# Create a submodule layout used for all tests below.
#
# The following use cases are covered:
# - New submodule (no_submodule => add_sub1)
# - Removed submodule (add_sub1 => remove_sub1)
# - Updated submodule (add_sub1 => modify_sub1)
# - Updated submodule recursively (add_nested_sub => modify_sub1_recursively)
# - Submodule updated to invalid commit (add_sub1 => invalid_sub1)
# - Submodule updated from invalid commit (invalid_sub1 => valid_sub1)
# - Submodule replaced by tracked files in directory (add_sub1 =>
# replace_sub1_with_directory)
# - Directory containing tracked files replaced by submodule
# (replace_sub1_with_directory => replace_directory_with_sub1)
# - Submodule replaced by tracked file with the same name (add_sub1 =>
# replace_sub1_with_file)
# - Tracked file replaced by submodule (replace_sub1_with_file =>
# replace_file_with_sub1)
#
# ----O
# / ^
# / remove_sub1
# /
# add_sub1 /-------O---------O--------O modify_sub1_recursively
# | / ^ add_nested_sub
# | / modify_sub1
# v/
# O------O-----------O---------O
# ^ \ ^ replace_directory_with_sub1
# | \ replace_sub1_with_directory
# no_submodule \
# --------O---------O
# \ ^ replace_file_with_sub1
# \ replace_sub1_with_file
# \
# ----O---------O
# ^ valid_sub1
# invalid_sub1
#
create_lib_submodule_repo () {
git init submodule_update_sub1 &&
(
cd submodule_update_sub1 &&
echo "expect" >>.gitignore &&
echo "actual" >>.gitignore &&
echo "x" >file1 &&
echo "y" >file2 &&
git add .gitignore file1 file2 &&
git commit -m "Base inside first submodule" &&
git branch "no_submodule"
) &&
git init submodule_update_sub2 &&
(
cd submodule_update_sub2
echo "expect" >>.gitignore &&
echo "actual" >>.gitignore &&
echo "x" >file1 &&
echo "y" >file2 &&
git add .gitignore file1 file2 &&
git commit -m "nested submodule base" &&
git branch "no_submodule"
) &&
git init submodule_update_repo &&
(
cd submodule_update_repo &&
branch=$(git symbolic-ref --short HEAD) &&
echo "expect" >>.gitignore &&
echo "actual" >>.gitignore &&
echo "x" >file1 &&
echo "y" >file2 &&
git add .gitignore file1 file2 &&
git commit -m "Base" &&
git branch "no_submodule" &&
git checkout -b "add_sub1" &&
git submodule add ../submodule_update_sub1 sub1 &&
git submodule add ../submodule_update_sub1 uninitialized_sub &&
git config -f .gitmodules submodule.sub1.ignore all &&
git config submodule.sub1.ignore all &&
git add .gitmodules &&
git commit -m "Add sub1" &&
git checkout -b remove_sub1 add_sub1 &&
git revert HEAD &&
git checkout -b modify_sub1 add_sub1 &&
git submodule update &&
(
cd sub1 &&
git fetch &&
git checkout -b "modifications" &&
echo "z" >file2 &&
echo "x" >file3 &&
git add file2 file3 &&
git commit -m "modified file2 and added file3" &&
git push origin modifications
) &&
git add sub1 &&
git commit -m "Modify sub1" &&
