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Commit | Line | Data |
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7c1c6782 | 1 | #include "cache.h" |
c455c87c | 2 | #include "string-list.h" |
fe5d30b6 | 3 | #include "mailmap.h" |
7c1c6782 | 4 | |
0925ce4d MSO |
5 | #define DEBUG_MAILMAP 0 |
6 | #if DEBUG_MAILMAP | |
7 | #define debug_mm(...) fprintf(stderr, __VA_ARGS__) | |
8 | #else | |
9 | static inline void debug_mm(const char *format, ...) {} | |
10 | #endif | |
11 | ||
d551a488 | 12 | const char *git_mailmap_file; |
0925ce4d MSO |
13 | |
14 | struct mailmap_info { | |
15 | char *name; | |
16 | char *email; | |
17 | }; | |
18 | ||
19 | struct mailmap_entry { | |
20 | /* name and email for the simple mail-only case */ | |
21 | char *name; | |
22 | char *email; | |
23 | ||
24 | /* name and email for the complex mail and name matching case */ | |
25 | struct string_list namemap; | |
26 | }; | |
27 | ||
28 | static void free_mailmap_info(void *p, const char *s) | |
29 | { | |
30 | struct mailmap_info *mi = (struct mailmap_info *)p; | |
31 | debug_mm("mailmap: -- complex: '%s' -> '%s' <%s>\n", s, mi->name, mi->email); | |
32 | free(mi->name); | |
33 | free(mi->email); | |
34 | } | |
35 | ||
36 | static void free_mailmap_entry(void *p, const char *s) | |
37 | { | |
38 | struct mailmap_entry *me = (struct mailmap_entry *)p; | |
39 | debug_mm("mailmap: removing entries for <%s>, with %d sub-entries\n", s, me->namemap.nr); | |
40 | debug_mm("mailmap: - simple: '%s' <%s>\n", me->name, me->email); | |
41 | free(me->name); | |
42 | free(me->email); | |
43 | ||
44 | me->namemap.strdup_strings = 1; | |
45 | string_list_clear_func(&me->namemap, free_mailmap_info); | |
46 | } | |
47 | ||
48 | static void add_mapping(struct string_list *map, | |
49 | char *new_name, char *new_email, char *old_name, char *old_email) | |
50 | { | |
51 | struct mailmap_entry *me; | |
52 | int index; | |
bf637803 JS |
53 | char *p; |
54 | ||
55 | if (old_email) | |
56 | for (p = old_email; *p; p++) | |
57 | *p = tolower(*p); | |
58 | if (new_email) | |
59 | for (p = new_email; *p; p++) | |
60 | *p = tolower(*p); | |
61 | ||
0925ce4d MSO |
62 | if (old_email == NULL) { |
63 | old_email = new_email; | |
64 | new_email = NULL; | |
65 | } | |
66 | ||
67 | if ((index = string_list_find_insert_index(map, old_email, 1)) < 0) { | |
68 | /* mailmap entry exists, invert index value */ | |
69 | index = -1 - index; | |
70 | } else { | |
71 | /* create mailmap entry */ | |
aadceea6 | 72 | struct string_list_item *item = string_list_insert_at_index(map, index, old_email); |
74b531f6 | 73 | item->util = xcalloc(1, sizeof(struct mailmap_entry)); |
0925ce4d MSO |
74 | ((struct mailmap_entry *)item->util)->namemap.strdup_strings = 1; |
75 | } | |
76 | me = (struct mailmap_entry *)map->items[index].util; | |
77 | ||
78 | if (old_name == NULL) { | |
79 | debug_mm("mailmap: adding (simple) entry for %s at index %d\n", old_email, index); | |
80 | /* Replace current name and new email for simple entry */ | |
d8d2eb7d JM |
81 | if (new_name) { |
82 | free(me->name); | |
0925ce4d | 83 | me->name = xstrdup(new_name); |
d8d2eb7d JM |
84 | } |
85 | if (new_email) { | |
86 | free(me->email); | |
0925ce4d | 87 | me->email = xstrdup(new_email); |
d8d2eb7d | 88 | } |
0925ce4d | 89 | } else { |
74b531f6 | 90 | struct mailmap_info *mi = xcalloc(1, sizeof(struct mailmap_info)); |
0925ce4d MSO |
91 | debug_mm("mailmap: adding (complex) entry for %s at index %d\n", old_email, index); |
92 | if (new_name) | |
93 | mi->name = xstrdup(new_name); | |
94 | if (new_email) | |
95 | mi->email = xstrdup(new_email); | |
78a395d3 | 96 | string_list_insert(&me->namemap, old_name)->util = mi; |
