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 "pack.h"
10#include "pack-bitmap.h"
11#include "builtin.h"
12#include "log-tree.h"
13#include "graph.h"
14#include "bisect.h"
15#include "progress.h"
16#include "reflog-walk.h"
17#include "oidset.h"
18static const char rev_list_usage[] =
20"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
21" limiting output:\n"
22" --max-count=<n>\n"
23" --max-age=<epoch>\n"
24" --min-age=<epoch>\n"
25" --sparse\n"
26" --no-merges\n"
27" --min-parents=<n>\n"
28" --no-min-parents\n"
29" --max-parents=<n>\n"
30" --no-max-parents\n"
31" --remove-empty\n"
32" --all\n"
33" --branches\n"
34" --tags\n"
35" --remotes\n"
36" --stdin\n"
37" --quiet\n"
38" ordering output:\n"
39" --topo-order\n"
40" --date-order\n"
41" --reverse\n"
42" formatting output:\n"
43" --parents\n"
44" --children\n"
45" --objects | --objects-edge\n"
46" --unpacked\n"
47" --header | --pretty\n"
48" --abbrev=<n> | --no-abbrev\n"
49" --abbrev-commit\n"
50" --left-right\n"
51" --count\n"
52" special purpose:\n"
53" --bisect\n"
54" --bisect-vars\n"
55" --bisect-all"
56;
57static struct progress *progress;
59static unsigned progress_counter;
60static struct list_objects_filter_options filter_options;
62static struct oidset omitted_objects;
63static int arg_print_omitted; /* print objects omitted by filter */
64static struct oidset missing_objects;
66enum missing_action {
67 MA_ERROR = 0, /* fail if any missing objects are encountered */
68 MA_ALLOW_ANY, /* silently allow ALL missing objects */
69 MA_PRINT, /* print ALL missing objects in special section */
70};
71static enum missing_action arg_missing_action;
72#define DEFAULT_OIDSET_SIZE (16*1024)
74static void finish_commit(struct commit *commit, void *data);
76static void show_commit(struct commit *commit, void *data)
77{
78 struct rev_list_info *info = data;
79 struct rev_info *revs = info->revs;
80 display_progress(progress, ++progress_counter);
82 if (info->flags & REV_LIST_QUIET) {
84 finish_commit(commit, data);
85 return;
86 }
87 graph_show_commit(revs->graph);
89 if (revs->count) {
91 if (commit->object.flags & PATCHSAME)
92 revs->count_same++;
93 else if (commit->object.flags & SYMMETRIC_LEFT)
94 revs->count_left++;
95 else
96 revs->count_right++;
97 finish_commit(commit, data);
98 return;
99 }
100 if (info->show_timestamp)
102 printf("%"PRItime" ", commit->date);
103 if (info->header_prefix)
104 fputs(info->header_prefix, stdout);
105 if (!revs->graph)
107 fputs(get_revision_mark(revs, commit), stdout);
108 if (revs->abbrev_commit && revs->abbrev)
109 fputs(find_unique_abbrev(commit->object.oid.hash, revs->abbrev),
110 stdout);
111 else
112 fputs(oid_to_hex(&commit->object.oid), stdout);
113 if (revs->print_parents) {
114 struct commit_list *parents = commit->parents;
115 while (parents) {
116 printf(" %s", oid_to_hex(&parents->item->object.oid));
117 parents = parents->next;
118 }
119 }
120 if (revs->children.name) {
121 struct commit_list *children;
122 children = lookup_decoration(&revs->children, &commit->object);
124 while (children) {
125 printf(" %s", oid_to_hex(&children->item->object.oid));
126 children = children->next;
127 }
128 }
129 show_decorations(revs, commit);
130 if (revs->commit_format == CMIT_FMT_ONELINE)
131 putchar(' ');
132 else
133 putchar('\n');
134 if (revs->verbose_header && get_cached_commit_buffer(commit, NULL)) {
136 struct strbuf buf = STRBUF_INIT;
137 struct pretty_print_context ctx = {0};
138 ctx.abbrev = revs->abbrev;
139 ctx.date_mode = revs->date_mode;
140 ctx.date_mode_explicit = revs->date_mode_explicit;
141 ctx.fmt = revs->commit_format;
142 ctx.output_encoding = get_log_output_encoding();
143 ctx.color = revs->diffopt.use_color;
144 pretty_print_commit(&ctx, commit, &buf);
145 if (buf.len) {
146 if (revs->commit_format != CMIT_FMT_ONELINE)
147 graph_show_oneline(revs->graph);
148 graph_show_commit_msg(revs->graph, stdout, &buf);
150 /*
152 * Add a newline after the commit message.
