builtin-commit: use reduce_heads() only when appropriate
[git] / mailmap.c
1 #include "cache.h"
2 #include "string-list.h"
3 #include "mailmap.h"
4
5 int read_mailmap(struct string_list *map, const char *filename, char **repo_abbrev)
6 {
7         char buffer[1024];
8         FILE *f = fopen(filename, "r");
9
10         if (f == NULL)
11                 return 1;
12         while (fgets(buffer, sizeof(buffer), f) != NULL) {
13                 char *end_of_name, *left_bracket, *right_bracket;
14                 char *name, *email;
15                 int i;
16                 if (buffer[0] == '#') {
17                         static const char abbrev[] = "# repo-abbrev:";
18                         int abblen = sizeof(abbrev) - 1;
19                         int len = strlen(buffer);
20
21                         if (!repo_abbrev)
22                                 continue;
23
24                         if (len && buffer[len - 1] == '\n')
25                                 buffer[--len] = 0;
26                         if (!strncmp(buffer, abbrev, abblen)) {
27                                 char *cp;
28
29                                 if (repo_abbrev)
30                                         free(*repo_abbrev);
31                                 *repo_abbrev = xmalloc(len);
32
33                                 for (cp = buffer + abblen; isspace(*cp); cp++)
34                                         ; /* nothing */
35                                 strcpy(*repo_abbrev, cp);
36                         }
37                         continue;
38                 }
39                 if ((left_bracket = strchr(buffer, '<')) == NULL)
40                         continue;
41                 if ((right_bracket = strchr(left_bracket + 1, '>')) == NULL)
42                         continue;
43                 if (right_bracket == left_bracket + 1)
44                         continue;
45                 for (end_of_name = left_bracket;
46                      end_of_name != buffer && isspace(end_of_name[-1]);
47                      end_of_name--)
48                         ; /* keep on looking */
49                 if (end_of_name == buffer)
50                         continue;
51                 name = xmalloc(end_of_name - buffer + 1);
52                 strlcpy(name, buffer, end_of_name - buffer + 1);
53                 email = xmalloc(right_bracket - left_bracket);
54                 for (i = 0; i < right_bracket - left_bracket - 1; i++)
55                         email[i] = tolower(left_bracket[i + 1]);
56                 email[right_bracket - left_bracket - 1] = '\0';
57                 string_list_insert(email, map)->util = name;
58         }
59         fclose(f);
60         return 0;
61 }
62
63 int map_email(struct string_list *map, const char *email, char *name, int maxlen)
64 {
65         char *p;
66         struct string_list_item *item;
67         char buf[1024], *mailbuf;
68         int i;
69
70         /* autocomplete common developers */
71         p = strchr(email, '>');
72         if (!p)
73                 return 0;
74         if (p - email + 1 < sizeof(buf))
75                 mailbuf = buf;
76         else
77                 mailbuf = xmalloc(p - email + 1);
78
79         /* downcase the email address */
80         for (i = 0; i < p - email; i++)
81                 mailbuf[i] = tolower(email[i]);
82         mailbuf[i] = 0;
83         item = string_list_lookup(mailbuf, map);
84         if (mailbuf != buf)
85                 free(mailbuf);
86         if (item != NULL) {
87                 const char *realname = (const char *)item->util;
88                 strlcpy(name, realname, maxlen);
89                 return 1;
90         }
91         return 0;
92 }