[PATCH v2 1/3] config: use gitdir to get worktree config
- From
Victoria Dye via GitGitGadget <gitgitgadget@gmail.com>
- Date
- May 26, 2023, 01:32 UTC
- Message-ID
- <fb597cdfeb033478103c81143e1b16dec957e0a4.1685064781.git.gitgitgadget@gmail.com>
- In-Reply-To
- <pull.1536.v2.git.1685064781.gitgitgadget@gmail.com>
From: Victoria Dye <vdye@github.com>
Update 'do_git_config_sequence()' to read the worktree config from 'config.worktree' in 'opts->git_dir' rather than the gitdir of 'the_repository'.
The worktree config is loaded from the path returned by 'git_pathdup("config.worktree")', the 'config.worktree' relative to the gitdir of 'the_repository'. If loading the config for a submodule, this path is incorrect, since 'the_repository' is the superproject. 'opts->git_dir' is the gitdir of the submodule being configured, so the config file in that location should be read instead.
To ensure the use of 'opts->git_dir' is safe, require that 'opts->git_dir' is set if-and-only-if 'opts->commondir' is set (rather than "only-if" as it is now). In all current usage of 'config_options', these values are set together, so the stricter check does not change any behavior.
Finally, add tests to 't3007-ls-files-recurse-submodules.sh' to verify the corrected config is loaded. Use 'ls-files' to test this because, unlike some other '--recurse-submodules' commands, 'ls-files' parses the config of the submodule in the same process as the superproject (via 'show_submodule()' -> 'repo_read_index()' -> 'prepare_repo_settings()'). As a result, 'the_repository' points to the config of the superproject but the commondir/gitdir in the config sequence will be that of the submodule, providing the exact scenario needed to verify this patch.
The first test ('--recurse-submodules parses submodule repo config') checks that the submodule's *repo* config is read when running 'ls-files' on the superproject; this confirms already-working behavior, serving as a reference for how worktree config parsing should behave. The second test ('--recurse-submodules parses submodule worktree config') tests the same scenario as the previous but instead using the *worktree* config, demonstrating the corrected behavior. The 'test_config' helper is extended for this case so that it properly applies the '--worktree' option to the configure/unconfigure operations it performs.
Note that, although the submodule worktree config is now parsed instead of the superproject's, 'extensions.worktreeConfig' in the superproject still controls whether or not the worktree config is enabled at all in the submodule. This will be fixed in a later patch.
Signed-off-by: Victoria Dye <vdye@github.com> --- config.c | 28 +++++++++++++++++--------- t/t3007-ls-files-recurse-submodules.sh | 18 +++++++++++++++++ t/test-lib-functions.sh | 13 ++++++++++-- 3 files changed, 48 insertions(+), 11 deletions(-)
diff --git a/config.c b/config.c index b79baf83e35..a93f7bfa3aa 100644 --- a/config.c +++ b/config.c @@ -2200,14 +2200,24 @@ static int do_git_config_sequence(struct config_reader *reader, char *xdg_config = NULL; char *user_config = NULL; char *repo_config; + char *worktree_config; enum config_scope prev_parsing_scope = reader->parsing_scope; - if (opts->commondir) + /* + * Ensure that either: + * - the git_dir and commondir are both set, or + * - the git_dir and commondir are both NULL + */ + if (!opts->git_dir != !opts->commondir) + BUG("only one of commondir and git_dir is non-NULL"); + + if (opts->commondir) { repo_config = mkpathdup("%s/config", opts->commondir); - else if (opts->git_dir) - BUG("git_dir without commondir"); - else + worktree_config = mkpathdup("%s/config.worktree", opts->git_dir); + } else { repo_config = NULL; + worktree_config = NULL; + } config_reader_set_scope(reader, CONFIG_SCOPE_SYSTEM); if (git_config_system() && system_config && @@ -2230,11 +2240,10 @@ static int do_git_config_sequence(struct config_reader *reader, ret += git_config_from_file(fn, repo_config, data); config_reader_set_scope(reader, CONFIG_SCOPE_WORKTREE); - if (!opts->ignore_worktree && repository_format_worktree_config) { - char *path = git_pathdup("config.worktree"); - if (!access_or_die(path, R_OK, 0)) - ret += git_config_from_file(fn, path, data); - free(path); + if (!opts->ignore_worktree && worktree_config && + repository_format_worktree_config && + !access_or_die(worktree_config, R_OK, 0)) { + ret += git_config_from_file(fn, worktree_config, data); } config_reader_set_scope(reader, CONFIG_SCOPE_COMMAND); @@ -2246,6 +2255,7 @@ static int do_git_config_sequence(struct config_reader *reader, free(xdg_config); free(user_config); free(repo_config); + free(worktree_config); return ret; } diff --git a/t/t3007-ls-files-recurse-submodules.sh b/t/t3007-ls-files-recurse-submodules.sh index dd7770e85de..a3e26751427 100755 --- a/t/t3007-ls-files-recurse-submodules.sh +++ b/t/t3007-ls-files-recurse-submodules.sh @@ -299,6 +299,24 @@ test_expect_success '--recurse-submodules does not support --error-unmatch' ' test_i18ngrep "does not support --error-unmatch" actual ' +test_expect_success '--recurse-submodules parses submodule repo config' ' + test_config -C submodule index.sparse "invalid non-boolean value" && + test_must_fail git ls-files --recurse-submodules 2>err && + grep "bad boolean config value" err +' + +test_expect_success '--recurse-submodules parses submodule worktree config' ' + test_config -C submodule extensions.worktreeConfig true && + test_config -C submodule --worktree index.sparse "invalid non-boolean value" && + + # NEEDSWORK: the extensions.worktreeConfig is set globally based on + # superproject, so we need to enable it in the superproject. + test_config extensions.worktreeConfig true && + + test_must_fail git ls-files --recurse-submodules 2>err && + grep "bad boolean config value" err +' + test_incompatible_with_recurse_submodules () { test_expect_success "--recurse-submodules and $1 are incompatible" " test_must_fail git ls-files --recurse-submodules $1 2>actual && diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 6e19ebc922a..b3864e22e9a 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -542,8 +542,17 @@ test_config () { config_dir=$1 shift fi - test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" && - git ${config_dir:+-C "$config_dir"} config "$@" + + # If --worktree is provided, use it to configure/unconfigure + is_worktree= + if test "$1" = --worktree + then + is_worktree=1 + shift + fi + + test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} ${is_worktree:+--worktree} '$1'" && + git ${config_dir:+-C "$config_dir"} config ${is_worktree:+--worktree} "$@" } test_config_global () {
-- gitgitgadget