bin/ovr: srcfix: Move code to function

This will allow adding a --no-alt mode that doesn't use the alternate
screen.

Signed-off-by: Alejandro Colomar <alx@kernel.org>

1 files changed, 17 insertions, 12 deletions

diff --git a/bin/ovr b/bin/ovr
index d9306fc..f6e1178 100755
--- a/bin/ovr
+++ b/bin/ovr
@@ -10,6 +10,22 @@ err()
 }
 
 
+ovr_alt()
+{
+	permanent=;
+
+	enter() { tput smcup; } >/dev/tty;
+	leave() { tput rmcup; } >/dev/tty;
+
+	trap leave QUIT TERM;
+
+	enter;
+	permanent="$(tee /dev/tty | tail -n "$n"; echo x)";
+	leave;
+	printf '%s' "${permanent%x}";
+}
+
+
 n=1
 while test $# -ge 1; do
 	case "$1" in
@@ -30,15 +46,4 @@ while test $# -ge 1; do
 	shift;
 done;
 
-
-permanent=;
-
-enter() { tput smcup; } >/dev/tty;
-leave() { tput rmcup; } >/dev/tty;
-
-trap leave QUIT TERM;
-
-enter;
-permanent="$(tee /dev/tty | tail -n "$n"; echo x)";
-leave;
-printf '%s' "${permanent%x}";
+ovr_alt;