From 5bff4548be2575d82e8fd1df5e55aea122c82412 Mon Sep 17 00:00:00 2001
From: sharkdp <davidpeter@web.de>
Date: Thu, 11 Oct 2018 23:01:19 +0200
Subject: [PATCH] Add BAT_OPTS environment variable

---
 src/app.rs    | 7 ++++---
 src/config.rs | 4 ++++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/app.rs b/src/app.rs
index d5dd2b8f..fbe75cea 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -15,7 +15,7 @@ use console::Term;
 use ansi_term;
 
 use assets::BAT_THEME_DEFAULT;
-use config::get_args_from_config_file;
+use config::{get_args_from_config_file, get_args_from_env_var};
 use errors::*;
 use inputfile::InputFile;
 use line_range::LineRange;
@@ -104,8 +104,9 @@ impl App {
             let mut cli_args = wild::args_os();
 
             // Read arguments from bats config file
-            let mut args =
-                get_args_from_config_file().chain_err(|| "Could not parse configuration file")?;
+            let mut args = get_args_from_env_var()
+                .unwrap_or_else(|| get_args_from_config_file())
+                .chain_err(|| "Could not parse configuration file")?;
 
             // Put the zero-th CLI argument (program name) first
             args.insert(0, cli_args.next().unwrap());
diff --git a/src/config.rs b/src/config.rs
index b5833f5c..4ee40afd 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -17,6 +17,10 @@ pub fn get_args_from_config_file() -> Result<Vec<OsString>, shell_words::ParseEr
     .unwrap_or(vec![]))
 }
 
+pub fn get_args_from_env_var() -> Option<Result<Vec<OsString>, shell_words::ParseError>> {
+    env::var("BAT_OPTS").ok().map(|s| get_args_from_str(&s))
+}
+
 fn get_args_from_str<'a>(content: &'a str) -> Result<Vec<OsString>, shell_words::ParseError> {
     let args_per_line = content
         .split('\n')