]>
git.ipfire.org Git - thirdparty/git.git/blob - builtin/rev-list.c
5 #include "list-objects.h"
11 static const char rev_list_usage
[] =
12 "git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
15 " --max-age=<epoch>\n"
16 " --min-age=<epoch>\n"
19 " --min-parents=<n>\n"
21 " --max-parents=<n>\n"
34 " formatting output:\n"
37 " --objects | --objects-edge\n"
39 " --header | --pretty\n"
40 " --abbrev=<n> | --no-abbrev\n"
49 static void finish_commit(struct commit
*commit
, void *data
);
50 static void show_commit(struct commit
*commit
, void *data
)
52 struct rev_list_info
*info
= data
;
53 struct rev_info
*revs
= info
->revs
;
55 graph_show_commit(revs
->graph
);
58 if (commit
->object
.flags
& PATCHSAME
)
60 else if (commit
->object
.flags
& SYMMETRIC_LEFT
)
64 finish_commit(commit
, data
);
68 if (info
->show_timestamp
)
69 printf("%lu ", commit
->date
);
70 if (info
->header_prefix
)
71 fputs(info
->header_prefix
, stdout
);
74 fputs(get_revision_mark(revs
, commit
), stdout
);
75 if (revs
->abbrev_commit
&& revs
->abbrev
)
76 fputs(find_unique_abbrev(commit
->object
.sha1
, revs
->abbrev
),
79 fputs(sha1_to_hex(commit
->object
.sha1
), stdout
);
80 if (revs
->print_parents
) {
81 struct commit_list
*parents
= commit
->parents
;
83 printf(" %s", sha1_to_hex(parents
->item
->object
.sha1
));
84 parents
= parents
->next
;
87 if (revs
->children
.name
) {
88 struct commit_list
*children
;
90 children
= lookup_decoration(&revs
->children
, &commit
->object
);
92 printf(" %s", sha1_to_hex(children
->item
->object
.sha1
));
93 children
= children
->next
;
96 show_decorations(revs
, commit
);
97 if (revs
->commit_format
== CMIT_FMT_ONELINE
)
102 if (revs
->verbose_header
&& commit
->buffer
) {
103 struct strbuf buf
= STRBUF_INIT
;
104 struct pretty_print_context ctx
= {0};
105 ctx
.abbrev
= revs
->abbrev
;
106 ctx
.date_mode
= revs
->date_mode
;
107 ctx
.fmt
= revs
->commit_format
;
108 pretty_print_commit(&ctx
, commit
, &buf
);
111 if (revs
->commit_format
!= CMIT_FMT_ONELINE
)
112 graph_show_oneline(revs
->graph
);
114 graph_show_commit_msg(revs
->graph
, &buf
);
117 * Add a newline after the commit message.
119 * Usually, this newline produces a blank
120 * padding line between entries, in which case
121 * we need to add graph padding on this line.
123 * However, the commit message may not end in a
124 * newline. In this case the newline simply
125 * ends the last line of the commit message,
126 * and we don't need any graph output. (This
127 * always happens with CMIT_FMT_ONELINE, and it
128 * happens with CMIT_FMT_USERFORMAT when the
129 * format doesn't explicitly end in a newline.)
131 if (buf
.len
&& buf
.buf
[buf
.len
- 1] == '\n')
132 graph_show_padding(revs
->graph
);
136 * If the message buffer is empty, just show
137 * the rest of the graph output for this
140 if (graph_show_remainder(revs
->graph
))
142 if (revs
->commit_format
== CMIT_FMT_ONELINE
)
146 if (revs
->commit_format
!= CMIT_FMT_USERFORMAT
||
148 fwrite(buf
.buf
, 1, buf
.len
, stdout
);
149 putchar(info
->hdr_termination
);
152 strbuf_release(&buf
);
154 if (graph_show_remainder(revs
->graph
))
157 maybe_flush_or_die(stdout
, "stdout");
158 finish_commit(commit
, data
);
161 static void finish_commit(struct commit
*commit
, void *data
)
163 if (commit
->parents
) {
164 free_commit_list(commit
->parents
);
165 commit
->parents
= NULL
;
167 free(commit
->buffer
);
168 commit
->buffer
= NULL
;
171 static void finish_object(struct object
*obj
, const struct name_path
*path
, const char *name
)
173 if (obj
->type
== OBJ_BLOB
&& !has_sha1_file(obj
->sha1
))
174 die("missing blob object '%s'", sha1_to_hex(obj
->sha1
));
177 static void show_object(struct object
*obj
, const struct name_path
*path
, const char *component
)
179 finish_object(obj
, path
, component
);
180 show_object_with_name(stdout
, obj
, path
, component
);
183 static void show_edge(struct commit
*commit
)
185 printf("-%s\n", sha1_to_hex(commit
->object
.sha1
));
188 static inline int log2i(int n
)
192 for (; n
> 1; n
>>= 1)
198 static inline int exp2i(int n
)
204 * Estimate the number of bisect steps left (after the current step)
206 * For any x between 0 included and 2^n excluded, the probability for
207 * n - 1 steps left looks like:
209 * P(2^n + x) == (2^n - x) / (2^n + x)
211 * and P(2^n + x) < 0.5 means 2^n < 3x
213 int estimate_bisect_steps(int all
)
224 return (e
< 3 * x
) ? n
: n
- 1;
227 void print_commit_list(struct commit_list
*list
,
228 const char *format_cur
,
229 const char *format_last
)
231 for ( ; list
; list
= list
->next
) {
232 const char *format
= list
->next
? format_cur
: format_last
;
233 printf(format
, sha1_to_hex(list
->item
->object
.sha1
));
237 static void show_tried_revs(struct commit_list
*tried
)
239 printf("bisect_tried='");
240 print_commit_list(tried
, "%s|", "%s");
244 static void print_var_str(const char *var
, const char *val
)
246 printf("%s='%s'\n", var
, val
);
249 static void print_var_int(const char *var
, int val
)
251 printf("%s=%d\n", var
, val
);
254 static int show_bisect_vars(struct rev_list_info
*info
, int reaches
, int all
)
256 int cnt
, flags
= info
->bisect_show_flags
;
258 struct commit_list
*tried
;
259 struct rev_info
*revs
= info
->revs
;
261 if (!revs
->commits
&& !(flags
& BISECT_SHOW_TRIED
))
264 revs
->commits
= filter_skipped(revs
->commits
, &tried
,
265 flags
& BISECT_SHOW_ALL
,
269 * revs->commits can reach "reaches" commits among
270 * "all" commits. If it is good, then there are
271 * (all-reaches) commits left to be bisected.
