1#include "cache.h"
2#include "config.h"
3#include "commit.h"
4#include "diff.h"
5#include "revision.h"
6#include "list-objects.h"
7#include "list-objects-filter.h"
8#include "list-objects-filter-options.h"
9#include "object.h"
10#include "object-store.h"
11#include "pack.h"
12#include "pack-bitmap.h"
13#include "builtin.h"
14#include "log-tree.h"
15#include "graph.h"
16#include "bisect.h"
17#include "progress.h"
18#include "reflog-walk.h"
19#include "oidset.h"
20#include "packfile.h"
21#include "object-store.h"
22static const char rev_list_usage[] =
24"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
25" limiting output:\n"
26" --max-count=<n>\n"
27" --max-age=<epoch>\n"
28" --min-age=<epoch>\n"
29" --sparse\n"
30" --no-merges\n"
31" --min-parents=<n>\n"
32" --no-min-parents\n"
33" --max-parents=<n>\n"
34" --no-max-parents\n"
35" --remove-empty\n"
36" --all\n"
37" --branches\n"
38" --tags\n"
39" --remotes\n"
40" --stdin\n"
41" --quiet\n"
42" ordering output:\n"
43" --topo-order\n"
44" --date-order\n"
45" --reverse\n"
46" formatting output:\n"
47" --parents\n"
48" --children\n"
49" --objects | --objects-edge\n"
50" --unpacked\n"
51" --header | --pretty\n"
52" --abbrev=<n> | --no-abbrev\n"
53" --abbrev-commit\n"
54" --left-right\n"
55" --count\n"
56" special purpose:\n"
57" --bisect\n"
58" --bisect-vars\n"
59" --bisect-all"
60;
61static struct progress *progress;
63static unsigned progress_counter;
64static struct list_objects_filter_options filter_options;
66static struct oidset omitted_objects;
67static int arg_print_omitted; /* print objects omitted by filter */
68static struct oidset missing_objects;
70enum missing_action {
71 MA_ERROR = 0, /* fail if any missing objects are encountered */
72 MA_ALLOW_ANY, /* silently allow ALL missing objects */
73 MA_PRINT, /* print ALL missing objects in special section */
74 MA_ALLOW_PROMISOR, /* silently allow all missing PROMISOR objects */
75};
76static enum missing_action arg_missing_action;
77#define DEFAULT_OIDSET_SIZE (16*1024)
79static void finish_commit(struct commit *commit, void *data);
81static void show_commit(struct commit *commit, void *data)
82{
83 struct rev_list_info *info = data;
84 struct rev_info *revs = info->revs;
85 display_progress(progress, ++progress_counter);
87 if (info->flags & REV_LIST_QUIET) {
89 finish_commit(commit, data);
90 return;
91 }
92 graph_show_commit(revs->graph);
94 if (revs->count) {
96 if (commit->object.flags & PATCHSAME)
97 revs->count_same++;
98 else if (commit->object.flags & SYMMETRIC_LEFT)
99 revs->count_left++;
100 else
101 revs->count_right++;
102 finish_commit(commit, data);
103 return;
104 }
105 if (info->show_timestamp)
107 printf("%"PRItime" ", commit->date);
108 if (info->header_prefix)
109 fputs(info->header_prefix, stdout);
110 if (!revs->graph)
112 fputs(get_revision_mark(revs, commit), stdout);
113 if (revs->abbrev_commit && revs->abbrev)
114 fputs(find_unique_abbrev(&commit->object.oid, revs->abbrev),
115 stdout);
116 else
117 fputs(oid_to_hex(&commit->object.oid), stdout);
118 if (revs->print_parents) {
119 struct commit_list *parents = commit->parents;
120 while (parents) {
121 printf(" %s", oid_to_hex(&parents->item->object.oid));
122 parents = parents->next;
123 }
124 }
125 if (revs->children.name) {
126 struct commit_list *children;
127 children = lookup_decoration(&revs->children, &commit->object);
129 while (children) {
130 printf(" %s", oid_to_hex(&children->item->object.oid));
131 children = children->next;
132 }
133 }
134 show_decorations(revs, commit);
135 if (revs->commit_format == CMIT_FMT_ONELINE)
136 putchar(' ');
137 else
138 putchar('\n');
139 if (revs->verbose_header) {
141 struct strbuf buf = STRBUF_INIT;
142 struct pretty_print_context ctx = {0};
143 ctx.abbrev = revs->abbrev;
144 ctx.date_mode = revs->date_mode;
145 ctx.date_mode_explicit = revs->date_mode_explicit;
146 ctx.fmt = revs->commit_format;
147 ctx.output_encoding = get_log_output_encoding();
148 ctx.color = revs->diffopt.use_color;
149 pretty_print_commit(&ctx, commit, &buf);
150 if (buf.len) {
151 if (revs->commit_format != CMIT_FMT_ONELINE)
152 graph_show_oneline(revs->graph);
153 graph_show_commit_msg(revs->graph, stdout, &buf);
155 /*
157 * Add a newline after the commit message.
