feat: add daemonize to fork off

Cargo.lock

@@ -345,6 +345,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "daemonize"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab8bfdaacb3c887a54d41bdf48d3af8873b3f5566469f8ba21b92057509f116e"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "derivative"
 version = "2.2.0"
@@ -1123,6 +1132,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "clap",
+ "daemonize",
  "humantime",
  "notify-rust",
  "serde",

Cargo.toml

@@ -8,6 +8,7 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0.71"
 clap = { version = "4.3.4", features = ["derive"] }
+daemonize = "0.5.0"
 humantime = "2.1.0"
 notify-rust = "4.8.0"
 serde = { version = "1.0.164", features = ["derive"] }

src/main.rs

@@ -1,8 +1,8 @@
 mod cli;
 mod daemon;
+mod notification;
 mod pomodoro;
 mod timer;
-mod notification;
 
 use crate::cli::{send_command, Cli, Command as CliCommand};
 use crate::daemon::{Command as DaemonCommand, Daemon};
@@ -12,7 +12,10 @@ use cli::PomodoroCommand;
 fn main() -> Result<(), anyhow::Error> {
     let args = Cli::parse();
     let daemon_command = match args.command {
-        CliCommand::Daemon { no_notify } => return Daemon::new(args.socket, no_notify)?.run(),
+        CliCommand::Daemon { no_notify } => {
+            daemonize::Daemonize::new().start()?;
+            return Daemon::new(args.socket, no_notify)?.run();
+        }
         CliCommand::Add { name, duration } => {
             DaemonCommand::Add(name.into_boxed_str(), duration.into())
         }