git/builtin-shortlog.c

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7.2 KiB
C
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#include "builtin.h"
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "path-list.h"
#include "revision.h"
#include "utf8.h"
#include "mailmap.h"
#include "shortlog.h"
static const char shortlog_usage[] =
"git-shortlog [-n] [-s] [-e] [<commit-id>... ]";
static int compare_by_number(const void *a1, const void *a2)
{
const struct path_list_item *i1 = a1, *i2 = a2;
const struct path_list *l1 = i1->util, *l2 = i2->util;
if (l1->nr < l2->nr)
return 1;
else if (l1->nr == l2->nr)
return 0;
else
return -1;
}
static void insert_one_record(struct shortlog *log,
const char *author,
const char *oneline)
{
const char *dot3 = log->common_repo_prefix;
char *buffer, *p;
struct path_list_item *item;
struct path_list *onelines;
char namebuf[1024];
size_t len;
const char *eol;
const char *boemail, *eoemail;
boemail = strchr(author, '<');
if (!boemail)
return;
eoemail = strchr(boemail, '>');
if (!eoemail)
return;
if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
while (author < boemail && isspace(*author))
author++;
for (len = 0;
len < sizeof(namebuf) - 1 && author + len < boemail;
len++)
namebuf[len] = author[len];
while (0 < len && isspace(namebuf[len-1]))
len--;
namebuf[len] = '\0';
}
else
len = strlen(namebuf);
if (log->email) {
size_t room = sizeof(namebuf) - len - 1;
int maillen = eoemail - boemail + 1;
snprintf(namebuf + len, room, " %.*s", maillen, boemail);
}
buffer = xstrdup(namebuf);
item = path_list_insert(buffer, &log->list);
if (item->util == NULL)
item->util = xcalloc(1, sizeof(struct path_list));
else
free(buffer);
/* Skip any leading whitespace, including any blank lines. */
while (*oneline && isspace(*oneline))
oneline++;
eol = strchr(oneline, '\n');
if (!eol)
eol = oneline + strlen(oneline);
if (!prefixcmp(oneline, "[PATCH")) {
char *eob = strchr(oneline, ']');
if (eob && (!eol || eob < eol))
oneline = eob + 1;
}
while (*oneline && isspace(*oneline) && *oneline != '\n')
oneline++;
len = eol - oneline;
while (len && isspace(oneline[len-1]))
len--;
buffer = xmemdupz(oneline, len);
if (dot3) {
int dot3len = strlen(dot3);
if (dot3len > 5) {
while ((p = strstr(buffer, dot3)) != NULL) {
int taillen = strlen(p) - dot3len;
memcpy(p, "/.../", 5);
memmove(p + 5, p + dot3len, taillen + 1);
}
}
}
onelines = item->util;
if (onelines->nr >= onelines->alloc) {
onelines->alloc = alloc_nr(onelines->nr);
onelines->items = xrealloc(onelines->items,
onelines->alloc
* sizeof(struct path_list_item));
}
onelines->items[onelines->nr].util = NULL;
onelines->items[onelines->nr++].path = buffer;
}
static void read_from_stdin(struct shortlog *log)
{
char author[1024], oneline[1024];
while (fgets(author, sizeof(author), stdin) != NULL) {
if (!(author[0] == 'A' || author[0] == 'a') ||
prefixcmp(author + 1, "uthor: "))
continue;
while (fgets(oneline, sizeof(oneline), stdin) &&
oneline[0] != '\n')
; /* discard headers */
while (fgets(oneline, sizeof(oneline), stdin) &&
oneline[0] == '\n')
; /* discard blanks */
insert_one_record(log, author + 8, oneline);
}
}
void shortlog_add_commit(struct shortlog *log, struct commit *commit)
{
const char *author = NULL, *buffer;
buffer = commit->buffer;
while (*buffer && *buffer != '\n') {
const char *eol = strchr(buffer, '\n');
if (eol == NULL)
eol = buffer + strlen(buffer);
else
eol++;
if (!prefixcmp(buffer, "author "))
author = buffer + 7;
buffer = eol;
}
if (!author)
