5944756b78 Added tests for DescriptorSecretKey and DescriptorPublicKey (dhruvbaliyan)
58fea6b205 Added interfaces DescriptorSecretKey and DescriptorPublicKey (dhruvbaliyan)
4977cb6d68 Added interface DerivationPath (dhruvbaliyan)
930a1f1eb4 Added generate_mnemonic method (dhruvbaliyan)
973013cbdf Removed ExtendedKeyInfo & related methods (dhruvbaliyan)
Pull request description:
Would like to know if anything can be improved. Completes #87
Top commit has no ACKs.
Tree-SHA512: a480535c8965015d860336c717ec3c394778ac08194b0336eeba4209f3e3eff2072873a190dd8c9e4fac1e2f712c7040c838dc1c1a757d53c28866f118c99c17
6d53cbeb25 Fix fmt error (Steve Myers)
1a12f37a2f Set MSRV to 1.57.0 (Steve Myers)
Pull request description:
### Description
The `master` branch is currently not passing the new github checks.
A required dependency of `bdk-ffi-bindgen` is `uniffi_bindgen` and it depends on `os_str_bytes` v6.2.0 which has a MSRV of 1.57.0. I therefore had to make the MSRV of `bdk-ffi` also 1.57.0 and update the github actions. This PR also fixes a small `cargo fmt` warning.
### Notes to the reviewers
```shell
% cargo +1.56.1 build
error: package `os_str_bytes v6.2.0` cannot be built because it requires rustc 1.57.0 or newer, while the currently active rustc version is 1.56.1
```
```shell
% cargo tree -i os_str_bytes
os_str_bytes v6.2.0
└── clap_lex v0.2.4
└── clap v3.1.18
└── uniffi_bindgen v0.19.3
└── bdk-ffi-bindgen v0.2.0 (/Users/steve/git/notmandatory/bdk-ffi/bdk-ffi-bindgen)
```
### Checklists
#### All Submissions:
* [x] I've signed all my commits
* [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
* [x] I ran `cargo fmt` and `cargo clippy` before committing
Top commit has no ACKs.
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