CowDogMoo / bcp / 19997570054

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github

feat: add support for copying files from EC2 instances to local (#9)

**Key Changes:**

- Implemented bidirectional file transfer: copy both to and from EC2 instances
- Updated command parsing and validation to support remote-to-local transfers
- Extended S3 and SSM interfaces and logic for downloads and cleanup
- Improved documentation and usage examples for bidirectional transfer

**Added:**

- Transfer direction detection and handling in CLI, supporting both upload (to remote) and download (from remote) operations
- `TransferDirection` type in the model, with `ToRemote` and `FromRemote` values
- `ExecuteFromRemoteWithClients` function in transfer logic to handle remote-to-local transfers, including directory and file downloads and S3 cleanup
- S3 interface methods for `GetObject`, `DeleteObject`, and `ListObjectsV2` to enable file and directory downloads and cleanup
- `ValidateDestinationPath` function to ensure safe local destination paths when downloading from remote
- Documentation and usage examples for copying files from remote EC2 instances to local

**Changed:**

- Command usage and argument parsing to distinguish between upload and download scenarios in `cmd/root.go`
- Transfer config struct to include transfer direction
- Test mocks and test cases to account for the new transfer direction and S3 interface changes
- `README.md` to document bidirectional transfer capabilities, including new usage and examples

**Removed:**

- Deprecated `ExecuteWithClients` in favor of explicit direction-specific transfer functions

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