153 *
154 * Usually, this newline produces a blank
155 * padding line between entries, in which case
156 * we need to add graph padding on this line.
157 *
158 * However, the commit message may not end in a
159 * newline. In this case the newline simply
160 * ends the last line of the commit message,
161 * and we don't need any graph output. (This
162 * always happens with CMIT_FMT_ONELINE, and it
163 * happens with CMIT_FMT_USERFORMAT when the
164 * format doesn't explicitly end in a newline.)
165 */
166 if (buf.len && buf.buf[buf.len - 1] == '\n')
167 graph_show_padding(revs->graph);
168 putchar(info->hdr_termination);
169 } else {
170 /*
171 * If the message buffer is empty, just show
172 * the rest of the graph output for this
173 * commit.
174 */
175 if (graph_show_remainder(revs->graph))
176 putchar('\n');
177 if (revs->commit_format == CMIT_FMT_ONELINE)
178 putchar('\n');
179 }
180 strbuf_release(&buf);
181 } else {
182 if (graph_show_remainder(revs->graph))
183 putchar('\n');
184 }
185 maybe_flush_or_die(stdout, "stdout");
186 finish_commit(commit, data);
187}
188static void finish_commit(struct commit *commit, void *data)
190{
191 if (commit->parents) {
192 free_commit_list(commit->parents);
193 commit->parents = NULL;
194 }
195 free_commit_buffer(commit);
196}
197static inline void finish_object__ma(struct object *obj)
199{
200 switch (arg_missing_action) {
201 case MA_ERROR:
202 die("missing blob object '%s'", oid_to_hex(&obj->oid));
203 return;
204 case MA_ALLOW_ANY:
206 return;
207 case MA_PRINT:
209 oidset_insert(&missing_objects, &obj->oid);
210 return;
211 default:
213 BUG("unhandled missing_action");
214 return;
215 }
216}
217static void finish_object(struct object *obj, const char *name, void *cb_data)
219{
220 struct rev_list_info *info = cb_data;
221 if (obj->type == OBJ_BLOB && !has_object_file(&obj->oid))
222 finish_object__ma(obj);
223 if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
224 parse_object(&obj->oid);
225}
226static void show_object(struct object *obj, const char *name, void *cb_data)
228{
229 struct rev_list_info *info = cb_data;
230 finish_object(obj, name, cb_data);
231 display_progress(progress, ++progress_counter);
232 if (info->flags & REV_LIST_QUIET)
233 return;
234 show_object_with_name(stdout, obj, name);
235}
236static void show_edge(struct commit *commit)
238{
239 printf("-%s\n", oid_to_hex(&commit->object.oid));
240}
241static void print_var_str(const char *var, const char *val)
243{
244 printf("%s='%s'\n", var, val);
245}
246static void print_var_int(const char *var, int val)
248{
249 printf("%s=%d\n", var, val);
250}
251static int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
253{
254 int cnt, flags = info->flags;
255 char hex[GIT_MAX_HEXSZ + 1] = "";
256 struct commit_list *tried;
257 struct rev_info *revs = info->revs;
258 if (!revs->commits)
260 return 1;
261 revs->commits = filter_skipped(revs->commits, &tried,
263 flags & BISECT_SHOW_ALL,
264 NULL, NULL);
265 /*
267 * revs->commits can reach "reaches" commits among
268 * "all" commits. If it is good, then there are
269 * (all-reaches) commits left to be bisected.
270 * On the other hand, if it is bad, then the set
271 * to bisect is "reaches".
272 * A bisect set of size N has (N-1) commits further
273 * to test, as we already know one bad one.
