10 /* bits #0-4 in revision.h */
12 #define COUNTED (1u<<5)
14 static const char rev_list_usage[] =
15 "git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
27 " formatting output:\n"
29 " --objects | --objects-edge\n"
31 " --header | --pretty\n"
32 " --abbrev=nr | --no-abbrev\n"
39 static int bisect_list = 0;
40 static int verbose_header = 0;
41 static int abbrev = DEFAULT_ABBREV;
42 static int show_parents = 0;
43 static int show_timestamp = 0;
44 static int hdr_termination = 0;
45 static const char *commit_prefix = "";
46 static enum cmit_fmt commit_format = CMIT_FMT_RAW;
48 static void show_commit(struct commit *commit)
51 printf("%lu ", commit->date);
53 fputs(commit_prefix, stdout);
54 fputs(sha1_to_hex(commit->object.sha1), stdout);
56 struct commit_list *parents = commit->parents;
58 struct object *o = &(parents->item->object);
59 parents = parents->next;
60 if (o->flags & TMP_MARK)
62 printf(" %s", sha1_to_hex(o->sha1));
65 /* TMP_MARK is a general purpose flag that can
66 * be used locally, but the user should clean
67 * things up after it is done with them.
69 for (parents = commit->parents;
71 parents = parents->next)
72 parents->item->object.flags &= ~TMP_MARK;
74 if (commit_format == CMIT_FMT_ONELINE)
80 static char pretty_header[16384];
81 pretty_print_commit(commit_format, commit, ~0, pretty_header, sizeof(pretty_header), abbrev);
82 printf("%s%c", pretty_header, hdr_termination);
87 static struct object_list **process_blob(struct blob *blob,
88 struct object_list **p,
89 struct name_path *path,
92 struct object *obj = &blob->object;
94 if (!revs.blob_objects)
96 if (obj->flags & (UNINTERESTING | SEEN))
99 return add_object(obj, p, path, name);
102 static struct object_list **process_tree(struct tree *tree,
103 struct object_list **p,
104 struct name_path *path,
107 struct object *obj = &tree->object;
108 struct tree_entry_list *entry;
111 if (!revs.tree_objects)
113 if (obj->flags & (UNINTERESTING | SEEN))
115 if (parse_tree(tree) < 0)
116 die("bad tree object %s", sha1_to_hex(obj->sha1));
118 p = add_object(obj, p, path, name);
121 me.elem_len = strlen(name);
122 entry = tree->entries;
123 tree->entries = NULL;
125 struct tree_entry_list *next = entry->next;
126 if (entry->directory)
127 p = process_tree(entry->item.tree, p, &me, entry->name);
129 p = process_blob(entry->item.blob, p, &me, entry->name);
136 static void show_commit_list(struct rev_info *revs)
138 struct commit *commit;
139 struct object_list *objects = NULL, **p = &objects, *pending;
141 while ((commit = get_revision(revs)) != NULL) {
142 p = process_tree(commit->tree, p, NULL, "");
145 for (pending = revs->pending_objects; pending; pending = pending->next) {
146 struct object *obj = pending->item;
147 const char *name = pending->name;
148 if (obj->flags & (UNINTERESTING | SEEN))
150 if (obj->type == tag_type) {
152 p = add_object(obj, p, NULL, name);
155 if (obj->type == tree_type) {
156 p = process_tree((struct tree *)obj, p, NULL, name);
159 if (obj->type == blob_type) {
160 p = process_blob((struct blob *)obj, p, NULL, name);
163 die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
166 /* An object with name "foo\n0000000..." can be used to
167 * confuse downstream git-pack-objects very badly.
169 const char *ep = strchr(objects->name, '\n');
171 printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
172 (int) (ep - objects->name),
176 printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
177 objects = objects->next;
182 * This is a truly stupid algorithm, but it's only
183 * used for bisection, and we just don't care enough.
185 * We care just barely enough to avoid recursing for
188 static int count_distance(struct commit_list *entry)
193 struct commit *commit = entry->item;
194 struct commit_list *p;
196 if (commit->object.flags & (UNINTERESTING | COUNTED))
198 if (!revs.prune_fn || (commit->object.flags & TREECHANGE))
200 commit->object.flags |= COUNTED;
206 nr += count_distance(p);
215 static void clear_distance(struct commit_list *list)
218 struct commit *commit = list->item;
219 commit->object.flags &= ~COUNTED;
224 static struct commit_list *find_bisection(struct commit_list *list)
227 struct commit_list *p, *best;
232 if (!revs.prune_fn || (p->item->object.flags & TREECHANGE))
239 for (p = list; p; p = p->next) {
242 if (revs.prune_fn && !(p->item->object.flags & TREECHANGE))
245 distance = count_distance(p);
246 clear_distance(list);
247 if (nr - distance < distance)
248 distance = nr - distance;
249 if (distance > closest) {
259 static void mark_edge_parents_uninteresting(struct commit *commit)
261 struct commit_list *parents;
263 for (parents = commit->parents; parents; parents = parents->next) {
264 struct commit *parent = parents->item;
265 if (!(parent->object.flags & UNINTERESTING))
267 mark_tree_uninteresting(parent->tree);
268 if (revs.edge_hint && !(parent->object.flags & SHOWN)) {
269 parent->object.flags |= SHOWN;
270 printf("-%s\n", sha1_to_hex(parent->object.sha1));
275 static void mark_edges_uninteresting(struct commit_list *list)
277 for ( ; list; list = list->next) {
278 struct commit *commit = list->item;
280 if (commit->object.flags & UNINTERESTING) {
281 mark_tree_uninteresting(commit->tree);
284 mark_edge_parents_uninteresting(commit);
288 int main(int argc, const char **argv)
290 struct commit_list *list;
293 argc = setup_revisions(argc, argv, &revs, NULL);
295 for (i = 1 ; i < argc; i++) {
296 const char *arg = argv[i];
298 /* accept -<digit>, like traditilnal "head" */
299 if ((*arg == '-') && isdigit(arg[1])) {
300 revs.max_count = atoi(arg + 1);
303 if (!strcmp(arg, "-n")) {
305 die("-n requires an argument");
306 revs.max_count = atoi(argv[i]);
309 if (!strncmp(arg,"-n",2)) {
310 revs.max_count = atoi(arg + 2);
313 if (!strcmp(arg, "--header")) {
317 if (!strcmp(arg, "--no-abbrev")) {
321 if (!strncmp(arg, "--abbrev=", 9)) {
322 abbrev = strtoul(arg + 9, NULL, 10);
323 if (abbrev && abbrev < MINIMUM_ABBREV)
324 abbrev = MINIMUM_ABBREV;
325 else if (40 < abbrev)
329 if (!strncmp(arg, "--pretty", 8)) {
330 commit_format = get_commit_format(arg+8);
332 hdr_termination = '\n';
333 if (commit_format == CMIT_FMT_ONELINE)
336 commit_prefix = "commit ";
339 if (!strcmp(arg, "--parents")) {
343 if (!strcmp(arg, "--timestamp")) {
347 if (!strcmp(arg, "--bisect")) {
351 usage(rev_list_usage);
358 (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) && !revs.pending_objects))
359 usage(rev_list_usage);
361 prepare_revision_walk(&revs);
362 if (revs.tree_objects)
363 mark_edges_uninteresting(revs.commits);
366 revs.commits = find_bisection(revs.commits);
368 save_commit_buffer = verbose_header;
369 track_object_refs = 0;
371 show_commit_list(&revs);