Clearify the documentation for core.ignoreStat
[git/dscho.git] / builtin-shortlog.c
blobe6a2865019cceadfcbfc8575a2bd1f97b7159dcb
1 #include "builtin.h"
2 #include "cache.h"
3 #include "commit.h"
4 #include "diff.h"
5 #include "path-list.h"
6 #include "revision.h"
7 #include "utf8.h"
8 #include "mailmap.h"
9 #include "shortlog.h"
11 static const char shortlog_usage[] =
12 "git-shortlog [-n] [-s] [-e] [-w] [<commit-id>... ]";
14 static int compare_by_number(const void *a1, const void *a2)
16 const struct path_list_item *i1 = a1, *i2 = a2;
17 const struct path_list *l1 = i1->util, *l2 = i2->util;
19 if (l1->nr < l2->nr)
20 return 1;
21 else if (l1->nr == l2->nr)
22 return 0;
23 else
24 return -1;
27 static void insert_one_record(struct shortlog *log,
28 const char *author,
29 const char *oneline)
31 const char *dot3 = log->common_repo_prefix;
32 char *buffer, *p;
33 struct path_list_item *item;
34 struct path_list *onelines;
35 char namebuf[1024];
36 size_t len;
37 const char *eol;
38 const char *boemail, *eoemail;
40 boemail = strchr(author, '<');
41 if (!boemail)
42 return;
43 eoemail = strchr(boemail, '>');
44 if (!eoemail)
45 return;
46 if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
47 while (author < boemail && isspace(*author))
48 author++;
49 for (len = 0;
50 len < sizeof(namebuf) - 1 && author + len < boemail;
51 len++)
52 namebuf[len] = author[len];
53 while (0 < len && isspace(namebuf[len-1]))
54 len--;
55 namebuf[len] = '\0';
57 else
58 len = strlen(namebuf);
60 if (log->email) {
61 size_t room = sizeof(namebuf) - len - 1;
62 int maillen = eoemail - boemail + 1;
63 snprintf(namebuf + len, room, " %.*s", maillen, boemail);
66 buffer = xstrdup(namebuf);
67 item = path_list_insert(buffer, &log->list);
68 if (item->util == NULL)
69 item->util = xcalloc(1, sizeof(struct path_list));
70 else
71 free(buffer);
73 /* Skip any leading whitespace, including any blank lines. */
74 while (*oneline && isspace(*oneline))
75 oneline++;
76 eol = strchr(oneline, '\n');
77 if (!eol)
78 eol = oneline + strlen(oneline);
79 if (!prefixcmp(oneline, "[PATCH")) {
80 char *eob = strchr(oneline, ']');
81 if (eob && (!eol || eob < eol))
82 oneline = eob + 1;
84 while (*oneline && isspace(*oneline) && *oneline != '\n')
85 oneline++;
86 len = eol - oneline;
87 while (len && isspace(oneline[len-1]))
88 len--;
89 buffer = xmemdupz(oneline, len);
91 if (dot3) {
92 int dot3len = strlen(dot3);
93 if (dot3len > 5) {
94 while ((p = strstr(buffer, dot3)) != NULL) {
95 int taillen = strlen(p) - dot3len;
96 memcpy(p, "/.../", 5);
97 memmove(p + 5, p + dot3len, taillen + 1);
102 onelines = item->util;
103 if (onelines->nr >= onelines->alloc) {
104 onelines->alloc = alloc_nr(onelines->nr);
105 onelines->items = xrealloc(onelines->items,
106 onelines->alloc
107 * sizeof(struct path_list_item));
110 onelines->items[onelines->nr].util = NULL;
111 onelines->items[onelines->nr++].path = buffer;
114 static void read_from_stdin(struct shortlog *log)
116 char author[1024], oneline[1024];
118 while (fgets(author, sizeof(author), stdin) != NULL) {
119 if (!(author[0] == 'A' || author[0] == 'a') ||
120 prefixcmp(author + 1, "uthor: "))
121 continue;
122 while (fgets(oneline, sizeof(oneline), stdin) &&
123 oneline[0] != '\n')
124 ; /* discard headers */
125 while (fgets(oneline, sizeof(oneline), stdin) &&
126 oneline[0] == '\n')
127 ; /* discard blanks */
128 insert_one_record(log, author + 8, oneline);
132 void shortlog_add_commit(struct shortlog *log, struct commit *commit)
134 const char *author = NULL, *buffer;
136 buffer = commit->buffer;
137 while (*buffer && *buffer != '\n') {
138 const char *eol = strchr(buffer, '\n');
140 if (eol == NULL)
141 eol = buffer + strlen(buffer);
142 else
143 eol++;
145 if (!prefixcmp(buffer, "author "))
146 author = buffer + 7;
147 buffer = eol;
149 if (!author)
150 die("Missing author: %s",
151 sha1_to_hex(commit->object.sha1));
152 if (*buffer)
