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Commit | Line | Data |
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e93fc5d7 | 1 | #include "git-compat-util.h" |
32a8f510 | 2 | #include "environment.h" |
c455c87c | 3 | #include "string-list.h" |
fe5d30b6 | 4 | #include "mailmap.h" |
dabab1d6 | 5 | #include "object-name.h" |
a034e910 | 6 | #include "object-store-ll.h" |
e38da487 | 7 | #include "setup.h" |
7c1c6782 | 8 | |
d551a488 | 9 | const char *git_mailmap_file; |
08610900 | 10 | const char *git_mailmap_blob; |
0925ce4d MSO |
11 | |
12 | struct mailmap_info { | |
13 | char *name; | |
14 | char *email; | |
15 | }; | |
16 | ||
17 | struct mailmap_entry { | |
18 | /* name and email for the simple mail-only case */ | |
19 | char *name; | |
20 | char *email; | |
21 | ||
22 | /* name and email for the complex mail and name matching case */ | |
23 | struct string_list namemap; | |
24 | }; | |
25 | ||
910d07a8 | 26 | static void free_mailmap_info(void *p, const char *s UNUSED) |
0925ce4d MSO |
27 | { |
28 | struct mailmap_info *mi = (struct mailmap_info *)p; | |
0925ce4d MSO |
29 | free(mi->name); |
30 | free(mi->email); | |
ccdd5d1e | 31 | free(mi); |
0925ce4d MSO |
32 | } |
33 | ||
910d07a8 | 34 | static void free_mailmap_entry(void *p, const char *s UNUSED) |
0925ce4d MSO |
35 | { |
36 | struct mailmap_entry *me = (struct mailmap_entry *)p; | |
fbfba7ad | 37 | |
0925ce4d MSO |
38 | free(me->name); |
39 | free(me->email); | |
40 | ||
41 | me->namemap.strdup_strings = 1; | |
42 | string_list_clear_func(&me->namemap, free_mailmap_info); | |
ccdd5d1e | 43 | free(me); |
0925ce4d MSO |
44 | } |
45 | ||
de2f95eb JH |
46 | /* |
47 | * On some systems (e.g. MinGW 4.0), string.h has _only_ inline | |
48 | * definition of strcasecmp and no non-inline implementation is | |
49 | * supplied anywhere, which is, eh, "unusual"; we cannot take an | |
50 | * address of such a function to store it in namemap.cmp. This is | |
51 | * here as a workaround---do not assign strcasecmp directly to | |
52 | * namemap.cmp until we know no systems that matter have such an | |
53 | * "unusual" string.h. | |
54 | */ | |
55 | static int namemap_cmp(const char *a, const char *b) | |
56 | { | |
57 | return strcasecmp(a, b); | |
58 | } | |
59 | ||
0925ce4d | 60 | static void add_mapping(struct string_list *map, |
bd237945 JH |
61 | char *new_name, char *new_email, |
62 | char *old_name, char *old_email) | |
0925ce4d MSO |
63 | { |
64 | struct mailmap_entry *me; | |
63226218 | 65 | struct string_list_item *item; |
bf637803 | 66 | |
afe8a907 | 67 | if (!old_email) { |
0925ce4d MSO |
68 | old_email = new_email; |
69 | new_email = NULL; | |
70 | } | |
71 | ||
63226218 SB |
72 | item = string_list_insert(map, old_email); |
73 | if (item->util) { | |
74 | me = (struct mailmap_entry *)item->util; | |
0925ce4d | 75 | } else { |
ca56dadb | 76 | CALLOC_ARRAY(me, 1); |
97e751be | 77 | me->namemap.strdup_strings = 1; |
de2f95eb | 78 | me->namemap.cmp = namemap_cmp; |
97e751be | 79 | item->util = me; |
0925ce4d | 80 | } |
0925ce4d | 81 | |
afe8a907 | 82 | if (!old_name) { |
0925ce4d | 83 | /* Replace current name and new email for simple entry */ |
d8d2eb7d JM |
84 | if (new_name) { |
85 | free(me->name); | |
0925ce4d | 86 | me->name = xstrdup(new_name); |
d8d2eb7d JM |
87 | } |
88 | if (new_email) { | |
89 | free(me->email); | |
0925ce4d | 90 | me->email = xstrdup(new_email); |
d8d2eb7d | 91 | } |
0925ce4d | 92 | } else { |
74b531f6 | 93 | struct mailmap_info *mi = xcalloc(1, sizeof(struct mailmap_info)); |
13092a91 JH |
94 | mi->name = xstrdup_or_null(new_name); |
95 | mi->email = xstrdup_or_null(new_email); | |
78a395d3 | 96 | string_list_insert(&me->namemap, old_name)->util = mi; |
0925ce4d | 97 | } |
0925ce4d MSO |
98 | } |
99 | ||
5288dd58 | 100 | static char *parse_name_and_email(char *buffer, char **name, |
bd237945 | 101 | char **email, int allow_empty_email) |
0925ce4d MSO |
102 | { |
103 | char *left, *right, *nstart, *nend; | |
