daemonize on demand

Cargo.toml

@@ -9,6 +9,7 @@ edition = "2021"
 anyhow = "1.0.86"
 clap = { version = "4.5.16", features = ["derive"] }
 ctrlc = { version = "3.4.5", features = ["termination"] }
+daemonize = "0.5.0"
 env_logger = "0.11.5"
 fs-tail = "0.1.4"
 log = "0.4.22"

src/cli.rs

@@ -8,10 +8,14 @@ pub struct List {
 #[derive(Debug, clap::Parser)]
 pub struct Serve {
     /// Path to the unix socket to serve
+    #[arg(long = "socket")]
     pub unix_socket: Option<String>,
     /// Storage directory
     #[arg(short = 'd', long = "dir")]
     pub dir: Option<String>,
+    /// Daemonize on startup
+    #[arg(long = "daemonize")]
+    pub daemonize: bool,
 }
 
 #[derive(Debug, clap::Parser)]

src/serve.rs

@@ -18,6 +18,7 @@ use std::{
 
 use crate::{cli, msg, utils};
 use anyhow::{Context, Result};
+use daemonize::Daemonize;
 
 /// A trace ID, used to coordinate logs/traces from multiple processes.
 #[derive(Clone, Debug, Eq, PartialEq, Hash)]
@@ -244,6 +245,10 @@ fn cleaner_thread(st: Arc<State>) {
 }
 
 pub fn run(cli: cli::Serve) -> Result<()> {
+    if cli.daemonize {
+        Daemonize::new().start().context("daemonizing")?;
+    }
+
     let dir: PathBuf = match cli.dir {
         None => {
             let xdg = xdg::BaseDirectories::with_prefix(utils::XDG_PREFIX)?;