0925ce4d MSO |
97 | } |
98 | ||
99 | debug_mm("mailmap: '%s' <%s> -> '%s' <%s>\n", | |
100 | old_name, old_email, new_name, new_email); | |
101 | } | |
102 | ||
5288dd58 BS |
103 | static char *parse_name_and_email(char *buffer, char **name, |
104 | char **email, int allow_empty_email) | |
0925ce4d MSO |
105 | { |
106 | char *left, *right, *nstart, *nend; | |
2af202be | 107 | *name = *email = NULL; |
0925ce4d MSO |
108 | |
109 | if ((left = strchr(buffer, '<')) == NULL) | |
110 | return NULL; | |
111 | if ((right = strchr(left+1, '>')) == NULL) | |
112 | return NULL; | |
5288dd58 | 113 | if (!allow_empty_email && (left+1 == right)) |
0925ce4d MSO |
114 | return NULL; |
115 | ||
116 | /* remove whitespace from beginning and end of name */ | |
117 | nstart = buffer; | |
118 | while (isspace(*nstart) && nstart < left) | |
119 | ++nstart; | |
120 | nend = left-1; | |
3174bc5c | 121 | while (nend > nstart && isspace(*nend)) |
0925ce4d MSO |
122 | --nend; |
123 | ||
124 | *name = (nstart < nend ? nstart : NULL); | |
125 | *email = left+1; | |
126 | *(nend+1) = '\0'; | |
127 | *right++ = '\0'; | |
128 | ||
129 | return (*right == '\0' ? NULL : right); | |
130 | } | |
131 | ||
d551a488 | 132 | static int read_single_mailmap(struct string_list *map, const char *filename, char **repo_abbrev) |
7c1c6782 JH |
133 | { |
134 | char buffer[1024]; | |
d551a488 | 135 | FILE *f = (filename == NULL ? NULL : fopen(filename, "r")); |
7c1c6782 JH |
136 | |
137 | if (f == NULL) | |
138 | return 1; | |
139 | while (fgets(buffer, sizeof(buffer), f) != NULL) { | |
2af202be | 140 | char *name1 = NULL, *email1 = NULL, *name2 = NULL, *email2 = NULL; |
7c1c6782 JH |
141 | if (buffer[0] == '#') { |
142 | static const char abbrev[] = "# repo-abbrev:"; | |
143 | int abblen = sizeof(abbrev) - 1; | |
144 | int len = strlen(buffer); | |
145 | ||
8503ee43 AR |
146 | if (!repo_abbrev) |
147 | continue; | |
148 | ||
7c1c6782 JH |
149 | if (len && buffer[len - 1] == '\n') |
150 | buffer[--len] = 0; | |
151 | if (!strncmp(buffer, abbrev, abblen)) { | |
152 | char *cp; | |
153 | ||
154 | if (repo_abbrev) | |
155 | free(*repo_abbrev); | |
156 | *repo_abbrev = xmalloc(len); | |
157 | ||
158 | for (cp = buffer + abblen; isspace(*cp); cp++) | |
159 | ; /* nothing */ | |
160 | strcpy(*repo_abbrev, cp); | |
161 | } | |
162 | continue; | |
163 | } | |
5288dd58 BS |
164 | if ((name2 = parse_name_and_email(buffer, &name1, &email1, 0)) != NULL) |
165 | parse_name_and_email(name2, &name2, &email2, 1); | |
0925ce4d MSO |
166 | |
167 | if (email1) | |
168 | add_mapping(map, name1, email1, name2, email2); | |
7c1c6782 JH |
169 | } |
170 | fclose(f); | |
171 | return 0; | |
172 | } | |
173 | ||
d551a488 MSO |
174 | int read_mailmap(struct string_list *map, char **repo_abbrev) |
175 | { | |
0925ce4d | 176 | map->strdup_strings = 1; |
388c7f8a | 177 | map->cmp = strcasecmp; |
d551a488 MSO |
178 | /* each failure returns 1, so >1 means both calls failed */ |
179 | return read_single_mailmap(map, ".mailmap", repo_abbrev) + | |
180 | read_single_mailmap(map, git_mailmap_file, repo_abbrev) > 1; | |
181 | } | |
182 | ||
0925ce4d MSO |
183 | void clear_mailmap(struct string_list *map) |
184 | { | |
185 | debug_mm("mailmap: clearing %d entries...\n", map->nr); | |
186 | map->strdup_strings = 1; | |
187 | string_list_clear_func(map, free_mailmap_entry); | |
188 | debug_mm("mailmap: cleared\n"); | |
189 | } | |
190 | ||
388c7f8a JH |
191 | /* |
192 | * Look for an entry in map that match string[0:len]; string[len] | |
193 | * does not have to be NUL (but it could be). | |
194 | */ | |
195 | static struct string_list_item *lookup_prefix(struct string_list *map, | |
