From 53cde1c2b8981a710c1218ca4e977bbfcb9f8f1b Mon Sep 17 00:00:00 2001
From: Julian Ospald <hasufell@posteo.de>
Date: Fri, 15 Jun 2018 21:42:40 +0200
Subject: [PATCH] Deamonize nvim-gtk by default

--no-fork can be passed for normal behavior
---
 Cargo.lock  | 10 ++++++++++
 Cargo.toml  |  1 +
 src/main.rs | 19 +++++++++++++++++++
 3 files changed, 30 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index c495e8c..7266838 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -369,6 +369,7 @@ dependencies = [
  "toml 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unix-daemonize 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -677,6 +678,14 @@ name = "unicode-xid"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "unix-daemonize"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "unix_socket"
 version = "0.5.0"
@@ -803,6 +812,7 @@ dependencies = [
 "checksum unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a8083c594e02b8ae1654ae26f0ade5158b119bd88ad0e8227a5d8fcd72407946"
 "checksum unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3a113775714a22dcb774d8ea3655c53a32debae63a063acc00a91cc586245f"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
+"checksum unix-daemonize 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "531faed80732acaa13d1016c66d6a9180b5045c4fcef8daa20bb2baf46b13907"
 "checksum unix_socket 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6aa2700417c405c38f5e6902d699345241c28c0b7ade4abaad71e35a87eb1564"
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
diff --git a/Cargo.toml b/Cargo.toml
index 8f95b1b..4a481b8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,6 +36,7 @@ regex = "0.2"
 lazy_static = "1.0"
 unicode-width = "0.1.4"
 unicode-segmentation = "1.2.0"
+unix-daemonize = "0.1"
 
 serde = "1.0"
 serde_derive = "1.0"
diff --git a/src/main.rs b/src/main.rs
index c7e0c37..b083c9d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
 #![windows_subsystem = "windows"]
 
+extern crate unix_daemonize;
 extern crate cairo;
 extern crate env_logger;
 extern crate gdk;
@@ -63,6 +64,7 @@ mod file_browser;
 mod subscriptions;
 mod misc;
 
+use unix_daemonize::{daemonize_redirect, ChdirMode};
 use std::env;
 use std::io::Read;
 use std::cell::RefCell;
@@ -77,6 +79,7 @@ use shell::ShellOptions;
 const BIN_PATH_ARG: &str = "--nvim-bin-path";
 const TIMEOUT_ARG: &str = "--timeout";
 const DISABLE_WIN_STATE_RESTORE: &str = "--disable-win-restore";
+const NO_FORK: &str = "--no-fork";
 
 fn main() {
     env_logger::init();
@@ -108,7 +111,23 @@ fn main() {
         .filter(|a| !a.starts_with(BIN_PATH_ARG))
         .filter(|a| !a.starts_with(TIMEOUT_ARG))
         .filter(|a| !a.starts_with(DISABLE_WIN_STATE_RESTORE))
+        .filter(|a| !a.starts_with(NO_FORK))
         .collect();
+
+    // fork to background by default
+    let want_fork = env::args()
+        .take_while(|a| *a != "--")
+        .skip(1)
+        .find(|a| a.starts_with(NO_FORK))
+        .is_none();
+
+    if want_fork {
+        daemonize_redirect(Some("/tmp/nvim-gtk_stdout.log"),
+                Some("/tmp/nvim-gtk_stderr.log"),
+                ChdirMode::NoChdir)
+            .unwrap();
+    }
+
     app.run(&argv);
 }