[PATCH] guilt-refresh: Check color.ui git config before refresh

If color.ui configuration is set to "always", git will include escape characters
even during output redirection. It will create bad-formatted patches trashing
the guilt patch stack

Signed-off-by: Carlos Maiolino <[email protected]>
[jeffpc: quote arg in `[` to avoid malformed command]
Signed-off-by: Josef 'Jeff' Sipek <[email protected]>

Author: cmaiolino

Diff for: guilt-refresh

@@ -4,13 +4,22 @@
 #
 
 USAGE="[--git] [--diffstat]"
+COLOR=`git config --get color.ui`
+
 if [ -z "$GUILT_VERSION" ]; then
 	echo "Invoking `basename "$0"` directly is no longer supported." >&2
 	exit 1
 fi
 
 _main() {
 
+if [ "$COLOR" = "always" ]; then
+	echo "git color.ui=always is unsupported because"
+	echo "escape characters will be redirected"
+	echo "please set it to color.ui=auto"
+	exit 1
+fi
+
 while [ $# -gt 0 ]; do
 	case "$1" in
 		--git)