1#include "cache.h"
2#include "commit.h"
3#include "diff.h"
4#include "revision.h"
5#include "list-objects.h"
6#include "builtin.h"
7#include "log-tree.h"
8#include "graph.h"
9#include "bisect.h"
10static const char rev_list_usage[] =
12"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
13" limiting output:\n"
14" --max-count=<n>\n"
15" --max-age=<epoch>\n"
16" --min-age=<epoch>\n"
17" --sparse\n"
18" --no-merges\n"
19" --min-parents=<n>\n"
20" --no-min-parents\n"
21" --max-parents=<n>\n"
22" --no-max-parents\n"
23" --remove-empty\n"
24" --all\n"
25" --branches\n"
26" --tags\n"
27" --remotes\n"
28" --stdin\n"
29" --quiet\n"
30" ordering output:\n"
31" --topo-order\n"
32" --date-order\n"
33" --reverse\n"
34" formatting output:\n"
35" --parents\n"
36" --children\n"
37" --objects | --objects-edge\n"
38" --unpacked\n"
39" --header | --pretty\n"
40" --abbrev=<n> | --no-abbrev\n"
41" --abbrev-commit\n"
42" --left-right\n"
43" special purpose:\n"
44" --bisect\n"
45" --bisect-vars\n"
46" --bisect-all"
47;
48static void finish_commit(struct commit *commit, void *data);
50static void show_commit(struct commit *commit, void *data)
51{
52 struct rev_list_info *info = data;
53 struct rev_info *revs = info->revs;
54 if (info->flags & REV_LIST_QUIET) {
56 finish_commit(commit, data);
57 return;
58 }
59 graph_show_commit(revs->graph);
61 if (revs->count) {
63 if (commit->object.flags & PATCHSAME)
64 revs->count_same++;
65 else if (commit->object.flags & SYMMETRIC_LEFT)
66 revs->count_left++;
67 else
68 revs->count_right++;
69 finish_commit(commit, data);
70 return;
71 }
72 if (info->show_timestamp)
74 printf("%lu ", commit->date);
75 if (info->header_prefix)
76 fputs(info->header_prefix, stdout);
77 if (!revs->graph)
79 fputs(get_revision_mark(revs, commit), stdout);
80 if (revs->abbrev_commit && revs->abbrev)
81 fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev),
82 stdout);
83 else
84 fputs(sha1_to_hex(commit->object.sha1), stdout);
85 if (revs->print_parents) {
86 struct commit_list *parents = commit->parents;
87 while (parents) {
88 printf(" %s", sha1_to_hex(parents->item->object.sha1));
89 parents = parents->next;
90 }
91 }
92 if (revs->children.name) {
93 struct commit_list *children;
94 children = lookup_decoration(&revs->children, &commit->object);
96 while (children) {
97 printf(" %s", sha1_to_hex(children->item->object.sha1));
98 children = children->next;
99 }
100 }
101 show_decorations(revs, commit);
102 if (revs->commit_format == CMIT_FMT_ONELINE)
103 putchar(' ');
104 else
105 putchar('\n');
106 if (revs->verbose_header && commit->buffer) {
108 struct strbuf buf = STRBUF_INIT;
109 struct pretty_print_context ctx = {0};
110 ctx.abbrev = revs->abbrev;
111 ctx.date_mode = revs->date_mode;
112 ctx.date_mode_explicit = revs->date_mode_explicit;
113 ctx.fmt = revs->commit_format;
114 ctx.output_encoding = get_log_output_encoding();
115 pretty_print_commit(&ctx, commit, &buf);
116 if (revs->graph) {
117 if (buf.len) {
118 if (revs->commit_format != CMIT_FMT_ONELINE)
119 graph_show_oneline(revs->graph);
120 graph_show_commit_msg(revs->graph, &buf);
122 /*
124 * Add a newline after the commit message.
125 *
126 * Usually, this newline produces a blank
127 * padding line between entries, in which case
128 * we need to add graph padding on this line.
129 *
130 * However, the commit message may not end in a
131 * newline. In this case the newline simply
132 * ends the last line of the commit message,
133 * and we don't need any graph output. (This
134 * always happens with CMIT_FMT_ONELINE, and it
135 * happens with CMIT_FMT_USERFORMAT when the
136 * format doesn't explicitly end in a newline.)
137 */
138 if (buf.len && buf.buf[buf.len - 1] == '\n')
139 graph_show_padding(revs->graph);
140 putchar('\n');
141 } else {
142 /*
143 * If the message buffer is empty, just show
144 * the rest of the graph output for this
145 * commit.