git checkout -b add_nested_sub modify_sub1 &&
git -C sub1 checkout -b "add_nested_sub" &&
git -C sub1 submodule add --branch no_submodule ../submodule_update_sub2 sub2 &&
git -C sub1 commit -a -m "add a nested submodule" &&
git add sub1 &&
git commit -a -m "update submodule, that updates a nested submodule" &&
git checkout -b modify_sub1_recursively &&
git -C sub1 checkout -b modify_sub1_recursively &&
git -C sub1/sub2 checkout -b modify_sub1_recursively &&
echo change >sub1/sub2/file3 &&
git -C sub1/sub2 add file3 &&
git -C sub1/sub2 commit -m "make a change in nested sub" &&
git -C sub1 add sub2 &&
git -C sub1 commit -m "update nested sub" &&
git add sub1 &&
git commit -m "update sub1, that updates nested sub" &&
git -C sub1 push origin modify_sub1_recursively &&
git -C sub1/sub2 push origin modify_sub1_recursively &&
git -C sub1 submodule deinit -f --all &&
git checkout -b replace_sub1_with_directory add_sub1 &&
git submodule update &&
git -C sub1 checkout modifications &&
git rm --cached sub1 &&
rm sub1/.git* &&
git config -f .gitmodules --remove-section "submodule.sub1" &&
git add .gitmodules sub1/* &&
git commit -m "Replace sub1 with directory" &&
git checkout -b replace_directory_with_sub1 &&
git revert HEAD &&
git checkout -b replace_sub1_with_file add_sub1 &&
git rm sub1 &&
echo "content" >sub1 &&
git add sub1 &&
git commit -m "Replace sub1 with file" &&
git checkout -b replace_file_with_sub1 &&
git revert HEAD &&
git checkout -b invalid_sub1 add_sub1 &&
git update-index --cacheinfo 160000 $(test_oid numeric) sub1 &&
git commit -m "Invalid sub1 commit" &&
git checkout -b valid_sub1 &&
git revert HEAD &&
git checkout "$branch"
)
}
# Helper function to replace gitfile with .git directory
replace_gitfile_with_git_dir () {
(
cd "$1" &&
git_dir="$(git rev-parse --git-dir)" &&
rm -f .git &&
cp -R "$git_dir" .git &&
GIT_WORK_TREE=. git config --unset core.worktree
)
}
# Test that the .git directory in the submodule is unchanged (except for the
# core.worktree setting, which appears only in $GIT_DIR/modules/$1/config).
# Call this function before test_submodule_content as the latter might
# write the index file leading to false positive index differences.
#
# Note that this only supports submodules at the root level of the
# superproject, with the default name, i.e. same as its path.
test_git_directory_is_unchanged () {
# does core.worktree point at the right place?
echo "../../../$1" >expect &&
git -C ".git/modules/$1" config core.worktree >actual &&
test_cmp expect actual &&
# remove it temporarily before comparing, as
# "$1/.git/config" lacks it...
git -C ".git/modules/$1" config --unset core.worktree &&
diff -r ".git/modules/$1" "$1/.git" &&
# ... and then restore.
git -C ".git/modules/$1" config core.worktree "../../../$1"
