From b4a252a3916ab342b289331fbf49aa2db73df579 Mon Sep 17 00:00:00 2001
From: sharkdp <davidpeter@web.de>
Date: Fri, 12 May 2017 22:50:52 +0200
Subject: [PATCH] Detect interactive terminal, closes #11

---
 Cargo.lock  | 12 ++++++++++++
 Cargo.toml  |  1 +
 src/main.rs | 17 ++++++++++-------
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 0d86bb0..9069a4f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,6 +4,7 @@ version = "0.1.0"
 dependencies = [
  "ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "isatty 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -26,6 +27,16 @@ name = "getopts"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "isatty"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -134,6 +145,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
 "checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
 "checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
+"checksum isatty 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fa500db770a99afe2a0f2229be2a3d09c7ed9d7e4e8440bf71253141994e240f"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum libc 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)" = "babb8281da88cba992fa1f4ddec7d63ed96280a1a53ec9b919fd37b53d71e502"
 "checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
diff --git a/Cargo.toml b/Cargo.toml
index 8703b9f..21a832b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,3 +8,4 @@ getopts = "0.2"
 regex = "0.2"
 walkdir = "1"
 ansi_term = "0.9"
+isatty = "0.1"
diff --git a/src/main.rs b/src/main.rs
index f7945cd..10716ee 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,8 @@
-extern crate walkdir;
-extern crate regex;
-extern crate getopts;
 extern crate ansi_term;
+extern crate getopts;
+extern crate isatty;
+extern crate regex;
+extern crate walkdir;
 
 use std::env;
 use std::error::Error;
@@ -10,10 +11,11 @@ use std::io::Write;
 use std::path::Path;
 use std::process;
 
-use walkdir::{WalkDir, DirEntry, WalkDirIterator};
-use regex::{Regex, RegexBuilder};
-use getopts::Options;
 use ansi_term::Colour;
+use getopts::Options;
+use isatty::stdout_isatty;
+use regex::{Regex, RegexBuilder};
+use walkdir::{WalkDir, DirEntry, WalkDirIterator};
 
 struct FdOptions {
     case_sensitive: bool,
@@ -130,7 +132,8 @@ fn main() {
                            pattern.chars().any(char::is_uppercase),
         search_full_path: !matches.opt_present("filename"),
         search_hidden:     matches.opt_present("hidden"),
-        colored:          !matches.opt_present("no-color"),
+        colored:          !matches.opt_present("no-color") &&
+                           stdout_isatty(),
         follow_links:      matches.opt_present("follow"),
         max_depth:
             matches.opt_str("max-depth")