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Research-Stack/4-Infrastructure/NoDupeLabs/wiki/API/Transaction.md

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Transaction API

TransactionLog

Logs operations for rollback capability.

Constructor

TransactionLog(log_dir: str = ".nodupe/backups")

Methods

begin_transaction

def begin_transaction(self) -> str

Start a new transaction.

Returns: Transaction ID

log_operation

def log_operation(self, operation: Operation) -> None

Log an operation in the current transaction.

Parameters:

  • operation: Operation to log

commit_transaction

def commit_transaction(self) -> str

Commit the transaction.

Returns: Final status

rollback_transaction

def rollback_transaction(self, transaction_id: str) -> bool

Rollback all operations in a transaction.

Parameters:

  • transaction_id: ID of transaction to rollback

Returns: True if successful

list_transactions

def list_transactions(self) -> list[dict]

List all transactions.

Returns: List of transaction summaries

Operation

Represents a single operation in a transaction.

Constructor

Operation(
    operation_type: str,
    path: str,
    original_hash: Optional[str] = None,
    backup_path: Optional[str] = None,
    new_path: Optional[str] = None
)

Properties

  • operation_type: Type of operation (delete, modify, move, copy, restore)
  • path: File path
  • original_hash: Original file hash
  • backup_path: Backup file path
  • new_path: New path (for move operations)