153 buffer++;
154 insert_one_record(log, author, !*buffer ? "<none>" : buffer);
157 static void get_from_rev(struct rev_info *rev, struct shortlog *log)
159 struct commit *commit;
161 if (prepare_revision_walk(rev))
162 die("revision walk setup failed");
163 while ((commit = get_revision(rev)) != NULL)
164 shortlog_add_commit(log, commit);
167 static int parse_uint(char const **arg, int comma)
169 unsigned long ul;
170 int ret;
171 char *endp;
173 ul = strtoul(*arg, &endp, 10);
174 if (endp != *arg && *endp && *endp != comma)
175 return -1;
176 ret = (int) ul;
177 if (ret != ul)
178 return -1;
179 *arg = endp;
180 if (**arg)
181 (*arg)++;
182 return ret;
185 static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
186 #define DEFAULT_WRAPLEN 76
187 #define DEFAULT_INDENT1 6
188 #define DEFAULT_INDENT2 9
190 static void parse_wrap_args(const char *arg, int *in1, int *in2, int *wrap)
192 arg += 2; /* skip -w */
194 *wrap = parse_uint(&arg, ',');
195 if (*wrap < 0)
196 die(wrap_arg_usage);
197 *in1 = parse_uint(&arg, ',');
198 if (*in1 < 0)
199 die(wrap_arg_usage);
200 *in2 = parse_uint(&arg, '\0');
201 if (*in2 < 0)
202 die(wrap_arg_usage);
204 if (!*wrap)
205 *wrap = DEFAULT_WRAPLEN;
206 if (!*in1)
207 *in1 = DEFAULT_INDENT1;
208 if (!*in2)
209 *in2 = DEFAULT_INDENT2;
210 if (*wrap &&
211 ((*in1 && *wrap <= *in1) ||
212 (*in2 && *wrap <= *in2)))
213 die(wrap_arg_usage);
216 void shortlog_init(struct shortlog *log)
218 memset(log, 0, sizeof(*log));
220 read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);
222 log->list.strdup_paths = 1;
223 log->wrap = DEFAULT_WRAPLEN;
224 log->in1 = DEFAULT_INDENT1;
225 log->in2 = DEFAULT_INDENT2;
228 int cmd_shortlog(int argc, const char **argv, const char *prefix)
230 struct shortlog log;
231 struct rev_info rev;
232 int nongit;
234 prefix = setup_git_directory_gently(&nongit);
235 shortlog_init(&log);
237 /* since -n is a shadowed rev argument, parse our args first */
238 while (argc > 1) {
239 if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
240 log.sort_by_number = 1;
241 else if (!strcmp(argv[1], "-s") ||
242 !strcmp(argv[1], "--summary"))
243 log.summary = 1;
244 else if (!strcmp(argv[1], "-e") ||
245 !strcmp(argv[1], "--email"))
246 log.email = 1;
247 else if (!prefixcmp(argv[1], "-w")) {
248 log.wrap_lines = 1;
249 parse_wrap_args(argv[1], &log.in1, &log.in2, &log.wrap);
251 else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
252 usage(shortlog_usage);
253 else
254 break;
255 argv++;
256 argc--;
258 init_revisions(&rev, prefix);
259 argc = setup_revisions(argc, argv, &rev, NULL);
260 if (argc > 1)
261 die ("unrecognized argument: %s", argv[1]);
263 /* assume HEAD if from a tty */
264 if (!nongit && !rev.pending.nr && isatty(0))
265 add_head_to_pending(&rev);
266 if (rev.pending.nr == 0) {
267 read_from_stdin(&log);
269 else
270 get_from_rev(&rev, &log);
272 shortlog_output(&log);
273 return 0;
276 void shortlog_output(struct shortlog *log)
278 int i, j;
279 if (log->sort_by_number)
280 qsort(log->list.items, log->list.nr, sizeof(struct path_list_item),
281 compare_by_number);
282 for (i = 0; i < log->list.nr; i++) {
283 struct path_list *onelines = log->list.items[i].util;
285 if (log->summary) {
286 printf("%6d\t%s\n", onelines->nr, log->list.items[i].path);
287 } else {
288 printf("%s (%d):\n", log->list.items[i].path, onelines->nr);
289 for (j = onelines->nr - 1; j >= 0; j--) {
290 const char *msg = onelines->items[j].path;
292 if (log->wrap_lines) {
293 int col = print_wrapped_text(msg, log->in1, log->in2, log->wrap);
294 if (col != log->wrap)
295 putchar('\n');
297 else
298 printf(" %s\n", msg);
300 putchar('\n');
303 onelines->strdup_paths = 1;
304 path_list_clear(onelines, 1);
305 free(onelines);
306 log->list.items[i].util = NULL;
309 log->list.strdup_paths = 1;
310 path_list_clear(&log->list, 1);
311 log->mailmap.strdup_paths = 1;
312 path_list_clear(&log->mailmap, 1);