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
10static const char shortlog_usage[] =
11"git-shortlog [-n] [-s] [<commit-id>... ]";
12
13static char *common_repo_prefix;
14static int email;
15
16static int compare_by_number(const void *a1, const void *a2)
17{
18 const struct path_list_item *i1 = a1, *i2 = a2;
19 const struct path_list *l1 = i1->util, *l2 = i2->util;
20
21 if (l1->nr < l2->nr)
22 return 1;
23 else if (l1->nr == l2->nr)
24 return 0;
25 else
26 return -1;
27}
28
29static struct path_list mailmap = {NULL, 0, 0, 0};
30
31static void insert_one_record(struct path_list *list,
32 const char *author,
33 const char *oneline)
34{
35 const char *dot3 = common_repo_prefix;
36 char *buffer, *p;
37 struct path_list_item *item;
38 struct path_list *onelines;
39 char namebuf[1024];
40 size_t len;
41 const char *eol;
42 const char *boemail, *eoemail;
43
44 boemail = strchr(author, '<');
45 if (!boemail)
46 return;
47 eoemail = strchr(boemail, '>');
48 if (!eoemail)
49 return;
50 if (!map_email(&mailmap, boemail+1, namebuf, sizeof(namebuf))) {
51 while (author < boemail && isspace(*author))
52 author++;
53 for (len = 0;
54 len < sizeof(namebuf) - 1 && author + len < boemail;
55 len++)
56 namebuf[len] = author[len];
57 while (0 < len && isspace(namebuf[len-1]))
58 len--;
59 namebuf[len] = '\0';
60 }
61 else
62 len = strlen(namebuf);
63
64 if (email) {
65 size_t room = sizeof(namebuf) - len - 1;
66 int maillen = eoemail - boemail + 1;
67 snprintf(namebuf + len, room, " %.*s", maillen, boemail);
68 }
69
70 buffer = xstrdup(namebuf);
71 item = path_list_insert(buffer, list);
72 if (item->util == NULL)
73 item->util = xcalloc(1, sizeof(struct path_list));
74 else
75 free(buffer);
76
77 eol = strchr(oneline, '\n');
78 if (!eol)
79 eol = oneline + strlen(oneline);
80 while (*oneline && isspace(*oneline) && *oneline != '\n')
81 oneline++;
82 if (!prefixcmp(oneline, "[PATCH")) {
83 char *eob = strchr(oneline, ']');
84 if (eob && (!eol || eob < eol))
85 oneline = eob + 1;
86 }
87 while (*oneline && isspace(*oneline) && *oneline != '\n')
88 oneline++;
89 len = eol - oneline;
90 while (len && isspace(oneline[len-1]))
91 len--;
92 buffer = xmemdupz(oneline, len);
93
94 if (dot3) {
95 int dot3len = strlen(dot3);
96 if (dot3len > 5) {
97 while ((p = strstr(buffer, dot3)) != NULL) {
98 int taillen = strlen(p) - dot3len;
99 memcpy(p, "/.../", 5);
100 memmove(p + 5, p + dot3len, taillen + 1);
101 }
102 }
103 }
104
105 onelines = item->util;
106 if (onelines->nr >= onelines->alloc) {
107 onelines->alloc = alloc_nr(onelines->nr);
108 onelines->items = xrealloc(onelines->items,
109 onelines->alloc
110 * sizeof(struct path_list_item));
111 }
112
113 onelines->items[onelines->nr].util = NULL;
114 onelines->items[onelines->nr++].path = buffer;
115}
116
117static void read_from_stdin(struct path_list *list)
118{
119 char author[1024], oneline[1024];
120
121 while (fgets(author, sizeof(author), stdin) != NULL) {
122 if (!(author[0] == 'A' || author[0] == 'a') ||
123 prefixcmp(author + 1, "uthor: "))
124 continue;
125 while (fgets(oneline, sizeof(oneline), stdin) &&
126 oneline[0] != '\n')
127 ; /* discard headers */
128 while (fgets(oneline, sizeof(oneline), stdin) &&
129 oneline[0] == '\n')
130 ; /* discard blanks */
131 insert_one_record(list, author + 8, oneline);
132 }
133}
134
135static void get_from_rev(struct rev_info *rev, struct path_list *list)
