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path: root/builtin/sparse-checkout.c
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#include "builtin.h"
#include "config.h"
#include "dir.h"
#include "parse-options.h"
#include "pathspec.h"
#include "repository.h"
#include "run-command.h"
#include "strbuf.h"
 
static char const * const builtin_sparse_checkout_usage[] = {
	N_("git sparse-checkout list"),
	NULL
};
 
static char *get_sparse_checkout_filename(void)
{
	return git_pathdup("info/sparse-checkout");
}
 
static void write_patterns_to_file(FILE *fp, struct pattern_list *pl)
{
	int i;
 
	for (i = 0; i < pl->nr; i++) {
		struct path_pattern *p = pl->patterns[i];
 
		if (p->flags & PATTERN_FLAG_NEGATIVE)
			fprintf(fp, "!");
 
		fprintf(fp, "%s", p->pattern);
 
		if (p->flags & PATTERN_FLAG_MUSTBEDIR)
			fprintf(fp, "/");
 
		fprintf(fp, "\n");
	}
}
 
static int sparse_checkout_list(int argc, const char **argv)
{
	struct pattern_list pl;
	char *sparse_filename;
	int res;
 
	memset(&pl, 0, sizeof(pl));
 
	sparse_filename = get_sparse_checkout_filename();
	res = add_patterns_from_file_to_list(sparse_filename, "", 0, &pl, NULL);
	free(sparse_filename);
 
	if (res < 0) {
		warning(_("this worktree is not sparse (sparse-checkout file may not exist)"));
		return 0;
	}
 
	write_patterns_to_file(stdout, &pl);
	clear_pattern_list(&pl);
 
	return 0;
}
 
int cmd_sparse_checkout(int argc, const char **argv, const char *prefix)
{
	static struct option builtin_sparse_checkout_options[] = {
		OPT_END(),
	};
 
	if (argc == 2 && !strcmp(argv[1], "-h"))
		usage_with_options(builtin_sparse_checkout_usage,
				   builtin_sparse_checkout_options);
 
	argc = parse_options(argc, argv, prefix,
			     builtin_sparse_checkout_options,
			     builtin_sparse_checkout_usage,
			     PARSE_OPT_STOP_AT_NON_OPTION);
 
	git_config(git_default_config, NULL);
 
	if (argc > 0) {
		if (!strcmp(argv[0], "list"))
			return sparse_checkout_list(argc, argv);
	}
 
	usage_with_options(builtin_sparse_checkout_usage,
			   builtin_sparse_checkout_options);
}