158 *
159 * Usually, this newline produces a blank
160 * padding line between entries, in which case
161 * we need to add graph padding on this line.
162 *
163 * However, the commit message may not end in a
164 * newline. In this case the newline simply
165 * ends the last line of the commit message,
166 * and we don't need any graph output. (This
167 * always happens with CMIT_FMT_ONELINE, and it
168 * happens with CMIT_FMT_USERFORMAT when the
169 * format doesn't explicitly end in a newline.)
170 */
171 if (buf.len && buf.buf[buf.len - 1] == '\n')
172 graph_show_padding(revs->graph);
173 putchar(info->hdr_termination);
174 } else {
175 /*
176 * If the message buffer is empty, just show
177 * the rest of the graph output for this
178 * commit.
179 */
180 if (graph_show_remainder(revs->graph))
181 putchar('\n');
182 if (revs->commit_format == CMIT_FMT_ONELINE)
183 putchar('\n');
184 }
185 strbuf_release(&buf);
186 } else {
187 if (graph_show_remainder(revs->graph))
188 putchar('\n');
189 }
190 maybe_flush_or_die(stdout, "stdout");
191 finish_commit(commit, data);
192}
193static void finish_commit(struct commit *commit, void *data)
195{
196 if (commit->parents) {
197 free_commit_list(commit->parents);
198 commit->parents = NULL;
199 }
200 free_commit_buffer(commit);
201}
202static inline void finish_object__ma(struct object *obj)
204{
205 /*
206 * Whether or not we try to dynamically fetch missing objects
207 * from the server, we currently DO NOT have the object. We
208 * can either print, allow (ignore), or conditionally allow
209 * (ignore) them.
