[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)) {
		filter_options->sparse_oid_name = xstrdup(v0);
		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_name);
	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)) {
4c96a775	65	filter_options->sparse_oid_name = xstrdup(v0);
25ec7bca JH	66	filter_options->choice = LOFC_SPARSE_OID;
25ec7bca JH	67	return 0;
25ec7bca	68
1e1e39b3	69	} else if (skip_prefix(arg, "sparse:path=", &v0)) {
e693237e CC	70	if (errbuf) {
	71	strbuf_addstr(
	72	errbuf,
	73	_("sparse:path filters support has been dropped"));
	74	}
	75	return 1;
e987df5f MD	76
	77	} else if (skip_prefix(arg, "combine:", &v0)) {
	78	return parse_combine_filter(filter_options, v0, errbuf);
	79
25ec7bca	80	}
5a59a230 NTND	81	/*
	82	* Please update _git_fetch() in git-completion.bash when you
	83	* add new filters
	84	*/
25ec7bca	85
842b0051	86	strbuf_addf(errbuf, _("invalid filter-spec '%s'"), arg);
cc0b05a4	87
1e1e39b3 JH	88	memset(filter_options, 0, sizeof(*filter_options));
	89	return 1;
	90	}
	91
e987df5f MD	92	static const char RESERVED_NON_WS = "~`!@#$^&()[]{}\\;'\",<>?";
	93
	94	static int has_reserved_character(
	95	struct strbuf sub_spec, struct strbuf errbuf)
1e1e39b3	96	{
e987df5f MD	97	const char *c = sub_spec->buf;
	98	while (*c) {
	99	if (c <= ' ' \|\| strchr(RESERVED_NON_WS, c)) {
	100	strbuf_addf(
	101	errbuf,
	102	_("must escape char in sub-filter-spec: '%c'"),
	103	*c);
	104	return 1;
	105	}
	106	c++;
	107	}
	108
25ec7bca JH	109	return 0;
	110	}
	111
e987df5f MD	112	static int parse_combine_subfilter(
	113	struct list_objects_filter_options *filter_options,
	114	struct strbuf *subspec,
	115	struct strbuf *errbuf)
	116	{
5a133e8a	117	size_t new_index = filter_options->sub_nr;
e987df5f MD	118	char *decoded;
	119	int result;
	120
5a133e8a MD	121	ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
5a133e8a MD	122	filter_options->sub_alloc);
e987df5f MD	123
	124	decoded = url_percent_decode(subspec->buf);
	125
	126	result = has_reserved_character(subspec, errbuf) \|\|
	127	gently_parse_list_objects_filter(
	128	&filter_options->sub[new_index], decoded, errbuf);
	129
	130	free(decoded);
	131	return result;
	132	}
	133
	134	static int parse_combine_filter(
	135	struct list_objects_filter_options *filter_options,
	136	const char *arg,
	137	struct strbuf *errbuf)
	138	{
	139	struct strbuf **subspecs = strbuf_split_str(arg, '+', 0);
	140	size_t sub;
	141	int result = 0;
	142
	143	if (!subspecs[0]) {
	144	strbuf_addstr(errbuf, _("expected something after combine:"));
	145	result = 1;
	146	goto cleanup;
	147	}
	148
	149	for (sub = 0; subspecs[sub] && !result; sub++) {
	150	if (subspecs[sub + 1]) {
	151	/*
	152	* This is not the last subspec. Remove trailing "+" so
	153	* we can parse it.
	154	*/
	155	size_t last = subspecs[sub]->len - 1;
	156	assert(subspecs[sub]->buf[last] == '+');
	157	strbuf_remove(subspecs[sub], last, 1);
	158	}
	159	result = parse_combine_subfilter(
	160	filter_options, subspecs[sub], errbuf);
	161	}
	162
	163	filter_options->choice = LOFC_COMBINE;
	164
	165	cleanup:
	166	strbuf_list_free(subspecs);
	167	if (result) {
	168	list_objects_filter_release(filter_options);
	169	memset(filter_options, 0, sizeof(*filter_options));
	170	}
	171	return result;
	172	}
	173
489fc9ee MD	174	static int allow_unencoded(char ch)
	175	{
	176	if (ch <= ' ' \|\| ch == '%' \|\| ch == '+')
	177	return 0;
	178	return !strchr(RESERVED_NON_WS, ch);
	179	}
	180
	181	static void filter_spec_append_urlencode(
	182	struct list_objects_filter_options filter, const char raw)
1e1e39b3 JH	183	{
1e1e39b3 JH	184	struct strbuf buf = STRBUF_INIT;
489fc9ee MD	185	strbuf_addstr_urlencode(&buf, raw, allow_unencoded);
	186	trace_printf("Add to combine filter-spec: %s\n", buf.buf);
	187	string_list_append(&filter->filter_spec, strbuf_detach(&buf, NULL));
	188	}
	189
	190	/*
	191	* Changes filter_options into an equivalent LOFC_COMBINE filter options
	192	* instance. Does not do anything if filter_options is already LOFC_COMBINE.
