From 427baf1491fb05a7a8996da5f392d09af2802925 Mon Sep 17 00:00:00 2001
From: Ethan P <eth-p+git@hidden.email>
Date: Sat, 2 May 2020 16:58:17 -0700
Subject: [PATCH] lib: Add term.sh to more accurately get terminal width

---
 lib/opt_hook_width.sh |  3 ++-
 lib/term.sh           | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 lib/term.sh

diff --git a/lib/opt_hook_width.sh b/lib/opt_hook_width.sh
index 94e2229..2eb9390 100644
--- a/lib/opt_hook_width.sh
+++ b/lib/opt_hook_width.sh
@@ -5,6 +5,7 @@
 # Repository: https://github.com/eth-p/bat-extras
 # Issues:     https://github.com/eth-p/bat-extras/issues
 # -----------------------------------------------------------------------------
+source "${LIB}/term.sh"
 
 # Option parser hook: --terminal-width support.
 # This will accept --terminal-width=number.
@@ -23,5 +24,5 @@ hook_width() {
 	}
 
 	# Default terminal width.
-	OPT_TERMINAL_WIDTH="$({ stty size 2>/dev/null || echo "22 80"; } | cut -d' ' -f 2)"
+	OPT_TERMINAL_WIDTH="$(term_width)"
 }
diff --git a/lib/term.sh b/lib/term.sh
new file mode 100644
index 0000000..d4ca2ac
--- /dev/null
+++ b/lib/term.sh
@@ -0,0 +1,27 @@
+# -----------------------------------------------------------------------------
+# bat-extras | Copyright (C) 2020 eth-p | MIT License
+#
+# Repository: https://github.com/eth-p/bat-extras
+# Issues:     https://github.com/eth-p/bat-extras/issues
+# -----------------------------------------------------------------------------
+
+# Gets the width of the terminal.
+# This will return 80 unless stdin is attached to the terminal.
+#
+# Returns:
+#     The terminal width, or 80 if there's no TTY.
+#
+term_width() {
+	if ! [[ -t 0 ]]; then
+		echo "80"
+		return 0
+	fi
+
+	# shellcheck disable=SC2155
+	local width="$(stty size 2>/dev/null | cut -d' ' -f2)"
+	if [[ -z "$width" ]]; then
+		echo "80"
+	else
+		echo  "$width"
+	fi
+}