set -eu

export MSYS="${MSYS:-} winsymlinks:nativestrict"

export GIT_AUTHOR_NAME='GitPython Tests' GIT_AUTHOR_EMAIL='tests@example.invalid'

export GIT_COMMITTER_NAME="$GIT_AUTHOR_NAME" GIT_COMMITTER_EMAIL="$GIT_AUTHOR_EMAIL"

export GIT_AUTHOR_DATE='2001-01-01T00:00:00 +0000'

export GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"

git() { command git -c protocol.file.allow=always "$@"; }

source=$(git -C "$1" rev-parse --show-toplevel)

name=$2

scenario=${3:-base}

variant=${4:-none}

root=$PWD

git init -q -b master parent

git -C parent submodule add --name "$name" "$source" module

git -C parent commit -qm 'Create submodule'

case "$scenario" in

nested)

git -C parent submodule add --name other "$source" other

;;

existing-nested)

git clone -q --separate-git-dir="$root/parent/.git/modules/$name/child" "$source" parent/new

if test "$variant" = retained; then rm -rf parent/new; fi

;;

separate)

git init -q -b master --separate-git-dir="$root/separate/metadata" separate

git -C separate submodule add --name module "$source" module

git -C separate commit -qm 'Add submodule'

;;

intermediate-link)

target="$root/outside"

if test "$variant" = internal; then target="$root/parent/target"; fi

if test "$variant" != dangling; then mkdir "$target"; fi

mkdir parent/nested

case "$variant" in

absolute) ln -s "$target" parent/nested/link ;;

internal) ln -s ../target parent/nested/link ;;

*) ln -s ../../outside parent/nested/link ;;

esac

git -C parent add nested/link

git -C parent commit -qm 'Record layout'

;;

leaf-metadata)

git -C parent worktree add --detach "$root/worktree"

git -C worktree submodule update --init

target=$(git -C worktree rev-parse --absolute-git-dir)

if test "$variant" = common_dir; then target="$root/parent/.git"; fi

ln -s "$target" worktree/destination

;;

readd-retained)

git -C parent/module branch preserved

if test "$(git -C parent/module rev-parse --show-ref-format)" != "$variant"; then

git -C parent/module refs migrate --ref-format="$variant"

fi

git -C parent/module for-each-ref --format='%(refname) %(objectname)' > retained-refs

git -C parent/module symbolic-ref --short HEAD > retained-branch

git -C parent/module rev-parse HEAD > retained-commit

git -C parent/module remote get-url origin > retained-url

git -C parent rm -f module

;;

reconnect-moved)

mv parent/module parent/moved

;;

unknown-extension)

git -C parent/module config core.repositoryFormatVersion 1

git -C parent/module config extensions.unknown true

;;

logging)

git -C parent/module branch --unset-upstream

if test "$variant" = recursive || test "$variant" = keep-going; then

git -C parent/module submodule add --name child "$source" child

git -C parent/module commit -qm 'Add child'

git -C parent/module/child branch --unset-upstream

git -C parent add module

git -C parent commit -qm 'Record child'

fi

;;

retained)

git -C parent rm -f module

;;