[thirdparty/git.git] / list-objects-filter-options.c

#include "cache.h"
#include "commit.h"
#include "config.h"
#include "revision.h"
#include "argv-array.h"
#include "list-objects.h"
#include "list-objects-filter.h"
#include "list-objects-filter-options.h"
#include "promisor-remote.h"
#include "trace.h"
#include "url.h"

static int parse_combine_filter(
	struct list_objects_filter_options *filter_options,
	const char *arg,
	struct strbuf *errbuf);

/*
 * Parse value of the argument to the "filter" keyword.
 * On the command line this looks like:
 *       --filter=<arg>
 * and in the pack protocol as:
 *       "filter" SP <arg>
 *
 * The filter keyword will be used by many commands.
 * See Documentation/rev-list-options.txt for allowed values for <arg>.
 *
 * Capture the given arg as the "filter_spec".  This can be forwarded to
 * subordinate commands when necessary (although it's better to pass it through
 * expand_list_objects_filter_spec() first).  We also "intern" the arg for the
 * convenience of the current command.
 */
static int gently_parse_list_objects_filter(
	struct list_objects_filter_options *filter_options,
	const char *arg,
	struct strbuf *errbuf)
{
	const char *v0;

	if (!arg)
		return 0;

	if (filter_options->choice)
		BUG("filter_options already populated");

	if (!strcmp(arg, "blob:none")) {
		filter_options->choice = LOFC_BLOB_NONE;
		return 0;

	} else if (skip_prefix(arg, "blob:limit=", &v0)) {
		if (git_parse_ulong(v0, &filter_options->blob_limit_value)) {
			filter_options->choice = LOFC_BLOB_LIMIT;
			return 0;
		}

	} else if (skip_prefix(arg, "tree:", &v0)) {
		if (!git_parse_ulong(v0, &filter_options->tree_exclude_depth)) {
			strbuf_addstr(errbuf, _("expected 'tree:<depth>'"));
			return 1;
		}
		filter_options->choice = LOFC_TREE_DEPTH;
		return 0;

	} else if (skip_prefix(arg, "sparse:oid=", &v0)) {
		struct object_context oc;
		struct object_id sparse_oid;

		/*
		 * Try to parse <oid-expression> into an OID for the current
		 * command, but DO NOT complain if we don't have the blob or
		 * ref locally.
		 */
		if (!get_oid_with_context(the_repository, v0, GET_OID_BLOB,
					  &sparse_oid, &oc))
			filter_options->sparse_oid_value = oiddup(&sparse_oid);
		filter_options->choice = LOFC_SPARSE_OID;
		return 0;

	} else if (skip_prefix(arg, "sparse:path=", &v0)) {
		if (errbuf) {
			strbuf_addstr(
				errbuf,
				_("sparse:path filters support has been dropped"));
		}
		return 1;

	} else if (skip_prefix(arg, "combine:", &v0)) {
		return parse_combine_filter(filter_options, v0, errbuf);

	}
	/*
	 * Please update _git_fetch() in git-completion.bash when you
	 * add new filters
	 */

	strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg);

	memset(filter_options, 0, sizeof(*filter_options));
	return 1;
}

static const char *RESERVED_NON_WS = "~`!@#$^&*()[]{}\\;'\",<>?";

static int has_reserved_character(
	struct strbuf *sub_spec, struct strbuf *errbuf)
{
	const char *c = sub_spec->buf;
	while (*c) {
		if (*c <= ' ' || strchr(RESERVED_NON_WS, *c)) {
			strbuf_addf(
				errbuf,
				_("must escape char in sub-filter-spec: '%c'"),
				*c);
			return 1;
		}
		c++;
	}

	return 0;
}

static int parse_combine_subfilter(
	struct list_objects_filter_options *filter_options,
	struct strbuf *subspec,
	struct strbuf *errbuf)
{
	size_t new_index = filter_options->sub_nr;
	char *decoded;
	int result;

	ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
		      filter_options->sub_alloc);

	decoded = url_percent_decode(subspec->buf);

	result = has_reserved_character(subspec, errbuf) ||
		gently_parse_list_objects_filter(
			&filter_options->sub[new_index], decoded, errbuf);

	free(decoded);
	return result;
}

static int parse_combine_filter(
	struct list_objects_filter_options *filter_options,
	const char *arg,
	struct strbuf *errbuf)
{
	struct strbuf **subspecs = strbuf_split_str(arg, '+', 0);
	size_t sub;
	int result = 0;

	if (!subspecs[0]) {
		strbuf_addstr(errbuf, _("expected something after combine:"));
		result = 1;
		goto cleanup;
	}

	for (sub = 0; subspecs[sub] && !result; sub++) {
		if (subspecs[sub + 1]) {
			/*
			 * This is not the last subspec. Remove trailing "+" so
			 * we can parse it.
			 */
			size_t last = subspecs[sub]->len - 1;
			assert(subspecs[sub]->buf[last] == '+');
			strbuf_remove(subspecs[sub], last, 1);
		}
		result = parse_combine_subfilter(
			filter_options, subspecs[sub], errbuf);
	}

	filter_options->choice = LOFC_COMBINE;

cleanup:
	strbuf_list_free(subspecs);
	if (result) {
		list_objects_filter_release(filter_options);
		memset(filter_options, 0, sizeof(*filter_options));
	}
	return result;
}

static int allow_unencoded(char ch)
{
	if (ch <= ' ' || ch == '%' || ch == '+')
		return 0;
	return !strchr(RESERVED_NON_WS, ch);
}

static void filter_spec_append_urlencode(
	struct list_objects_filter_options *filter, const char *raw)
{
	struct strbuf buf = STRBUF_INIT;
	strbuf_addstr_urlencode(&buf, raw, allow_unencoded);
	trace_printf("Add to combine filter-spec: %s\n", buf.buf);
	string_list_append(&filter->filter_spec, strbuf_detach(&buf, NULL));
}

/*
 * Changes filter_options into an equivalent LOFC_COMBINE filter options
 * instance. Does not do anything if filter_options is already LOFC_COMBINE.
 */
static void transform_to_combine_type(
	struct list_objects_filter_options *filter_options)
{
	assert(filter_options->choice);
	if (filter_options->choice == LOFC_COMBINE)
		return;
	{
		const int initial_sub_alloc = 2;
		struct list_objects_filter_options *sub_array =
			xcalloc(initial_sub_alloc, sizeof(*sub_array));
		sub_array[0] = *filter_options;
		memset(filter_options, 0, sizeof(*filter_options));
		filter_options->sub = sub_array;
		filter_options->sub_alloc = initial_sub_alloc;
	}
	filter_options->sub_nr = 1;
	filter_options->choice = LOFC_COMBINE;
	string_list_append(&filter_options->filter_spec, xstrdup("combine:"));
	filter_spec_append_urlencode(
		filter_options,
		list_objects_filter_spec(&filter_options->sub[0]));
	/*
	 * We don't need the filter_spec strings for subfilter specs, only the
	 * top level.
	 */
	string_list_clear(&filter_options->sub[0].filter_spec, /*free_util=*/0);
}

void list_objects_filter_die_if_populated(
	struct list_objects_filter_options *filter_options)
{
	if (filter_options->choice)
		die(_("multiple filter-specs cannot be combined"));
}

void parse_list_objects_filter(
	struct list_objects_filter_options *filter_options,
	const char *arg)
{
	struct strbuf errbuf = STRBUF_INIT;
	int parse_error;

	if (!filter_options->choice) {
		string_list_append(&filter_options->filter_spec, xstrdup(arg));

		parse_error = gently_parse_list_objects_filter(
			filter_options, arg, &errbuf);
	} else {
		/*
		 * Make filter_options an LOFC_COMBINE spec so we can trivially
		 * add subspecs to it.
		 */
		transform_to_combine_type(filter_options);

		string_list_append(&filter_options->filter_spec, xstrdup("+"));
		filter_spec_append_urlencode(filter_options, arg);
		ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
			      filter_options->sub_alloc);

