#!/bin/bash
#
# SPDX-FileCopyrightText: 2017, 2020-2022 The LineageOS Project
# SPDX-FileCopyrightText: 2021-2022 The Calyx Institute
#
# SPDX-License-Identifier: Apache-2.0
#

usage() {
    echo "Usage ${0} <merge|rebase> <oldaosptag> <newaosptag>"
}

# Verify argument count
if [ "$#" -ne 3 ]; then
    usage
    exit 1
fi

OPERATION="${1}"
OLDTAG="${2}"
NEWTAG="${3}"

if [ "${OPERATION}" != "merge" -a "${OPERATION}" != "rebase" ]; then
    usage
    exit 1
fi

### CONSTANTS ###
readonly script_path="$(cd "$(dirname "$0")";pwd -P)"
readonly vars_path="${script_path}/../vars"

source "${vars_path}/common"

TOP="${script_path}/../../.."
MERGEDREPOS="${TOP}/merged_repos.txt"
BRANCH="${calyxos_branch}"
STAGINGBRANCH="staging/${BRANCH}_${OPERATION}-${NEWTAG}"

# Source build environment (needed for calyxremote)
source "${TOP}/build/envsetup.sh"

# List of merged repos
PROJECTPATHS=$(cat ${MERGEDREPOS} | grep -w merge | awk '{printf "%s\n", $2}')

echo "#### Branch = ${BRANCH} Staging branch = ${STAGINGBRANCH} ####"

# Make sure manifest and forked repos are in a consistent state
echo "#### Verifying there are no uncommitted changes on LineageOS forked AOSP projects ####"
for PROJECTPATH in ${PROJECTPATHS} .repo/manifests; do
    cd "${TOP}/${PROJECTPATH}"
    if [[ -n "$(git status --porcelain)" ]]; then
        echo "Path ${PROJECTPATH} has uncommitted changes. Please fix."
        exit 1
    fi
done
echo "#### Verification complete - no uncommitted changes found ####"

read -p "Pushing ${STAGINGBRANCH} to ${BRANCH}. Press enter to confirm."

# Iterate over each forked project
for PROJECTPATH in ${PROJECTPATHS}; do
    cd "${TOP}/${PROJECTPATH}"
    echo "#### Submitting ${PROJECTPATH} merge ####"
    git checkout "${STAGINGBRANCH}"
    calyxremote | grep -v "Remote 'calyx' created"
    git push calyx HEAD:refs/heads/"${BRANCH}"
done