#!/bin/bash -

set -e

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

# directory.  It's normally only used downstream (ie. in RHEL).  Use

# it like this:

#   ./copy-patches.sh

project=libguestfs

rhel_version=9.0.0

# Check we're in the right directory.

if [ ! -f $project.spec ]; then

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

    exit 1

fi

case `id -un` in

    rjones) git_checkout=$HOME/d/$project-rhel-$rhel_version ;;

    lacos)  git_checkout=$HOME/src/v2v/$project ;;

    *)      git_checkout=$HOME/d/$project-rhel-$rhel_version ;;

esac

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 "$project release on RHEL."

    exit 1

fi

# Get the base version of the project.

version=`grep '^Version:' $project.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 -c core.abbrev=9 format-patch -O/dev/null -N --submodule=diff $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 $project.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"