[PATCH 1/2] checkout/fetch/pull/pack-objects: allow `-h` outside a repository
- From
Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
- Date
- Feb 7, 2022, 23:49 UTC
- Message-ID
- <25d1a2963f2934753de4fb6899429301637377c9.1644277797.git.gitgitgadget@gmail.com>
- In-Reply-To
- <pull.1139.git.1644277797.gitgitgadget@gmail.com>
From: Johannes Schindelin <johannes.schindelin@gmx.de>
When we taught these commands about the sparse index, we did not account for the fact that the `cmd_*()` functions _can_ be called without a gitdir, namely when `-h` is passed to show the usage.
A plausible approach to address this is to move the `prepare_repo_settings()` calls right after the `parse_options()` calls: The latter will never return when it handles `-h`, and therefore it is safe to assume that we have a `gitdir` at that point, as long as the built-in is marked with the `RUN_SETUP` flag.
However, it is unfortunately not that simple. In `cmd_pack_objects()`, for example, the repo settings need to be fully populated so that the command-line options `--sparse`/`--no-sparse` can override them, not the other way round.
Therefore, we choose to imitate the strategy taken in `cmd_diff()`, where we simply do not bother to prepare and initialize the repo settings unless we have a `gitdir`.
This fixes https://github.com/git-for-windows/git/issues/3688
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> --- builtin/checkout.c | 7 ++++--- builtin/fetch.c | 7 +++++-- builtin/pack-objects.c | 8 +++++--- builtin/pull.c | 6 ++++-- 4 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/builtin/checkout.c b/builtin/checkout.c index cc804ba8e1e..1c13d7fedb3 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1602,9 +1602,10 @@ static int checkout_main(int argc, const char **argv, const char *prefix, opts->show_progress = -1; git_config(git_checkout_config, opts); - - prepare_repo_settings(the_repository); - the_repository->settings.command_requires_full_index = 0; + if (the_repository->gitdir) { + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + } opts->track = BRANCH_TRACK_UNSPECIFIED; diff --git a/builtin/fetch.c b/builtin/fetch.c index 5f06b21f8e9..e0a05de10ee 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -2014,11 +2014,14 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) } git_config(git_fetch_config, NULL); - prepare_repo_settings(the_repository); - the_repository->settings.command_requires_full_index = 0; + if (the_repository->gitdir) { + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + } argc = parse_options(argc, argv, prefix, builtin_fetch_options, builtin_fetch_usage, 0); + if (recurse_submodules != RECURSE_SUBMODULES_OFF) { int *sfjc = submodule_fetch_jobs_config == -1 ? &submodule_fetch_jobs_config : NULL; diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index ba2006f2212..87cb7b45c37 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -3976,9 +3976,11 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) read_replace_refs = 0; sparse = git_env_bool("GIT_TEST_PACK_SPARSE", -1); - prepare_repo_settings(the_repository); - if (sparse < 0) - sparse = the_repository->settings.pack_use_sparse; + if (the_repository->gitdir) { + prepare_repo_settings(the_repository); + if (sparse < 0) + sparse = the_repository->settings.pack_use_sparse; + } reset_pack_idx_option(&pack_idx_opts); git_config(git_pack_config, NULL); diff --git a/builtin/pull.c b/builtin/pull.c index 100cbf9fb85..d15007d93f3 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -994,8 +994,10 @@ int cmd_pull(int argc, const char **argv, const char *prefix) set_reflog_message(argc, argv); git_config(git_pull_config, NULL); - prepare_repo_settings(the_repository); - the_repository->settings.command_requires_full_index = 0; + if (the_repository->gitdir) { + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + } argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0);
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