.xephi.authme.command.executable.authme;
+
+import fr.xephi.authme.command.ExecutableCommand;
+import fr.xephi.authme.service.BackupService;
+import fr.xephi.authme.service.BackupService.BackupCause;
+import org.bukkit.command.CommandSender;
+
+import javax.inject.Inject;
+import java.util.List;
+
+/**
+ * Command to perform a backup.
+ */
+public class BackupCommand implements ExecutableCommand {
+
+    @Inject
+    private BackupService backupService;
+
+    @Override
+    public void executeCommand(CommandSender sender, List<String> arguments) {
+        backupService.doBackup(BackupCause.COMMAND, sender);
+    }
+}