5 #include "list-objects.h"
11 static const char rev_list_usage[] =
12 "git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
30 " formatting output:\n"
33 " --objects | --objects-edge\n"
35 " --header | --pretty\n"
36 " --abbrev=nr | --no-abbrev\n"
45 static void finish_commit(struct commit *commit, void *data);
46 static void show_commit(struct commit *commit, void *data)
48 struct rev_list_info *info = data;
49 struct rev_info *revs = info->revs;
51 graph_show_commit(revs->graph);
53 if (info->show_timestamp)
54 printf("%lu ", commit->date);
55 if (info->header_prefix)
56 fputs(info->header_prefix, stdout);
59 if (commit->object.flags & BOUNDARY)
61 else if (commit->object.flags & UNINTERESTING)
63 else if (revs->left_right) {
64 if (commit->object.flags & SYMMETRIC_LEFT)
70 if (revs->abbrev_commit && revs->abbrev)
71 fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev),
74 fputs(sha1_to_hex(commit->object.sha1), stdout);
75 if (revs->print_parents) {
76 struct commit_list *parents = commit->parents;
78 printf(" %s", sha1_to_hex(parents->item->object.sha1));
79 parents = parents->next;
82 if (revs->children.name) {
83 struct commit_list *children;
85 children = lookup_decoration(&revs->children, &commit->object);
87 printf(" %s", sha1_to_hex(children->item->object.sha1));
88 children = children->next;
91 show_decorations(revs, commit);
92 if (revs->commit_format == CMIT_FMT_ONELINE)
97 if (revs->verbose_header && commit->buffer) {
98 struct strbuf buf = STRBUF_INIT;
99 pretty_print_commit(revs->commit_format, commit,
100 &buf, revs->abbrev, NULL, NULL,
104 if (revs->commit_format != CMIT_FMT_ONELINE)
105 graph_show_oneline(revs->graph);
107 graph_show_commit_msg(revs->graph, &buf);
110 * Add a newline after the commit message.
112 * Usually, this newline produces a blank
113 * padding line between entries, in which case
114 * we need to add graph padding on this line.
116 * However, the commit message may not end in a
117 * newline. In this case the newline simply
118 * ends the last line of the commit message,
119 * and we don't need any graph output. (This
120 * always happens with CMIT_FMT_ONELINE, and it
121 * happens with CMIT_FMT_USERFORMAT when the
122 * format doesn't explicitly end in a newline.)
124 if (buf.len && buf.buf[buf.len - 1] == '\n')
125 graph_show_padding(revs->graph);
129 * If the message buffer is empty, just show
130 * the rest of the graph output for this
133 if (graph_show_remainder(revs->graph))
138 printf("%s%c", buf.buf, info->hdr_termination);
140 strbuf_release(&buf);
142 if (graph_show_remainder(revs->graph))
145 maybe_flush_or_die(stdout, "stdout");
146 finish_commit(commit, data);
149 static void finish_commit(struct commit *commit, void *data)
151 if (commit->parents) {
152 free_commit_list(commit->parents);
153 commit->parents = NULL;
155 free(commit->buffer);
156 commit->buffer = NULL;
159 static void finish_object(struct object *obj, const struct name_path *path, const char *name)
161 if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1))
162 die("missing blob object '%s'", sha1_to_hex(obj->sha1));
165 static void show_object(struct object *obj, const struct name_path *path, const char *component)
167 char *name = path_name(path, component);
168 /* An object with name "foo\n0000000..." can be used to
169 * confuse downstream "git pack-objects" very badly.
