Revert "compat: add strtok_r()"
[git/mingw.git] / remote-testsvn.c
blob5ddf11cc61e22e39f28b3cbe0dbd1075c0881556
1 #include "cache.h"
2 #include "remote.h"
3 #include "strbuf.h"
4 #include "url.h"
5 #include "exec_cmd.h"
6 #include "run-command.h"
7 #include "vcs-svn/svndump.h"
8 #include "notes.h"
9 #include "argv-array.h"
11 static const char *url;
12 static int dump_from_file;
13 static const char *private_ref;
14 static const char *remote_ref = "refs/heads/master";
15 static const char *marksfilename, *notes_ref;
16 struct rev_note { unsigned int rev_nr; };
18 static int cmd_capabilities(const char *line);
19 static int cmd_import(const char *line);
20 static int cmd_list(const char *line);
22 typedef int (*input_command_handler)(const char *);
23 struct input_command_entry {
24 const char *name;
25 input_command_handler fn;
26 unsigned char batchable; /* whether the command starts or is part of a batch */
29 static const struct input_command_entry input_command_list[] = {
30 { "capabilities", cmd_capabilities, 0 },
31 { "import", cmd_import, 1 },
32 { "list", cmd_list, 0 },
33 { NULL, NULL }
36 static int cmd_capabilities(const char *line)
38 printf("import\n");
39 printf("bidi-import\n");
40 printf("refspec %s:%s\n\n", remote_ref, private_ref);
41 fflush(stdout);
42 return 0;
45 static void terminate_batch(void)
47 /* terminate a current batch's fast-import stream */
48 printf("done\n");
49 fflush(stdout);
52 /* NOTE: 'ref' refers to a git reference, while 'rev' refers to a svn revision. */
53 static char *read_ref_note(const unsigned char sha1[20])
55 const unsigned char *note_sha1;
56 char *msg = NULL;
57 unsigned long msglen;
58 enum object_type type;
60 init_notes(NULL, notes_ref, NULL, 0);
61 if (!(note_sha1 = get_note(NULL, sha1)))
62 return NULL; /* note tree not found */
63 if (!(msg = read_sha1_file(note_sha1, &type, &msglen)))
64 error("Empty notes tree. %s", notes_ref);
65 else if (!msglen || type != OBJ_BLOB) {
66 error("Note contains unusable content. "
67 "Is something else using this notes tree? %s", notes_ref);
68 free(msg);
69 msg = NULL;
71 free_notes(NULL);
72 return msg;
75 static int parse_rev_note(const char *msg, struct rev_note *res)
77 const char *key, *value, *end;
78 size_t len;
80 while (*msg) {
81 end = strchr(msg, '\n');
82 len = end ? end - msg : strlen(msg);
84 key = "Revision-number: ";
85 if (!prefixcmp(msg, key)) {
86 long i;
87 char *end;
88 value = msg + strlen(key);
89 i = strtol(value, &end, 0);
90 if (end == value || i < 0 || i > UINT32_MAX)
91 return -1;
92 res->rev_nr = i;
93 return 0;
95 msg += len + 1;
97 /* didn't find it */
98 return -1;
101 static int note2mark_cb(const unsigned char *object_sha1,
102 const unsigned char *note_sha1, char *note_path,
103 void *cb_data)
105 FILE *file = (FILE *)cb_data;
106 char *msg;
107 unsigned long msglen;
108 enum object_type type;
109 struct rev_note note;
111 if (!(msg = read_sha1_file(note_sha1, &type, &msglen)) ||
112 !msglen || type != OBJ_BLOB) {
113 free(msg);
114 return 1;
116 if (parse_rev_note(msg, &note))
117 return 2;
118 if (fprintf(file, ":%d %s\n", note.rev_nr, sha1_to_hex(object_sha1)) < 1)
119 return 3;
120 return 0;
123 static void regenerate_marks(void)
125 int ret;
126 FILE *marksfile = fopen(marksfilename, "w+");
128 if (!marksfile)
129 die_errno("Couldn't create mark file %s.", marksfilename);
130 ret = for_each_note(NULL, 0, note2mark_cb, marksfile);
131 if (ret)
132 die("Regeneration of marks failed, returned %d.", ret);
133 fclose(marksfile);
136 static void check_or_regenerate_marks(int latestrev)
138 FILE *marksfile;
139 struct strbuf sb = STRBUF_INIT;
140 struct strbuf line = STRBUF_INIT;
141 int found = 0;
143 if (latestrev < 1)
144 return;
146 init_notes(NULL, notes_ref, NULL, 0);
147 marksfile = fopen(marksfilename, "r");
148 if (!marksfile) {
149 regenerate_marks();
150 marksfile = fopen(marksfilename, "r");
151 if (!marksfile)
152 die_errno("cannot read marks file %s!", marksfilename);
153 fclose(marksfile);
154 } else {
155 strbuf_addf(&sb, ":%d ", latestrev);
156 while (strbuf_getline(&line, marksfile, '\n') != EOF) {
157 if (!prefixcmp(line.buf, sb.buf)) {
158 found++;
159 break;
162 fclose(marksfile);
163 if (!found)
164 regenerate_marks();
166 free_notes(NULL);
167 strbuf_release(&sb);
168 strbuf_release(&line);
171 static int cmd_import(const char *line)
173 int code;
174 int dumpin_fd;
175 char *note_msg;
176 unsigned char head_sha1[20];
177 unsigned int startrev;
178 struct argv_array svndump_argv = ARGV_ARRAY_INIT;
179 struct child_process svndump_proc;
181 if (read_ref(private_ref, head_sha1))