274 */
275 cnt = all - reaches;
276 if (cnt < reaches)
277 cnt = reaches;
278 if (revs->commits)
280 oid_to_hex_r(hex, &revs->commits->item->object.oid);
281 if (flags & BISECT_SHOW_ALL) {
283 traverse_commit_list(revs, show_commit, show_object, info);
284 printf("------\n");
285 }
286 print_var_str("bisect_rev", hex);
288 print_var_int("bisect_nr", cnt - 1);
289 print_var_int("bisect_good", all - reaches - 1);
290 print_var_int("bisect_bad", reaches - 1);
291 print_var_int("bisect_all", all);
292 print_var_int("bisect_steps", estimate_bisect_steps(all));
293 return 0;
295}
296static int show_object_fast(
298 const unsigned char *sha1,
299 enum object_type type,
300 int exclude,
301 uint32_t name_hash,
302 struct packed_git *found_pack,
303 off_t found_offset)
304{
305 fprintf(stdout, "%s\n", sha1_to_hex(sha1));
306 return 1;
307}
308static inline int parse_missing_action_value(const char *value)
310{
311 if (!strcmp(value, "error")) {
312 arg_missing_action = MA_ERROR;
313 return 1;
314 }
315 if (!strcmp(value, "allow-any")) {
317 arg_missing_action = MA_ALLOW_ANY;
318 return 1;
319 }
320 if (!strcmp(value, "print")) {
322 arg_missing_action = MA_PRINT;
323 return 1;
324 }
325 return 0;
327}
328int cmd_rev_list(int argc, const char **argv, const char *prefix)
330{
331 struct rev_info revs;
332 struct rev_list_info info;
333 int i;
334 int bisect_list = 0;
335 int bisect_show_vars = 0;
336 int bisect_find_all = 0;
337 int use_bitmap_index = 0;
338 const char *show_progress = NULL;
339 if (argc == 2 && !strcmp(argv[1], "-h"))
341 usage(rev_list_usage);
342 git_config(git_default_config, NULL);
344 init_revisions(&revs, prefix);
345 revs.abbrev = DEFAULT_ABBREV;
346 revs.commit_format = CMIT_FMT_UNSPECIFIED;
347 argc = setup_revisions(argc, argv, &revs, NULL);
348 memset(&info, 0, sizeof(info));
350 info.revs = &revs;
351 if (revs.bisect)
352 bisect_list = 1;
353 if (DIFF_OPT_TST(&revs.diffopt, QUICK))
355 info.flags |= REV_LIST_QUIET;
356 for (i = 1 ; i < argc; i++) {
357 const char *arg = argv[i];
358 if (!strcmp(arg, "--header")) {
360 revs.verbose_header = 1;
361 continue;
362 }
363 if (!strcmp(arg, "--timestamp")) {
364 info.show_timestamp = 1;
365 continue;
366 }
367 if (!strcmp(arg, "--bisect")) {
368 bisect_list = 1;
369 continue;
370 }
371 if (!strcmp(arg, "--bisect-all")) {
372 bisect_list = 1;
373 bisect_find_all = 1;
374 info.flags |= BISECT_SHOW_ALL;
375 revs.show_decorations = 1;
376 continue;
377 }
378 if (!strcmp(arg, "--bisect-vars")) {
379 bisect_list = 1;
380 bisect_show_vars = 1;
381 continue;
382 }
383 if (!strcmp(arg, "--use-bitmap-index")) {
384 use_bitmap_index = 1;
385 continue;
386 }
387 if (!strcmp(arg, "--test-bitmap")) {
388 test_bitmap_walk(&revs);
389 return 0;
390 }
391 if (skip_prefix(arg, "--progress=", &arg)) {
392 show_progress = arg;
393 continue;
394 }
395 if (skip_prefix(arg, ("--" CL_ARG__FILTER "="), &arg)) {
397 parse_list_objects_filter(&filter_options, arg);
398 if (filter_options.choice && !revs.blob_objects)
399 die(_("object filtering requires --objects"));
400 if (filter_options.choice == LOFC_SPARSE_OID &&
401 !filter_options.sparse_oid_value)
402 die(_("invalid sparse value '%s'"),
403 filter_options.filter_spec);
404 continue;
405 }
406 if (!strcmp(arg, "--filter-print-omitted")) {
407 arg_print_omitted = 1;
408 continue;
409 }
410 if (skip_prefix(arg, "--missing=", &arg) &&
412 parse_missing_action_value(arg))
