CLI helper: Unwrap

[grod220]

Final CLI helper: Unwrap instruction. Converts wrapped tokens back into the original unwrapped version.

Walkthrough for testing locally:

1. Build program and binary

cargo build-sbf && cargo build

2. Start solana test validator

solana-test-validator \
  --bpf-program TwRapQCDhWkZRrDaHfZGuHxkZ91gHDRkyuzNqeU5MgR target/deploy/spl_token_wrap.so \
  --reset

3. Create a new mint & token account

spl-token create-token
# mint addr -> 8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv
spl-token create-account 8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv 
# token account -> J3enKxioWoZqJP8CpZGmJhq2YwTvzopuiWYu4Rb97rst
spl-token mint 8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv 100000

4. Run CreateMint token-wrap command

cargo run --bin spl-token-wrap create-mint \
    8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv \
    TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA \
    TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb

# Keep note of console output
# Wrapped mint address: 3KdPWyHmyVDThDjf4jE6m4sxmgYev9sSG74GW9BcFyK9

5. Find PDAs

cargo run --bin spl-token-wrap find-pdas 8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb

# note wrapped mint authority
# Wrapped mint authority: 4WGS8PTY9fetLDY9nn3wBUWSGm92ysX5TaR3svKCPneQ

6. Create an escrow token account and set its owner to the mint_authority

spl-token create-account 8XFsJ3v6zycqQaxhmgLQtYrYNCxL52q8ERWeZHNh3EDv --owner 4WGS8PTY9fetLDY9nn3wBUWSGm92ysX5TaR3svKCPneQ --fee-payer /Users/gabe/.config/solana/id.json

# Escrow: 5GcUo7Dk2kdoZc1MD5gwXrbpufm3VoXZj7qLda62g6Qe

7. Create a recipient token account of that new wrapped mint

spl-token create-account 3KdPWyHmyVDThDjf4jE6m4sxmgYev9sSG74GW9BcFyK9 --program-id TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb

# recipient account: EJPFBmkU7gnV2KmaQwQsm3sgY3BqMqknRQYGeJ4Ac7Bx

8. Issue Wrap command

spl-token-wrap wrap <UNWRAPPED_TOKEN_ACCOUNT> <ESCROW_ACCOUNT> <WRAPPED_TOKEN_PROGRAM> <AMOUNT>

cargo run --bin spl-token-wrap wrap J3enKxioWoZqJP8CpZGmJhq2YwTvzopuiWYu4Rb97rst 5GcUo7Dk2kdoZc1MD5gwXrbpufm3VoXZj7qLda62g6Qe TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb 55

9. Issue Unwrap command

spl-token-wrap wrap <WRAPPED_TOKEN_ACCOUNT> <ESCROW_ACCOUNT> <UNWRAPPED_TOKEN_RECIPIENT> <AMOUNT>

cargo run --bin spl-token-wrap unwrap EJPFBmkU7gnV2KmaQwQsm3sgY3BqMqknRQYGeJ4Ac7Bx 5GcUo7Dk2kdoZc1MD5gwXrbpufm3VoXZj7qLda62g6Qe J3enKxioWoZqJP8CpZGmJhq2YwTvzopuiWYu4Rb97rst 25

[buffalojoec]

Nice!! I think this looks great.

[joncinque]

Looks really good! Mostly small things

[joncinque]

Just a few last things, looking really close!

[joncinque]

This can be done in a separate command, but it would be good to have a way to find out: "Given a mint address, is this a wrapped token mint? If so, what's it wrapping?"

[joncinque]

Looks good to me!