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builtin/submodule: allow cloning with different ref storage format

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As submodules are proper self-contained repositories, it is perfectly
valid for them to have a different ref storage format than their parent
repository. There is no obvious way for users to ask for the ref storage
format when initializing submodules though. Whether the setup of such
mixed-ref-storage-format constellations is all that useful remains to be
seen. But there is no good reason to not expose such an option, and we
will require it in a subsequent patch.

Introduce a new `--ref-format=` option for git-submodule(1) that allows
the user to pick the ref storage format. This option will also be used
in a subsequent commit, where we start to propagate the same flag from
git-clone(1) to cloning submodules with the `--recursive` switch.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2024-08-08 09:35:32 +02:00
committed by Junio C Hamano
parent d9ab8788e1
commit 5ac781ad62
4 changed files with 84 additions and 1 deletions
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30
builtin/submodule--helper.c
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@ -1532,6 +1532,7 @@ struct module_clone_data {
const char *url;
const char *depth;
struct list_objects_filter_options *filter_options;
enum ref_storage_format ref_storage_format;
unsigned int quiet: 1;
unsigned int progress: 1;
unsigned int dissociate: 1;
@ -1540,6 +1541,7 @@ struct module_clone_data {
};
#define MODULE_CLONE_DATA_INIT { \
.single_branch = -1, \
.ref_storage_format = REF_STORAGE_FORMAT_UNKNOWN, \
}
struct submodule_alternate_setup {
@ -1738,6 +1740,9 @@ static int clone_submodule(const struct module_clone_data *clone_data,
strvec_pushl(&cp.args, "--reference",
item->string, NULL);
}
if (clone_data->ref_storage_format != REF_STORAGE_FORMAT_UNKNOWN)
strvec_pushf(&cp.args, "--ref-format=%s",
ref_storage_format_to_name(clone_data->ref_storage_format));
if (clone_data->dissociate)
strvec_push(&cp.args, "--dissociate");
if (sm_gitdir && *sm_gitdir)
@ -1832,6 +1837,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
struct string_list reference = STRING_LIST_INIT_NODUP;
struct list_objects_filter_options filter_options =
LIST_OBJECTS_FILTER_INIT;
const char *ref_storage_format = NULL;
struct option module_clone_options[] = {
OPT_STRING(0, "prefix", &clone_data.prefix,
@ -1849,6 +1855,8 @@ static int module_clone(int argc, const char **argv, const char *prefix)
OPT_STRING_LIST(0, "reference", &reference,
N_("repo"),
N_("reference repository")),
OPT_STRING(0, "ref-format", &ref_storage_format, N_("format"),
N_("specify the reference format to use")),
OPT_BOOL(0, "dissociate", &dissociate,
N_("use --reference only while cloning")),
OPT_STRING(0, "depth", &clone_data.depth,
@ -1875,6 +1883,11 @@ static int module_clone(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, module_clone_options,
git_submodule_helper_usage, 0);
if (ref_storage_format) {
clone_data.ref_storage_format = ref_storage_format_by_name(ref_storage_format);
if (clone_data.ref_storage_format == REF_STORAGE_FORMAT_UNKNOWN)
die(_("unknown ref storage format '%s'"), ref_storage_format);
}
clone_data.dissociate = !!dissociate;
clone_data.quiet = !!quiet;
clone_data.progress = !!progress;
@ -1974,6 +1987,7 @@ struct update_data {
struct submodule_update_strategy update_strategy;
struct list_objects_filter_options *filter_options;
struct module_list list;
enum ref_storage_format ref_storage_format;
int depth;
int max_jobs;
int single_branch;
@ -1997,6 +2011,7 @@ struct update_data {
#define UPDATE_DATA_INIT { \
.update_strategy = SUBMODULE_UPDATE_STRATEGY_INIT, \
.list = MODULE_LIST_INIT, \
.ref_storage_format = REF_STORAGE_FORMAT_UNKNOWN, \
.recommend_shallow = -1, \
.references = STRING_LIST_INIT_DUP, \
.single_branch = -1, \
@ -2132,6 +2147,9 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
expand_list_objects_filter_spec(suc->update_data->filter_options));
if (suc->update_data->require_init)
strvec_push(&child->args, "--require-init");
if (suc->update_data->ref_storage_format != REF_STORAGE_FORMAT_UNKNOWN)
strvec_pushf(&child->args, "--ref-format=%s",
ref_storage_format_to_name(suc->update_data->ref_storage_format));
strvec_pushl(&child->args, "--path", sub->path, NULL);
strvec_pushl(&child->args, "--name", sub->name, NULL);
strvec_pushl(&child->args, "--url", url, NULL);
@ -2562,6 +2580,9 @@ static void update_data_to_args(const struct update_data *update_data,
for_each_string_list_item(item, &update_data->references)
strvec_pushl(args, "--reference", item->string, NULL);
}
if (update_data->ref_storage_format != REF_STORAGE_FORMAT_UNKNOWN)
strvec_pushf(args, "--ref-format=%s",
ref_storage_format_to_name(update_data->ref_storage_format));
if (update_data->filter_options && update_data->filter_options->choice)
strvec_pushf(args, "--filter=%s",
expand_list_objects_filter_spec(
@ -2737,6 +2758,7 @@ static int module_update(int argc, const char **argv, const char *prefix)
struct update_data opt = UPDATE_DATA_INIT;
struct list_objects_filter_options filter_options =
LIST_OBJECTS_FILTER_INIT;
const char *ref_storage_format = NULL;
int ret;
struct option module_update_options[] = {
OPT__SUPER_PREFIX(&opt.super_prefix),
@ -2760,6 +2782,8 @@ static int module_update(int argc, const char **argv, const char *prefix)
SM_UPDATE_REBASE),
OPT_STRING_LIST(0, "reference", &opt.references, N_("repo"),
N_("reference repository")),
OPT_STRING(0, "ref-format", &ref_storage_format, N_("format"),
N_("specify the reference format to use")),
OPT_BOOL(0, "dissociate", &opt.dissociate,
N_("use --reference only while cloning")),
OPT_INTEGER(0, "depth", &opt.depth,
@ -2803,6 +2827,12 @@ static int module_update(int argc, const char **argv, const char *prefix)
module_update_options);
}
if (ref_storage_format) {
opt.ref_storage_format = ref_storage_format_by_name(ref_storage_format);
if (opt.ref_storage_format == REF_STORAGE_FORMAT_UNKNOWN)
die(_("unknown ref storage format '%s'"), ref_storage_format);
}
opt.filter_options = &filter_options;
opt.prefix = prefix;