rpcgen: Remove autogenerated files instead build on demand

Avoid modifying autogenerated files and keeping them in
repository - autogenerate them on demand from ".x" files

Change-Id: I2cdb1fe9b99768ceb80a8cb100fa00bd1d8fe2c6
BUG: 1090807
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/7526
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/build-aux/xdrgen b/build-aux/xdrgen
new file mode 100755
index 000000000..dd5571baa
--- /dev/null
+++ b/build-aux/xdrgen
@@ -0,0 +1,93 @@
+#!/bin/sh
+
+_init ()
+{
+    xfile="$1";
+
+    cfile="${1%.x}.c";
+    hfile="${1%.x}.h";
+
+    tmp_cfile="$1.c";
+
+    tmp1_hfile="$1.h.tmp";
+    tmp1_cfile="$1.c.tmp";
+
+}
+
+append_licence_header ()
+{
+    src_file=$1;
+    dst_file=$2;
+
+    cat >$dst_file <<EOF
+/*
+  Copyright (c) 2007-2014 Red Hat, Inc. <http://www.redhat.com>
+  This file is part of GlusterFS.
+
+  This file is licensed to you under your choice of the GNU Lesser
+  General Public License, version 3 or any later version (LGPLv3 or
+  later), or the GNU General Public License, version 2 (GPLv2), in all
+  cases as published by the Free Software Foundation.
+*/
+
+#include "compat.h"
+#include "xdr-common.h"
+#include "xdr-nfs3.h"
+
+#if defined(__GNUC__)
+#if __GNUC__ >= 4
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#endif
+#endif
+
+EOF
+
+    cat $src_file >> $dst_file;
+
+}
+
+main ()
+{
+    if [ $# -ne 1 ]; then
+        echo "wrong number of arguments given"
+        echo " $0 <XDR-definition-file>.x"
+        exit 1;
+    fi
+
+
+    echo -n "writing the XDR routine file ($tmp_cfile) ...  ";
+    rm -f $tmp_cfile;
+    rpcgen -c -o $tmp_cfile $xfile;
+
+    echo "OK";
+
+    # no need for a temporary file here as there are no changes from glusterfs
+    echo -n "writing the XDR header file ($hfile) ...  ";
+    rm -f $hfile;
+    rpcgen -h -o $hfile $xfile;
+
+    # the '#ifdef' part of file should be fixed
+    sed -i -e 's/-/_/g' $hfile;
+
+    echo "OK";
+
+    echo -n "writing licence header to the generated files ... ";
+    # Write header to temp file and append generated file
+    append_licence_header $hfile $tmp1_hfile;
+    append_licence_header $tmp_cfile $tmp1_cfile;
+    echo "OK"
+
+    # now move the destination file to actual original file
+    echo -n "updating existing files ... ";
+    mv $tmp1_hfile $hfile;
+    mv $tmp1_cfile $cfile;
+
+    # remove unwanted temporary files (if any)
+    rm -f $tmp_cfile $tmp1_cfile $tmp1_hfile
+
+    echo "OK"
+
+}
+
+_init "$@" && main "$@";