Fix stty/tput usage for columns

This corrects the usage of stty and tput under various non-TTY conditions
such as under cron and redirected output.

[Aaron: Also corrected my USECOLOR bug I introduced last patch]

Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>

1 files changed, 32 insertions, 9 deletions

diff --git a/functions b/functions
index 96903b9..0f333d4 100644
--- a/functions
+++ b/functions
@@ -4,9 +4,28 @@
 
 # width:
 
-# disable color on output to non-tty
 STAT_COL=80
-USECOLOR=""
+if [ -t 1 ]; then
+  # stty will fail when stdin isn't a terminal (but we're in this block, so stdout is)
+  if [ -t 0 ]; then
+    STAT_COL="$(/bin/stty size)"
+    # stty gives "rows cols"; strip the rows number, we just want columns
+    STAT_COL="${STAT_COL##* }"
+  else
+    # tput will fail at boot time if /usr/share/terminfo isn't yet mounted
+    # or TERM is otherwise unrecognized
+    STAT_COL="$(/bin/tput cols 2>/dev/null)"
+  fi
+  if [ "0$STAT_COL" -eq 0 ]; then
+    # if output was 0 (serial console), set default width to 80
+    USECOLOR=""
+    STAT_COL=80
+  fi
+else
+  USECOLOR=""
+  STAT_COL=80
+fi
+
 if [ -t 1 ]; then
   STAT_COL=$(/bin/stty size)
   # strip the rows number, we just want columns
@@ -140,13 +159,17 @@ status() {
 #          1 - not found
 # Copied from makepkg
 in_array() {
-	local needle=$1; shift
-	[ -z "$1" ] && return 1 # Not Found
-	local item
-	for item in "$@"; do
-		[ "$item" = "$needle" ] && return 0 # Found
-	done
-	return 1 # Not Found
+  local needle=$1; shift
+  [ -z "$1" ] && return 1 # Not Found
+  local item
+  for item in "$@"; do
+    local c="${item:0:1}"
+    if [ "$c" == "!" -o "$c" == "@" ]; then
+      item="${item:1}"
+    fi
+    [ "$item" = "$needle" ] && return 0 # Found
+  done
+  return 1 # Not Found
 }
 
 # daemons: