#!/bin/bash

#
# Start an edit session for packages to be upgraded - pre upgrade version
#

# For backward compatibility.  Old repo location or new?
CENTOS_REPO=${MY_REPO}/centos-repo
if [ ! -d ${CENTOS_REPO} ]; then
    CENTOS_REPO=${MY_REPO}/cgcs-centos-repo
    if [ ! -d ${CENTOS_REPO} ]; then
        echo "ERROR: directory ${MY_REPO}/centos-repo not found."
        exit 1
    fi
fi

usage () {
    echo ""
    echo "Step 1: Start an edit session for packages to be upgraded - pre upgrade version"
    echo ""
    echo "Usage: "
    echo "   patch_rebase_1 [--origin_branch <branch>] [--working_branch <branch>] [--upversion_data <file>]"
    echo ""
    echo "Assumes $(basename ${CENTOS_REPO}) already has a working_branch commit that sets the new symlinks."
    echo ""
    echo "The upversion_data file has data on all the src.rpm being updated in the format:"
    echo "  export UPVERSION_DATA=$MY_WORKSPACE/upversion.log"
    echo "  PKG=lighttpd"
    echo "  OLD_SRC_RPM=lighttpd-1.4.41-1.el7.src.rpm"
    echo "  NEW_SRC_RPM=lighttpd-1.4.41-2.el7.src.rpm"
    echo "  SRPM_PATH=$MY_REPO/stx/integ/extended/lighttpd/centos/srpm_path"
    echo "  echo \"\$PKG#\$SRPM_PATH##\$OLD_SRC_RPM#\$NEW_SRC_RPM\" > UPVERSION_DATA"
    echo ""
}

TEMP=`getopt -o h --long origin_branch:,working_branch:,upversion_data:,help -n 'test.sh' -- "$@"`
eval set -- "$TEMP"

ORIGIN_BRANCH=""
WORKING_BRANCH=""
UPVERSION_LOG=""
HELP=0

while true ; do
    case "$1" in
        --origin_branch)  shift ; ORIGIN_BRANCH="$1" ; shift ;;
        --working_branch) shift ; WORKING_BRANCH="$1" ; shift ;;
        --upversion_data) shift ; UPVERSION_LOG="$1" ; shift ;;
        -h|--help)        HELP=1 ; shift ;;
        --)               shift ; break ;;
        *)                usage; exit 1 ;;
    esac
done

if [ $HELP -eq 1 ]; then
    usage
    exit 0
fi

if [ "$UPVERSION_LOG" == "" ]; then
   UPVERSION_LOG=$UPVERSION_DATA
fi

if [ "$UPVERSION_LOG" == "" ]; then
   echo "ERROR: please specify location of upversion data"
   usage
   exit 1
fi

if [ ! -f "$UPVERSION_LOG" ]; then
   echo "File not found: '$UPVERSION_LOG'"
   exit 1
fi

if [ "$ORIGIN_BRANCH" == "" ] && [ "$WORKING_BRANCH" == "" ]; then
   ORIGIN_BRANCH=$PATCH_SOURCE_BRANCH
   WORKING_BRANCH=$MY_PATCH_BRANCH
fi

if [ "$ORIGIN_BRANCH" == "" ] && [ "$WORKING_BRANCH" == "" ]; then
   ORIGIN_BRANCH=$SOURCE_BRANCH
   WORKING_BRANCH=$MY_BRANCH
fi

if [ "$ORIGIN_BRANCH" == "" ]; then
   echo "ERROR: please specify a origin branch"
   usage
   exit 1
fi

if [ "$WORKING_BRANCH" == "" ]; then
   echo "ERROR: please specify a working branch"
   usage
   exit 1
fi

# One step back to see the old symlinks
cd ${CENTOS_REPO}
git checkout $WORKING_BRANCH
if [ $? != 0 ]; then
   echo "ERROR: Can't checkout branch '$WORKING_BRANCH' in directory '$(pwd)'"
   exit 1
fi

git checkout HEAD^

FAILED=""
for dat in $(cat $UPVERSION_LOG); do
   name=$(echo $dat | awk -F '#' '{print $1}')
   srpm_path=$(echo $dat | awk -F '#' '{print $2}')
   old_src_rpm=$(echo $dat | awk -F '#' '{print $4}')
   new_src_rpm=$(echo $dat | awk -F '#' '{print $5}')

   echo "$name  $old_src_rpm  $new_src_rpm"

   build-pkgs --edit --clean $name
   if [ $? -ne 0 ]; then
      echo "ERROR: failed cmd 'build-pkgs --edit --clean $name'"
      FAILED="$name $FAILED"
      break
   fi
   echo "$?   <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"
   build-pkgs --edit $name
   if [ $? -ne 0 ]; then
      echo "ERROR: failed cmd 'build-pkgs --edit $name'"
      FAILED="$name $FAILED"
      break
   fi
   echo "$?   <=<=<=<=<=<=<=<=<=<=<=<=<=<=<=<="
done

cd ${CENTOS_REPO}
git checkout $WORKING_BRANCH

if [ "$FAILED" != "" ]; then
   echo "Failed build-pkgs --edit for ... $FAILED"
   exit 1
fi