Merge branch 'nd/rebase-show-current-patch'
[git] / builtin / fetch-pack.c
1 #include "builtin.h"
2 #include "pkt-line.h"
3 #include "fetch-pack.h"
4 #include "remote.h"
5 #include "connect.h"
6 #include "sha1-array.h"
7
8 static const char fetch_pack_usage[] =
9 "git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
10 "[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
11 "[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
12
13 static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
14                              const char *name)
15 {
16         struct ref *ref;
17         struct object_id oid;
18
19         if (!get_oid_hex(name, &oid)) {
20                 if (name[GIT_SHA1_HEXSZ] == ' ') {
21                         /* <sha1> <ref>, find refname */
22                         name += GIT_SHA1_HEXSZ + 1;
23                 } else if (name[GIT_SHA1_HEXSZ] == '\0') {
24                         ; /* <sha1>, leave sha1 as name */
25                 } else {
26                         /* <ref>, clear cruft from oid */
27                         oidclr(&oid);
28                 }
29         } else {
30                 /* <ref>, clear cruft from get_oid_hex */
31                 oidclr(&oid);
32         }
33
34         ref = alloc_ref(name);
35         oidcpy(&ref->old_oid, &oid);
36         (*nr)++;
37         ALLOC_GROW(*sought, *nr, *alloc);
38         (*sought)[*nr - 1] = ref;
39 }
40
41 int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
42 {
43         int i, ret;
44         struct ref *ref = NULL;
45         const char *dest = NULL;
46         struct ref **sought = NULL;
47         int nr_sought = 0, alloc_sought = 0;
48         int fd[2];
49         char *pack_lockfile = NULL;
50         char **pack_lockfile_ptr = NULL;
51         struct child_process *conn;
52         struct fetch_pack_args args;
53         struct oid_array shallow = OID_ARRAY_INIT;
54         struct string_list deepen_not = STRING_LIST_INIT_DUP;
55
56         fetch_if_missing = 0;
57
58         packet_trace_identity("fetch-pack");
59
60         memset(&args, 0, sizeof(args));
61         args.uploadpack = "git-upload-pack";
62
63         for (i = 1; i < argc && *argv[i] == '-'; i++) {
64                 const char *arg = argv[i];
65
66                 if (skip_prefix(arg, "--upload-pack=", &arg)) {
67                         args.uploadpack = arg;
68                         continue;
69                 }
70                 if (skip_prefix(arg, "--exec=", &arg)) {
71                         args.uploadpack = arg;
72                         continue;
73                 }
74                 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
75                         args.quiet = 1;
76                         continue;
77                 }
78                 if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
79                         args.lock_pack = args.keep_pack;
80                         args.keep_pack = 1;
81                         continue;
82                 }
83                 if (!strcmp("--thin", arg)) {
84                         args.use_thin_pack = 1;
85                         continue;
86                 }
87                 if (!strcmp("--include-tag", arg)) {
88                         args.include_tag = 1;
89                         continue;
90                 }
91                 if (!strcmp("--all", arg)) {
92                         args.fetch_all = 1;
93                         continue;
94                 }
95                 if (!strcmp("--stdin", arg)) {
96                         args.stdin_refs = 1;
97                         continue;
98                 }
99                 if (!strcmp("--diag-url", arg)) {
100                         args.diag_url = 1;
101                         continue;
102                 }
103                 if (!strcmp("-v", arg)) {
104                         args.verbose = 1;
105                         continue;
106                 }
107                 if (skip_prefix(arg, "--depth=", &arg)) {
108                         args.depth = strtol(arg, NULL, 0);
109                         continue;
110                 }
111                 if (skip_prefix(arg, "--shallow-since=", &arg)) {
112                         args.deepen_since = xstrdup(arg);
113                         continue;
114                 }
115                 if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
116                         string_list_append(&deepen_not, arg);
117                         continue;
118                 }
119                 if (!strcmp(arg, "--deepen-relative")) {
120                         args.deepen_relative = 1;
121                         continue;
122                 }
123                 if (!strcmp("--no-progress", arg)) {
124                         args.no_progress = 1;
125                         continue;
126                 }
127                 if (!strcmp("--stateless-rpc", arg)) {
128                         args.stateless_rpc = 1;
