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Commit | Line | Data |
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64745109 | 1 | #include "cache.h" |
e091eb93 | 2 | #include "refs.h" |
36f8d174 | 3 | #include "tag.h" |
64745109 | 4 | #include "commit.h" |
9de48752 LT |
5 | #include "tree.h" |
6 | #include "blob.h" | |
1b0c7174 | 7 | #include "tree-walk.h" |
c4e05b1a | 8 | #include "diff.h" |
ae563542 LT |
9 | #include "revision.h" |
10 | ||
1b65a5aa | 11 | /* bits #0-15 in revision.h */ |
64745109 | 12 | |
1b65a5aa | 13 | #define COUNTED (1u<<16) |
8906300f | 14 | |
a6f68d47 | 15 | static const char rev_list_usage[] = |
69e0c256 JH |
16 | "git-rev-list [OPTION] <commit-id>... [ -- paths... ]\n" |
17 | " limiting output:\n" | |
18 | " --max-count=nr\n" | |
19 | " --max-age=epoch\n" | |
20 | " --min-age=epoch\n" | |
21 | " --sparse\n" | |
22 | " --no-merges\n" | |
93b74bca | 23 | " --remove-empty\n" |
69e0c256 JH |
24 | " --all\n" |
25 | " ordering output:\n" | |
69e0c256 | 26 | " --topo-order\n" |
4c8725f1 | 27 | " --date-order\n" |
69e0c256 JH |
28 | " formatting output:\n" |
29 | " --parents\n" | |
c6496575 | 30 | " --objects | --objects-edge\n" |
69e0c256 JH |
31 | " --unpacked\n" |
32 | " --header | --pretty\n" | |
9da5c2f0 | 33 | " --abbrev=nr | --no-abbrev\n" |
5c51c985 | 34 | " --abbrev-commit\n" |
69e0c256 JH |
35 | " special purpose:\n" |
36 | " --bisect" | |
37 | ; | |
a6f68d47 | 38 | |
ae563542 LT |
39 | struct rev_info revs; |
40 | ||
8b3a1e05 | 41 | static int bisect_list = 0; |
dc68c4ff | 42 | static int show_timestamp = 0; |
81f2bb1f | 43 | static int hdr_termination = 0; |
91539833 | 44 | static const char *header_prefix; |
e646de0d | 45 | |
81f2bb1f LT |
46 | static void show_commit(struct commit *commit) |
47 | { | |
dc68c4ff JH |
48 | if (show_timestamp) |
49 | printf("%lu ", commit->date); | |
91539833 LT |
50 | if (header_prefix) |
51 | fputs(header_prefix, stdout); | |
384e99a4 JH |
52 | if (commit->object.flags & BOUNDARY) |
53 | putchar('-'); | |
7594c4b2 JH |
54 | if (revs.abbrev_commit && revs.abbrev) |
55 | fputs(find_unique_abbrev(commit->object.sha1, revs.abbrev), | |
56 | stdout); | |
5c51c985 JH |
57 | else |
58 | fputs(sha1_to_hex(commit->object.sha1), stdout); | |
7b0c9966 | 59 | if (revs.parents) { |
81f2bb1f LT |
60 | struct commit_list *parents = commit->parents; |
61 | while (parents) { | |
88494423 | 62 | struct object *o = &(parents->item->object); |
81f2bb1f | 63 | parents = parents->next; |
88494423 JH |
64 | if (o->flags & TMP_MARK) |
65 | continue; | |
66 | printf(" %s", sha1_to_hex(o->sha1)); | |
67 | o->flags |= TMP_MARK; | |
81f2bb1f | 68 | } |
88494423 JH |
69 | /* TMP_MARK is a general purpose flag that can |
70 | * be used locally, but the user should clean | |
71 | * things up after it is done with them. | |
72 | */ | |
73 | for (parents = commit->parents; | |
74 | parents; | |
75 | parents = parents->next) | |
76 | parents->item->object.flags &= ~TMP_MARK; | |
81f2bb1f | 77 | } |
7594c4b2 | 78 | if (revs.commit_format == CMIT_FMT_ONELINE) |
d87449c5 JH |
79 | putchar(' '); |
80 | else | |
81 | putchar('\n'); | |
82 | ||
7594c4b2 | 83 | if (revs.verbose_header) { |
