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| | #include "cache.h"
#include "authors.h"
#include "string.h"
#include "strbuf.h"
/*
* given an authors line, split the fields
* to allow the caller to parse it.
* Signal a success by returning 0.
*/
int split_authors_line(struct authors_split *split, const char *line, int len)
{
const char *cp;
memset(split, 0, sizeof(*split));
split->begin = line;
for (cp = line + len - 1; *cp != '>'; cp--)
if (cp == line) return -1;
split->end = cp + 1;
return 0;
}
void read_authors_map_line(struct string_list *map, char *buffer)
{
int len = strlen(buffer);
if (len && buffer[len - 1] == '\n')
buffer[--len] = 0;
string_list_insert(map, xstrdup(buffer));
}
void read_authors_map_file(struct string_list *map)
{
char buffer[1024];
FILE *f;
const char *filename;
const char *home;
home = getenv("HOME");
if (!home)
die("HOME not set");
filename = mkpathdup("%s/.git_authors_map", home);
f = fopen(filename, "r");
if (!f) {
if (errno == ENOENT) {
warning("~/.git_authors_map does not exist");
return;
}
die_errno("unable to open authors map at %s", filename);
}
while (fgets(buffer, sizeof(buffer), f) != NULL)
read_authors_map_line(map, buffer);
fclose(f);
}
char *lookup_author(struct string_list *map, const char *author_abbr)
{
struct string_list_item *author_item = NULL;
struct string_list_item *item;
for_each_string_list_item(item, map) {
if (strncmp(item->string, author_abbr, strlen(author_abbr)) == 0 &&
strlen(item->string) > strlen(author_abbr) &&
*(item->string + strlen(author_abbr)) == ' ') {
author_item = item;
break;
}
}
if (!author_item)
return NULL;
return xstrdup(author_item->string + strlen(author_abbr) + 1);
}
const char *expand_authors(struct string_list *map, const char *author_shorts)
{
int i;
const char *author_start = author_shorts;
const char *author_end;
char *author_short, *expanded_author;
static struct strbuf expanded_authors = STRBUF_INIT;
strbuf_reset(&expanded_authors);
for (i = 0; i <= strlen(author_shorts); i++) {
author_end = author_shorts + i;
if (*author_end == ' ' || *author_end == '\0') {
author_short = xstrndup(author_start, author_end - author_start);
expanded_author = lookup_author(map, author_short);
if (!expanded_author)
die("Could not expand author '%s'. Add it to the file ~/.git_authors_map.", author_short);
else {
if (expanded_authors.len > 0)
strbuf_addch(&expanded_authors, ',');
strbuf_addstr(&expanded_authors, expanded_author);
free(expanded_author);
}
free(author_short);
author_start = author_end + 1;
}
}
return expanded_authors.buf;
}
const char *git_authors_info(void)
{
static struct strbuf authors_info = STRBUF_INIT;
const char *authors_config = NULL;
const char *date_str = NULL;
struct string_list authors_map = STRING_LIST_INIT_NODUP;
if (git_config_get_string_const("authors.current", &authors_config))
return NULL;
read_authors_map_file(&authors_map);
strbuf_reset(&authors_info);
strbuf_addstr(&authors_info, expand_authors(&authors_map, authors_config));
strbuf_addch(&authors_info, ' ');
date_str = getenv("GIT_AUTHOR_DATE");
if (date_str && date_str[0]) {
if (parse_date(date_str, &authors_info) < 0)
die("invalid date format: %s", date_str);
}
else
strbuf_addstr(&authors_info, ident_default_date());
return authors_info.buf;
}
const char *git_authors_first_info(const char *authors)
{
static struct strbuf authors_first_info = STRBUF_INIT;
struct authors_split split;
const char *cp;
if (split_authors_line(&split, authors, strlen(authors)) < 0)
die("invalid authors format: %s", authors);
for (cp = split.begin; cp < split.end; cp++)
if (*cp == ',')
break;
strbuf_add(&authors_first_info, split.begin, cp - split.begin);
strbuf_add(&authors_first_info, split.end, strlen(authors));
return authors_first_info.buf;
}
const char *authors_split_to_email_froms(const struct authors_split *authors)
{
static struct strbuf email_froms = STRBUF_INIT;
const char *cp;
strbuf_reset(&email_froms);
strbuf_addstr(&email_froms, "From: ");
for(cp = authors->begin; cp < authors->end; cp++)
if (*cp == ',')
strbuf_addstr(&email_froms, "\nFrom: ");
else
strbuf_addch(&email_froms, *cp);
strbuf_addch(&email_froms, '\n');
return email_froms.buf;
}
int has_multiple_authors(const char *authors)
{
const char *cp = authors;
while (*cp != '\0')
if (*cp++ == ',')
return 1;
return 0;
}
const char *fmt_authors(const char *authors, const char *date_str)
{
static struct strbuf authors_info = STRBUF_INIT;
strbuf_reset(&authors_info);
strbuf_addstr(&authors_info, authors);
strbuf_addch(&authors_info, ' ');
if (date_str && date_str[0]) {
if (parse_date(date_str, &authors_info) < 0)
die("invalid date format: %s", date_str);
}
else
strbuf_addstr(&authors_info, ident_default_date());
return authors_info.buf;
}
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