129                         continue;
130                 }
131                 if (!strcmp("--lock-pack", arg)) {
132                         args.lock_pack = 1;
133                         pack_lockfile_ptr = &pack_lockfile;
134                         continue;
135                 }
136                 if (!strcmp("--check-self-contained-and-connected", arg)) {
137                         args.check_self_contained_and_connected = 1;
138                         continue;
139                 }
140                 if (!strcmp("--cloning", arg)) {
141                         args.cloning = 1;
142                         continue;
143                 }
144                 if (!strcmp("--update-shallow", arg)) {
145                         args.update_shallow = 1;
146                         continue;
147                 }
148                 if (!strcmp("--from-promisor", arg)) {
149                         args.from_promisor = 1;
150                         continue;
151                 }
152                 if (!strcmp("--no-dependents", arg)) {
153                         args.no_dependents = 1;
154                         continue;
155                 }
156                 if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
157                         parse_list_objects_filter(&args.filter_options, arg);
158                         continue;
159                 }
160                 if (!strcmp(arg, ("--no-" CL_ARG__FILTER))) {
161                         list_objects_filter_set_no_filter(&args.filter_options);
162                         continue;
163                 }
164                 usage(fetch_pack_usage);
165         }
166         if (deepen_not.nr)
167                 args.deepen_not = &deepen_not;
168
169         if (i < argc)
170                 dest = argv[i++];
171         else
172                 usage(fetch_pack_usage);
173
174         /*
175          * Copy refs from cmdline to growable list, then append any
176          * refs from the standard input:
177          */
178         for (; i < argc; i++)
179                 add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
180         if (args.stdin_refs) {
181                 if (args.stateless_rpc) {
182                         /* in stateless RPC mode we use pkt-line to read
183                          * from stdin, until we get a flush packet
184                          */
185                         for (;;) {
186                                 char *line = packet_read_line(0, NULL);
187                                 if (!line)
188                                         break;
189                                 add_sought_entry(&sought, &nr_sought,  &alloc_sought, line);
190                         }
191                 }
192                 else {
193                         /* read from stdin one ref per line, until EOF */
194                         struct strbuf line = STRBUF_INIT;
195                         while (strbuf_getline_lf(&line, stdin) != EOF)
196                                 add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
197                         strbuf_release(&line);
198                 }
199         }
200
201         if (args.stateless_rpc) {
202                 conn = NULL;
203                 fd[0] = 0;
204                 fd[1] = 1;
205         } else {
206                 int flags = args.verbose ? CONNECT_VERBOSE : 0;
207                 if (args.diag_url)
208                         flags |= CONNECT_DIAG_URL;
209                 conn = git_connect(fd, dest, args.uploadpack,
210                                    flags);
211                 if (!conn)
212                         return args.diag_url ? 0 : 1;
213         }
214         get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
215
216         ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
217                          &shallow, pack_lockfile_ptr);
218         if (pack_lockfile) {
219                 printf("lock %s\n", pack_lockfile);
220                 fflush(stdout);
221         }
222         if (args.check_self_contained_and_connected &&
223             args.self_contained_and_connected) {
224                 printf("connectivity-ok\n");
225                 fflush(stdout);
226         }
227         close(fd[0]);
228         close(fd[1]);
229         if (finish_connect(conn))
230                 return 1;
231
232         ret = !ref;
233
234         /*
235          * If the heads to pull were given, we should have consumed
236          * all of them by matching the remote.  Otherwise, 'git fetch
237          * remote no-such-ref' would silently succeed without issuing
238          * an error.
239          */
240         ret |= report_unmatched_refs(sought, nr_sought);
241
242         while (ref) {
243                 printf("%s %s\n",
244                        oid_to_hex(&ref->old_oid), ref->name);
245                 ref = ref->next;
246         }
247
248         return ret;
249 }