2af202be | 104 | *name = *email = NULL; |
0925ce4d | 105 | |
afe8a907 | 106 | if (!(left = strchr(buffer, '<'))) |
0925ce4d | 107 | return NULL; |
afe8a907 | 108 | if (!(right = strchr(left + 1, '>'))) |
0925ce4d | 109 | return NULL; |
5288dd58 | 110 | if (!allow_empty_email && (left+1 == right)) |
0925ce4d MSO |
111 | return NULL; |
112 | ||
113 | /* remove whitespace from beginning and end of name */ | |
114 | nstart = buffer; | |
115 | while (isspace(*nstart) && nstart < left) | |
116 | ++nstart; | |
117 | nend = left-1; | |
3174bc5c | 118 | while (nend > nstart && isspace(*nend)) |
0925ce4d MSO |
119 | --nend; |
120 | ||
8c381151 | 121 | *name = (nstart <= nend ? nstart : NULL); |
0925ce4d MSO |
122 | *email = left+1; |
123 | *(nend+1) = '\0'; | |
124 | *right++ = '\0'; | |
125 | ||
126 | return (*right == '\0' ? NULL : right); | |
127 | } | |
128 | ||
4e168333 | 129 | static void read_mailmap_line(struct string_list *map, char *buffer) |
7c8ce308 JK |
130 | { |
131 | char *name1 = NULL, *email1 = NULL, *name2 = NULL, *email2 = NULL; | |
7c8ce308 | 132 | |
4e168333 | 133 | if (buffer[0] == '#') |
7c8ce308 | 134 | return; |
4e168333 | 135 | |
afe8a907 | 136 | if ((name2 = parse_name_and_email(buffer, &name1, &email1, 0))) |
7c8ce308 JK |
137 | parse_name_and_email(name2, &name2, &email2, 1); |
138 | ||
139 | if (email1) | |
140 | add_mapping(map, name1, email1, name2, email2); | |
141 | } | |
142 | ||
adcd9f54 JK |
143 | /* Flags for read_mailmap_file() */ |
144 | #define MAILMAP_NOFOLLOW (1<<0) | |
145 | ||
146 | static int read_mailmap_file(struct string_list *map, const char *filename, | |
147 | unsigned flags) | |
7c1c6782 JH |
148 | { |
149 | char buffer[1024]; | |
938a60d6 | 150 | FILE *f; |
adcd9f54 | 151 | int fd; |
938a60d6 JK |
152 | |
153 | if (!filename) | |
154 | return 0; | |
155 | ||
adcd9f54 JK |
156 | if (flags & MAILMAP_NOFOLLOW) |
157 | fd = open_nofollow(filename, O_RDONLY); | |
158 | else | |
159 | fd = open(filename, O_RDONLY); | |
160 | ||
161 | if (fd < 0) { | |
938a60d6 JK |
162 | if (errno == ENOENT) |
163 | return 0; | |
60901e4c | 164 | return error_errno("unable to open mailmap at %s", filename); |
938a60d6 | 165 | } |
adcd9f54 | 166 | f = xfdopen(fd, "r"); |
7c1c6782 | 167 | |
7c8ce308 | 168 | while (fgets(buffer, sizeof(buffer), f) != NULL) |
4e168333 | 169 | read_mailmap_line(map, buffer); |
7c1c6782 JH |
170 | fclose(f); |
171 | return 0; | |
172 | } | |
173 | ||
4e168333 | 174 | static void read_mailmap_string(struct string_list *map, char *buf) |
08610900 | 175 | { |
f972a165 JK |
176 | while (*buf) { |
177 | char *end = strchrnul(buf, '\n'); | |
08610900 | 178 | |
f972a165 JK |
179 | if (*end) |
180 | *end++ = '\0'; | |
08610900 | 181 | |
4e168333 | 182 | read_mailmap_line(map, buf); |
f972a165 | 183 | buf = end; |
08610900 JK |
184 | } |
185 | } | |
186 | ||
4e168333 | 187 | static int read_mailmap_blob(struct string_list *map, const char *name) |
08610900 | 188 | { |
15be4a5d | 189 | struct object_id oid; |
08610900 JK |
190 | char *buf; |
191 | unsigned long size; | |
192 | enum object_type type; | |
193 | ||
194 | if (!name) | |
938a60d6 | 195 | return 0; |
d850b7a5 | 196 | if (repo_get_oid(the_repository, name, &oid) < 0) |
938a60d6 | 197 | return 0; |
08610900 | 198 | |
bc726bd0 | 199 | buf = repo_read_object_file(the_repository, &oid, &type, &size); |
08610900 | 200 | if (!buf) |
938a60d6 | 201 | return error("unable to read mailmap object at %s", name); |
08610900 | 202 | if (type != OBJ_BLOB) |
938a60d6 | 203 | return error("mailmap is not a blob: %s", name); |
08610900 | 204 | |
4e168333 | 205 | read_mailmap_string(map, buf); |
08610900 JK |
206 | |
207 | free(buf); | |
208 | return 0; | |
209 | } | |
210 | ||
4e168333 | 211 | int read_mailmap(struct string_list *map) |
d551a488 | 212 | { |
938a60d6 | 213 | int err = 0; |
8c473cec | 214 | |
0925ce4d | 215 | map->strdup_strings = 1; |
de2f95eb | 216 | map->cmp = namemap_cmp; |
8c473cec JK |
217 | |
