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Commit | Line | Data |
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d6b64ed0 | 1 | #include "builtin.h" |
bd321bcc JS |
2 | #include "cache.h" |
3 | #include "commit.h" | |
4 | #include "tag.h" | |
5 | #include "refs.h" | |
6 | ||
c075aea5 JH |
7 | #define CUTOFF_DATE_SLOP 86400 /* one day */ |
8 | ||
bd321bcc | 9 | static const char name_rev_usage[] = |
2afc29aa | 10 | "git-name-rev [--tags | --refs=<pattern>] ( --all | --stdin | committish [committish...] )\n"; |
bd321bcc JS |
11 | |
12 | typedef struct rev_name { | |
13 | const char *tip_name; | |
14 | int merge_traversals; | |
15 | int generation; | |
16 | } rev_name; | |
17 | ||
18 | static long cutoff = LONG_MAX; | |
19 | ||
20 | static void name_rev(struct commit *commit, | |
21 | const char *tip_name, int merge_traversals, int generation, | |
22 | int deref) | |
23 | { | |
d3ff6f55 | 24 | struct rev_name *name = (struct rev_name *)commit->util; |
bd321bcc | 25 | struct commit_list *parents; |
f2e6f1c9 | 26 | int parent_number = 1; |
bd321bcc JS |
27 | |
28 | if (!commit->object.parsed) | |
29 | parse_commit(commit); | |
30 | ||
31 | if (commit->date < cutoff) | |
32 | return; | |
33 | ||
34 | if (deref) { | |
35 | char *new_name = xmalloc(strlen(tip_name)+3); | |
36 | strcpy(new_name, tip_name); | |
37 | strcat(new_name, "^0"); | |
38 | tip_name = new_name; | |
39 | ||
40 | if (generation) | |
41 | die("generation: %d, but deref?", generation); | |
42 | } | |
43 | ||
44 | if (name == NULL) { | |
45 | name = xmalloc(sizeof(rev_name)); | |
d3ff6f55 | 46 | commit->util = name; |
bd321bcc JS |
47 | goto copy_data; |
48 | } else if (name->merge_traversals > merge_traversals || | |
49 | (name->merge_traversals == merge_traversals && | |
50 | name->generation > generation)) { | |
51 | copy_data: | |
52 | name->tip_name = tip_name; | |
53 | name->merge_traversals = merge_traversals; | |
54 | name->generation = generation; | |
55 | } else | |
56 | return; | |
57 | ||
58 | for (parents = commit->parents; | |
59 | parents; | |
60 | parents = parents->next, parent_number++) { | |
f2e6f1c9 | 61 | if (parent_number > 1) { |
59d3f541 | 62 | int len = strlen(tip_name); |
cf606e3d AW |
63 | char *new_name = xmalloc(len + |
64 | 1 + decimal_length(generation) + /* ~<n> */ | |
65 | 1 + 2 + /* ^NN */ | |
66 | 1); | |
bd321bcc | 67 | |
59d3f541 JS |
68 | if (len > 2 && !strcmp(tip_name + len - 2, "^0")) |
69 | len -= 2; | |
bd321bcc | 70 | if (generation > 0) |
59d3f541 | 71 | sprintf(new_name, "%.*s~%d^%d", len, tip_name, |
bd321bcc JS |
72 | generation, parent_number); |
73 | else | |
59d3f541 JS |
74 | sprintf(new_name, "%.*s^%d", len, tip_name, |
75 | parent_number); | |
bd321bcc JS |
76 | |
77 | name_rev(parents->item, new_name, | |
78 | merge_traversals + 1 , 0, 0); | |
79 | } else { | |
80 | name_rev(parents->item, tip_name, merge_traversals, | |
81 | generation + 1, 0); | |
82 | } | |
83 | } | |
84 | } | |
85 | ||
2afc29aa JS |
86 | struct name_ref_data { |
87 | int tags_only; | |
23615708 | 88 | int name_only; |
2afc29aa JS |
89 | const char *ref_filter; |
90 | }; | |
91 | ||
8da19775 | 92 | static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data) |
