feat: a CLI to send sms via twilio's API

I want to get an SMS when some of my machines are rebooted. This tool
let me do just that. The CLI takes as argument the path to a
configuration file that contains credentials to the API. It also has a
number of sub commands, and each sub command is associated with a
specific action.

For each action, a section in the configuration file is expected. The
two actions currently supported are:
- `reboot`
- `hello`

`hello` is a simple one used for testing, it sends "hello world".

`reboot` is used to create a message that contains the host's name and
the IP address of the network interface specified in the configuration
file.

1 files changed, 27 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..29145b8
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,27 @@
+use serde::Deserialize;
+use std::path::PathBuf;
+
+#[derive(Deserialize, Debug)]
+pub struct Config {
+    pub to: String,
+    pub from: String,
+    pub account_sid: String,
+    pub auth_token: String,
+    pub reboot: RebootConfig,
+    pub hello: HelloConfig,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct RebootConfig {
+    pub ifname: String,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct HelloConfig {}
+
+impl Config {
+    pub fn load_from_file(filename: &PathBuf) -> std::io::Result<Config> {
+        let content = std::fs::read_to_string(filename)?;
+        Ok(toml::from_str(&content)?)
+    }
+}