		parse_error = gently_parse_list_objects_filter(
			&filter_options->sub[filter_options->sub_nr - 1], arg,
			&errbuf);
	}
	if (parse_error)
		die("%s", errbuf.buf);
}

int opt_parse_list_objects_filter(const struct option *opt,
				  const char *arg, int unset)
{
	struct list_objects_filter_options *filter_options = opt->value;

	if (unset || !arg)
		list_objects_filter_set_no_filter(filter_options);
	else
		parse_list_objects_filter(filter_options, arg);
	return 0;
}

const char *list_objects_filter_spec(struct list_objects_filter_options *filter)
{
	if (!filter->filter_spec.nr)
		BUG("no filter_spec available for this filter");
	if (filter->filter_spec.nr != 1) {
		struct strbuf concatted = STRBUF_INIT;
		strbuf_add_separated_string_list(
			&concatted, "", &filter->filter_spec);
		string_list_clear(&filter->filter_spec, /*free_util=*/0);
		string_list_append(
			&filter->filter_spec, strbuf_detach(&concatted, NULL));
	}

	return filter->filter_spec.items[0].string;
}

const char *expand_list_objects_filter_spec(
	struct list_objects_filter_options *filter)
{
	if (filter->choice == LOFC_BLOB_LIMIT) {
		struct strbuf expanded_spec = STRBUF_INIT;
		strbuf_addf(&expanded_spec, "blob:limit=%lu",
			    filter->blob_limit_value);
		string_list_clear(&filter->filter_spec, /*free_util=*/0);
		string_list_append(
			&filter->filter_spec,
			strbuf_detach(&expanded_spec, NULL));
	}

	return list_objects_filter_spec(filter);
}

void list_objects_filter_release(
	struct list_objects_filter_options *filter_options)
{
	size_t sub;

	if (!filter_options)
		return;
	string_list_clear(&filter_options->filter_spec, /*free_util=*/0);
	free(filter_options->sparse_oid_value);
	for (sub = 0; sub < filter_options->sub_nr; sub++)
		list_objects_filter_release(&filter_options->sub[sub]);
	free(filter_options->sub);
	memset(filter_options, 0, sizeof(*filter_options));
}

void partial_clone_register(
	const char *remote,
	struct list_objects_filter_options *filter_options)
{
	char *cfg_name;
	char *filter_name;

	/* Check if it is already registered */
	if (!promisor_remote_find(remote)) {
		git_config_set("core.repositoryformatversion", "1");

		/* Add promisor config for the remote */
		cfg_name = xstrfmt("remote.%s.promisor", remote);
		git_config_set(cfg_name, "true");
		free(cfg_name);
	}

	/*
	 * Record the initial filter-spec in the config as
	 * the default for subsequent fetches from this remote.
	 */
	filter_name = xstrfmt("remote.%s.partialclonefilter", remote);
	/* NEEDSWORK: 'expand' result leaking??? */
	git_config_set(filter_name,
		       expand_list_objects_filter_spec(filter_options));
	free(filter_name);

	/* Make sure the config info are reset */
	promisor_remote_reinit();
}

void partial_clone_get_default_filter_spec(
	struct list_objects_filter_options *filter_options,
	const char *remote)
{
	struct promisor_remote *promisor = promisor_remote_find(remote);
	struct strbuf errbuf = STRBUF_INIT;

	/*
	 * Parse default value, but silently ignore it if it is invalid.
	 */
	if (!promisor)
		return;

