Daemonize

Cargo.lock

@@ -982,6 +982,7 @@ version = "0.1.0"
 dependencies = [
  "cosmic-text 0.10.0",
  "env_logger",
+ "fork",
  "i18n-embed",
  "i18n-embed-fl",
  "lazy_static",
@@ -1837,6 +1838,15 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa9a19cbb55df58761df49b23516a86d432839add4af60fc256da840f66ed35b"
 
+[[package]]
+name = "fork"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf2ca97a59201425e7ee4d197c9c4fea282fe87a97d666a580bda889b95b8e88"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.0"

Cargo.toml

@@ -7,6 +7,7 @@ license = "GPL-3.0-only"
 
 [dependencies]
 env_logger = "0.10.0"
+fork = "0.1"
 lazy_static = "1.4.0"
 log = "0.4.20"
 notify = "6.1.1"

src/main.rs

@@ -60,6 +60,15 @@ lazy_static::lazy_static! {
 }
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    match fork::daemon(false, false) {
+        Ok(fork::Fork::Child) => (),
+        Ok(fork::Fork::Parent(_child_pid)) => process::exit(0),
+        Err(err) => {
+            eprintln!("failed to daemonize: {:?}", err);
+            process::exit(1);
+        }
+    }
+    
     env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("warn")).init();
 
     localize::localize();