000182ea | 84 | static char pretty_header[16384]; |
7594c4b2 JH |
85 | pretty_print_commit(revs.commit_format, commit, ~0, |
86 | pretty_header, sizeof(pretty_header), | |
87 | revs.abbrev); | |
000182ea | 88 | printf("%s%c", pretty_header, hdr_termination); |
7620d39f LT |
89 | } |
90 | fflush(stdout); | |
a3437b8c JS |
91 | } |
92 | ||
e646de0d JH |
93 | static struct object_list **process_blob(struct blob *blob, |
94 | struct object_list **p, | |
95 | struct name_path *path, | |
96 | const char *name) | |
9de48752 LT |
97 | { |
98 | struct object *obj = &blob->object; | |
99 | ||
ae563542 | 100 | if (!revs.blob_objects) |
9de48752 LT |
101 | return p; |
102 | if (obj->flags & (UNINTERESTING | SEEN)) | |
103 | return p; | |
104 | obj->flags |= SEEN; | |
e646de0d | 105 | return add_object(obj, p, path, name); |
9de48752 LT |
106 | } |
107 | ||
e646de0d JH |
108 | static struct object_list **process_tree(struct tree *tree, |
109 | struct object_list **p, | |
110 | struct name_path *path, | |
111 | const char *name) | |
9de48752 LT |
112 | { |
113 | struct object *obj = &tree->object; | |
114 | struct tree_entry_list *entry; | |
e646de0d | 115 | struct name_path me; |
9de48752 | 116 | |
ae563542 | 117 | if (!revs.tree_objects) |
9de48752 LT |
118 | return p; |
119 | if (obj->flags & (UNINTERESTING | SEEN)) | |
120 | return p; | |
121 | if (parse_tree(tree) < 0) | |
122 | die("bad tree object %s", sha1_to_hex(obj->sha1)); | |
123 | obj->flags |= SEEN; | |
e646de0d JH |
124 | p = add_object(obj, p, path, name); |
125 | me.up = path; | |
126 | me.elem = name; | |
127 | me.elem_len = strlen(name); | |
b0d8923e LT |
128 | entry = tree->entries; |
129 | tree->entries = NULL; | |
130 | while (entry) { | |
131 | struct tree_entry_list *next = entry->next; | |
9de48752 | 132 | if (entry->directory) |
e646de0d | 133 | p = process_tree(entry->item.tree, p, &me, entry->name); |
9de48752 | 134 | else |
e646de0d | 135 | p = process_blob(entry->item.blob, p, &me, entry->name); |
b0d8923e LT |
136 | free(entry); |
137 | entry = next; | |
9de48752 LT |
138 | } |
139 | return p; | |
140 | } | |
141 | ||
a4a88b2b | 142 | static void show_commit_list(struct rev_info *revs) |
81f2bb1f | 143 | { |
a4a88b2b | 144 | struct commit *commit; |
36f8d174 | 145 | struct object_list *objects = NULL, **p = &objects, *pending; |
81f2bb1f | 146 | |
a4a88b2b | 147 | while ((commit = get_revision(revs)) != NULL) { |
e646de0d | 148 | p = process_tree(commit->tree, p, NULL, ""); |
765ac8ec | 149 | show_commit(commit); |
81f2bb1f | 150 | } |
a4a88b2b | 151 | for (pending = revs->pending_objects; pending; pending = pending->next) { |
36f8d174 LT |
152 | struct object *obj = pending->item; |
153 | const char *name = pending->name; | |
154 | if (obj->flags & (UNINTERESTING | SEEN)) | |
155 | continue; | |
156 | if (obj->type == tag_type) { | |
157 | obj->flags |= SEEN; | |
e646de0d | 158 | p = add_object(obj, p, NULL, name); |
36f8d174 LT |
159 | continue; |
160 | } | |
161 | if (obj->type == tree_type) { | |
e646de0d | 162 | p = process_tree((struct tree *)obj, p, NULL, name); |
36f8d174 LT |
163 | continue; |
164 | } | |
165 | if (obj->type == blob_type) { | |
e646de0d | 166 | p = process_blob((struct blob *)obj, p, NULL, name); |