	string_list_append(&filter_options->filter_spec,
			   promisor->partial_clone_filter);
	gently_parse_list_objects_filter(filter_options,
					 promisor->partial_clone_filter,
					 &errbuf);
	strbuf_release(&errbuf);
}
Commit	Line	Data
25ec7bca JH	1	#include "cache.h"
	2	#include "commit.h"
	3	#include "config.h"
	4	#include "revision.h"
	5	#include "argv-array.h"
	6	#include "list-objects.h"
	7	#include "list-objects-filter.h"
	8	#include "list-objects-filter-options.h"
b14ed5ad	9	#include "promisor-remote.h"
489fc9ee	10	#include "trace.h"
e987df5f MD	11	#include "url.h"
	12
	13	static int parse_combine_filter(
	14	struct list_objects_filter_options *filter_options,
	15	const char *arg,
	16	struct strbuf *errbuf);
25ec7bca JH	17
25ec7bca JH	18	/*
1dde5fa2	19	* Parse value of the argument to the "filter" keyword.
25ec7bca JH	20	* On the command line this looks like:
	21	* --filter=<arg>
	22	* and in the pack protocol as:
	23	* "filter" SP <arg>
	24	*
	25	* The filter keyword will be used by many commands.
	26	* See Documentation/rev-list-options.txt for allowed values for <arg>.
	27	*
	28	* Capture the given arg as the "filter_spec". This can be forwarded to
87c2d9d3 JS	29	* subordinate commands when necessary (although it's better to pass it through
	30	* expand_list_objects_filter_spec() first). We also "intern" the arg for the
	31	* convenience of the current command.
25ec7bca	32	*/
1e1e39b3 JH	33	static int gently_parse_list_objects_filter(
	34	struct list_objects_filter_options *filter_options,
	35	const char *arg,
	36	struct strbuf *errbuf)
25ec7bca JH	37	{
	38	const char *v0;
	39
fa3d1b63 CC	40	if (!arg)
	41	return 0;
	42
f56f7642 MD	43	if (filter_options->choice)
f56f7642 MD	44	BUG("filter_options already populated");
25ec7bca JH	45
	46	if (!strcmp(arg, "blob:none")) {
	47	filter_options->choice = LOFC_BLOB_NONE;
	48	return 0;
25ec7bca	49
1e1e39b3 JH	50	} else if (skip_prefix(arg, "blob:limit=", &v0)) {
	51	if (git_parse_ulong(v0, &filter_options->blob_limit_value)) {
	52	filter_options->choice = LOFC_BLOB_LIMIT;
	53	return 0;
	54	}
25ec7bca	55
bc5975d2	56	} else if (skip_prefix(arg, "tree:", &v0)) {
c813a7c3	57	if (!git_parse_ulong(v0, &filter_options->tree_exclude_depth)) {
842b0051	58	strbuf_addstr(errbuf, _("expected 'tree:<depth>'"));
bc5975d2 MD	59	return 1;
bc5975d2 MD	60	}
c813a7c3	61	filter_options->choice = LOFC_TREE_DEPTH;
bc5975d2 MD	62	return 0;
bc5975d2 MD	63
1e1e39b3	64	} else if (skip_prefix(arg, "sparse:oid=", &v0)) {
25ec7bca JH	65	struct object_context oc;
	66	struct object_id sparse_oid;
	67
	68	/*
	69	* Try to parse <oid-expression> into an OID for the current
	70	* command, but DO NOT complain if we don't have the blob or
	71	* ref locally.
	72	*/
3a7a698e	73	if (!get_oid_with_context(the_repository, v0, GET_OID_BLOB,
25ec7bca JH	74	&sparse_oid, &oc))
	75	filter_options->sparse_oid_value = oiddup(&sparse_oid);
	76	filter_options->choice = LOFC_SPARSE_OID;
	77	return 0;
25ec7bca	78
1e1e39b3	79	} else if (skip_prefix(arg, "sparse:path=", &v0)) {
e693237e CC	80	if (errbuf) {
	81	strbuf_addstr(
	82	errbuf,
	83	_("sparse:path filters support has been dropped"));
	84	}
	85	return 1;
e987df5f MD	86
	87	} else if (skip_prefix(arg, "combine:", &v0)) {
