aboutsummaryrefslogtreecommitdiff
path: root/builtin/ls-remote.c
blob: 25e83cfe9de3dc3cee19f03f82b56396eb6b65de (plain)
1
2
3
4
5
6
7
8
9
10
11
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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
#include "builtin.h"
#include "cache.h"
#include "transport.h"
#include "remote.h"

static const char ls_remote_usage[] =
"git ls-remote [--heads] [--tags]  [-u <exec> | --upload-pack <exec>]\n"
"                     [-q|--quiet] [--exit-code] [--get-url] [<repository> [<refs>...]]";

/*
 * Is there one among the list of patterns that match the tail part
 * of the path?
 */
static int tail_match(const char **pattern, const char *path)
{
	const char *p;
	char pathbuf[PATH_MAX];

	if (!pattern)
		return 1; /* no restriction */

	if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
		return error("insanely long ref %.*s...", 20, path);
	while ((p = *(pattern++)) != NULL) {
		if (!fnmatch(p, pathbuf, 0))
			return 1;
	}
	return 0;
}

int cmd_ls_remote(int argc, const char **argv, const char *prefix)
{
	int i;
	const char *dest = NULL;
	unsigned flags = 0;
	int get_url = 0;
	int quiet = 0;
	int status = 0;
	const char *uploadpack = NULL;
	const char **pattern = NULL;

	struct remote *remote;
	struct transport *transport;
	const struct ref *ref;

	if (argc == 2 && !strcmp("-h", argv[1]))
		usage(ls_remote_usage);

	for (i = 1; i < argc; i++) {
		const char *arg = argv[i];

		if (*arg == '-') {
			if (!prefixcmp(arg, "--upload-pack=")) {
				uploadpack = arg + 14;
				continue;
			}
			if (!prefixcmp(arg, "--exec=")) {
				uploadpack = arg + 7;
				continue;
			}
			if (!strcmp("--tags", arg) || !strcmp("-t", arg)) {
				flags |= REF_TAGS;
				continue;
			}
			if (!strcmp("--heads", arg) || !strcmp("-h", arg)) {
				flags |= REF_HEADS;
				continue;
			}
			if (!strcmp("--refs", arg)) {
				flags |= REF_NORMAL;
				continue;
			}
			if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
				quiet = 1;
				continue;
			}
			if (!strcmp("--get-url", arg)) {
				get_url = 1;
				continue;
			}
			if (!strcmp("--exit-code", arg)) {
				/* return this code if no refs are reported */
				status = 2;
				continue;
			}
			usage(ls_remote_usage);
		}
		dest = arg;
		i++;
		break;
	}

	if (argv[i]) {
		int j;
		pattern = xcalloc(sizeof(const char *), argc - i + 1);
		for (j = i; j < argc; j++) {
			int len = strlen(argv[j]);
			char *p = xmalloc(len + 3);
			sprintf(p, "*/%s", argv[j]);
			pattern[j - i] = p;
		}
	}
	remote = remote_get(dest);
	if (!remote) {
		if (dest)
			die("bad repository '%s'", dest);
		die("No remote configured to list refs from.");
	}
	if (!remote->url_nr)
		die("remote %s has no configured URL", dest);

	if (get_url) {
		printf("%s\n", *remote->url);
		return 0;
	}

	transport = transport_get(remote, NULL);
	if (uploadpack != NULL)
		transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);

	ref = transport_get_remote_refs(transport);
	if (transport_disconnect(transport))
		return 1;

	if (!dest && !quiet)
		fprintf(stderr, "From %s\n", *remote->url);
	for ( ; ref; ref = ref->next) {
		if (!check_ref_type(ref, flags))
			continue;
		if (!tail_match(pattern, ref->name))
			continue;
		printf("%s	%s\n", sha1_to_hex(ref->old_sha1), ref->name);
		status = 0; /* we found something */
	}
	return status;
}