abuild-keygen: implement -q for quiet mode

abuild-keygen.in

@@ -15,6 +15,12 @@ abuild_conf=${ABUILD_CONF:-"$sysconfdir/abuild.conf"}
 abuild_home=${ABUILD_USERDIR:-"$HOME/.abuild"}
 abuild_userconf=${ABUILD_USERCONF:-"$abuild_home/abuild.conf"}
 
+# echo message unless quite mode
+msg() {
+	[ -n "$quiet" ] && return 0
+	echo "$@"
+}
+
 # ask for privkey unless non-interactive mode
 # returns value in global $privkey
 get_privkey_file() {
@@ -29,6 +35,7 @@ get_privkey_file() {
 	fi
 }
 
+# print usage and exit
 usage() {
 	echo "abuild-keygen $abuild_ver"
 	echo "usage: abuild-keygen [-ih]"
@@ -37,6 +44,7 @@ usage() {
 	echo " -i  Install public key into /etc/apk/keys using sudo"
 	echo " -h  Show this help"
 	echo " -n  Non-interactive. Use defaults"
+	echo " -q  Quiet mode"
 	echo ""
 	exit 1
 }
@@ -61,12 +69,13 @@ else
 	default_name="$USER-$(printf "%x" $(date +%s))"
 fi
 
-while getopts "ahin" opt; do
+while getopts "ahinq" opt; do
 	case $opt in
 	a) append_config=yes;;
 	h) usage;;
 	i) install_pubkey=yes;;
 	n) non_interactive=yes;;
+	q) quiet=-quiet;;
 	esac
 done
 shift $(( $OPTIND - 1))
@@ -85,15 +94,15 @@ openssl rsa -in "$privkey" -pubout -out "$pubkey"
 
 
 if [ -n "$install_pubkey" ]; then
-	echo "Installing $pubkey to /etc/apk/keys..."
+	msg "Installing $pubkey to /etc/apk/keys..."
 	sudo mkdir -p /etc/apk/keys
 	sudo cp -i "$pubkey" /etc/apk/keys/
 else
 
-	echo ""
-	echo "You'll need to install $pubkey into "
-	echo "/etc/apk/keys to be able to install packages and repositories signed with"
-	echo "$privkey"
+	msg ""
+	msg "You'll need to install $pubkey into "
+	msg "/etc/apk/keys to be able to install packages and repositories signed with"
+	msg "$privkey"
 fi
 
 if [ -n "$append_config" ]; then
@@ -103,15 +112,15 @@ if [ -n "$append_config" ]; then
 	fi
 	echo "PACKAGER_PRIVKEY=\"$privkey\"" >> "$abuild_userconf"
 else
-	echo ""
-	echo "You might want add following line to $abuild_userconf:"
-	echo ""
-	echo "PACKAGER_PRIVKEY=\"$privkey\""
-	echo ""
+	msg ""
+	msg "You might want add following line to $abuild_userconf:"
+	msg ""
+	msg "PACKAGER_PRIVKEY=\"$privkey\""
+	msg ""
 fi
 
-echo ""
-echo "Please remember to make a safe backup of your private key:"
-echo "$privkey"
-echo ""
+msg ""
+msg "Please remember to make a safe backup of your private key:"
+msg "$privkey"
+msg ""