	88	return parse_combine_filter(filter_options, v0, errbuf);
	89
25ec7bca	90	}
5a59a230 NTND	91	/*
	92	* Please update _git_fetch() in git-completion.bash when you
	93	* add new filters
	94	*/
25ec7bca	95
842b0051	96	strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg);
cc0b05a4	97
1e1e39b3 JH	98	memset(filter_options, 0, sizeof(*filter_options));
	99	return 1;
	100	}
	101
e987df5f MD	102	static const char RESERVED_NON_WS = "~`!@#$^&()[]{}\\;'\",<>?";
	103
	104	static int has_reserved_character(
	105	struct strbuf sub_spec, struct strbuf errbuf)
1e1e39b3	106	{
e987df5f MD	107	const char *c = sub_spec->buf;
	108	while (*c) {
	109	if (c <= ' ' \|\| strchr(RESERVED_NON_WS, c)) {
	110	strbuf_addf(
	111	errbuf,
	112	_("must escape char in sub-filter-spec: '%c'"),
	113	*c);
	114	return 1;
	115	}
	116	c++;
	117	}
	118
25ec7bca JH	119	return 0;
	120	}
	121
e987df5f MD	122	static int parse_combine_subfilter(
	123	struct list_objects_filter_options *filter_options,
	124	struct strbuf *subspec,
	125	struct strbuf *errbuf)
	126	{
5a133e8a	127	size_t new_index = filter_options->sub_nr;
e987df5f MD	128	char *decoded;
	129	int result;
	130
5a133e8a MD	131	ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
5a133e8a MD	132	filter_options->sub_alloc);
e987df5f MD	133
	134	decoded = url_percent_decode(subspec->buf);
	135
	136	result = has_reserved_character(subspec, errbuf) \|\|
	137	gently_parse_list_objects_filter(
	138	&filter_options->sub[new_index], decoded, errbuf);
	139
	140	free(decoded);
	141	return result;
	142	}
	143
	144	static int parse_combine_filter(
	145	struct list_objects_filter_options *filter_options,
	146	const char *arg,
	147	struct strbuf *errbuf)
	148	{
	149	struct strbuf **subspecs = strbuf_split_str(arg, '+', 0);
	150	size_t sub;
	151	int result = 0;
	152
	153	if (!subspecs[0]) {
	154	strbuf_addstr(errbuf, _("expected something after combine:"));
	155	result = 1;
	156	goto cleanup;
	157	}
	158
	159	for (sub = 0; subspecs[sub] && !result; sub++) {
	160	if (subspecs[sub + 1]) {
	161	/*
	162	* This is not the last subspec. Remove trailing "+" so
	163	* we can parse it.
	164	*/
	165	size_t last = subspecs[sub]->len - 1;
	166	assert(subspecs[sub]->buf[last] == '+');
	167	strbuf_remove(subspecs[sub], last, 1);
	168	}
	169	result = parse_combine_subfilter(
	170	filter_options, subspecs[sub], errbuf);
	171	}
	172
	173	filter_options->choice = LOFC_COMBINE;
	174
	175	cleanup:
	176	strbuf_list_free(subspecs);
	177	if (result) {
	178	list_objects_filter_release(filter_options);
	179	memset(filter_options, 0, sizeof(*filter_options));
	180	}
	181	return result;
	182	}
	183
489fc9ee MD	184	static int allow_unencoded(char ch)
	185	{
	186	if (ch <= ' ' \|\| ch == '%' \|\| ch == '+')
	187	return 0;
	188	return !strchr(RESERVED_NON_WS, ch);
	189	}
	190
	191	static void filter_spec_append_urlencode(
	192	struct list_objects_filter_options filter, const char raw)
1e1e39b3 JH	193	{
1e1e39b3 JH	194	struct strbuf buf = STRBUF_INIT;
489fc9ee MD	195	strbuf_addstr_urlencode(&buf, raw, allow_unencoded);
	196	trace_printf("Add to combine filter-spec: %s\n", buf.buf);
	197	string_list_append(&filter->filter_spec, strbuf_detach(&buf, NULL));
	198	}
	199
	200	/*
	201	* Changes filter_options into an equivalent LOFC_COMBINE filter options