413 continue;
414 usage(rev_list_usage);
416 }
418 if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
419 /* The command line has a --pretty */
420 info.hdr_termination = '\n';
421 if (revs.commit_format == CMIT_FMT_ONELINE)
422 info.header_prefix = "";
423 else
424 info.header_prefix = "commit ";
425 }
426 else if (revs.verbose_header)
427 /* Only --header was specified */
428 revs.commit_format = CMIT_FMT_RAW;
429 if ((!revs.commits && reflog_walk_empty(revs.reflog_info) &&
431 (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) &&
432 !revs.pending.nr) &&
433 !revs.rev_input_given) ||
434 revs.diff)
435 usage(rev_list_usage);
436 if (revs.show_notes)
438 die(_("rev-list does not support display of notes"));
439 if (filter_options.choice && use_bitmap_index)
441 die(_("cannot combine --use-bitmap-index with object filtering"));
442 save_commit_buffer = (revs.verbose_header ||
444 revs.grep_filter.pattern_list ||
445 revs.grep_filter.header_list);
446 if (bisect_list)
447 revs.limited = 1;
448 if (show_progress)
450 progress = start_delayed_progress(show_progress, 0);
451 if (use_bitmap_index && !revs.prune) {
453 if (revs.count && !revs.left_right && !revs.cherry_mark) {
454 uint32_t commit_count;
455 int max_count = revs.max_count;
456 if (!prepare_bitmap_walk(&revs)) {
457 count_bitmap_commit_list(&commit_count, NULL, NULL, NULL);
458 if (max_count >= 0 && max_count < commit_count)
459 commit_count = max_count;
460 printf("%d\n", commit_count);
461 return 0;
462 }
463 } else if (revs.max_count < 0 &&
464 revs.tag_objects && revs.tree_objects && revs.blob_objects) {
465 if (!prepare_bitmap_walk(&revs)) {
466 traverse_bitmap_commit_list(&show_object_fast);
467 return 0;
468 }
469 }
470 }
471 if (prepare_revision_walk(&revs))
473 die("revision walk setup failed");
474 if (revs.tree_objects)
475 mark_edges_uninteresting(&revs, show_edge);
476 if (bisect_list) {
478 int reaches = reaches, all = all;
479 revs.commits = find_bisection(revs.commits, &reaches, &all,
481 bisect_find_all);
482 if (bisect_show_vars)
484 return show_bisect_vars(&info, reaches, all);
485 }
486 if (arg_print_omitted)
488 oidset_init(&omitted_objects, DEFAULT_OIDSET_SIZE);
489 if (arg_missing_action == MA_PRINT)
490 oidset_init(&missing_objects, DEFAULT_OIDSET_SIZE);
491 traverse_commit_list_filtered(
493 &filter_options, &revs, show_commit, show_object, &info,
494 (arg_print_omitted ? &omitted_objects : NULL));
495 if (arg_print_omitted) {
497 struct oidset_iter iter;
498 struct object_id *oid;
499 oidset_iter_init(&omitted_objects, &iter);
500 while ((oid = oidset_iter_next(&iter)))
501 printf("~%s\n", oid_to_hex(oid));
502 oidset_clear(&omitted_objects);
503 }
504 if (arg_missing_action == MA_PRINT) {
505 struct oidset_iter iter;
506 struct object_id *oid;
507 oidset_iter_init(&missing_objects, &iter);
508 while ((oid = oidset_iter_next(&iter)))
509 printf("?%s\n", oid_to_hex(oid));
510 oidset_clear(&missing_objects);
511 }
512 stop_progress(&progress);
514 if (revs.count) {
516 if (revs.left_right && revs.cherry_mark)
517 printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same);
518 else if (revs.left_right)
519 printf("%d\t%d\n", revs.count_left, revs.count_right);
520 else if (revs.cherry_mark)
521 printf("%d\t%d\n", revs.count_left + revs.count_right, revs.count_same);
522 else
523 printf("%d\n", revs.count_left + revs.count_right);
524 }
525 return 0;
527}