set -eu

args=("$@")

source "$(dirname "${BASH_SOURCE[0]}")/submodule-layout.sh" "$1" "$2"

scenario=${args[2]}

kind=${args[3]}

dangling=${args[4]}

relative_target=${args[6]}

modules="$root/parent/.git/modules"

target="$root/outside"

case "$scenario" in

test_submodule_writes_use_checked_worktree)

if test "${args[5]}" = update; then

printf updated > parent/module/file

git -C parent/module add file

git -C parent/module commit -qm 'Advance submodule'

git -C parent add module

git -C parent commit -qm 'Record updated submodule'

git -C parent/module reset -q --hard HEAD^

fi

mkdir "$target"

ln -s "$target" parent/redirect

worktree="$root/parent/redirect"

if test "$kind" = intermediate; then

mkdir "$target/worktree"

worktree="$worktree/worktree"

fi

printf content > "$worktree/file"

git -C parent/module config core.worktree "$worktree"

;;

test_move_leaf_symlink_compatibility)

case "$kind" in

empty|nonempty) mkdir "$target" ;;

file) printf keep > "$target" ;;

esac

if test "$kind" = nonempty; then printf keep > "$target/keep"; fi

ln -s "$target" parent/destination

;;

test_clone_rejects_checkout_symlinks)

if test "$dangling" = False; then mkdir "$target"; fi

ln -s "$target" parent/link

;;

test_submodule_rejects_checkout_and_gitmodules_symlinks)

path=parent/module

if test "$kind" = gitmodules; then path=parent/.gitmodules; fi

mv "$path" "$target"

ln -s "$target" "$path"

mkdir parent/moved

;;

test_submodule_allows_symlink_above_worktree)

ln -s "$root/parent" alias

;;

test_submodule_allows_metadata_destination_symlinks)

mkdir "$target"

ln -s "$target" "$modules/link"

;;

test_submodule_allows_existing_metadata_symlinks|test_remove_linked_metadata_keeps_siblings_and_can_reinitialize)

if test "$scenario" = test_remove_linked_metadata_keeps_siblings_and_can_reinitialize; then

git -C parent submodule add --name nested/sibling "$source" sibling

git -C parent commit -qm 'Add sibling'

fi

case "$kind" in

modules) link="$modules" ;;

intermediate) link="$modules/nested" ;;

leaf) link="$modules/nested/module" ;;

gitfile) link="$root/parent/module/.git" ;;

config) link="$modules/nested/module/config" ;;

alias)

link="$modules/alias"

target="$modules/nested"

printf 'gitdir: ../.git/modules/alias/module' > parent/module/.git

;;

esac

if test "$kind" != alias; then mv "$link" "$target"; fi

ln -s "$target" "$link"

git config --file "$modules/nested/module/config" core.worktree "$root/parent/module"

if test "$scenario" = test_remove_linked_metadata_keeps_siblings_and_can_reinitialize; then

git config --file "$modules/nested/sibling/config" core.worktree "$root/parent/sibling"

fi

;;

test_add_to_dangling_metadata_symlink)

target="$root/missing/metadata"

# Windows determines the native symlink type from the existing target.

mkdir -p "$target"

if test "$relative_target" = True; then

ln -s ../../../missing/metadata "$modules/new"

else

ln -s "$target" "$modules/new"

fi

rmdir "$target" "$root/missing"

;;