}
test_git_directory_exists () {
test -e ".git/modules/$1" &&
if test -f sub1/.git
then
# does core.worktree point at the right place?
echo "../../../$1" >expect &&
git -C ".git/modules/$1" config core.worktree >actual &&
test_cmp expect actual
fi
}
# Helper function to be executed at the start of every test below, it sets up
# the submodule repo if it doesn't exist and configures the most problematic
# settings for diff.ignoreSubmodules.
prolog () {
test_config_global protocol.file.allow always &&
(test -d submodule_update_repo || create_lib_submodule_repo) &&
test_config_global diff.ignoreSubmodules all &&
test_config diff.ignoreSubmodules all
}
# Helper function to bring work tree back into the state given by the
# commit. This includes trying to populate sub1 accordingly if it exists and
# should be updated to an existing commit.
reset_work_tree_to () {
rm -rf submodule_update &&
git clone --template= submodule_update_repo submodule_update &&
(
cd submodule_update &&
rm -rf sub1 &&
git checkout -f "$1" &&
git status -u -s >actual &&
test_must_be_empty actual &&
hash=$(git rev-parse --revs-only HEAD:sub1) &&
if test -n "$hash" &&
test $(cd "../submodule_update_sub1" && git rev-parse --verify "$hash^{commit}")
then
git submodule update --init --recursive "sub1"
fi
)
}
reset_work_tree_to_interested () {
reset_work_tree_to $1 &&
# make the submodule git dirs available
if ! test -d submodule_update/.git/modules/sub1
then
mkdir -p submodule_update/.git/modules &&
cp -r submodule_update_repo/.git/modules/sub1 submodule_update/.git/modules/sub1
GIT_WORK_TREE=. git -C submodule_update/.git/modules/sub1 config --unset core.worktree
fi &&
if ! test -d submodule_update/.git/modules/sub1/modules/sub2
then
mkdir -p submodule_update/.git/modules/sub1/modules &&
cp -r submodule_update_repo/.git/modules/sub1/modules/sub2 submodule_update/.git/modules/sub1/modules/sub2
# core.worktree is unset for sub2 as it is not checked out
fi &&
# indicate we are interested in the submodule:
git -C submodule_update config submodule.sub1.url "bogus" &&
# sub1 might not be checked out, so use the git dir
git -C submodule_update/.git/modules/sub1 config submodule.sub2.url "bogus"
}
# Test that the superproject contains the content according to commit "$1"
# (the work tree must match the index for everything but submodules but the
# index must exactly match the given commit including any submodule SHA-1s).
test_superproject_content () {
git diff-index --cached "$1" >actual &&
test_must_be_empty actual &&
git diff-files --ignore-submodules >actual &&
test_must_be_empty actual
}
# Test that the given submodule at path "$1" contains the content according
# to the submodule commit recorded in the superproject's commit "$2"
test_submodule_content () {
if test x"$1" = "x-C"
then
cd "$2"
shift; shift;
fi
if test $# != 2
then
echo "test_submodule_content needs two arguments"
return 1
fi &&
submodule="$1" &&
commit="$2" &&
test -d "$submodule"/ &&
if ! test -f "$submodule"/.git && ! test -d "$submodule"/.git
then
echo "Submodule $submodule is not populated"
return 1
fi &&
sha1=$(git rev-parse --verify "$commit:$submodule") &&
if test -z "$sha1"
then
echo "Couldn't retrieve SHA-1 of $submodule for $commit"
return 1
fi &&
(
cd "$submodule" &&
git status -u -s >actual &&
test_must_be_empty actual &&
git diff "$sha1" >actual &&
test_must_be_empty actual
)
}
# Test that the following transitions are correctly handled:
# - Updated submodule
# - New submodule
# - Removed submodule
# - Directory containing tracked files replaced by submodule
# - Submodule replaced by tracked files in directory
# - Submodule replaced by tracked file with the same name
# - Tracked file replaced by submodule
#
# The default is that submodule contents aren't changed until "git submodule
# update" is run. And even then that command doesn't delete the work tree of
# a removed submodule.
#
# The first argument of the callback function will be the name of the submodule.
#
# Removing a submodule containing a .git directory must fail even when forced
# to protect the history! If we are testing this case, the second argument of
# the callback function will be 'test_must_fail', else it will be the empty
# string.
#
# Internal function; use test_submodule_switch_func(), test_submodule_switch(),
# or test_submodule_forced_switch() instead.
test_submodule_switch_common () {
command="$1"
######################### Appearing submodule #########################
# Switching to a commit letting a submodule appear creates empty dir ...
test_expect_success "$command: added submodule creates empty directory" '
prolog &&
reset_work_tree_to no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_dir_is_empty sub1 &&
git submodule update --init --recursive &&
test_submodule_content sub1 origin/add_sub1
)
'
# ... and doesn't care if it already exists.
if test "$KNOWN_FAILURE_STASH_DOES_IGNORE_SUBMODULE_CHANGES" = 1
then
# Restoring stash fails to restore submodule index entry
RESULT="failure"
else
RESULT="success"
fi
test_expect_$RESULT "$command: added submodule leaves existing empty directory alone" '
prolog &&
reset_work_tree_to no_submodule &&
(
cd submodule_update &&
mkdir sub1 &&
git branch -t add_sub1 origin/add_sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_dir_is_empty sub1 &&
git submodule update --init --recursive &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing a tracked file with a submodule produces an empty