	193	*/
	194	static void transform_to_combine_type(
	195	struct list_objects_filter_options *filter_options)
	196	{
	197	assert(filter_options->choice);
	198	if (filter_options->choice == LOFC_COMBINE)
	199	return;
	200	{
	201	const int initial_sub_alloc = 2;
	202	struct list_objects_filter_options *sub_array =
	203	xcalloc(initial_sub_alloc, sizeof(*sub_array));
	204	sub_array[0] = *filter_options;
	205	memset(filter_options, 0, sizeof(*filter_options));
	206	filter_options->sub = sub_array;
	207	filter_options->sub_alloc = initial_sub_alloc;
	208	}
	209	filter_options->sub_nr = 1;
	210	filter_options->choice = LOFC_COMBINE;
	211	string_list_append(&filter_options->filter_spec, xstrdup("combine:"));
	212	filter_spec_append_urlencode(
	213	filter_options,
	214	list_objects_filter_spec(&filter_options->sub[0]));
	215	/*
	216	* We don't need the filter_spec strings for subfilter specs, only the
	217	* top level.
	218	*/
	219	string_list_clear(&filter_options->sub[0].filter_spec, /free_util=/0);
	220	}
	221
	222	void list_objects_filter_die_if_populated(
	223	struct list_objects_filter_options *filter_options)
	224	{
f56f7642 MD	225	if (filter_options->choice)
f56f7642 MD	226	die(_("multiple filter-specs cannot be combined"));
489fc9ee MD	227	}
489fc9ee MD	228
90d21f9e	229	void parse_list_objects_filter(
489fc9ee MD	230	struct list_objects_filter_options *filter_options,
	231	const char *arg)
	232	{
	233	struct strbuf errbuf = STRBUF_INIT;
	234	int parse_error;
	235
	236	if (!filter_options->choice) {
	237	string_list_append(&filter_options->filter_spec, xstrdup(arg));
	238
	239	parse_error = gently_parse_list_objects_filter(
	240	filter_options, arg, &errbuf);
	241	} else {
	242	/*
	243	* Make filter_options an LOFC_COMBINE spec so we can trivially
	244	* add subspecs to it.
	245	*/
	246	transform_to_combine_type(filter_options);
	247
	248	string_list_append(&filter_options->filter_spec, xstrdup("+"));
	249	filter_spec_append_urlencode(filter_options, arg);
5a133e8a MD	250	ALLOC_GROW_BY(filter_options->sub, filter_options->sub_nr, 1,
5a133e8a MD	251	filter_options->sub_alloc);
489fc9ee MD	252
489fc9ee MD	253	parse_error = gently_parse_list_objects_filter(
5a133e8a MD	254	&filter_options->sub[filter_options->sub_nr - 1], arg,
5a133e8a MD	255	&errbuf);
489fc9ee MD	256	}
	257	if (parse_error)
	258	die("%s", errbuf.buf);
25ec7bca JH	259	}
	260
	261	int opt_parse_list_objects_filter(const struct option *opt,
	262	const char *arg, int unset)
	263	{
	264	struct list_objects_filter_options *filter_options = opt->value;
	265
90d21f9e	266	if (unset \|\| !arg)
aa57b871	267	list_objects_filter_set_no_filter(filter_options);
90d21f9e MD	268	else
	269	parse_list_objects_filter(filter_options, arg);
	270	return 0;
25ec7bca	271	}
4875c979	272
cf9ceb5a	273	const char list_objects_filter_spec(struct list_objects_filter_options filter)
87c2d9d3	274	{
cf9ceb5a MD	275	if (!filter->filter_spec.nr)
	276	BUG("no filter_spec available for this filter");
	277	if (filter->filter_spec.nr != 1) {
	278	struct strbuf concatted = STRBUF_INIT;
	279	strbuf_add_separated_string_list(
	280	&concatted, "", &filter->filter_spec);
	281	string_list_clear(&filter->filter_spec, /free_util=/0);
