| #include "cache.h" |
| #include "string-list.h" |
| #include "mailmap.h" |
| |
| #define DEBUG_MAILMAP 0 |
| #if DEBUG_MAILMAP |
| #define debug_mm(...) fprintf(stderr, __VA_ARGS__) |
| #else |
| static inline void debug_mm(const char *format, ...) {} |
| #endif |
| |
| const char *git_mailmap_file; |
| |
| struct mailmap_info { |
| char *name; |
| char *email; |
| }; |
| |
| struct mailmap_entry { |
| /* name and email for the simple mail-only case */ |
| char *name; |
| char *email; |
| |
| /* name and email for the complex mail and name matching case */ |
| struct string_list namemap; |
| }; |
| |
| static void free_mailmap_info(void *p, const char *s) |
| { |
| struct mailmap_info *mi = (struct mailmap_info *)p; |
| debug_mm("mailmap: -- complex: '%s' -> '%s' <%s>\n", s, mi->name, mi->email); |
| free(mi->name); |
| free(mi->email); |
| } |
| |
| static void free_mailmap_entry(void *p, const char *s) |
| { |
| struct mailmap_entry *me = (struct mailmap_entry *)p; |
| debug_mm("mailmap: removing entries for <%s>, with %d sub-entries\n", s, me->namemap.nr); |
| debug_mm("mailmap: - simple: '%s' <%s>\n", me->name, me->email); |
| free(me->name); |
| free(me->email); |
| |
| me->namemap.strdup_strings = 1; |
| string_list_clear_func(&me->namemap, free_mailmap_info); |
| } |
| |
| static void add_mapping(struct string_list *map, |
| char *new_name, char *new_email, char *old_name, char *old_email) |
| { |
| struct mailmap_entry *me; |
| int index; |
| char *p; |
| |
| if (old_email) |
| for (p = old_email; *p; p++) |
| *p = tolower(*p); |
| if (new_email) |
| for (p = new_email; *p; p++) |
| *p = tolower(*p); |
| |
| if (old_email == NULL) { |
| old_email = new_email; |
| new_email = NULL; |
| } |
| |
| if ((index = string_list_find_insert_index(map, old_email, 1)) < 0) { |
| /* mailmap entry exists, invert index value */ |
| index = -1 - index; |
| } else { |
| /* create mailmap entry */ |
| struct string_list_item *item = string_list_insert_at_index(map, index, old_email); |
| item->util = xcalloc(1, sizeof(struct mailmap_entry)); |
| ((struct mailmap_entry *)item->util)->namemap.strdup_strings = 1; |
| } |
| me = (struct mailmap_entry *)map->items[index].util; |
| |
| if (old_name == NULL) { |
| debug_mm("mailmap: adding (simple) entry for %s at index %d\n", old_email, index); |
| /* Replace current name and new email for simple entry */ |
| if (new_name) { |
| free(me->name); |
| me->name = xstrdup(new_name); |
| } |
| if (new_email) { |
| free(me->email); |
| me->email = xstrdup(new_email); |
| } |
| } else { |
| struct mailmap_info *mi = xcalloc(1, sizeof(struct mailmap_info)); |
| debug_mm("mailmap: adding (complex) entry for %s at index %d\n", old_email, index); |
| if (new_name) |
| mi->name = xstrdup(new_name); |
| if (new_email) |
| mi->email = xstrdup(new_email); |
| string_list_insert(&me->namemap, old_name)->util = mi; |
| } |
| |
| debug_mm("mailmap: '%s' <%s> -> '%s' <%s>\n", |
| old_name, old_email, new_name, new_email); |
| } |
| |
| static char *parse_name_and_email(char *buffer, char **name, |
| char **email, int allow_empty_email) |
| { |
| char *left, *right, *nstart, *nend; |
| *name = *email = NULL; |
| |
| if ((left = strchr(buffer, '<')) == NULL) |
| return NULL; |
| if ((right = strchr(left+1, '>')) == NULL) |
| return NULL; |
| if (!allow_empty_email && (left+1 == right)) |
| return NULL; |
| |
| /* remove whitespace from beginning and end of name */ |
| nstart = buffer; |
| while (isspace(*nstart) && nstart < left) |
| ++nstart; |
| nend = left-1; |
| while (isspace(*nend) && nend > nstart) |
| --nend; |
| |
| *name = (nstart < nend ? nstart : NULL); |