196 | const char *string, size_t len) | |
197 | { | |
198 | int i = string_list_find_insert_index(map, string, 1); | |
199 | if (i < 0) { | |
200 | /* exact match */ | |
201 | i = -1 - i; | |
202 | if (!string[len]) | |
203 | return &map->items[i]; | |
204 | /* | |
205 | * that map entry matches exactly to the string, including | |
206 | * the cruft at the end beyond "len". That is not a match | |
207 | * with string[0:len] that we are looking for. | |
208 | */ | |
209 | } else if (!string[len]) { | |
210 | /* | |
211 | * asked with the whole string, and got nothing. No | |
212 | * matching entry can exist in the map. | |
213 | */ | |
214 | return NULL; | |
215 | } | |
216 | ||
217 | /* | |
218 | * i is at the exact match to an overlong key, or location the | |
219 | * overlong key would be inserted, which must come after the | |
220 | * real location of the key if one exists. | |
221 | */ | |
222 | while (0 <= --i && i < map->nr) { | |
223 | int cmp = strncasecmp(map->items[i].string, string, len); | |
224 | if (cmp < 0) | |
225 | /* | |
226 | * "i" points at a key definitely below the prefix; | |
227 | * the map does not have string[0:len] in it. | |
228 | */ | |
229 | break; | |
230 | else if (!cmp && !map->items[i].string[len]) | |
231 | /* found it */ | |
232 | return &map->items[i]; | |
233 | /* | |
234 | * otherwise, the string at "i" may be string[0:len] | |
235 | * followed by a string that sorts later than string[len:]; | |
236 | * keep trying. | |
237 | */ | |
238 | } | |
239 | return NULL; | |
240 | } | |
241 | ||
0925ce4d MSO |
242 | int map_user(struct string_list *map, |
243 | char *email, int maxlen_email, char *name, int maxlen_name) | |
7c1c6782 | 244 | { |
f026358e | 245 | char *end_of_email; |
c455c87c | 246 | struct string_list_item *item; |
0925ce4d | 247 | struct mailmap_entry *me; |
388c7f8a | 248 | size_t maillen; |
7c1c6782 | 249 | |
0925ce4d | 250 | /* figure out space requirement for email */ |
f026358e JH |
251 | end_of_email = strchr(email, '>'); |
252 | if (!end_of_email) { | |
0925ce4d | 253 | /* email passed in might not be wrapped in <>, but end with a \0 */ |
f026358e JH |
254 | end_of_email = memchr(email, '\0', maxlen_email); |
255 | if (!end_of_email) | |
0925ce4d MSO |
256 | return 0; |
257 | } | |
388c7f8a JH |
258 | |
259 | maillen = end_of_email - email; | |
260 | ||
261 | debug_mm("map_user: map '%s' <%.*s>\n", name, maillen, email); | |
262 | ||
263 | item = lookup_prefix(map, email, maillen); | |
0925ce4d MSO |
264 | if (item != NULL) { |
265 | me = (struct mailmap_entry *)item->util; | |
266 | if (me->namemap.nr) { | |
267 | /* The item has multiple items, so we'll look up on name too */ | |
268 | /* If the name is not found, we choose the simple entry */ | |
e8c8b713 | 269 | struct string_list_item *subitem = string_list_lookup(&me->namemap, name); |
0925ce4d MSO |
270 | if (subitem) |
271 | item = subitem; | |
272 | } | |
273 | } | |
7c1c6782 | 274 | if (item != NULL) { |
0925ce4d MSO |
275 | struct mailmap_info *mi = (struct mailmap_info *)item->util; |
276 | if (mi->name == NULL && (mi->email == NULL || maxlen_email == 0)) { | |
277 | debug_mm("map_user: -- (no simple mapping)\n"); | |
278 | return 0; | |
279 | } | |
280 | if (maxlen_email && mi->email) | |
281 | strlcpy(email, mi->email, maxlen_email); | |
f026358e JH |
282 | else |
283 | *end_of_email = '\0'; | |
0925ce4d MSO |
284 | if (maxlen_name && mi->name) |
285 | strlcpy(name, mi->name, maxlen_name); | |
286 | debug_mm("map_user: to '%s' <%s>\n", name, mi->email ? mi->email : ""); | |
7c1c6782 JH |
287 | return 1; |
288 | } | |
0925ce4d | 289 | debug_mm("map_user: --\n"); |
7c1c6782 JH |
290 | return 0; |
291 | } |