Make the MSVC projects use PDB/IDB files named after the project
[git/dscho.git] / transport-helper.c
blobf57e84c67641b5a03ba8d9ed5182507bb54dcd15
1 #include "cache.h"
2 #include "transport.h"
4 #include "run-command.h"
5 #include "commit.h"
6 #include "diff.h"
7 #include "revision.h"
9 struct helper_data
11 const char *name;
12 struct child_process *helper;
13 unsigned fetch : 1;
16 static struct child_process *get_helper(struct transport *transport)
18 struct helper_data *data = transport->data;
19 struct strbuf buf = STRBUF_INIT;
20 struct child_process *helper;
21 FILE *file;
23 if (data->helper)
24 return data->helper;
26 helper = xcalloc(1, sizeof(*helper));
27 helper->in = -1;
28 helper->out = -1;
29 helper->err = 0;
30 helper->argv = xcalloc(4, sizeof(*helper->argv));
31 strbuf_addf(&buf, "remote-%s", data->name);
32 helper->argv[0] = strbuf_detach(&buf, NULL);
33 helper->argv[1] = transport->remote->name;
34 helper->argv[2] = transport->url;
35 helper->git_cmd = 1;
36 if (start_command(helper))
37 die("Unable to run helper: git %s", helper->argv[0]);
38 data->helper = helper;
40 write_str_in_full(helper->in, "capabilities\n");
42 file = xfdopen(helper->out, "r");
43 while (1) {
44 if (strbuf_getline(&buf, file, '\n') == EOF)
45 exit(128); /* child died, message supplied already */
47 if (!*buf.buf)
48 break;
49 if (!strcmp(buf.buf, "fetch"))
50 data->fetch = 1;
52 return data->helper;
55 static int disconnect_helper(struct transport *transport)
57 struct helper_data *data = transport->data;
58 if (data->helper) {
59 write_str_in_full(data->helper->in, "\n");
60 close(data->helper->in);
61 finish_command(data->helper);
62 free((char *)data->helper->argv[0]);
63 free(data->helper->argv);
64 free(data->helper);
65 data->helper = NULL;
67 return 0;
70 static int fetch_with_fetch(struct transport *transport,
71 int nr_heads, const struct ref **to_fetch)
73 struct child_process *helper = get_helper(transport);
74 FILE *file = xfdopen(helper->out, "r");
75 int i;
76 struct strbuf buf = STRBUF_INIT;
78 for (i = 0; i < nr_heads; i++) {
79 const struct ref *posn = to_fetch[i];
80 if (posn->status & REF_STATUS_UPTODATE)
81 continue;
83 strbuf_addf(&buf, "fetch %s %s\n",
84 sha1_to_hex(posn->old_sha1), posn->name);
85 write_in_full(helper->in, buf.buf, buf.len);
86 strbuf_reset(&buf);
88 if (strbuf_getline(&buf, file, '\n') == EOF)
89 exit(128); /* child died, message supplied already */
91 return 0;
94 static int fetch(struct transport *transport,
95 int nr_heads, const struct ref **to_fetch)
97 struct helper_data *data = transport->data;
98 int i, count;
100 count = 0;
101 for (i = 0; i < nr_heads; i++)
102 if (!(to_fetch[i]->status & REF_STATUS_UPTODATE))
103 count++;
105 if (!count)
106 return 0;
108 if (data->fetch)
109 return fetch_with_fetch(transport, nr_heads, to_fetch);
111 return -1;
114 static struct ref *get_refs_list(struct transport *transport, int for_push)
116 struct child_process *helper;
117 struct ref *ret = NULL;
118 struct ref **tail = &ret;
119 struct ref *posn;
120 struct strbuf buf = STRBUF_INIT;
121 FILE *file;
123 helper = get_helper(transport);
125 write_str_in_full(helper->in, "list\n");
127 file = xfdopen(helper->out, "r");
128 while (1) {
129 char *eov, *eon;
130 if (strbuf_getline(&buf, file, '\n') == EOF)
131 exit(128); /* child died, message supplied already */
133 if (!*buf.buf)
134 break;
136 eov = strchr(buf.buf, ' ');
137 if (!eov)
138 die("Malformed response in ref list: %s", buf.buf);
139 eon = strchr(eov + 1, ' ');
140 *eov = '\0';
141 if (eon)
142 *eon = '\0';
143 *tail = alloc_ref(eov + 1);
144 if (buf.buf[0] == '@')
145 (*tail)->symref = xstrdup(buf.buf + 1);
146 else if (buf.buf[0] != '?')
147 get_sha1_hex(buf.buf, (*tail)->old_sha1);
148 tail = &((*tail)->next);
150 strbuf_release(&buf);
152 for (posn = ret; posn; posn = posn->next)
153 resolve_remote_symref(posn, ret);
155 return ret;
158 int transport_helper_init(struct transport *transport, const char *name)
160 struct helper_data *data = xcalloc(sizeof(*data), 1);
161 data->name = name;
163 transport->data = data;
164 transport->get_refs_list = get_refs_list;
165 transport->fetch = fetch;
166 transport->disconnect = disconnect_helper;
167 return 0;