| *email = left+1; |
| *(nend+1) = '\0'; |
| *right++ = '\0'; |
| |
| return (*right == '\0' ? NULL : right); |
| } |
| |
| static int read_single_mailmap(struct string_list *map, const char *filename, char **repo_abbrev) |
| { |
| char buffer[1024]; |
| FILE *f = (filename == NULL ? NULL : fopen(filename, "r")); |
| |
| if (f == NULL) |
| return 1; |
| while (fgets(buffer, sizeof(buffer), f) != NULL) { |
| char *name1 = NULL, *email1 = NULL, *name2 = NULL, *email2 = NULL; |
| if (buffer[0] == '#') { |
| static const char abbrev[] = "# repo-abbrev:"; |
| int abblen = sizeof(abbrev) - 1; |
| int len = strlen(buffer); |
| |
| if (!repo_abbrev) |
| continue; |
| |
| if (len && buffer[len - 1] == '\n') |
| buffer[--len] = 0; |
| if (!strncmp(buffer, abbrev, abblen)) { |
| char *cp; |
| |
| if (repo_abbrev) |
| free(*repo_abbrev); |
| *repo_abbrev = xmalloc(len); |
| |
| for (cp = buffer + abblen; isspace(*cp); cp++) |
| ; /* nothing */ |
| strcpy(*repo_abbrev, cp); |
| } |
| continue; |
| } |
| if ((name2 = parse_name_and_email(buffer, &name1, &email1, 0)) != NULL) |
| parse_name_and_email(name2, &name2, &email2, 1); |
| |
| if (email1) |
| add_mapping(map, name1, email1, name2, email2); |
| } |
| fclose(f); |
| return 0; |
| } |
| |
| int read_mailmap(struct string_list *map, char **repo_abbrev) |
| { |
| map->strdup_strings = 1; |
| /* each failure returns 1, so >1 means both calls failed */ |
| return read_single_mailmap(map, ".mailmap", repo_abbrev) + |
| read_single_mailmap(map, git_mailmap_file, repo_abbrev) > 1; |
| } |
| |
| void clear_mailmap(struct string_list *map) |
| { |
| debug_mm("mailmap: clearing %d entries...\n", map->nr); |
| map->strdup_strings = 1; |
| string_list_clear_func(map, free_mailmap_entry); |
| debug_mm("mailmap: cleared\n"); |
| } |
| |
| int map_user(struct string_list *map, |
| char *email, int maxlen_email, char *name, int maxlen_name) |
| { |
| char *end_of_email; |
| struct string_list_item *item; |
| struct mailmap_entry *me; |
| char buf[1024], *mailbuf; |
| int i; |
| |
| /* figure out space requirement for email */ |
| end_of_email = strchr(email, '>'); |
| if (!end_of_email) { |
| /* email passed in might not be wrapped in <>, but end with a \0 */ |
| end_of_email = memchr(email, '\0', maxlen_email); |
| if (!end_of_email) |
| return 0; |
| } |
| if (end_of_email - email + 1 < sizeof(buf)) |
| mailbuf = buf; |
| else |
| mailbuf = xmalloc(end_of_email - email + 1); |
| |
| /* downcase the email address */ |
| for (i = 0; i < end_of_email - email; i++) |
| mailbuf[i] = tolower(email[i]); |
| mailbuf[i] = 0; |
| |
| debug_mm("map_user: map '%s' <%s>\n", name, mailbuf); |
| item = string_list_lookup(map, mailbuf); |
| if (item != NULL) { |
| me = (struct mailmap_entry *)item->util; |
| if (me->namemap.nr) { |
| /* The item has multiple items, so we'll look up on name too */ |
| /* If the name is not found, we choose the simple entry */ |
| struct string_list_item *subitem = string_list_lookup(&me->namemap, name); |
| if (subitem) |
| item = subitem; |
| } |
| } |
| if (mailbuf != buf) |
| free(mailbuf); |
| if (item != NULL) { |
| struct mailmap_info *mi = (struct mailmap_info *)item->util; |
| if (mi->name == NULL && (mi->email == NULL || maxlen_email == 0)) { |
| debug_mm("map_user: -- (no simple mapping)\n"); |
| return 0; |
| } |
| if (maxlen_email && mi->email) |
| strlcpy(email, mi->email, maxlen_email); |
| else |
| *end_of_email = '\0'; |
| if (maxlen_name && mi->name) |
| strlcpy(name, mi->name, maxlen_name); |
| debug_mm("map_user: to '%s' <%s>\n", name, mi->email ? mi->email : ""); |
| return 1; |
| } |
| debug_mm("map_user: --\n"); |
| return 0; |
| } |