make.sh: Avoid calling date when determining elapsed seconds

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/make.sh b/make.sh
index ed8cd260edfb668c139615392e5d03aa643f8299..cb11b36ab03f0a378241ac092d9481747c5a4d7d 100755 (executable)
--- a/make.sh
+++ b/make.sh
@@ -295,10 +295,6 @@ stdumount() {
        umount $BASEDIR/build/tmp               2>/dev/null;
 }
 
-now() {
-       date -u "+%s"
-}
-
 format_runtime() {
        local seconds=${1}
 
@@ -741,7 +737,7 @@ ipfiredist() {
 wait_until_finished() {
        local pid=${1}
 
-       local start_time=$(now)
+       local start_time="${SECONDS}"
 
        # Show progress
        if ${INTERACTIVE}; then
@@ -751,7 +747,7 @@ wait_until_finished() {
 
                local runtime
                while kill -0 ${pid} 2>/dev/null; do
-                       print_runtime $(( $(now) - ${start_time} ))
+                       print_runtime $(( SECONDS - start_time ))
 
                        # Wait a little
                        sleep 1
@@ -763,7 +759,7 @@ wait_until_finished() {
        local ret=$?
 
        if ! ${INTERACTIVE}; then
-               print_runtime $(( $(now) - ${start_time} ))
+               print_runtime $(( SECONDS - start_time ))
        fi
 
        return ${ret}
@@ -1831,7 +1827,7 @@ done
 # See what we're supposed to do
 case "$1" in
 build)
-       START_TIME=$(now)
+       START_TIME="${SECONDS}"
 
        # Clear screen
        ${INTERACTIVE} && clear
@@ -1876,7 +1872,7 @@ build)
        tools/checkrootfiles
        cd $PWD
 
-       print_build_summary $(( $(now) - ${START_TIME} ))
+       print_build_summary $(( SECONDS - START_TIME ))
        ;;
 shell)
        # enter a shell inside LFS chroot