bd321bcc JS |
93 | { |
94 | struct object *o = parse_object(sha1); | |
2afc29aa | 95 | struct name_ref_data *data = cb_data; |
bd321bcc JS |
96 | int deref = 0; |
97 | ||
cc44c765 | 98 | if (data->tags_only && prefixcmp(path, "refs/tags/")) |
2afc29aa JS |
99 | return 0; |
100 | ||
101 | if (data->ref_filter && fnmatch(data->ref_filter, path, 0)) | |
bd321bcc JS |
102 | return 0; |
103 | ||
1974632c | 104 | while (o && o->type == OBJ_TAG) { |
bd321bcc JS |
105 | struct tag *t = (struct tag *) o; |
106 | if (!t->tagged) | |
107 | break; /* broken repository */ | |
108 | o = parse_object(t->tagged->sha1); | |
109 | deref = 1; | |
110 | } | |
1974632c | 111 | if (o && o->type == OBJ_COMMIT) { |
bd321bcc | 112 | struct commit *commit = (struct commit *)o; |
bd321bcc | 113 | |
cc44c765 | 114 | if (!prefixcmp(path, "refs/heads/")) |
2c817df2 | 115 | path = path + 11; |
23615708 SP |
116 | else if (data->tags_only |
117 | && data->name_only | |
118 | && !prefixcmp(path, "refs/tags/")) | |
119 | path = path + 10; | |
cc44c765 | 120 | else if (!prefixcmp(path, "refs/")) |
2c817df2 | 121 | path = path + 5; |
bd321bcc | 122 | |
9befac47 | 123 | name_rev(commit, xstrdup(path), 0, 0, deref); |
bd321bcc JS |
124 | } |
125 | return 0; | |
126 | } | |
127 | ||
128 | /* returns a static buffer */ | |
129 | static const char* get_rev_name(struct object *o) | |
130 | { | |
131 | static char buffer[1024]; | |
d3ff6f55 LT |
132 | struct rev_name *n; |
133 | struct commit *c; | |
134 | ||
1974632c | 135 | if (o->type != OBJ_COMMIT) |
d3ff6f55 LT |
136 | return "undefined"; |
137 | c = (struct commit *) o; | |
138 | n = c->util; | |
bd321bcc JS |
139 | if (!n) |
140 | return "undefined"; | |
141 | ||
142 | if (!n->generation) | |
143 | return n->tip_name; | |
59d3f541 JS |
144 | else { |
145 | int len = strlen(n->tip_name); | |
146 | if (len > 2 && !strcmp(n->tip_name + len - 2, "^0")) | |
147 | len -= 2; | |
148 | snprintf(buffer, sizeof(buffer), "%.*s~%d", len, n->tip_name, | |
149 | n->generation); | |
150 | ||
151 | return buffer; | |
152 | } | |
bd321bcc | 153 | } |
1f1e895f | 154 | |
d6b64ed0 | 155 | int cmd_name_rev(int argc, const char **argv, const char *prefix) |
bd321bcc | 156 | { |
1f1e895f | 157 | struct object_array revs = { 0, 0, NULL }; |
bd321bcc | 158 | int as_is = 0, all = 0, transform_stdin = 0; |
23615708 | 159 | struct name_ref_data data = { 0, 0, NULL }; |
bd321bcc | 160 | |
84a9b58c | 161 | git_config(git_default_config); |
bd321bcc JS |
162 | |
163 | if (argc < 2) | |
164 | usage(name_rev_usage); | |
165 | ||
166 | for (--argc, ++argv; argc; --argc, ++argv) { | |
167 | unsigned char sha1[20]; | |
168 | struct object *o; | |
169 | struct commit *commit; | |
170 | ||
171 | if (!as_is && (*argv)[0] == '-') { | |
172 | if (!strcmp(*argv, "--")) { | |
173 | as_is = 1; | |
174 | continue; | |
23615708 SP |
175 | } else if (!strcmp(*argv, "--name-only")) { |
176 | data.name_only = 1; | |
177 | continue; | |
bd321bcc | 178 | } else if (!strcmp(*argv, "--tags")) { |
2afc29aa JS |
179 | data.tags_only = 1; |
180 | continue; | |
cc44c765 | 181 | } else if (!prefixcmp(*argv, "--refs=")) { |
2afc29aa | 182 | data.ref_filter = *argv + 7; |
bd321bcc JS |
183 | continue; |
