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_array_entry *p, void *data)
161 if (p->item->type == OBJ_BLOB && !has_sha1_file(p->item->sha1))
162 die("missing blob object '%s'", sha1_to_hex(p->item->sha1));
165 static void show_object(struct object_array_entry *p, void *data)
167 /* An object with name "foo\n0000000..." can be used to
168 * confuse downstream "git pack-objects" very badly.
170 const char *ep = strchr(p->name, '\n');
172 finish_object(p, data);
174 printf("%s %.*s\n", sha1_to_hex(p->item->sha1),
175 (int) (ep - p->name),
179 printf("%s %s\n", sha1_to_hex(p->item->sha1), p->name);
182 static void show_edge(struct commit *commit)
184 printf("-%s\n", sha1_to_hex(commit->object.sha1));
187 static inline int log2i(int n)
191 for (; n > 1; n >>= 1)
197 static inline int exp2i(int n)
203 * Estimate the number of bisect steps left (after the current step)
205 * For any x between 0 included and 2^n excluded, the probability for
206 * n - 1 steps left looks like:
208 * P(2^n + x) == (2^n - x) / (2^n + x)
210 * and P(2^n + x) < 0.5 means 2^n < 3x
212 static int estimate_bisect_steps(int all)
223 return (e < 3 * x) ? n : n - 1;
226 static void show_tried_revs(struct commit_list *tried, int stringed)
228 printf("bisect_tried='");
229 for (;tried; tried = tried->next) {
230 char *format = tried->next ? "%s|" : "%s";
231 printf(format, sha1_to_hex(tried->item->object.sha1));
233 printf(stringed ? "' &&\n" : "'\n");
236 int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
238 int cnt, flags = info->bisect_show_flags;
239 char hex[41] = "", *format;
240 struct commit_list *tried;
241 struct rev_info *revs = info->revs;
243 if (!revs->commits && !(flags & BISECT_SHOW_TRIED))
246 revs->commits = filter_skipped(revs->commits, &tried, flags & BISECT_SHOW_ALL);
249 * revs->commits can reach "reaches" commits among
250 * "all" commits. If it is good, then there are
251 * (all-reaches) commits left to be bisected.
252 * On the other hand, if it is bad, then the set
253 * to bisect is "reaches".
254 * A bisect set of size N has (N-1) commits further
255 * to test, as we already know one bad one.
262 strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
264 if (flags & BISECT_SHOW_ALL) {
265 traverse_commit_list(revs, show_commit, show_object, info);
269 if (flags & BISECT_SHOW_TRIED)
270 show_tried_revs(tried, flags & BISECT_SHOW_STRINGED);
271 format = (flags & BISECT_SHOW_STRINGED) ?
274 "bisect_good=%d &&\n"
291 estimate_bisect_steps(all));
296 int cmd_rev_list(int argc, const char **argv, const char *prefix)
298 struct rev_info revs;
299 struct rev_list_info info;
301 int read_from_stdin = 0;
303 int bisect_show_vars = 0;
304 int bisect_find_all = 0;
307 git_config(git_default_config, NULL);
308 init_revisions(&revs, prefix);
310 revs.commit_format = CMIT_FMT_UNSPECIFIED;
311 argc = setup_revisions(argc, argv, &revs, NULL);
313 memset(&info, 0, sizeof(info));
316 quiet = DIFF_OPT_TST(&revs.diffopt, QUIET);
317 for (i = 1 ; i < argc; i++) {
318 const char *arg = argv[i];
320 if (!strcmp(arg, "--header")) {
321 revs.verbose_header = 1;
324 if (!strcmp(arg, "--timestamp")) {
325 info.show_timestamp = 1;
328 if (!strcmp(arg, "--bisect")) {
332 if (!strcmp(arg, "--bisect-all")) {
335 info.bisect_show_flags = BISECT_SHOW_ALL;
336 revs.show_decorations = 1;
339 if (!strcmp(arg, "--bisect-vars")) {
341 bisect_show_vars = 1;
344 if (!strcmp(arg, "--stdin")) {
345 if (read_from_stdin++)
346 die("--stdin given twice?");
347 read_revisions_from_stdin(&revs);
350 usage(rev_list_usage);
353 if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
354 /* The command line has a --pretty */
355 info.hdr_termination = '\n';
356 if (revs.commit_format == CMIT_FMT_ONELINE)
357 info.header_prefix = "";
359 info.header_prefix = "commit ";
361 else if (revs.verbose_header)
362 /* Only --header was specified */
363 revs.commit_format = CMIT_FMT_RAW;
365 if ((!revs.commits &&
366 (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
367 !revs.pending.nr)) ||
369 usage(rev_list_usage);
371 save_commit_buffer = revs.verbose_header ||
372 revs.grep_filter.pattern_list;
376 if (prepare_revision_walk(&revs))
377 die("revision walk setup failed");
378 if (revs.tree_objects)
379 mark_edges_uninteresting(revs.commits, &revs, show_edge);
382 int reaches = reaches, all = all;
384 revs.commits = find_bisection(revs.commits, &reaches, &all,
387 if (bisect_show_vars)
388 return show_bisect_vars(&info, reaches, all);
391 traverse_commit_list(&revs,
392 quiet ? finish_commit : show_commit,
393 quiet ? finish_object : show_object,