#!/bin/bash -

set -e

# Maintainer script to copy patches from the git repo to the current

# directory.  Use it like this:

#   ./copy-patches.sh

rhel_version=8.6

# Check we're in the right directory.

if [ ! -f libnbd.spec ]; then

    echo "$0: run this from the directory containing 'libnbd.spec'"

    exit 1

fi

git_checkout=$HOME/d/libnbd-rhel-$rhel_version

if [ ! -d $git_checkout ]; then

    echo "$0: $git_checkout does not exist"

    echo "This script is only for use by the maintainer when preparing a"

    echo "libnbd release on RHEL."

    exit 1

fi

# Get the base version of libnbd.

version=`grep '^Version:' libnbd.spec | awk '{print $2}'`

tag="v$version"

# Remove any existing patches.

git rm -f [0-9]*.patch ||:

rm -f [0-9]*.patch

# Get the patches.

(cd $git_checkout; rm -f [0-9]*.patch; git format-patch -N $tag)

mv $git_checkout/[0-9]*.patch .

# Remove any not to be applied.

rm -f *NOT-FOR-RPM*.patch

# Add the patches.

git add [0-9]*.patch

# Print out the patch lines.

echo

echo "--- Copy the following text into libnbd.spec file"

echo

echo "# Patches."

for f in [0-9]*.patch; do

    n=`echo $f | awk -F- '{print $1}'`

    echo "Patch$n:     $f"

done

echo

echo "--- End of text"