# directory ...
test_expect_$RESULT "$command: replace tracked file with submodule creates empty directory" '
prolog &&
reset_work_tree_to replace_sub1_with_file &&
(
cd submodule_update &&
git branch -t replace_file_with_sub1 origin/replace_file_with_sub1 &&
$command replace_file_with_sub1 &&
test_superproject_content origin/replace_file_with_sub1 &&
test_dir_is_empty sub1 &&
git submodule update --init --recursive &&
test_submodule_content sub1 origin/replace_file_with_sub1
)
'
# ... as does removing a directory with tracked files with a
# submodule.
if test "$KNOWN_FAILURE_NOFF_MERGE_DOESNT_CREATE_EMPTY_SUBMODULE_DIR" = 1
then
# Non fast-forward merges fail with "Directory sub1 doesn't
# exist. sub1" because the empty submodule directory is not
# created
RESULT="failure"
else
RESULT="success"
fi
test_expect_$RESULT "$command: replace directory with submodule" '
prolog &&
reset_work_tree_to replace_sub1_with_directory &&
(
cd submodule_update &&
git branch -t replace_directory_with_sub1 origin/replace_directory_with_sub1 &&
$command replace_directory_with_sub1 &&
test_superproject_content origin/replace_directory_with_sub1 &&
test_dir_is_empty sub1 &&
git submodule update --init --recursive &&
test_submodule_content sub1 origin/replace_directory_with_sub1
)
'
######################## Disappearing submodule #######################
# Removing a submodule doesn't remove its work tree ...
if test "$KNOWN_FAILURE_STASH_DOES_IGNORE_SUBMODULE_CHANGES" = 1
then
RESULT="failure"
else
RESULT="success"
fi
test_expect_$RESULT "$command: removed submodule leaves submodule directory and its contents in place" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t remove_sub1 origin/remove_sub1 &&
$command remove_sub1 &&
test_superproject_content origin/remove_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# ... especially when it contains a .git directory.
test_expect_$RESULT "$command: removed submodule leaves submodule containing a .git directory alone" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t remove_sub1 origin/remove_sub1 &&
replace_gitfile_with_git_dir sub1 &&
$command remove_sub1 &&
test_superproject_content origin/remove_sub1 &&
test_git_directory_is_unchanged sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing a submodule with files in a directory must fail as the
# submodule work tree isn't removed ...
if test "$KNOWN_FAILURE_NOFF_MERGE_ATTEMPTS_TO_MERGE_REMOVED_SUBMODULE_FILES" = 1
then
# Non fast-forward merges attempt to merge the former
# submodule files with the newly checked out ones in the
# directory of the same name while it shouldn't.
RESULT="failure"
elif test "$KNOWN_FAILURE_FORCED_SWITCH_TESTS" = 1
then
# All existing tests that use test_submodule_forced_switch()
# require this.
RESULT="failure"
else
RESULT="success"
fi
test_expect_$RESULT "$command: replace submodule with a directory must fail" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
$command replace_sub1_with_directory test_must_fail &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# ... especially when it contains a .git directory.
test_expect_$RESULT "$command: replace submodule containing a .git directory with a directory must fail" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
replace_gitfile_with_git_dir sub1 &&
$command replace_sub1_with_directory test_must_fail &&
test_superproject_content origin/add_sub1 &&
test_git_directory_is_unchanged sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing it with a file must fail as it could throw away any local
# work tree changes ...
test_expect_failure "$command: replace submodule with a file must fail" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
$command replace_sub1_with_file test_must_fail &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# ... or even destroy unpushed parts of submodule history if that
# still uses a .git directory.
test_expect_failure "$command: replace submodule containing a .git directory with a file must fail" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
replace_gitfile_with_git_dir sub1 &&
$command replace_sub1_with_file test_must_fail &&
test_superproject_content origin/add_sub1 &&
test_git_directory_is_unchanged sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
