Merge pull request 'mode silent with -q to hide non error messages' (#1) from silent_mode into hacker

Reviewed-on: #1

pkgupdate

@@ -4,8 +4,17 @@ INSTALLURL=$(grep -v ^# /etc/installurl | head -n 1)
 export PKG_PATH="${INSTALLURL}/$(uname -r)/packages-stable/$(machine)/"
 
 CACHE_DIR=/var/cache/pkgupdate/
+SILENT=0
 
 
+# hide output if SILENT is activated
+silent() {
+    if [ "$SILENT" -eq 0 ]
+    then
+        echo "$1"
+    fi
+}
+
 # curl can only be used for http:// , it's quite complicated with https://
 # due to the way pkg_add calls $FETCH_CMD
 def_curl() {
@@ -38,7 +47,7 @@ check_cache() {
             if cmp ${CACHE_DIR}/index.now ${CACHE_DIR}/index.previous
             then
                 rm ${CACHE_DIR}/index.now
-                echo "No changes on the mirror."
+                silent "No changes on the mirror."
                 exit 0
             else
                 mv ${CACHE_DIR}/index.now ${CACHE_DIR}/index.previous
@@ -51,7 +60,7 @@ check_cache() {
 }
 
 do_http() {
-    echo "Updating using $1 protocol"
+    silent "Updating using $1 protocol"
     check_cache
     def_curl
     pkg_add -u 2>&1 | grep -v "^Couldn't find updates for "
@@ -86,6 +95,11 @@ then
     exit 1
 fi
 
+if [ "$1" = "-q" ]
+then
+    SILENT=1
+fi
+
 case "$INSTALLURL" in
 	http://*) do_http "http://"
 		;;