git_rebase_versions.sh

#!/bin/bash

# SPDX-License-Identifier
# Copyright (C) 2021-2022 Simon Fraser University (www.sfu.ca)

set -euxo pipefail

remote="$(git remote)"

function echo_read () {
    set +x
    echo -n "$1"
    read
    set -x
}

function generate () {
    ./make_build.sh
    git add .github/workflows/build.yml generated/build.sh
    git commit --fixup HEAD
    git rebase -i --autosquash --autostash HEAD~2
}

function git_rebase_push () {
    local br1=$1; shift
    local br2=$1; shift
    local count=$1; shift

    err=0
    git rebase --onto ${br1} ${br2}~${count} ${br2} || err=$?
    if (( err )); then
        echo_read "Error: rebase ($err). Conflict resolved? If yes, continue? "
    fi
    if [[ -v SYMRUSTC_GENERATE ]] || [[ -v SYMRUSTC_GENERATE_INTERACTIVE ]] ; then
        git checkout ${br2}
        if [[ -v SYMRUSTC_GENERATE_INTERACTIVE ]] ; then
            if zenity --info --title 'bool' --text "${br2}: update the generated files?" ; then
                generate
            fi
        else
            generate
        fi
    fi
    
    git push --force-with-lease "$remote" ${br2}
}

declare -a git_count=()

version1z=1.46.0
version2z=full_runtime/$version1z
version3z=verbose/$version1z
version4z=hybrid/$version1z
version5z=extended_examples_verbose/$version1z
version1a=1.55.0
version2a=rust_runtime/$version1a
version3a=symrustc_tools/$version1a
version1b=1.66.1
version1c=extended_examples/$version1b
version1d=extended_examples_ex_image/$version1b
version2d=extended_examples_verbose/$version1b
version1e=extended_examples_verbose_demo/$version1b
version1f=end_user/$version1b

versions0=( ubuntu_20_04/1.47.0 \
            1.47.0 )
versions1=( 1.48.0 \
            1.49.0 \
            1.50.0 \
            1.51.0 \
            1.52.1 \
            1.53.0 \
            1.54.0 \
            $version1a \
            1.56.1 \
            1.57.0 \
            1.58.1 \
            1.59.0 \
            1.60.0 \
            1.61.0 \
            1.62.1 \
            1.63.0 \
            1.64.0 \
            ubuntu_20_10/1.64.0 \
            1.65.0 \
            $version1b \
            1.67.1 )

#

git_count+=("$(git rev-list --count ^"$remote/$version1z" "$remote/$version2z")")
git_count+=("$(git rev-list --count ^"$remote/$version1z" "$remote/$version3z")")
git_count+=("$(git rev-list --count ^"$remote/$version1z" "$remote/$version4z")")
git_count+=("$(git rev-list --count ^"$remote/$version1z" "$remote/$version5z")")

br1=$version1z
for br2 in "${versions0[@]}"
do
    git_count+=("$(git rev-list --count ^"$remote/$br1" "$remote/$br2")")
    br1=${br2}
done
br0=${br1}
for br2 in "${versions1[@]}"
do
    git_count+=("$(git rev-list --count ^"$remote/$br1" "$remote/$br2")")
    br1=${br2}
done
br1=${br0}
for br2 in "${versions1[@]}"
do
    br2="no_insert/${br2}"
    git_count+=("$(git rev-list --count ^"$remote/$br1" "$remote/$br2")")
    br1=${br2}
done
git_count+=("$(git rev-list --count ^"$remote/no_insert/$version1a" "$remote/$version2a")")
git_count+=("$(git rev-list --count ^"$remote/no_insert/$version1a" "$remote/$version3a")")
git_count+=("$(git rev-list --count ^"$remote/no_insert/$version1b" "$remote/$version1c")")
git_count+=("$(git rev-list --count ^"$remote/$version1c" "$remote/$version1d")")
git_count+=("$(git rev-list --count ^"$remote/$version1c" "$remote/$version2d")")
git_count+=("$(git rev-list --count ^"$remote/$version2d" "$remote/$version1e")")
git_count+=("$(git rev-list --count ^"$remote/$version1e" "$remote/$version1f")")

#

git push --force-with-lease "$remote" $version1z

#

git_rebase_push $version1z $version2z "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1z $version3z "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1z $version4z "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1z $version5z "${git_count[0]}"; git_count=("${git_count[@]:1}")

br1=$version1z
for br2 in "${versions0[@]}"
do
    git_rebase_push $br1 $br2 "${git_count[0]}"; git_count=("${git_count[@]:1}")
    br1=${br2}
done
br0=${br1}
for br2 in "${versions1[@]}"
do
    git_rebase_push $br1 $br2 "${git_count[0]}"; git_count=("${git_count[@]:1}")
    br1=${br2}
done
br1=${br0}
for br2 in "${versions1[@]}"
do
    br2="no_insert/${br2}"
    git_rebase_push $br1 $br2 "${git_count[0]}"; git_count=("${git_count[@]:1}")
    br1=${br2}
done
git_rebase_push no_insert/$version1a $version2a "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push no_insert/$version1a $version3a "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push no_insert/$version1b $version1c "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1c $version1d "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1c $version2d "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version2d $version1e "${git_count[0]}"; git_count=("${git_count[@]:1}")
git_rebase_push $version1e $version1f "${git_count[0]}"; git_count=("${git_count[@]:1}")

#

git checkout $version1z