########################## Modified submodule #########################
# Updating a submodule sha1 doesn't update the submodule's work tree
if test "$KNOWN_FAILURE_CHERRY_PICK_SEES_EMPTY_COMMIT" = 1
then
# When cherry picking a SHA-1 update for an ignored submodule
# the commit incorrectly fails with "The previous cherry-pick
# is now empty, possibly due to conflict resolution."
RESULT="failure"
else
RESULT="success"
fi
test_expect_$RESULT "$command: modified submodule does not update submodule work tree" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t modify_sub1 origin/modify_sub1 &&
$command modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/add_sub1 &&
git submodule update &&
test_submodule_content sub1 origin/modify_sub1
)
'
# Updating a submodule to an invalid sha1 doesn't update the
# submodule's work tree, subsequent update will fail
test_expect_$RESULT "$command: modified submodule does not update submodule work tree to invalid commit" '
prolog &&
reset_work_tree_to add_sub1 &&
(
cd submodule_update &&
git branch -t invalid_sub1 origin/invalid_sub1 &&
$command invalid_sub1 &&
test_superproject_content origin/invalid_sub1 &&
test_submodule_content sub1 origin/add_sub1 &&
test_must_fail git submodule update &&
test_submodule_content sub1 origin/add_sub1
)
'
# Updating a submodule from an invalid sha1 doesn't update the
# submodule's work tree, subsequent update will succeed
test_expect_$RESULT "$command: modified submodule does not update submodule work tree from invalid commit" '
prolog &&
reset_work_tree_to invalid_sub1 &&
(
cd submodule_update &&
git branch -t valid_sub1 origin/valid_sub1 &&
$command valid_sub1 &&
test_superproject_content origin/valid_sub1 &&
test_dir_is_empty sub1 &&
git submodule update --init --recursive &&
test_submodule_content sub1 origin/valid_sub1
)
'
}
# Declares and invokes several tests that, in various situations, checks that
# the provided transition function:
# - succeeds in updating the worktree and index of a superproject to a target
# commit, or fails atomically (depending on the test situation)
# - if succeeds, the contents of submodule directories are unchanged
# - if succeeds, once "git submodule update" is invoked, the contents of
# submodule directories are updated
#
# If the command under test is known to not work with submodules in certain
# conditions, set the appropriate KNOWN_FAILURE_* variable used in the tests
# below to 1.
#
# The first argument of the callback function will be the name of the submodule.
#
# Removing a submodule containing a .git directory must fail even when forced
# to protect the history! If we are testing this case, the second argument of
# the callback function will be 'test_must_fail', else it will be the empty
# string.
#
# The following example uses `git some-command` as an example command to be
# tested. It updates the worktree and index to match a target, but not any
# submodule directories.
#
# my_func () {
# ...prepare for `git some-command` to be run...
# $2 git some-command "$1" &&
# if test -n "$2"
# then
# return
# fi &&
# ...check the state after git some-command is run...
# }
# test_submodule_switch_func "my_func"
test_submodule_switch_func () {
command="$1"
test_submodule_switch_common "$command"
# An empty directory does not prevent the creation of a submodule of
# the same name, but a file does.
test_expect_success "$command: added submodule doesn't remove untracked unignored file with same name" '
prolog &&
reset_work_tree_to no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
>sub1 &&
$command add_sub1 test_must_fail &&
test_superproject_content origin/no_submodule &&
test_must_be_empty sub1
)
'
}
# Ensures that the that the arg either contains "test_must_fail" or is empty.
may_only_be_test_must_fail () {
test -z "$1" || test "$1" = test_must_fail || die
}
git_test_func () {
may_only_be_test_must_fail "$2" &&
$2 git $gitcmd "$1"
}
test_submodule_switch () {
gitcmd="$1"
test_submodule_switch_func "git_test_func"
}
# Same as test_submodule_switch(), except that throwing away local changes in
# the superproject is allowed.
test_submodule_forced_switch () {
gitcmd="$1"
command="git_test_func"
KNOWN_FAILURE_FORCED_SWITCH_TESTS=1
test_submodule_switch_common "$command"
# When forced, a file in the superproject does not prevent creating a
# submodule of the same name.
test_expect_success "$command: added submodule does remove untracked unignored file with same name when forced" '
prolog &&
reset_work_tree_to no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
>sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_dir_is_empty sub1
)
'
