opkg-build: simplify date calculation

Avoid an integer to string conversion (and back) by directly supplying
the Unix time as an integer to -mtime.

Fixes bugzilla# 12580

Signed-off-by: Alejandro del Castillo <alejandro.delcastillo@ni.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/opkg-build b/opkg-build
index 0d3ca23..69e3f40 100755
--- a/opkg-build
+++ b/opkg-build
@@ -291,11 +291,11 @@ fi
 tmp_dir=$dest_dir/IPKG_BUILD.$$
 mkdir $tmp_dir
 
-build_date="$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" "+%Y-%m-%d %H:%M:%S")"
+build_date="${SOURCE_DATE_EPOCH:-$(date +%s)}"
 
 echo $CONTROL > $tmp_dir/tarX
-( cd $pkg_dir && tar $ogargs $tsortargs --mtime="$build_date" -X $tmp_dir/tarX -c $tarformat . | $compressor $compressorargs > $tmp_dir/data.tar.$cext )
-( cd $pkg_dir/$CONTROL && tar $ogargs $tsortargs --mtime="$build_date" -c $tarformat . | gzip $zipargs > $tmp_dir/control.tar.gz )
+( cd $pkg_dir && tar $ogargs $tsortargs --mtime=@$build_date -X $tmp_dir/tarX -c $tarformat . | $compressor $compressorargs > $tmp_dir/data.tar.$cext )
+( cd $pkg_dir/$CONTROL && tar $ogargs $tsortargs --mtime=@$build_date -c $tarformat . | gzip $zipargs > $tmp_dir/control.tar.gz )
 rm $tmp_dir/tarX
 
 echo "2.0" > $tmp_dir/debian-binary
@@ -310,7 +310,7 @@ rm -f $pkg_file
 if [ "$outer" = "ar" ] ; then
   ( cd $tmp_dir && ar -crfD $pkg_file ./debian-binary ./control.tar.gz ./data.tar.$cext )
 else
-  ( cd $tmp_dir && tar -c $tsortargs --mtime="$build_date" $tarformat ./debian-binary ./control.tar.gz ./data.tar.$cext | gzip $zipargs > $pkg_file )
+  ( cd $tmp_dir && tar -c $tsortargs --mtime=@$build_date $tarformat ./debian-binary ./control.tar.gz ./data.tar.$cext | gzip $zipargs > $pkg_file )
 fi
 
 rm $tmp_dir/debian-binary $tmp_dir/data.tar.$cext $tmp_dir/control.tar.gz