git/t/t7417-submodule-path-url.sh
Patrick Steinhardt ebdbefa4fe builtin/mv: fix leaks for submodule gitfile paths
Similar to the preceding commit, we have effectively given tracking
memory ownership of submodule gitfile paths. Refactor the code to start
tracking allocated strings in a separate `struct strvec` such that we
can easily plug those leaks. Mark now-passing tests as leak free.

Note that ideally, we wouldn't require two separate data structures to
track those paths. But we do need to store `NULL` pointers for the
gitfile paths such that we can indicate that its corresponding entries
in the other arrays do not have such a path at all. And given that
`struct strvec`s cannot store `NULL` pointers we cannot use them to
store this information.

There is another small gotcha that is easy to miss: you may be wondering
why we don't want to store `SUBMODULE_WITH_GITDIR` in the strvec. This
is because this is a mere sentinel value and not actually a string at
all.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-27 11:20:03 -07:00

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#!/bin/sh
test_description='check handling of .gitmodule path with dash'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '
git config --global protocol.file.allow always
'
test_expect_success 'create submodule with dash in path' '
git init upstream &&
git -C upstream commit --allow-empty -m base &&
git submodule add ./upstream sub &&
git mv sub ./-sub &&
git commit -m submodule
'
test_expect_success 'clone rejects unprotected dash' '
test_when_finished "rm -rf dst" &&
git clone --recurse-submodules . dst 2>err &&
test_grep ignoring err
'
test_expect_success 'fsck rejects unprotected dash' '
test_when_finished "rm -rf dst" &&
git init --bare dst &&
git -C dst config transfer.fsckObjects true &&
test_must_fail git push dst HEAD 2>err &&
grep gitmodulesPath err
'
test_expect_success MINGW 'submodule paths disallows trailing spaces' '
git init super &&
test_must_fail git -C super submodule add ../upstream "sub " &&
: add "sub", then rename "sub" to "sub ", the hard way &&
git -C super submodule add ../upstream sub &&
tree=$(git -C super write-tree) &&
git -C super ls-tree $tree >tree &&
sed "s/sub/sub /" <tree >tree.new &&
tree=$(git -C super mktree <tree.new) &&
commit=$(echo with space | git -C super commit-tree $tree) &&
git -C super update-ref refs/heads/main $commit &&
test_must_fail git clone --recurse-submodules super dst 2>err &&
test_grep "sub " err
'
test_done