210 */
211 switch (arg_missing_action) {
212 case MA_ERROR:
213 die("missing %s object '%s'",
214 type_name(obj->type), oid_to_hex(&obj->oid));
215 return;
216 case MA_ALLOW_ANY:
218 return;
219 case MA_PRINT:
221 oidset_insert(&missing_objects, &obj->oid);
222 return;
223 case MA_ALLOW_PROMISOR:
225 if (is_promisor_object(&obj->oid))
226 return;
227 die("unexpected missing %s object '%s'",
228 type_name(obj->type), oid_to_hex(&obj->oid));
229 return;
230 default:
232 BUG("unhandled missing_action");
233 return;
234 }
235}
236static int finish_object(struct object *obj, const char *name, void *cb_data)
238{
239 struct rev_list_info *info = cb_data;
240 if (!has_object_file(&obj->oid)) {
241 finish_object__ma(obj);
242 return 1;
243 }
244 if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
245 parse_object(the_repository, &obj->oid);
246 return 0;
247}
248static void show_object(struct object *obj, const char *name, void *cb_data)
250{
251 struct rev_list_info *info = cb_data;
252 if (finish_object(obj, name, cb_data))
253 return;
254 display_progress(progress, ++progress_counter);
255 if (info->flags & REV_LIST_QUIET)
256 return;
257 show_object_with_name(stdout, obj, name);
258}
259static void show_edge(struct commit *commit)
261{
262 printf("-%s\n", oid_to_hex(&commit->object.oid));
263}
264static void print_var_str(const char *var, const char *val)
266{
267 printf("%s='%s'\n", var, val);
268}
269static void print_var_int(const char *var, int val)
271{
272 printf("%s=%d\n", var, val);
273}
274static int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
276{
277 int cnt, flags = info->flags;
278 char hex[GIT_MAX_HEXSZ + 1] = "";
279 struct commit_list *tried;
280 struct rev_info *revs = info->revs;
281 if (!revs->commits)
283 return 1;
284 revs->commits = filter_skipped(revs->commits, &tried,
286 flags & BISECT_SHOW_ALL,
287 NULL, NULL);
288 /*
290 * revs->commits can reach "reaches" commits among
291 * "all" commits. If it is good, then there are
292 * (all-reaches) commits left to be bisected.
293 * On the other hand, if it is bad, then the set
294 * to bisect is "reaches".
295 * A bisect set of size N has (N-1) commits further
296 * to test, as we already know one bad one.
297 */
298 cnt = all - reaches;
299 if (cnt < reaches)
300 cnt = reaches;
301 if (revs->commits)
303 oid_to_hex_r(hex, &revs->commits->item->object.oid);
304 if (flags & BISECT_SHOW_ALL) {
306 traverse_commit_list(revs, show_commit, show_object, info);
307 printf("------\n");
308 }
309 print_var_str("bisect_rev", hex);
311 print_var_int("bisect_nr", cnt - 1);
312 print_var_int("bisect_good", all - reaches - 1);
313 print_var_int("bisect_bad", reaches - 1);
314 print_var_int("bisect_all", all);
315 print_var_int("bisect_steps", estimate_bisect_steps(all));
316 return 0;
318}
319static int show_object_fast(
321 const struct object_id *oid,
322 enum object_type type,
323 int exclude,
324 uint32_t name_hash,
325 struct packed_git *found_pack,
326 off_t found_offset)
327{
328 fprintf(stdout, "%s\n", oid_to_hex(oid));
329 return 1;
330}
331static inline int parse_missing_action_value(const char *value)
333{
334 if (!strcmp(value, "error")) {
335 arg_missing_action = MA_ERROR;
336 return 1;
337 }
338 if (!strcmp(value, "allow-any")) {
340 arg_missing_action = MA_ALLOW_ANY;
341 fetch_if_missing = 0;
342 return 1;
343 }
344 if (!strcmp(value, "print")) {
346 arg_missing_action = MA_PRINT;
347 fetch_if_missing = 0;
348 return 1;
349 }
350 if (!strcmp(value, "allow-promisor")) {
352 arg_missing_action = MA_ALLOW_PROMISOR;
353 fetch_if_missing = 0;
354 return 1;
355 }
356 return 0;
358}
359int cmd_rev_list(int argc, const char **argv, const char *prefix)
361{
362 struct rev_info revs;
363 struct rev_list_info info;
364 int i;
365 int bisect_list = 0;
366 int bisect_show_vars = 0;
367 int bisect_find_all = 0;
368 int use_bitmap_index = 0;
369 const char *show_progress = NULL;
370 if (argc == 2 && !strcmp(argv[1], "-h"))
372 usage(rev_list_usage);
373 git_config(git_default_config, NULL);
375 repo_init_revisions(the_repository, &revs, prefix);
376 revs.abbrev = DEFAULT_ABBREV;
377 revs.allow_exclude_promisor_objects_opt = 1;
378 revs.commit_format = CMIT_FMT_UNSPECIFIED;
379 revs.do_not_die_on_missing_tree = 1;
380 /*
382 * Scan the argument list before invoking setup_revisions(), so that we
383 * know if fetch_if_missing needs to be set to 0.
