list-objects-filter-options.c 2.47 KB
Newer Older
1 2 3 4 5 6 7 8 9 10
#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"

/*
11
 * Parse value of the argument to the "filter" keyword.
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
 * 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.  We also "intern" the arg for
 * the convenience of the current command.
 */
int parse_list_objects_filter(struct list_objects_filter_options *filter_options,
			      const char *arg)
{
	const char *v0;

	if (filter_options->choice)
		die(_("multiple object filter types cannot be combined"));

	filter_options->filter_spec = strdup(arg);

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

	if (skip_prefix(arg, "blob:limit=", &v0)) {
		if (!git_parse_ulong(v0, &filter_options->blob_limit_value))
			die(_("invalid filter-spec expression '%s'"), arg);
		filter_options->choice = LOFC_BLOB_LIMIT;
		return 0;
	}

	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(v0, GET_OID_BLOB,
					  &sparse_oid, &oc))
			filter_options->sparse_oid_value = oiddup(&sparse_oid);
		filter_options->choice = LOFC_SPARSE_OID;
		return 0;
	}

	if (skip_prefix(arg, "sparse:path=", &v0)) {
		filter_options->choice = LOFC_SPARSE_PATH;
		filter_options->sparse_path_value = strdup(v0);
		return 0;
	}

	die(_("invalid filter-spec expression '%s'"), arg);
	return 0;
}

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

77 78 79 80
	if (unset || !arg) {
		list_objects_filter_release(filter_options);
		return 0;
	}
81 82 83

	return parse_list_objects_filter(filter_options, arg);
}
84 85 86 87 88 89 90 91 92

void list_objects_filter_release(
	struct list_objects_filter_options *filter_options)
{
	free(filter_options->filter_spec);
	free(filter_options->sparse_oid_value);
	free(filter_options->sparse_path_value);
	memset(filter_options, 0, sizeof(*filter_options));
}