Check if stdout is a terminal in lxc-checkconfig

Let lxc-checkconfig write to non-tty stdout without color control characters Signed-off-by: walkerning <foxdoraame@gmail.com>

Check if stdout is a terminal in lxc-checkconfig
2e6f9014 · walkerning · Stéphane Graber · 5a537be5 · 2e6f9014
Commit 2e6f9014 authored May 01, 2016 by walkerning Committed by Stéphane Graber May 11, 2016
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Showing with 11 additions and 4 deletions

lxc-checkconfig.in src/lxc/lxc-checkconfig.in +11 -4

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--- a/src/lxc/lxc-checkconfig.in
+++ b/src/lxc/lxc-checkconfig.in
@@ -6,10 +6,17 @@

 CAT="cat"

-SETCOLOR_SUCCESS="printf \\033[1;32m"
-SETCOLOR_FAILURE="printf \\033[1;31m"
-SETCOLOR_WARNING="printf \\033[1;33m"
-SETCOLOR_NORMAL="printf \\033[0;39m"
+if [ -t 1 ]; then
+    SETCOLOR_SUCCESS="printf \\033[1;32m"
+    SETCOLOR_FAILURE="printf \\033[1;31m"
+    SETCOLOR_WARNING="printf \\033[1;33m"
+    SETCOLOR_NORMAL="printf \\033[0;39m"
+else
+    SETCOLOR_SUCCESS=":"
+    SETCOLOR_FAILURE=":"
+    SETCOLOR_WARNING=":"
+    SETCOLOR_NORMAL=":"
+fi

 is_set() {
    $CAT $CONFIG | grep "$1=[y|m]" > /dev/null