384 *
385 * "--exclude-promisor-objects" acts as a pre-filter on missing objects
386 * by not crossing the boundary from realized objects to promisor
387 * objects.
388 *
389 * Let "--missing" to conditionally set fetch_if_missing.
390 */
391 for (i = 1; i < argc; i++) {
392 const char *arg = argv[i];
393 if (!strcmp(arg, "--exclude-promisor-objects")) {
394 fetch_if_missing = 0;
395 revs.exclude_promisor_objects = 1;
396 break;
397 }
398 }
399 for (i = 1; i < argc; i++) {
400 const char *arg = argv[i];
401 if (skip_prefix(arg, "--missing=", &arg)) {
402 if (revs.exclude_promisor_objects)
403 die(_("cannot combine --exclude-promisor-objects and --missing"));
404 if (parse_missing_action_value(arg))
405 break;
406 }
407 }
408 argc = setup_revisions(argc, argv, &revs, NULL);
410 memset(&info, 0, sizeof(info));
412 info.revs = &revs;
413 if (revs.bisect)
414 bisect_list = 1;
415 if (revs.diffopt.flags.quick)
417 info.flags |= REV_LIST_QUIET;
418 for (i = 1 ; i < argc; i++) {
419 const char *arg = argv[i];
420 if (!strcmp(arg, "--header")) {
422 revs.verbose_header = 1;
423 continue;
424 }
425 if (!strcmp(arg, "--timestamp")) {
426 info.show_timestamp = 1;
427 continue;
428 }
429 if (!strcmp(arg, "--bisect")) {
430 bisect_list = 1;
431 continue;
432 }
433 if (!strcmp(arg, "--bisect-all")) {
434 bisect_list = 1;
435 bisect_find_all = 1;
436 info.flags |= BISECT_SHOW_ALL;
437 revs.show_decorations = 1;
438 continue;
439 }
440 if (!strcmp(arg, "--bisect-vars")) {
441 bisect_list = 1;
442 bisect_show_vars = 1;
443 continue;
444 }
445 if (!strcmp(arg, "--use-bitmap-index")) {
446 use_bitmap_index = 1;
447 continue;
448 }
449 if (!strcmp(arg, "--test-bitmap")) {
450 test_bitmap_walk(&revs);
451 return 0;
452 }
453 if (skip_prefix(arg, "--progress=", &arg)) {
454 show_progress = arg;
455 continue;
456 }
457 if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
459 parse_list_objects_filter(&filter_options, arg);
460 if (filter_options.choice && !revs.blob_objects)
461 die(_("object filtering requires --objects"));
462 if (filter_options.choice == LOFC_SPARSE_OID &&
463 !filter_options.sparse_oid_value)
464 die(_("invalid sparse value '%s'"),
465 filter_options.filter_spec);
466 continue;
467 }
468 if (!strcmp(arg, ("--no-" CL_ARG__FILTER))) {
469 list_objects_filter_set_no_filter(&filter_options);
470 continue;
471 }
472 if (!strcmp(arg, "--filter-print-omitted")) {
473 arg_print_omitted = 1;
474 continue;
475 }
476 if (!strcmp(arg, "--exclude-promisor-objects"))
478 continue; /* already handled above */
479 if (skip_prefix(arg, "--missing=", &arg))
480 continue; /* already handled above */
481 usage(rev_list_usage);
483 }
485 if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
486 /* The command line has a --pretty */
487 info.hdr_termination = '\n';
488 if (revs.commit_format == CMIT_FMT_ONELINE)
489 info.header_prefix = "";
490 else
491 info.header_prefix = "commit ";
492 }
493 else if (revs.verbose_header)
494 /* Only --header was specified */
495 revs.commit_format = CMIT_FMT_RAW;
496 if ((!revs.commits && reflog_walk_empty(revs.reflog_info) &&