36f8d174 LT |
167 | continue; |
168 | } | |
169 | die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name); | |
170 | } | |
9de48752 | 171 | while (objects) { |
50319850 JH |
172 | /* An object with name "foo\n0000000..." can be used to |
173 | * confuse downstream git-pack-objects very badly. | |
c807f771 JH |
174 | */ |
175 | const char *ep = strchr(objects->name, '\n'); | |
176 | if (ep) { | |
177 | printf("%s %.*s\n", sha1_to_hex(objects->item->sha1), | |
178 | (int) (ep - objects->name), | |
179 | objects->name); | |
180 | } | |
181 | else | |
182 | printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name); | |
9de48752 LT |
183 | objects = objects->next; |
184 | } | |
185 | } | |
186 | ||
8b3a1e05 LT |
187 | /* |
188 | * This is a truly stupid algorithm, but it's only | |
189 | * used for bisection, and we just don't care enough. | |
190 | * | |
191 | * We care just barely enough to avoid recursing for | |
192 | * non-merge entries. | |
193 | */ | |
194 | static int count_distance(struct commit_list *entry) | |
195 | { | |
196 | int nr = 0; | |
197 | ||
198 | while (entry) { | |
199 | struct commit *commit = entry->item; | |
200 | struct commit_list *p; | |
201 | ||
202 | if (commit->object.flags & (UNINTERESTING | COUNTED)) | |
203 | break; | |
8efdc326 | 204 | if (!revs.prune_fn || (commit->object.flags & TREECHANGE)) |
b3cfd939 | 205 | nr++; |
8b3a1e05 LT |
206 | commit->object.flags |= COUNTED; |
207 | p = commit->parents; | |
208 | entry = p; | |
209 | if (p) { | |
210 | p = p->next; | |
211 | while (p) { | |
212 | nr += count_distance(p); | |
213 | p = p->next; | |
214 | } | |
215 | } | |
216 | } | |
b3cfd939 | 217 | |
8b3a1e05 LT |
218 | return nr; |
219 | } | |
220 | ||
3d958064 | 221 | static void clear_distance(struct commit_list *list) |
8b3a1e05 LT |
222 | { |
223 | while (list) { | |
224 | struct commit *commit = list->item; | |
225 | commit->object.flags &= ~COUNTED; | |
226 | list = list->next; | |
227 | } | |
228 | } | |
229 | ||
230 | static struct commit_list *find_bisection(struct commit_list *list) | |
231 | { | |
232 | int nr, closest; | |
233 | struct commit_list *p, *best; | |
234 | ||
235 | nr = 0; | |
236 | p = list; | |
237 | while (p) { | |
8efdc326 | 238 | if (!revs.prune_fn || (p->item->object.flags & TREECHANGE)) |
b3cfd939 | 239 | nr++; |
8b3a1e05 LT |
240 | p = p->next; |
241 | } | |
242 | closest = 0; | |
243 | best = list; | |
244 | ||
b3cfd939 LT |
245 | for (p = list; p; p = p->next) { |
246 | int distance; | |
247 | ||
8efdc326 | 248 | if (revs.prune_fn && !(p->item->object.flags & TREECHANGE)) |
b3cfd939 LT |
249 | continue; |
250 | ||
251 | distance = count_distance(p); | |
8b3a1e05 LT |
252 | clear_distance(list); |
253 | if (nr - distance < distance) | |
254 | distance = nr - distance; | |
255 | if (distance > closest) { | |
256 | best = p; | |
257 | closest = distance; | |
258 | } | |
8b3a1e05 LT |
259 | } |
260 | if (best) | |
261 | best->next = NULL; | |
262 | return best; | |
263 | } | |
264 | ||
c6496575 JH |
265 | static void mark_edge_parents_uninteresting(struct commit *commit) |
266 | { | |
267 | struct commit_list *parents; | |
268 | ||