182 startrev = 0;
183 else {
184 note_msg = read_ref_note(head_sha1);
185 if(note_msg == NULL) {
186 warning("No note found for %s.", private_ref);
187 startrev = 0;
188 } else {
189 struct rev_note note = { 0 };
190 if (parse_rev_note(note_msg, &note))
191 die("Revision number couldn't be parsed from note.");
192 startrev = note.rev_nr + 1;
193 free(note_msg);
196 check_or_regenerate_marks(startrev - 1);
198 if (dump_from_file) {
199 dumpin_fd = open(url, O_RDONLY);
200 if(dumpin_fd < 0)
201 die_errno("Couldn't open svn dump file %s.", url);
202 } else {
203 memset(&svndump_proc, 0, sizeof(struct child_process));
204 svndump_proc.out = -1;
205 argv_array_push(&svndump_argv, "svnrdump");
206 argv_array_push(&svndump_argv, "dump");
207 argv_array_push(&svndump_argv, url);
208 argv_array_pushf(&svndump_argv, "-r%u:HEAD", startrev);
209 svndump_proc.argv = svndump_argv.argv;
211 code = start_command(&svndump_proc);
212 if (code)
213 die("Unable to start %s, code %d", svndump_proc.argv[0], code);
214 dumpin_fd = svndump_proc.out;
216 /* setup marks file import/export */
217 printf("feature import-marks-if-exists=%s\n"
218 "feature export-marks=%s\n", marksfilename, marksfilename);
220 svndump_init_fd(dumpin_fd, STDIN_FILENO);
221 svndump_read(url, private_ref, notes_ref);
222 svndump_deinit();
223 svndump_reset();
225 close(dumpin_fd);
226 if (!dump_from_file) {
227 code = finish_command(&svndump_proc);
228 if (code)
229 warning("%s, returned %d", svndump_proc.argv[0], code);
230 argv_array_clear(&svndump_argv);
233 return 0;
236 static int cmd_list(const char *line)
238 printf("? %s\n\n", remote_ref);
239 fflush(stdout);
240 return 0;
243 static int do_command(struct strbuf *line)
245 const struct input_command_entry *p = input_command_list;
246 static struct string_list batchlines = STRING_LIST_INIT_DUP;
247 static const struct input_command_entry *batch_cmd;
249 * commands can be grouped together in a batch.
250 * Batches are ended by \n. If no batch is active the program ends.
251 * During a batch all lines are buffered and passed to the handler function
252 * when the batch is terminated.
254 if (line->len == 0) {
255 if (batch_cmd) {
256 struct string_list_item *item;
257 for_each_string_list_item(item, &batchlines)
258 batch_cmd->fn(item->string);
259 terminate_batch();
260 batch_cmd = NULL;
261 string_list_clear(&batchlines, 0);
262 return 0; /* end of the batch, continue reading other commands. */
264 return 1; /* end of command stream, quit */
266 if (batch_cmd) {
267 if (prefixcmp(batch_cmd->name, line->buf))
268 die("Active %s batch interrupted by %s", batch_cmd->name, line->buf);
269 /* buffer batch lines */
270 string_list_append(&batchlines, line->buf);
271 return 0;
274 for (p = input_command_list; p->name; p++) {
275 if (!prefixcmp(line->buf, p->name) && (strlen(p->name) == line->len ||
276 line->buf[strlen(p->name)] == ' ')) {
277 if (p->batchable) {
278 batch_cmd = p;
279 string_list_append(&batchlines, line->buf);
280 return 0;
282 return p->fn(line->buf);
285 die("Unknown command '%s'\n", line->buf);
286 return 0;
289 int main(int argc, const char **argv)
291 struct strbuf buf = STRBUF_INIT, url_sb = STRBUF_INIT,
292 private_ref_sb = STRBUF_INIT, marksfilename_sb = STRBUF_INIT,
293 notes_ref_sb = STRBUF_INIT;
294 static struct remote *remote;
295 const char *url_in;
297 git_extract_argv0_path(argv[0]);
298 setup_git_directory();
299 if (argc < 2 || argc > 3) {
300 usage("git-remote-svn <remote-name> [<url>]");
301 return 1;
304 remote = remote_get(argv[1]);
305 url_in = (argc == 3) ? argv[2] : remote->url[0];
307 if (!prefixcmp(url_in, "file://")) {
308 dump_from_file = 1;
309 url = url_decode(url_in + sizeof("file://")-1);
310 } else {
311 dump_from_file = 0;
312 end_url_with_slash(&url_sb, url_in);
313 url = url_sb.buf;
316 strbuf_addf(&private_ref_sb, "refs/svn/%s/master", remote->name);
317 private_ref = private_ref_sb.buf;
319 strbuf_addf(&notes_ref_sb, "refs/notes/%s/revs", remote->name);
320 notes_ref = notes_ref_sb.buf;
322 strbuf_addf(&marksfilename_sb, "%s/info/fast-import/remote-svn/%s.marks",
323 get_git_dir(), remote->name);
324 marksfilename = marksfilename_sb.buf;
326 while (1) {
327 if (strbuf_getline(&buf, stdin, '\n') == EOF) {
328 if (ferror(stdin))
329 die("Error reading command stream");
330 else
331 die("Unexpected end of command stream");
333 if (do_command(&buf))
334 break;
335 strbuf_reset(&buf);
338 strbuf_release(&buf);
339 strbuf_release(&url_sb);
340 strbuf_release(&private_ref_sb);
341 strbuf_release(&notes_ref_sb);
342 strbuf_release(&marksfilename_sb);
343 return 0;