#!/bin/sh
files="/var/www/html/Fedora/local/SRPMS.x86_64/*.rpm" # obtain files from directory listing
#files=`cat local_source_rpms`  # obtain files from local_source_rpms file
for file in ${files}
do

# install the source rpm
rpm -i $file  # use if files obtained from directory listing
#rpm -i /var/www/html/Fedora/local/SRPMS.x86_64/$file #use if files obtained from a file

# obtain the spec file name from source rpm
file1=`basename $file .src.rpm`
file2=${file1%-*}
file3=${file2%-*}

# find the release number from the spec file (should be a number)
rel_old0=`grep Release /root/rpmbuild/SPECS/$file3.spec | cut -c 10-`
# take out the extension i.e. fc39
rel_old=${rel_old0%.*}

# increment the release number
rel_new=$(bc -q<<EOF
$rel_old+1
EOF
)

# replace the old release number with new one in spec file
sed -e "s#$rel_old0#$rel_new.fc40#g" \
  < /root/rpmbuild/SPECS/$file3.spec > /root/rpmbuild/SPECS/$file3.spec.new
mv -f /root/rpmbuild/SPECS/$file3.spec.new /root/rpmbuild/SPECS/$file3.spec

# build the new rpm package and write the output to /var/tmp/spec_name.log
echo building $file3 package with release $rel_new ......
rpmbuild -ba /root/rpmbuild/SPECS/$file3.spec > /var/tmp/$file3.log 2> /var/tmp/$file3.log

# remove the debuginfo package
rm -f /root/rpmbuild/RPMS/x86_64/*debug*
rm -f /root/rpmbuild/RPMS/noarch/*debug*

# install the package
# rpm -Uvh /root/rpmbuild/RPMS/x86_64/$file3*

done