die("Missing author: %s",
sha1_to_hex(commit->object.sha1));
if (*buffer)
buffer++;
insert_one_record(log, author, !*buffer ? "<none>" : buffer);
}
static void get_from_rev(struct rev_info *rev, struct shortlog *log)
{
struct commit *commit;
if (prepare_revision_walk(rev))
die("revision walk setup failed");
while ((commit = get_revision(rev)) != NULL)
shortlog_add_commit(log, commit);
}
static int parse_uint(char const **arg, int comma)
{
unsigned long ul;
int ret;
char *endp;
ul = strtoul(*arg, &endp, 10);
if (endp != *arg && *endp && *endp != comma)
return -1;
ret = (int) ul;
if (ret != ul)
return -1;
*arg = endp;
if (**arg)
(*arg)++;
return ret;
}
static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
#define DEFAULT_WRAPLEN 76
#define DEFAULT_INDENT1 6
#define DEFAULT_INDENT2 9
static void parse_wrap_args(const char *arg, int *in1, int *in2, int *wrap)
{
arg += 2; /* skip -w */
*wrap = parse_uint(&arg, ',');
if (*wrap < 0)
die(wrap_arg_usage);
*in1 = parse_uint(&arg, ',');
if (*in1 < 0)
die(wrap_arg_usage);
*in2 = parse_uint(&arg, '\0');
if (*in2 < 0)
die(wrap_arg_usage);
if (!*wrap)
*wrap = DEFAULT_WRAPLEN;
if (!*in1)
*in1 = DEFAULT_INDENT1;
if (!*in2)
*in2 = DEFAULT_INDENT2;
if (*wrap &&
((*in1 && *wrap <= *in1) ||
(*in2 && *wrap <= *in2)))
die(wrap_arg_usage);
}
void shortlog_init(struct shortlog *log)
{
memset(log, 0, sizeof(*log));
read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);
log->list.strdup_paths = 1;
log->wrap = DEFAULT_WRAPLEN;
log->in1 = DEFAULT_INDENT1;
log->in2 = DEFAULT_INDENT2;
}
int cmd_shortlog(int argc, const char **argv, const char *prefix)
{
struct shortlog log;
struct rev_info rev;
shortlog_init(&log);
/* since -n is a shadowed rev argument, parse our args first */
while (argc > 1) {
if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
log.sort_by_number = 1;
else if (!strcmp(argv[1], "-s") ||
!strcmp(argv[1], "--summary"))
log.summary = 1;
else if (!strcmp(argv[1], "-e") ||
!strcmp(argv[1], "--email"))
log.email = 1;
else if (!prefixcmp(argv[1], "-w")) {
log.wrap_lines = 1;
parse_wrap_args(argv[1], &log.in1, &log.in2, &log.wrap);
}
else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
usage(shortlog_usage);
else
break;
argv++;
argc--;
}
init_revisions(&rev, prefix);
argc = setup_revisions(argc, argv, &rev, NULL);
if (argc > 1)
die ("unrecognized argument: %s", argv[1]);
/* assume HEAD if from a tty */
if (!rev.pending.nr && isatty(0))
add_head_to_pending(&rev);
if (rev.pending.nr == 0) {
read_from_stdin(&log);
}
else
get_from_rev(&rev, &log);
shortlog_output(&log);
return 0;
}
void shortlog_output(struct shortlog *log)
{
int i, j;
if (log->sort_by_number)
qsort(log->list.items, log->list.nr, sizeof(struct path_list_item),
compare_by_number);
for (i = 0; i < log->list.nr; i++) {
struct path_list *onelines = log->list.items[i].util;
if (log->summary) {
printf("%6d\t%s\n", onelines->nr, log->list.items[i].path);
} else {
printf("%s (%d):\n", log->list.items[i].path, onelines->nr);
for (j = onelines->nr - 1; j >= 0; j--) {
const char *msg = onelines->items[j].path;
if (log->wrap_lines) {
int col = print_wrapped_text(msg, log->in1, log->in2, log->wrap);
if (col != log->wrap)
putchar('\n');
}
else
printf(" %s\n", msg);
}
putchar('\n');
}
onelines->strdup_paths = 1;
path_list_clear(onelines, 1);
free(onelines);
log->list.items[i].util = NULL;
}
log->list.strdup_paths = 1;
path_list_clear(&log->list, 1);
log->mailmap.strdup_paths = 1;
path_list_clear(&log->mailmap, 1);
}