Add -c / --config argument to eww daemon (#104)

src/main.rs

@@ -82,7 +82,7 @@ fn main() {
                 }
             }
 
-            opts::Action::Daemon => {
+            opts::Action::Daemon { config } => {
                 // make sure that there isn't already a Eww daemon running.
                 if check_server_running(&*IPC_SOCKET_PATH) {
                     eprintln!("Eww server already running.");
@@ -90,8 +90,10 @@ fn main() {
                 } else {
                     log::info!("Initializing Eww server.");
                     let _ = std::fs::remove_file(&*crate::IPC_SOCKET_PATH);
+
                     println!("Run `eww logs` to see any errors, warnings or information while editing your configuration.");
-                    server::initialize_server()?;
+                    server::initialize_server(config)?;
+
                 }
             }
         }

src/opts.rs

@@ -29,7 +29,11 @@ struct RawOpt {
 pub enum Action {
     /// Start the Eww daemon.
     #[structopt(name = "daemon")]
-    Daemon,
+    Daemon {
+        /// Custom Config Path
+        #[structopt(short, long)]
+        config: Option<std::path::PathBuf>,
+    },
 
     #[structopt(flatten)]
     ClientOnly(ActionClientOnly),

src/server.rs

@@ -8,7 +8,7 @@ use std::{
 };
 use tokio::sync::mpsc::*;
 
-pub fn initialize_server() -> Result<()> {
+pub fn initialize_server(config_dir_override: Option<std::path::PathBuf>) -> Result<()> {
     do_detach()?;
 
     simple_signal::set_handler(&[simple_signal::Signal::Int, simple_signal::Signal::Term], move |_| {
@@ -20,7 +20,8 @@ pub fn initialize_server() -> Result<()> {
     });
     let (ui_send, mut ui_recv) = tokio::sync::mpsc::unbounded_channel();
 
-    let config_file_path = crate::CONFIG_DIR.join("eww.xml");
+    let config_file_path = config_dir_override.unwrap_or(crate::CONFIG_DIR.join("eww.xml")); 
+
     let config_dir = config_file_path
         .parent()
         .context("config file did not have a parent?!")?