272 * On the other hand, if it is bad, then the set
273 * to bisect is "reaches".
274 * A bisect set of size N has (N-1) commits further
275 * to test, as we already know one bad one.
282 strcpy(hex
, sha1_to_hex(revs
->commits
->item
->object
.sha1
));
284 if (flags
& BISECT_SHOW_ALL
) {
285 traverse_commit_list(revs
, show_commit
, show_object
, info
);
289 if (flags
& BISECT_SHOW_TRIED
)
290 show_tried_revs(tried
);
292 print_var_str("bisect_rev", hex
);
293 print_var_int("bisect_nr", cnt
- 1);
294 print_var_int("bisect_good", all
- reaches
- 1);
295 print_var_int("bisect_bad", reaches
- 1);
296 print_var_int("bisect_all", all
);
297 print_var_int("bisect_steps", estimate_bisect_steps(all
));
302 int cmd_rev_list(int argc
, const char **argv
, const char *prefix
)
304 struct rev_info revs
;
305 struct rev_list_info info
;
308 int bisect_show_vars
= 0;
309 int bisect_find_all
= 0;
312 git_config(git_default_config
, NULL
);
313 init_revisions(&revs
, prefix
);
314 revs
.abbrev
= DEFAULT_ABBREV
;
315 revs
.commit_format
= CMIT_FMT_UNSPECIFIED
;
316 argc
= setup_revisions(argc
, argv
, &revs
, NULL
);
318 memset(&info
, 0, sizeof(info
));
323 quiet
= DIFF_OPT_TST(&revs
.diffopt
, QUICK
);
324 for (i
= 1 ; i
< argc
; i
++) {
325 const char *arg
= argv
[i
];
327 if (!strcmp(arg
, "--header")) {
328 revs
.verbose_header
= 1;
331 if (!strcmp(arg
, "--timestamp")) {
332 info
.show_timestamp
= 1;
335 if (!strcmp(arg
, "--bisect")) {
339 if (!strcmp(arg
, "--bisect-all")) {
342 info
.bisect_show_flags
= BISECT_SHOW_ALL
;
343 revs
.show_decorations
= 1;
346 if (!strcmp(arg
, "--bisect-vars")) {
348 bisect_show_vars
= 1;
351 usage(rev_list_usage
);
354 if (revs
.commit_format
!= CMIT_FMT_UNSPECIFIED
) {
355 /* The command line has a --pretty */
356 info
.hdr_termination
= '\n';
357 if (revs
.commit_format
== CMIT_FMT_ONELINE
)
358 info
.header_prefix
= "";
360 info
.header_prefix
= "commit ";
362 else if (revs
.verbose_header
)
363 /* Only --header was specified */
364 revs
.commit_format
= CMIT_FMT_RAW
;
366 if ((!revs
.commits
&&
367 (!(revs
.tag_objects
||revs
.tree_objects
||revs
.blob_objects
) &&
368 !revs
.pending
.nr
)) ||
370 usage(rev_list_usage
);
372 save_commit_buffer
= (revs
.verbose_header
||
373 revs
.grep_filter
.pattern_list
||
374 revs
.grep_filter
.header_list
);
378 if (prepare_revision_walk(&revs
))
379 die("revision walk setup failed");
380 if (revs
.tree_objects
)
381 mark_edges_uninteresting(revs
.commits
, &revs
, show_edge
);
384 int reaches
= reaches
, all
= all
;
386 revs
.commits
= find_bisection(revs
.commits
, &reaches
, &all
,
389 if (bisect_show_vars
)
390 return show_bisect_vars(&info
, reaches
, all
);
393 traverse_commit_list(&revs
,
394 quiet
? finish_commit
: show_commit
,
395 quiet
? finish_object
: show_object
,
399 if (revs
.left_right
&& revs
.cherry_mark
)
400 printf("%d\t%d\t%d\n", revs
.count_left
, revs
.count_right
, revs
.count_same
);
401 else if (revs
.left_right
)
402 printf("%d\t%d\n", revs
.count_left
, revs
.count_right
);
403 else if (revs
.cherry_mark
)
404 printf("%d\t%d\n", revs
.count_left
+ revs
.count_right
, revs
.count_same
);
406 printf("%d\n", revs
.count_left
+ revs
.count_right
);