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1 #include "git-compat-util.h"
2 #include "protocol-caps.h"
3 #include "gettext.h"
4 #include "pkt-line.h"
5 #include "strvec.h"
6 #include "hash.h"
7 #include "object.h"
8 #include "object-store.h"
9 #include "string-list.h"
10 #include "strbuf.h"
11
12 struct requested_info {
13 unsigned size : 1;
14 };
15
16 /*
17 * Parses oids from the given line and collects them in the given
18 * oid_str_list. Returns 1 if parsing was successful and 0 otherwise.
19 */
20 static int parse_oid(const char *line, struct string_list *oid_str_list)
21 {
22 const char *arg;
23
24 if (!skip_prefix(line, "oid ", &arg))
25 return 0;
26
27 string_list_append(oid_str_list, arg);
28
29 return 1;
30 }
31
32 /*
33 * Validates and send requested info back to the client. Any errors detected
34 * are returned as they are detected.
35 */
36 static void send_info(struct repository *r, struct packet_writer *writer,
37 struct string_list *oid_str_list,
38 struct requested_info *info)
39 {
40 struct string_list_item *item;
41 struct strbuf send_buffer = STRBUF_INIT;
42
43 if (!oid_str_list->nr)
44 return;
45
46 if (info->size)
47 packet_writer_write(writer, "size");
48
49 for_each_string_list_item (item, oid_str_list) {
50 const char *oid_str = item->string;
51 struct object_id oid;
52 unsigned long object_size;
53
54 if (get_oid_hex(oid_str, &oid) < 0) {
55 packet_writer_error(
56 writer,
57 "object-info: protocol error, expected to get oid, not '%s'",
58 oid_str);
59 continue;
60 }
61
62 strbuf_addstr(&send_buffer, oid_str);
63
64 if (info->size) {
65 if (oid_object_info(r, &oid, &object_size) < 0) {
66 strbuf_addstr(&send_buffer, " ");
67 } else {
68 strbuf_addf(&send_buffer, " %lu", object_size);
69 }
70 }
71
72 packet_writer_write(writer, "%s",
73 strbuf_detach(&send_buffer, NULL));
74 }
75 }
76
77 int cap_object_info(struct repository *r, struct strvec *keys,
78 struct packet_reader *request)
79 {
80 struct requested_info info;
81 struct packet_writer writer;
82 struct string_list oid_str_list = STRING_LIST_INIT_DUP;
83
84 packet_writer_init(&writer, 1);
85
86 while (packet_reader_read(request) == PACKET_READ_NORMAL) {
87 if (!strcmp("size", request->line)) {
88 info.size = 1;
89 continue;
90 }
91
92 if (parse_oid(request->line, &oid_str_list))
93 continue;
94
95 packet_writer_error(&writer,
96 "object-info: unexpected line: '%s'",
97 request->line);
98 }
99
100 if (request->status != PACKET_READ_FLUSH) {
101 packet_writer_error(
102 &writer, "object-info: expected flush after arguments");
103 die(_("object-info: expected flush after arguments"));
104 }
105
106 send_info(r, &writer, &oid_str_list, &info);
107
108 string_list_clear(&oid_str_list, 1);
109
110 packet_flush(1);
111
112 return 0;
113 }