269 | for (parents = commit->parents; parents; parents = parents->next) { | |
270 | struct commit *parent = parents->item; | |
271 | if (!(parent->object.flags & UNINTERESTING)) | |
272 | continue; | |
273 | mark_tree_uninteresting(parent->tree); | |
ae563542 | 274 | if (revs.edge_hint && !(parent->object.flags & SHOWN)) { |
eb38cc68 | 275 | parent->object.flags |= SHOWN; |
c6496575 | 276 | printf("-%s\n", sha1_to_hex(parent->object.sha1)); |
eb38cc68 | 277 | } |
c6496575 JH |
278 | } |
279 | } | |
280 | ||
5bdbaaa4 LT |
281 | static void mark_edges_uninteresting(struct commit_list *list) |
282 | { | |
283 | for ( ; list; list = list->next) { | |
c6496575 | 284 | struct commit *commit = list->item; |
5bdbaaa4 | 285 | |
c6496575 JH |
286 | if (commit->object.flags & UNINTERESTING) { |
287 | mark_tree_uninteresting(commit->tree); | |
288 | continue; | |
5bdbaaa4 | 289 | } |
c6496575 | 290 | mark_edge_parents_uninteresting(commit); |
5bdbaaa4 LT |
291 | } |
292 | } | |
293 | ||
cf484544 | 294 | int main(int argc, const char **argv) |
64745109 | 295 | { |
ae563542 | 296 | struct commit_list *list; |
d9a83684 | 297 | int i; |
64745109 | 298 | |
7594c4b2 JH |
299 | init_revisions(&revs); |
300 | revs.abbrev = 0; | |
301 | revs.commit_format = CMIT_FMT_UNSPECIFIED; | |
a4a88b2b | 302 | argc = setup_revisions(argc, argv, &revs, NULL); |
ae563542 | 303 | |
fcfda02b | 304 | for (i = 1 ; i < argc; i++) { |
cf484544 | 305 | const char *arg = argv[i]; |
fcfda02b | 306 | |
a6f68d47 | 307 | if (!strcmp(arg, "--header")) { |
7594c4b2 | 308 | revs.verbose_header = 1; |
9d97aa64 LT |
309 | continue; |
310 | } | |
dc68c4ff JH |
311 | if (!strcmp(arg, "--timestamp")) { |
312 | show_timestamp = 1; | |
313 | continue; | |
314 | } | |
8b3a1e05 LT |
315 | if (!strcmp(arg, "--bisect")) { |
316 | bisect_list = 1; | |
317 | continue; | |
318 | } | |
ae563542 | 319 | usage(rev_list_usage); |
a6f68d47 | 320 | |
fcfda02b | 321 | } |
7594c4b2 JH |
322 | if (revs.commit_format != CMIT_FMT_UNSPECIFIED) { |
323 | /* The command line has a --pretty */ | |
324 | hdr_termination = '\n'; | |
325 | if (revs.commit_format == CMIT_FMT_ONELINE) | |
91539833 | 326 | header_prefix = ""; |
7594c4b2 | 327 | else |
91539833 | 328 | header_prefix = "commit "; |
7594c4b2 | 329 | } |
db89665f JH |
330 | else if (revs.verbose_header) |
331 | /* Only --header was specified */ | |
332 | revs.commit_format = CMIT_FMT_RAW; | |
fcfda02b | 333 | |
ae563542 | 334 | list = revs.commits; |
ae563542 | 335 | |
8c1f0b44 JH |
336 | if ((!list && |
337 | (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) && | |
338 | !revs.pending_objects)) || | |
339 | revs.diff) | |
7b34c2fa LT |
340 | usage(rev_list_usage); |
341 | ||
7594c4b2 | 342 | save_commit_buffer = revs.verbose_header; |
9181ca2c | 343 | track_object_refs = 0; |
4e1dc640 JH |
344 | if (bisect_list) |
345 | revs.limited = 1; | |
9181ca2c | 346 | |
a4a88b2b LT |
347 | prepare_revision_walk(&revs); |
348 | if (revs.tree_objects) | |
349 | mark_edges_uninteresting(revs.commits); | |
350 | ||
351 | if (bisect_list) | |
352 | revs.commits = find_bisection(revs.commits); | |
7b34c2fa | 353 | |
765ac8ec | 354 | show_commit_list(&revs); |
8906300f | 355 | |
64745109 LT |
356 | return 0; |
357 | } |