146 */
147 if (graph_show_remainder(revs->graph))
148 putchar('\n');
149 if (revs->commit_format == CMIT_FMT_ONELINE)
150 putchar('\n');
151 }
152 } else {
153 if (revs->commit_format != CMIT_FMT_USERFORMAT ||
154 buf.len) {
155 fwrite(buf.buf, 1, buf.len, stdout);
156 putchar(info->hdr_termination);
157 }
158 }
159 strbuf_release(&buf);
160 } else {
161 if (graph_show_remainder(revs->graph))
162 putchar('\n');
163 }
164 maybe_flush_or_die(stdout, "stdout");
165 finish_commit(commit, data);
166}
167static void finish_commit(struct commit *commit, void *data)
169{
170 if (commit->parents) {
171 free_commit_list(commit->parents);
172 commit->parents = NULL;
173 }
174 free(commit->buffer);
175 commit->buffer = NULL;
176}
177static void finish_object(struct object *obj,
179 const struct name_path *path, const char *name,
180 void *cb_data)
181{
182 struct rev_list_info *info = cb_data;
183 if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1))
184 die("missing blob object '%s'", sha1_to_hex(obj->sha1));
185 if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
186 parse_object(obj->sha1);
187}
188static void show_object(struct object *obj,
190 const struct name_path *path, const char *component,
191 void *cb_data)
192{
193 struct rev_list_info *info = cb_data;
194 finish_object(obj, path, component, cb_data);
195 if (info->flags & REV_LIST_QUIET)
196 return;
197 show_object_with_name(stdout, obj, path, component);
198}
199static void show_edge(struct commit *commit)
201{
202 printf("-%s\n", sha1_to_hex(commit->object.sha1));
203}
204static void print_var_str(const char *var, const char *val)
206{
207 printf("%s='%s'\n", var, val);
208}
209static void print_var_int(const char *var, int val)
211{
212 printf("%s=%d\n", var, val);
213}
214static int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
216{
217 int cnt, flags = info->flags;
218 char hex[41] = "";
219 struct commit_list *tried;
220 struct rev_info *revs = info->revs;
221 if (!revs->commits)
223 return 1;
224 revs->commits = filter_skipped(revs->commits, &tried,
226 flags & BISECT_SHOW_ALL,
227 NULL, NULL);
228 /*
230 * revs->commits can reach "reaches" commits among
231 * "all" commits. If it is good, then there are
232 * (all-reaches) commits left to be bisected.
233 * On the other hand, if it is bad, then the set
234 * to bisect is "reaches".
235 * A bisect set of size N has (N-1) commits further
236 * to test, as we already know one bad one.
237 */
238 cnt = all - reaches;
239 if (cnt < reaches)
240 cnt = reaches;
241 if (revs->commits)
243 strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
244 if (flags & BISECT_SHOW_ALL) {
246 traverse_commit_list(revs, show_commit, show_object, info);
247 printf("------\n");
248 }
249 print_var_str("bisect_rev", hex);
251 print_var_int("bisect_nr", cnt - 1);
252 print_var_int("bisect_good", all - reaches - 1);
253 print_var_int("bisect_bad", reaches - 1);
254 print_var_int("bisect_all", all);
255 print_var_int("bisect_steps", estimate_bisect_steps(all));
256 return 0;
258}
259int cmd_rev_list(int argc, const char **argv, const char *prefix)
261{
262 struct rev_info revs;
263 struct rev_list_info info;
264 int i;
265 int bisect_list = 0;
266 int bisect_show_vars = 0;
267 int bisect_find_all = 0;
268 git_config(git_default_config, NULL);
270 init_revisions(&revs, prefix);
271 revs.abbrev = DEFAULT_ABBREV;
272 revs.commit_format = CMIT_FMT_UNSPECIFIED;
273 argc = setup_revisions(argc, argv, &revs, NULL);
274 memset(&info, 0, sizeof(info));
276 info.revs = &revs;
277 if (revs.bisect)
278 bisect_list = 1;
279 if (DIFF_OPT_TST(&revs.diffopt, QUICK))
281 info.flags |= REV_LIST_QUIET;
282 for (i = 1 ; i < argc; i++) {
283 const char *arg = argv[i];
284 if (!strcmp(arg, "--header")) {
286 revs.verbose_header = 1;
287 continue;
288 }
289 if (!strcmp(arg, "--timestamp")) {
290 info.show_timestamp = 1;
291 continue;
292 }
293 if (!strcmp(arg, "--bisect")) {
294 bisect_list = 1;
295 continue;
296 }
297 if (!strcmp(arg, "--bisect-all")) {
298 bisect_list = 1;
299 bisect_find_all = 1;
300 info.flags |= BISECT_SHOW_ALL;
301 revs.show_decorations = 1;
302 continue;
303 }
304 if (!strcmp(arg, "--bisect-vars")) {
305 bisect_list = 1;
306 bisect_show_vars = 1;
307 continue;
308 }
309 usage(rev_list_usage);
310 }
312 if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
313 /* The command line has a --pretty */
314 info.hdr_termination = '\n';
315 if (revs.commit_format == CMIT_FMT_ONELINE)
316 info.header_prefix = "";
317 else
318 info.header_prefix = "commit ";
319 }
320 else if (revs.verbose_header)
321 /* Only --header was specified */
322 revs.commit_format = CMIT_FMT_RAW;
323 if ((!revs.commits &&
325 (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) &&
326 !revs.pending.nr)) ||
327 revs.diff)
328 usage(rev_list_usage);
329 save_commit_buffer = (revs.verbose_header ||
331 revs.grep_filter.pattern_list ||
332 revs.grep_filter.header_list);
333 if (bisect_list)
334 revs.limited = 1;
335 if (prepare_revision_walk(&revs))
337 die("revision walk setup failed");
338 if (revs.tree_objects)
339 mark_edges_uninteresting(&revs, show_edge);
340 if (bisect_list) {
342 int reaches = reaches, all = all;
343 revs.commits = find_bisection(revs.commits, &reaches, &all,
345 bisect_find_all);
346 if (bisect_show_vars)
348 return show_bisect_vars(&info, reaches, all);
349 }
350 traverse_commit_list(&revs, show_commit, show_object, &info);
352 if (revs.count) {
354 if (revs.left_right && revs.cherry_mark)
355 printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same);
356 else if (revs.left_right)
357 printf("%d\t%d\n", revs.count_left, revs.count_right);
358 else if (revs.cherry_mark)
359 printf("%d\t%d\n", revs.count_left + revs.count_right, revs.count_same);
360 else
361 printf("%d\n", revs.count_left + revs.count_right);
362 }
363 return 0;
365}