config file and skeleton

src/config.rs

@@ -0,0 +1,48 @@
+use dirs;
+use log::warn;
+use serde::{Deserialize, Serialize};
+use std::{env, fs, path::PathBuf};
+
+use crate::PROGRAM_NAME;
+
+#[derive(Deserialize, Serialize, Debug)]
+pub struct Config {
+    pub cloudflare_zone_id: Box<str>,
+    pub cloudflare_api_key: Box<str>,
+}
+
+pub fn get_config_path() -> Option<PathBuf> {
+    match env::current_dir() {
+        Ok(current_dir) => {
+            let cwd_config = current_dir.join(format!("{}.toml", PROGRAM_NAME));
+            if let Ok(meta) = fs::metadata(&cwd_config) {
+                if meta.is_file() {
+                    return Some(cwd_config);
+                }
+            }
+        }
+        Err(e) => {
+            warn!("Failed to get current directory {:?}", &e);
+        }
+    }
+
+    match dirs::config_dir() {
+        Some(config_dir) => {
+            let config_file = config_dir.join(PROGRAM_NAME).join("config.toml");
+            if let Ok(meta) = fs::metadata(&config_file) {
+                if meta.is_file() {
+                    return Some(config_file);
+                }
+            }
+        }
+        None => {}
+    }
+
+    None
+}
+
+pub fn read_config(path: PathBuf) -> Option<Config>{
+
+
+    None
+}

src/lib.rs

@@ -0,0 +1,6 @@
+mod cloudflare;
+mod config;
+pub use config::{Config, get_config_path};
+
+
+pub const PROGRAM_NAME: &'static str = "dynip-cloudflare";

src/main.rs

@@ -7,6 +7,8 @@ use netlink_packet_route::RouteNetlinkMessage as RtnlMessage;
 use netlink_sys::{AsyncSocket, SocketAddr};
 use rtnetlink::new_connection;
 
+use dynip_cloudflare::{get_config_path, Config};
+
 const RTNLGRP_LINK: u32 = 1;
 const RTNLGRP_IPV4_IFADDR: u32 = 5;
 
@@ -24,6 +26,14 @@ const fn nl_mgrp(group: u32) -> u32 {
 #[tokio::main]
 async fn main() -> Result<()> {
     env_logger::init();
+    let config_path = match get_config_path() {
+        Some(cp) => cp,
+        None => {
+            error!("Failed to find any config file");
+            return Ok(());
+        }
+    };
+
     let (mut conn, mut _handle, mut messages) = new_connection().map_err(|e| anyhow!(e))?;
     let groups = nl_mgrp(RTNLGRP_LINK) | nl_mgrp(RTNLGRP_IPV4_IFADDR);