captain 🧑‍✈️

Version control and key management for Solana programs.

• Automatic versioning of program binaries based on Cargo
• Separation of deployer and authority keys
• Per-cluster configuration
• Reusable and custom program addresses
• (optional) Integration with Anchor IDLs

Setup

Install via Cargo like so:

cargo install --git https://github.com/saber-hq/captain --force

Then, in your directory containing your root Cargo.toml, run the following command:

captain init

Usage

A Captain workflow works like so:

1. Build your latest programs via captain build
2. Deploy any new programs with captain deploy
3. Upgrade any new programs with captain upgrade

Build

First, build your programs using the command:

captain build

This runs anchor build -v if you have Anchor installed, and cargo build-bpf if you don't have Anchor installed.

Deploy

Once your new program is ready to be deployed to the blockchain, run:

captain deploy --program <program> --network <network>

where:

• <network> is one of mainnet, devnet, testnet, localnet, or debug
• <program> is the name of your program in the target/deploy/ directory. For example, if your program is at target/deploy/my_flash_loan_program.so, your <program> is my_flash_loan_program.

This does several things for you:

• Deploys the program
• Sets the deployer of the program to the upgrade_authority of <network> in your Captain.toml file
• If Anchor is installed, uploads the IDLs and sets the authority to the upgrade_authority

Upgrading

If you need to make changes to your program, you can run:

captain upgrade --program <program> --network <network>

This performs the following actions:

• Writes a new program buffer
• Replaces the existing program buffer with this new buffer using the upgrade authority
• (WIP) If Anchor is installed, uploads the new IDL

Support

For support, join the Saber Discord at chat.saber.so!

License

Apache-2.0