}
# Test that submodule contents are correctly updated when switching
# between commits that change a submodule.
# Test that the following transitions are correctly handled:
# (These tests are also above in the case where we expect no change
# in the submodule)
# - Updated submodule
# - New submodule
# - Removed submodule
# - Directory containing tracked files replaced by submodule
# - Submodule replaced by tracked files in directory
# - Submodule replaced by tracked file with the same name
# - Tracked file replaced by submodule
#
# New test cases
# - Removing a submodule with a git directory absorbs the submodules
# git directory first into the superproject.
# - Switching from no submodule to nested submodules
# - Switching from nested submodules to no submodule
# Internal function; use test_submodule_switch_recursing_with_args() or
# test_submodule_forced_switch_recursing_with_args() instead.
test_submodule_recursing_with_args_common () {
command="$1 --recurse-submodules"
######################### Appearing submodule #########################
# Switching to a commit letting a submodule appear checks it out ...
test_expect_success "$command: added submodule is checked out" '
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# ... ignoring an empty existing directory.
test_expect_success "$command: added submodule is checked out in empty dir" '
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
mkdir sub1 &&
git branch -t add_sub1 origin/add_sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing a tracked file with a submodule produces a checked out submodule
test_expect_success "$command: replace tracked file with submodule checks out submodule" '
prolog &&
reset_work_tree_to_interested replace_sub1_with_file &&
(
cd submodule_update &&
git branch -t replace_file_with_sub1 origin/replace_file_with_sub1 &&
$command replace_file_with_sub1 &&
test_superproject_content origin/replace_file_with_sub1 &&
test_submodule_content sub1 origin/replace_file_with_sub1
)
'
# ... as does removing a directory with tracked files with a submodule.
test_expect_success "$command: replace directory with submodule" '
prolog &&
reset_work_tree_to_interested replace_sub1_with_directory &&
(
cd submodule_update &&
git branch -t replace_directory_with_sub1 origin/replace_directory_with_sub1 &&
$command replace_directory_with_sub1 &&
test_superproject_content origin/replace_directory_with_sub1 &&
test_submodule_content sub1 origin/replace_directory_with_sub1
)
'
# Switching to a commit with nested submodules recursively checks them out
test_expect_success "$command: nested submodules are checked out" '
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
git branch -t modify_sub1_recursively origin/modify_sub1_recursively &&
$command modify_sub1_recursively &&
test_superproject_content origin/modify_sub1_recursively &&
test_submodule_content sub1 origin/modify_sub1_recursively &&
test_submodule_content -C sub1 sub2 origin/modify_sub1_recursively
)
'
######################## Disappearing submodule #######################
# Removing a submodule removes its work tree ...
test_expect_success "$command: removed submodule removes submodules working tree" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t remove_sub1 origin/remove_sub1 &&
$command remove_sub1 &&
test_superproject_content origin/remove_sub1 &&
! test -e sub1 &&
test_must_fail git config -f .git/modules/sub1/config core.worktree
)
'
# ... absorbing a .git directory along the way.
test_expect_success "$command: removed submodule absorbs submodules .git directory" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t remove_sub1 origin/remove_sub1 &&
replace_gitfile_with_git_dir sub1 &&
rm -rf .git/modules &&
$command remove_sub1 &&
test_superproject_content origin/remove_sub1 &&
! test -e sub1 &&
test_git_directory_exists sub1
)
'