218 | if (!git_mailmap_blob && is_bare_repository()) | |
219 | git_mailmap_blob = "HEAD:.mailmap"; | |
220 | ||
a38cb987 | 221 | if (!startup_info->have_repository || !is_bare_repository()) |
204333b0 JH |
222 | err |= read_mailmap_file(map, ".mailmap", |
223 | startup_info->have_repository ? | |
224 | MAILMAP_NOFOLLOW : 0); | |
5735dc5a | 225 | if (startup_info->have_repository) |
4e168333 | 226 | err |= read_mailmap_blob(map, git_mailmap_blob); |
adcd9f54 | 227 | err |= read_mailmap_file(map, git_mailmap_file, 0); |
938a60d6 | 228 | return err; |
d551a488 MSO |
229 | } |
230 | ||
0925ce4d MSO |
231 | void clear_mailmap(struct string_list *map) |
232 | { | |
0925ce4d MSO |
233 | map->strdup_strings = 1; |
234 | string_list_clear_func(map, free_mailmap_entry); | |
0925ce4d MSO |
235 | } |
236 | ||
388c7f8a JH |
237 | /* |
238 | * Look for an entry in map that match string[0:len]; string[len] | |
239 | * does not have to be NUL (but it could be). | |
240 | */ | |
241 | static struct string_list_item *lookup_prefix(struct string_list *map, | |
242 | const char *string, size_t len) | |
243 | { | |
244 | int i = string_list_find_insert_index(map, string, 1); | |
245 | if (i < 0) { | |
246 | /* exact match */ | |
247 | i = -1 - i; | |
248 | if (!string[len]) | |
249 | return &map->items[i]; | |
250 | /* | |
251 | * that map entry matches exactly to the string, including | |
252 | * the cruft at the end beyond "len". That is not a match | |
253 | * with string[0:len] that we are looking for. | |
254 | */ | |
255 | } else if (!string[len]) { | |
256 | /* | |
257 | * asked with the whole string, and got nothing. No | |
258 | * matching entry can exist in the map. | |
259 | */ | |
260 | return NULL; | |
261 | } | |
262 | ||
263 | /* | |
264 | * i is at the exact match to an overlong key, or location the | |
265 | * overlong key would be inserted, which must come after the | |
266 | * real location of the key if one exists. | |
267 | */ | |
268 | while (0 <= --i && i < map->nr) { | |
269 | int cmp = strncasecmp(map->items[i].string, string, len); | |
270 | if (cmp < 0) | |
271 | /* | |
272 | * "i" points at a key definitely below the prefix; | |
273 | * the map does not have string[0:len] in it. | |
274 | */ | |
275 | break; | |
276 | else if (!cmp && !map->items[i].string[len]) | |
277 | /* found it */ | |
278 | return &map->items[i]; | |
279 | /* | |
280 | * otherwise, the string at "i" may be string[0:len] | |
281 | * followed by a string that sorts later than string[len:]; | |
282 | * keep trying. | |
283 | */ | |
284 | } | |
285 | return NULL; | |
286 | } | |
287 | ||
0925ce4d | 288 | int map_user(struct string_list *map, |
bd237945 JH |
289 | const char **email, size_t *emaillen, |
290 | const char **name, size_t *namelen) | |
7c1c6782 | 291 | { |
c455c87c | 292 | struct string_list_item *item; |
0925ce4d | 293 | struct mailmap_entry *me; |
388c7f8a | 294 | |
ea02ffa3 | 295 | item = lookup_prefix(map, *email, *emaillen); |
afe8a907 | 296 | if (item) { |
0925ce4d MSO |
297 | me = (struct mailmap_entry *)item->util; |
298 | if (me->namemap.nr) { | |
bd237945 JH |
299 | /* |
300 | * The item has multiple items, so we'll look up on | |
301 | * name too. If the name is not found, we choose the | |
302 | * simple entry. | |
303 | */ | |
ea02ffa3 AP |
304 | struct string_list_item *subitem; |
305 | subitem = lookup_prefix(&me->namemap, *name, *namelen); | |
0925ce4d MSO |
306 | if (subitem) |
307 | item = subitem; | |
308 | } | |
309 | } | |
afe8a907 | 310 | if (item) { |
0925ce4d | 311 | struct mailmap_info *mi = (struct mailmap_info *)item->util; |
910d07a8 | 312 | if (mi->name == NULL && mi->email == NULL) |
0925ce4d | 313 | return 0; |
ea02ffa3 AP |
314 | if (mi->email) { |
315 | *email = mi->email; | |
316 | *emaillen = strlen(*email); | |
317 | } | |
318 | if (mi->name) { | |
319 | *name = mi->name; | |
320 | *namelen = strlen(*name); | |
321 | } | |
7c1c6782 JH |
322 | return 1; |
323 | } | |
324 | return 0; | |
325 | } |