	202	* instance. Does not do anything if filter_options is already LOFC_COMBINE.
	203	*/
	204	static void transform_to_combine_type(
	205	struct list_objects_filter_options *filter_options)
	206	{
	207	assert(filter_options->choice);
	208	if (filter_options->choice == LOFC_COMBINE)
	209	return;
	210	{
	211	const int initial_sub_alloc = 2;
	212	struct list_objects_filter_options *sub_array =
	213	xcalloc(initial_sub_alloc, sizeof(*sub_array));
	214	sub_array[0] = *filter_options;
	215	memset(filter_options, 0, sizeof(*filter_options));
	216	filter_options->sub = sub_array;
	217	filter_options->sub_alloc = initial_sub_alloc;
	218	}
	219	filter_options->sub_nr = 1;
	220	filter_options->choice = LOFC_COMBINE;
	221	string_list_append(&filter_options->filter_spec, xstrdup("combine:"));
	222	filter_spec_append_urlencode(
	223	filter_options,
	224	list_objects_filter_spec(&filter_options->sub[0]));
	225	/*
	226	* We don't need the filter_spec strings for subfilter specs, only the
	227	* top level.
	228	*/
	229	string_list_clear(&filter_options->sub[0].filter_spec, /free_util=/0);
	230	}
	231
	232	void list_objects_filter_die_if_populated(
	233	struct list_objects_filter_options *filter_options)
	234	{
f56f7642 MD	235	if (filter_options->choice)
f56f7642 MD	236	die(_("multiple filter-specs cannot be combined"));
489fc9ee MD	237	}
489fc9ee MD	238
90d21f9e	239	void parse_list_objects_filter(
489fc9ee MD	240	struct list_objects_filter_options *filter_options,
	241	const char *arg)
	242	{
	243	struct strbuf errbuf = STRBUF_INIT;
	244	int parse_error;
	245
	246	if (!filter_options->choice) {
	247	string_list_append(&filter_options->filter_spec, xstrdup(arg));
	248
	249	parse_error = gently_parse_list_objects_filter(
	250	filter_options, arg, &errbuf);
	251	} else {
	252	/*
	253	* Make filter_options an LOFC_COMBINE spec so we can trivially
	254	* add subspecs to it.
	255	*/
	256	transform_to_combine_type(filter_options);
	257
	258	string_list_append(&filter_options->filter_spec, xstrdup("+"));
	259	filter_spec_append_urlencode(filter_options, arg);
5a133e8a MD	260	ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
5a133e8a MD	261	filter_options->sub_alloc);
489fc9ee MD	262
489fc9ee MD	263	parse_error = gently_parse_list_objects_filter(
5a133e8a MD	264	&filter_options->sub[filter_options->sub_nr - 1], arg,
5a133e8a MD	265	&errbuf);
489fc9ee MD	266	}
	267	if (parse_error)
	268	die("%s", errbuf.buf);
25ec7bca JH	269	}
	270
	271	int opt_parse_list_objects_filter(const struct option *opt,
	272	const char *arg, int unset)
	273	{
	274	struct list_objects_filter_options *filter_options = opt->value;
	275
90d21f9e	276	if (unset \|\| !arg)
aa57b871	277	list_objects_filter_set_no_filter(filter_options);
90d21f9e MD	278	else
	279	parse_list_objects_filter(filter_options, arg);
	280	return 0;
25ec7bca	281	}
4875c979	282
cf9ceb5a	283	const char list_objects_filter_spec(struct list_objects_filter_options filter)
87c2d9d3	284	{
cf9ceb5a MD	285	if (!filter->filter_spec.nr)
	286	BUG("no filter_spec available for this filter");
	287	if (filter->filter_spec.nr != 1) {
	288	struct strbuf concatted = STRBUF_INIT;
	289	strbuf_add_separated_string_list(
	290	&concatted, "", &filter->filter_spec);