# Replacing it with a file ...
test_expect_success "$command: replace submodule with a file" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
$command replace_sub1_with_file &&
test_superproject_content origin/replace_sub1_with_file &&
test -f sub1
)
'
RESULTDS=success
if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
then
RESULTDS=failure
fi
# ... must check its local work tree for untracked files
test_expect_$RESULTDS "$command: replace submodule with a file must fail with untracked files" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
: >sub1/untrackedfile &&
test_must_fail $command replace_sub1_with_file &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1 &&
test -f sub1/untracked_file
)
'
# Switching to a commit without nested submodules removes their worktrees
test_expect_success "$command: worktrees of nested submodules are removed" '
prolog &&
reset_work_tree_to_interested add_nested_sub &&
(
cd submodule_update &&
git branch -t no_submodule origin/no_submodule &&
$command no_submodule &&
test_superproject_content origin/no_submodule &&
test_path_is_missing sub1 &&
test_must_fail git config -f .git/modules/sub1/config core.worktree &&
test_must_fail git config -f .git/modules/sub1/modules/sub2/config core.worktree
)
'
########################## Modified submodule #########################
# Updating a submodule sha1 updates the submodule's work tree
test_expect_success "$command: modified submodule updates submodule work tree" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t modify_sub1 origin/modify_sub1 &&
$command modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/modify_sub1
)
'
# Updating a submodule to an invalid sha1 doesn't update the
# superproject nor the submodule's work tree.
test_expect_success "$command: updating to a missing submodule commit fails" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t invalid_sub1 origin/invalid_sub1 &&
test_must_fail $command invalid_sub1 2>err &&
test_grep sub1 err &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Updating a submodule does not touch the currently checked out branch in the submodule
test_expect_success "$command: submodule branch is not changed, detach HEAD instead" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git -C sub1 checkout -b keep_branch &&
git -C sub1 rev-parse HEAD >expect &&
git branch -t modify_sub1 origin/modify_sub1 &&
$command modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/modify_sub1 &&
git -C sub1 rev-parse keep_branch >actual &&
test_cmp expect actual &&
test_must_fail git -C sub1 symbolic-ref HEAD
)
'
}
# Declares and invokes several tests that, in various situations, checks that
# the provided Git command, when invoked with --recurse-submodules:
# - succeeds in updating the worktree and index of a superproject to a target
# commit, or fails atomically (depending on the test situation)
# - if succeeds, the contents of submodule directories are updated
#
# Specify the Git command so that "git $GIT_COMMAND --recurse-submodules"
# works.
#
# If the command under test is known to not work with submodules in certain
# conditions, set the appropriate KNOWN_FAILURE_* variable used in the tests
# below to 1.
#
# Use as follows:
#
# test_submodule_switch_recursing_with_args "$GIT_COMMAND"
test_submodule_switch_recursing_with_args () {
cmd_args="$1"
command="git $cmd_args"
test_submodule_recursing_with_args_common "$command"
RESULTDS=success
if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
then
RESULTDS=failure
fi
RESULTOI=success
if test "$KNOWN_FAILURE_SUBMODULE_OVERWRITE_IGNORED_UNTRACKED" = 1
then
RESULTOI=failure
fi
# Switching to a commit letting a submodule appear cannot override an
# untracked file.
test_expect_success "$command: added submodule doesn't remove untracked file with same name" '
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
: >sub1 &&
test_must_fail $command add_sub1 &&
test_superproject_content origin/no_submodule &&
test_must_be_empty sub1
)
'
# ... but an ignored file is fine.
test_expect_$RESULTOI "$command: added submodule removes an untracked ignored file" '
test_when_finished "rm -rf submodule_update/.git/info" &&
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
: >sub1 &&
mkdir .git/info &&
echo sub1 >.git/info/exclude &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing a submodule with files in a directory must succeeds
# when the submodule is clean
test_expect_$RESULTDS "$command: replace submodule with a directory" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
$command replace_sub1_with_directory &&
test_superproject_content origin/replace_sub1_with_directory &&
test_submodule_content sub1 origin/replace_sub1_with_directory
)
'