184 | } else if (!strcmp(*argv, "--all")) { | |
185 | if (argc > 1) | |
186 | die("Specify either a list, or --all, not both!"); | |
187 | all = 1; | |
188 | cutoff = 0; | |
189 | continue; | |
190 | } else if (!strcmp(*argv, "--stdin")) { | |
191 | if (argc > 1) | |
192 | die("Specify either a list, or --stdin, not both!"); | |
193 | transform_stdin = 1; | |
194 | cutoff = 0; | |
195 | continue; | |
196 | } | |
197 | usage(name_rev_usage); | |
198 | } | |
199 | ||
200 | if (get_sha1(*argv, sha1)) { | |
201 | fprintf(stderr, "Could not get sha1 for %s. Skipping.\n", | |
202 | *argv); | |
203 | continue; | |
204 | } | |
205 | ||
9534f40b | 206 | o = deref_tag(parse_object(sha1), *argv, 0); |
1974632c | 207 | if (!o || o->type != OBJ_COMMIT) { |
bd321bcc JS |
208 | fprintf(stderr, "Could not get commit for %s. Skipping.\n", |
209 | *argv); | |
210 | continue; | |
211 | } | |
212 | ||
213 | commit = (struct commit *)o; | |
214 | ||
215 | if (cutoff > commit->date) | |
216 | cutoff = commit->date; | |
217 | ||
1f1e895f | 218 | add_object_array((struct object *)commit, *argv, &revs); |
bd321bcc JS |
219 | } |
220 | ||
c075aea5 JH |
221 | if (cutoff) |
222 | cutoff = cutoff - CUTOFF_DATE_SLOP; | |
2afc29aa | 223 | for_each_ref(name_ref, &data); |
bd321bcc JS |
224 | |
225 | if (transform_stdin) { | |
226 | char buffer[2048]; | |
227 | char *p, *p_start; | |
228 | ||
229 | while (!feof(stdin)) { | |
230 | int forty = 0; | |
231 | p = fgets(buffer, sizeof(buffer), stdin); | |
232 | if (!p) | |
233 | break; | |
234 | ||
235 | for (p_start = p; *p; p++) { | |
236 | #define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f')) | |
237 | if (!ishex(*p)) | |
238 | forty = 0; | |
239 | else if (++forty == 40 && | |
240 | !ishex(*(p+1))) { | |
241 | unsigned char sha1[40]; | |
242 | const char *name = "undefined"; | |
243 | char c = *(p+1); | |
244 | ||
245 | forty = 0; | |
246 | ||
247 | *(p+1) = 0; | |
248 | if (!get_sha1(p - 39, sha1)) { | |
249 | struct object *o = | |
250 | lookup_object(sha1); | |
251 | if (o) | |
252 | name = get_rev_name(o); | |
253 | } | |
254 | *(p+1) = c; | |
255 | ||
256 | if (!strcmp(name, "undefined")) | |
257 | continue; | |
258 | ||
2d76d0d1 JH |
259 | fwrite(p_start, p - p_start + 1, 1, |
260 | stdout); | |
261 | printf(" (%s)", name); | |
bd321bcc JS |
262 | p_start = p + 1; |
263 | } | |
264 | } | |
265 | ||
266 | /* flush */ | |
267 | if (p_start != p) | |
268 | fwrite(p_start, p - p_start, 1, stdout); | |
269 | } | |
270 | } else if (all) { | |
fc046a75 | 271 | int i, max; |
bd321bcc | 272 | |
fc046a75 LT |
273 | max = get_max_object_index(); |
274 | for (i = 0; i < max; i++) { | |
275 | struct object * obj = get_indexed_object(i); | |
276 | if (!obj) | |
277 | continue; | |
23615708 SP |
278 | if (!data.name_only) |
279 | printf("%s ", sha1_to_hex(obj->sha1)); | |
280 | printf("%s\n", get_rev_name(obj)); | |
fc046a75 | 281 | } |
1f1e895f LT |
282 | } else { |
283 | int i; | |
23615708 SP |
284 | for (i = 0; i < revs.nr; i++) { |
285 | if (!data.name_only) | |
286 | printf("%s ", revs.objects[i].name); | |
287 | printf("%s\n", get_rev_name(revs.objects[i].item)); | |
288 | } | |
1f1e895f | 289 | } |
bd321bcc JS |
290 | |
291 | return 0; | |
292 | } |