	291	string_list_clear(&filter->filter_spec, /free_util=/0);
	292	string_list_append(
	293	&filter->filter_spec, strbuf_detach(&concatted, NULL));
4875c979	294	}
25ec7bca	295
cf9ceb5a	296	return filter->filter_spec.items[0].string;
25ec7bca	297	}
4875c979	298
cf9ceb5a MD	299	const char *expand_list_objects_filter_spec(
cf9ceb5a MD	300	struct list_objects_filter_options *filter)
87c2d9d3	301	{
cf9ceb5a MD	302	if (filter->choice == LOFC_BLOB_LIMIT) {
	303	struct strbuf expanded_spec = STRBUF_INIT;
	304	strbuf_addf(&expanded_spec, "blob:limit=%lu",
87c2d9d3	305	filter->blob_limit_value);
cf9ceb5a MD	306	string_list_clear(&filter->filter_spec, /free_util=/0);
	307	string_list_append(
	308	&filter->filter_spec,
	309	strbuf_detach(&expanded_spec, NULL));
	310	}
	311
	312	return list_objects_filter_spec(filter);
87c2d9d3 JS	313	}
87c2d9d3 JS	314
4875c979 JH	315	void list_objects_filter_release(
	316	struct list_objects_filter_options *filter_options)
	317	{
e987df5f MD	318	size_t sub;
	319
	320	if (!filter_options)
	321	return;
cf9ceb5a	322	string_list_clear(&filter_options->filter_spec, /free_util=/0);
4875c979	323	free(filter_options->sparse_oid_value);
e987df5f MD	324	for (sub = 0; sub < filter_options->sub_nr; sub++)
	325	list_objects_filter_release(&filter_options->sub[sub]);
	326	free(filter_options->sub);
4875c979 JH	327	memset(filter_options, 0, sizeof(*filter_options));
4875c979 JH	328	}
1e1e39b3 JH	329
	330	void partial_clone_register(
	331	const char *remote,
cf9ceb5a	332	struct list_objects_filter_options *filter_options)
1e1e39b3	333	{
b14ed5ad	334	char *cfg_name;
fa3d1b63	335	char *filter_name;
1e1e39b3	336
b14ed5ad CC	337	/* Check if it is already registered */
	338	if (!promisor_remote_find(remote)) {
	339	git_config_set("core.repositoryformatversion", "1");
1e1e39b3	340
b14ed5ad CC	341	/* Add promisor config for the remote */
	342	cfg_name = xstrfmt("remote.%s.promisor", remote);
	343	git_config_set(cfg_name, "true");
	344	free(cfg_name);
	345	}
1e1e39b3 JH	346
	347	/*
	348	* Record the initial filter-spec in the config as
	349	* the default for subsequent fetches from this remote.
	350	*/
fa3d1b63	351	filter_name = xstrfmt("remote.%s.partialclonefilter", remote);
627b8268 JH	352	/* NEEDSWORK: 'expand' result leaking??? */
	353	git_config_set(filter_name,
	354	expand_list_objects_filter_spec(filter_options));
fa3d1b63	355	free(filter_name);
b14ed5ad CC	356
	357	/* Make sure the config info are reset */
	358	promisor_remote_reinit();
1e1e39b3 JH	359	}
	360
	361	void partial_clone_get_default_filter_spec(
fa3d1b63 CC	362	struct list_objects_filter_options *filter_options,
fa3d1b63 CC	363	const char *remote)
1e1e39b3	364	{
fa3d1b63	365	struct promisor_remote *promisor = promisor_remote_find(remote);
842b0051	366	struct strbuf errbuf = STRBUF_INIT;
fa3d1b63	367
1e1e39b3 JH	368	/*
	369	* Parse default value, but silently ignore it if it is invalid.
	370	*/
627b8268	371	if (!promisor)
cac1137d	372	return;
e987df5f	373
cf9ceb5a	374	string_list_append(&filter_options->filter_spec,
627b8268	375	promisor->partial_clone_filter);
1e1e39b3	376	gently_parse_list_objects_filter(filter_options,
627b8268	377	promisor->partial_clone_filter,
842b0051 MD	378	&errbuf);
842b0051 MD	379	strbuf_release(&errbuf);
1e1e39b3	380	}