# ... absorbing a .git directory.
test_expect_$RESULTDS "$command: replace submodule containing a .git directory with a directory must absorb the git dir" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
replace_gitfile_with_git_dir sub1 &&
rm -rf .git/modules &&
$command replace_sub1_with_directory &&
test_superproject_content origin/replace_sub1_with_directory &&
test_git_directory_exists sub1
)
'
# ... and ignored files are ignored
test_expect_success "$command: replace submodule with a file works ignores ignored files in submodule" '
test_when_finished "rm submodule_update/.git/modules/sub1/info/exclude" &&
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
rm -rf .git/modules/sub1/info &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
mkdir .git/modules/sub1/info &&
echo ignored >.git/modules/sub1/info/exclude &&
: >sub1/ignored &&
$command replace_sub1_with_file &&
test_superproject_content origin/replace_sub1_with_file &&
test -f sub1
)
'
test_expect_success "git -c submodule.recurse=true $cmd_args: modified submodule updates submodule work tree" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t modify_sub1 origin/modify_sub1 &&
git -c submodule.recurse=true $cmd_args modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/modify_sub1
)
'
test_expect_success "$command: modified submodule updates submodule recursively" '
prolog &&
reset_work_tree_to_interested add_nested_sub &&
(
cd submodule_update &&
git branch -t modify_sub1_recursively origin/modify_sub1_recursively &&
$command modify_sub1_recursively &&
test_superproject_content origin/modify_sub1_recursively &&
test_submodule_content sub1 origin/modify_sub1_recursively &&
test_submodule_content -C sub1 sub2 origin/modify_sub1_recursively
)
'
}
# Same as test_submodule_switch_recursing_with_args(), except that throwing
# away local changes in the superproject is allowed.
test_submodule_forced_switch_recursing_with_args () {
cmd_args="$1"
command="git $cmd_args"
test_submodule_recursing_with_args_common "$command"
RESULT=success
if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
then
RESULT=failure
fi
# Switching to a commit letting a submodule appear does not care about
# an untracked file.
test_expect_success "$command: added submodule does remove untracked unignored file with same name when forced" '
prolog &&
reset_work_tree_to_interested no_submodule &&
(
cd submodule_update &&
git branch -t add_sub1 origin/add_sub1 &&
>sub1 &&
$command add_sub1 &&
test_superproject_content origin/add_sub1 &&
test_submodule_content sub1 origin/add_sub1
)
'
# Replacing a submodule with files in a directory ...
test_expect_success "$command: replace submodule with a directory" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
$command replace_sub1_with_directory &&
test_superproject_content origin/replace_sub1_with_directory
)
'
# ... absorbing a .git directory.
test_expect_success "$command: replace submodule containing a .git directory with a directory must fail" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
replace_gitfile_with_git_dir sub1 &&
rm -rf .git/modules/sub1 &&
$command replace_sub1_with_directory &&
test_superproject_content origin/replace_sub1_with_directory &&
test_git_directory_exists sub1
)
'
# ... even if the submodule contains ignored files
test_expect_success "$command: replace submodule with a file ignoring ignored files" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
: >sub1/expect &&
$command replace_sub1_with_file &&
test_superproject_content origin/replace_sub1_with_file
)
'
# Updating a submodule from an invalid sha1 updates
test_expect_success "$command: modified submodule does update submodule work tree from invalid commit" '
prolog &&
reset_work_tree_to_interested invalid_sub1 &&
(
cd submodule_update &&
git branch -t valid_sub1 origin/valid_sub1 &&
$command valid_sub1 &&
test_superproject_content origin/valid_sub1 &&
test_submodule_content sub1 origin/valid_sub1
)
'
# Old versions of Git were buggy writing the .git link file
# (e.g. before f8eaa0ba98b and then moving the superproject repo
# whose submodules contained absolute paths)
test_expect_success "$command: updating submodules fixes .git links" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
git branch -t modify_sub1 origin/modify_sub1 &&
echo "gitdir: bogus/path" >sub1/.git &&
$command modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/modify_sub1
)
'
test_expect_success "$command: changed submodule worktree is reset" '
prolog &&
reset_work_tree_to_interested add_sub1 &&
(
cd submodule_update &&
rm sub1/file1 &&
: >sub1/new_file &&
git -C sub1 add new_file &&
$command HEAD &&
test_path_is_file sub1/file1 &&
test_path_is_missing sub1/new_file
)
'
}
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