	282	string_list_append(
	283	&filter->filter_spec, strbuf_detach(&concatted, NULL));
4875c979	284	}
25ec7bca	285
cf9ceb5a	286	return filter->filter_spec.items[0].string;
25ec7bca	287	}
4875c979	288
cf9ceb5a MD	289	const char *expand_list_objects_filter_spec(
cf9ceb5a MD	290	struct list_objects_filter_options *filter)
87c2d9d3	291	{
cf9ceb5a MD	292	if (filter->choice == LOFC_BLOB_LIMIT) {
	293	struct strbuf expanded_spec = STRBUF_INIT;
	294	strbuf_addf(&expanded_spec, "blob:limit=%lu",
87c2d9d3	295	filter->blob_limit_value);
cf9ceb5a MD	296	string_list_clear(&filter->filter_spec, /free_util=/0);
	297	string_list_append(
	298	&filter->filter_spec,
	299	strbuf_detach(&expanded_spec, NULL));
	300	}
	301
	302	return list_objects_filter_spec(filter);
87c2d9d3 JS	303	}
87c2d9d3 JS	304
4875c979 JH	305	void list_objects_filter_release(
	306	struct list_objects_filter_options *filter_options)
	307	{
e987df5f MD	308	size_t sub;
	309
	310	if (!filter_options)
	311	return;
cf9ceb5a	312	string_list_clear(&filter_options->filter_spec, /free_util=/0);
4c96a775	313	free(filter_options->sparse_oid_name);
e987df5f MD	314	for (sub = 0; sub < filter_options->sub_nr; sub++)
	315	list_objects_filter_release(&filter_options->sub[sub]);
	316	free(filter_options->sub);
4875c979 JH	317	memset(filter_options, 0, sizeof(*filter_options));
4875c979 JH	318	}
1e1e39b3 JH	319
	320	void partial_clone_register(
	321	const char *remote,
cf9ceb5a	322	struct list_objects_filter_options *filter_options)
1e1e39b3	323	{
b14ed5ad	324	char *cfg_name;
fa3d1b63	325	char *filter_name;
1e1e39b3	326
b14ed5ad CC	327	/* Check if it is already registered */
	328	if (!promisor_remote_find(remote)) {
	329	git_config_set("core.repositoryformatversion", "1");
1e1e39b3	330
b14ed5ad CC	331	/* Add promisor config for the remote */
	332	cfg_name = xstrfmt("remote.%s.promisor", remote);
	333	git_config_set(cfg_name, "true");
	334	free(cfg_name);
	335	}
1e1e39b3 JH	336
	337	/*
	338	* Record the initial filter-spec in the config as
	339	* the default for subsequent fetches from this remote.
	340	*/
fa3d1b63	341	filter_name = xstrfmt("remote.%s.partialclonefilter", remote);
627b8268 JH	342	/* NEEDSWORK: 'expand' result leaking??? */
	343	git_config_set(filter_name,
	344	expand_list_objects_filter_spec(filter_options));
fa3d1b63	345	free(filter_name);
b14ed5ad CC	346
	347	/* Make sure the config info are reset */
	348	promisor_remote_reinit();
1e1e39b3 JH	349	}
	350
	351	void partial_clone_get_default_filter_spec(
fa3d1b63 CC	352	struct list_objects_filter_options *filter_options,
fa3d1b63 CC	353	const char *remote)
1e1e39b3	354	{
fa3d1b63	355	struct promisor_remote *promisor = promisor_remote_find(remote);
842b0051	356	struct strbuf errbuf = STRBUF_INIT;
fa3d1b63	357
1e1e39b3 JH	358	/*
	359	* Parse default value, but silently ignore it if it is invalid.
	360	*/
627b8268	361	if (!promisor)
cac1137d	362	return;
e987df5f	363
cf9ceb5a	364	string_list_append(&filter_options->filter_spec,
627b8268	365	promisor->partial_clone_filter);
1e1e39b3	366	gently_parse_list_objects_filter(filter_options,
627b8268	367	promisor->partial_clone_filter,
842b0051 MD	368	&errbuf);
842b0051 MD	369	strbuf_release(&errbuf);
1e1e39b3	370	}