`ord` makes RPC calls to `bitcoind`, which usually requires a username and
password.

By default, `ord` looks a username and password in the cookie file created by
`bitcoind`.

The cookie file path can be configured using `--cookie-file`:

```
ord --cookie-file /path/to/cookie/file server
```

Alternatively, `ord` can be supplied with a username and password on the
command line:

```
ord --bitcoin-rpc-user foo --bitcoin-rpc-pass bar server
```

Using environment variables:

```
export ORD_BITCOIN_RPC_USER=foo
export ORD_BITCOIN_RPC_PASS=bar
ord server
```

Or in the config file:

```yaml
bitcoin_rpc_user: foo
bitcoin_rpc_pass: bar
```

Logging
--------

`ord` uses [env_logger](https://docs.rs/env_logger/latest/env_logger/). Set the
`RUST_LOG` environment variable in order to turn on logging. For example, run
the server and show `info`-level log messages and above:

```
$ RUST_LOG=info cargo run server
```

New Releases
------------

Release commit messages use the following template:

```
Release x.y.z

- Bump version: x.y.z → x.y.z