171 const char *ep = strchr(name, '\n');
173 finish_object(obj, path, name);
175 printf("%s %.*s\n", sha1_to_hex(obj->sha1),
180 printf("%s %s\n", sha1_to_hex(obj->sha1), name);
184 static void show_edge(struct commit *commit)
186 printf("-%s\n", sha1_to_hex(commit->object.sha1));
189 static inline int log2i(int n)
193 for (; n > 1; n >>= 1)
199 static inline int exp2i(int n)
205 * Estimate the number of bisect steps left (after the current step)
207 * For any x between 0 included and 2^n excluded, the probability for
208 * n - 1 steps left looks like:
210 * P(2^n + x) == (2^n - x) / (2^n + x)
212 * and P(2^n + x) < 0.5 means 2^n < 3x
214 int estimate_bisect_steps(int all)
225 return (e < 3 * x) ? n : n - 1;
228 void print_commit_list(struct commit_list *list,
229 const char *format_cur,
230 const char *format_last)
232 for ( ; list; list = list->next) {
233 const char *format = list->next ? format_cur : format_last;
234 printf(format, sha1_to_hex(list->item->object.sha1));
238 static void show_tried_revs(struct commit_list *tried)
240 printf("bisect_tried='");
241 print_commit_list(tried, "%s|", "%s");
245 static void print_var_str(const char *var, const char *val)
247 printf("%s='%s'\n", var, val);
250 static void print_var_int(const char *var, int val)
252 printf("%s=%d\n", var, val);
255 int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
257 int cnt, flags = info->bisect_show_flags;
259 struct commit_list *tried;
260 struct rev_info *revs = info->revs;
262 if (!revs->commits && !(flags & BISECT_SHOW_TRIED))
265 revs->commits = filter_skipped(revs->commits, &tried, flags & BISECT_SHOW_ALL);
268 * revs->commits can reach "reaches" commits among
269 * "all" commits. If it is good, then there are
270 * (all-reaches) commits left to be bisected.
271 * On the other hand, if it is bad, then the set
272 * to bisect is "reaches".
273 * A bisect set of size N has (N-1) commits further
274 * to test, as we already know one bad one.
281 strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
283 if (flags & BISECT_SHOW_ALL) {
284 traverse_commit_list(revs, show_commit, show_object, info);
288 if (flags & BISECT_SHOW_TRIED)
289 show_tried_revs(tried);
291 print_var_str("bisect_rev", hex);
292 print_var_int("bisect_nr", cnt - 1);
293 print_var_int("bisect_good", all - reaches - 1);
294 print_var_int("bisect_bad", reaches - 1);
295 print_var_int("bisect_all", all);
296 print_var_int("bisect_steps", estimate_bisect_steps(all));
301 int cmd_rev_list(int argc, const char **argv, const char *prefix)
303 struct rev_info revs;
304 struct rev_list_info info;
306 int read_from_stdin = 0;
308 int bisect_show_vars = 0;
309 int bisect_find_all = 0;
312 git_config(git_default_config, NULL);
313 init_revisions(&revs, prefix);
315 revs.commit_format = CMIT_FMT_UNSPECIFIED;
316 argc = setup_revisions(argc, argv, &revs, NULL);
318 memset(&info, 0, sizeof(info));
321 quiet = DIFF_OPT_TST(&revs.diffopt, QUIET);
322 for (i = 1 ; i < argc; i++) {
323 const char *arg = argv[i];
325 if (!strcmp(arg, "--header")) {
326 revs.verbose_header = 1;
329 if (!strcmp(arg, "--timestamp")) {
330 info.show_timestamp = 1;
333 if (!strcmp(arg, "--bisect")) {
337 if (!strcmp(arg, "--bisect-all")) {
340 info.bisect_show_flags = BISECT_SHOW_ALL;
341 revs.show_decorations = 1;
344 if (!strcmp(arg, "--bisect-vars")) {
346 bisect_show_vars = 1;
349 if (!strcmp(arg, "--stdin")) {
350 if (read_from_stdin++)
351 die("--stdin given twice?");
352 read_revisions_from_stdin(&revs);
355 usage(rev_list_usage);
358 if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
359 /* The command line has a --pretty */
360 info.hdr_termination = '\n';
361 if (revs.commit_format == CMIT_FMT_ONELINE)
362 info.header_prefix = "";
364 info.header_prefix = "commit ";
366 else if (revs.verbose_header)
367 /* Only --header was specified */
368 revs.commit_format = CMIT_FMT_RAW;
370 if ((!revs.commits &&
371 (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
372 !revs.pending.nr)) ||
374 usage(rev_list_usage);
376 save_commit_buffer = revs.verbose_header ||
377 revs.grep_filter.pattern_list;
381 if (prepare_revision_walk(&revs))
382 die("revision walk setup failed");
383 if (revs.tree_objects)
384 mark_edges_uninteresting(revs.commits, &revs, show_edge);
387 int reaches = reaches, all = all;
389 revs.commits = find_bisection(revs.commits, &reaches, &all,
392 if (bisect_show_vars)
393 return show_bisect_vars(&info, reaches, all);
396 traverse_commit_list(&revs,
397 quiet ? finish_commit : show_commit,
398 quiet ? finish_object : show_object,