From 8823bef7c1db8f53c024fad0e48f52b2204addc0 Mon Sep 17 00:00:00 2001
From: a-kenji <aks.kenji@protonmail.com>
Date: Wed, 21 Apr 2021 15:26:05 +0200
Subject: [PATCH] Add ZELLIJ Environment Varable on startup(#304)

Makes it easy and flexible to check
whether zellij is already running.

This carries no further information
for now and is initialised to `0`.

closes 304.
---
 src/common/mod.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/common/mod.rs b/src/common/mod.rs
index e2cd2220..1a26e108 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -16,6 +16,7 @@ use std::thread;
 use std::{collections::HashMap, fs};
 use std::{
     collections::HashSet,
+    env,
     io::Write,
     str::FromStr,
     sync::{Arc, Mutex},
@@ -128,6 +129,8 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs) {
         .write(take_snapshot.as_bytes())
         .unwrap();
 
+    env::set_var(&"ZELLIJ", "0");
+
     let config = Config::from_cli_config(opts.config, opts.option)
         .map_err(|e| {
             eprintln!("There was an error in the config file:\n{}", e);