498 (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) &&
499 !revs.pending.nr) &&
500 !revs.rev_input_given && !revs.read_from_stdin) ||
501 revs.diff)
502 usage(rev_list_usage);
503 if (revs.show_notes)
505 die(_("rev-list does not support display of notes"));
506 if (filter_options.choice && use_bitmap_index)
508 die(_("cannot combine --use-bitmap-index with object filtering"));
509 save_commit_buffer = (revs.verbose_header ||
511 revs.grep_filter.pattern_list ||
512 revs.grep_filter.header_list);
513 if (bisect_list)
514 revs.limited = 1;
515 if (show_progress)
517 progress = start_delayed_progress(show_progress, 0);
518 if (use_bitmap_index && !revs.prune) {
520 if (revs.count && !revs.left_right && !revs.cherry_mark) {
521 uint32_t commit_count;
522 int max_count = revs.max_count;
523 struct bitmap_index *bitmap_git;
524 if ((bitmap_git = prepare_bitmap_walk(&revs))) {
525 count_bitmap_commit_list(bitmap_git, &commit_count, NULL, NULL, NULL);
526 if (max_count >= 0 && max_count < commit_count)
527 commit_count = max_count;
528 printf("%d\n", commit_count);
529 free_bitmap_index(bitmap_git);
530 return 0;
531 }
532 } else if (revs.max_count < 0 &&
533 revs.tag_objects && revs.tree_objects && revs.blob_objects) {
534 struct bitmap_index *bitmap_git;
535 if ((bitmap_git = prepare_bitmap_walk(&revs))) {
536 traverse_bitmap_commit_list(bitmap_git, &show_object_fast);
537 free_bitmap_index(bitmap_git);
538 return 0;
539 }
540 }
541 }
542 if (prepare_revision_walk(&revs))
544 die("revision walk setup failed");
545 if (revs.tree_objects)
546 mark_edges_uninteresting(&revs, show_edge, 0);
547 if (bisect_list) {
549 int reaches, all;
550 find_bisection(&revs.commits, &reaches, &all, bisect_find_all);
552 if (bisect_show_vars)
554 return show_bisect_vars(&info, reaches, all);
555 }
556 if (arg_print_omitted)
558 oidset_init(&omitted_objects, DEFAULT_OIDSET_SIZE);
559 if (arg_missing_action == MA_PRINT)
560 oidset_init(&missing_objects, DEFAULT_OIDSET_SIZE);
561 traverse_commit_list_filtered(
563 &filter_options, &revs, show_commit, show_object, &info,
564 (arg_print_omitted ? &omitted_objects : NULL));
565 if (arg_print_omitted) {
567 struct oidset_iter iter;
568 struct object_id *oid;
569 oidset_iter_init(&omitted_objects, &iter);
570 while ((oid = oidset_iter_next(&iter)))
571 printf("~%s\n", oid_to_hex(oid));
572 oidset_clear(&omitted_objects);
573 }
574 if (arg_missing_action == MA_PRINT) {
575 struct oidset_iter iter;
576 struct object_id *oid;
577 oidset_iter_init(&missing_objects, &iter);
578 while ((oid = oidset_iter_next(&iter)))
579 printf("?%s\n", oid_to_hex(oid));
580 oidset_clear(&missing_objects);
581 }
582 stop_progress(&progress);
584 if (revs.count) {
586 if (revs.left_right && revs.cherry_mark)
587 printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same);
588 else if (revs.left_right)
589 printf("%d\t%d\n", revs.count_left, revs.count_right);
590 else if (revs.cherry_mark)
591 printf("%d\t%d\n", revs.count_left + revs.count_right, revs.count_same);
592 else
593 printf("%d\n", revs.count_left + revs.count_right);
594 }
595 return 0;
597}