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mailmap: refactor mailmap parsing for non-file sources 

The read_single_mailmap function opens a mailmap file and
parses each line. In preparation for having non-file
mailmaps, let's pull out the line-parsing logic into its own
function (read_mailmap_line), and rename the file-parsing
function to match (read_mailmap_file).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2012-12-12 05:59:45 -05:00 committed by Junio C Hamano
parent 75ed918bda
commit 7c8ce308d3
1 changed files with 40 additions and 34 deletions
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74
mailmap.c
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@ -129,44 +129,50 @@ static char *parse_name_and_email(char *buffer, char **name,
return (*right == '\0' ? NULL : right);
}
static int read_single_mailmap(struct string_list *map, const char *filename, char **repo_abbrev)
static void read_mailmap_line(struct string_list *map, char *buffer,
char **repo_abbrev)
{
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)
return;
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);
}
return;
}
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);
}
static int read_mailmap_file(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);
}
while (fgets(buffer, sizeof(buffer), f) != NULL)
read_mailmap_line(map, buffer, repo_abbrev);
fclose(f);
return 0;
}
@ -175,8 +181,8 @@ 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;
return read_mailmap_file(map, ".mailmap", repo_abbrev) +
read_mailmap_file(map, git_mailmap_file, repo_abbrev) > 1;
}
void clear_mailmap(struct string_list *map)