136{
137 struct commit *commit;
138
139 prepare_revision_walk(rev);
140 while ((commit = get_revision(rev)) != NULL) {
141 const char *author = NULL, *buffer;
142
143 buffer = commit->buffer;
144 while (*buffer && *buffer != '\n') {
145 const char *eol = strchr(buffer, '\n');
146
147 if (eol == NULL)
148 eol = buffer + strlen(buffer);
149 else
150 eol++;
151
152 if (!prefixcmp(buffer, "author "))
153 author = buffer + 7;
154 buffer = eol;
155 }
156 if (!author)
157 die("Missing author: %s",
158 sha1_to_hex(commit->object.sha1));
159 if (*buffer)
160 buffer++;
161 insert_one_record(list, author, !*buffer ? "<none>" : buffer);
162 }
163}
164
165static int parse_uint(char const **arg, int comma)
166{
167 unsigned long ul;
168 int ret;
169 char *endp;
170
171 ul = strtoul(*arg, &endp, 10);
172 if (endp != *arg && *endp && *endp != comma)
173 return -1;
174 ret = (int) ul;
175 if (ret != ul)
176 return -1;
177 *arg = endp;
178 if (**arg)
179 (*arg)++;
180 return ret;
181}
182
183static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
184#define DEFAULT_WRAPLEN 76
185#define DEFAULT_INDENT1 6
186#define DEFAULT_INDENT2 9
187
188static void parse_wrap_args(const char *arg, int *in1, int *in2, int *wrap)
189{
190 arg += 2; /* skip -w */
191
192 *wrap = parse_uint(&arg, ',');
193 if (*wrap < 0)
194 die(wrap_arg_usage);
195 *in1 = parse_uint(&arg, ',');
196 if (*in1 < 0)
197 die(wrap_arg_usage);
198 *in2 = parse_uint(&arg, '\0');
199 if (*in2 < 0)
200 die(wrap_arg_usage);
201
202 if (!*wrap)
203 *wrap = DEFAULT_WRAPLEN;
204 if (!*in1)
205 *in1 = DEFAULT_INDENT1;
206 if (!*in2)
207 *in2 = DEFAULT_INDENT2;
208 if (*wrap &&
209 ((*in1 && *wrap <= *in1) ||
210 (*in2 && *wrap <= *in2)))
211 die(wrap_arg_usage);
212}
213
214int cmd_shortlog(int argc, const char **argv, const char *prefix)
215{
216 struct rev_info rev;
217 struct path_list list = { NULL, 0, 0, 1 };
218 int i, j, sort_by_number = 0, summary = 0;
219 int wrap_lines = 0;
220 int wrap = DEFAULT_WRAPLEN;
221 int in1 = DEFAULT_INDENT1;
222 int in2 = DEFAULT_INDENT2;
223
224 /* since -n is a shadowed rev argument, parse our args first */
225 while (argc > 1) {
226 if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
227 sort_by_number = 1;
228 else if (!strcmp(argv[1], "-s") ||
229 !strcmp(argv[1], "--summary"))
230 summary = 1;
231 else if (!strcmp(argv[1], "-e") ||
232 !strcmp(argv[1], "--email"))
233 email = 1;
234 else if (!prefixcmp(argv[1], "-w")) {
235 wrap_lines = 1;
236 parse_wrap_args(argv[1], &in1, &in2, &wrap);
237 }
238 else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
239 usage(shortlog_usage);
240 else
241 break;
242 argv++;
243 argc--;
244 }
245 init_revisions(&rev, prefix);
246 argc = setup_revisions(argc, argv, &rev, NULL);
247 if (argc > 1)
248 die ("unrecognized argument: %s", argv[1]);
249
250 read_mailmap(&mailmap, ".mailmap", &common_repo_prefix);
251
252 /* assume HEAD if from a tty */
253 if (!rev.pending.nr && isatty(0))
254 add_head_to_pending(&rev);
255 if (rev.pending.nr == 0) {
256 read_from_stdin(&list);
257 }
258 else
259 get_from_rev(&rev, &list);
260
261 if (sort_by_number)
262 qsort(list.items, list.nr, sizeof(struct path_list_item),
263 compare_by_number);
264
265 for (i = 0; i < list.nr; i++) {
266 struct path_list *onelines = list.items[i].util;
267
268 if (summary) {
269 printf("%6d\t%s\n", onelines->nr, list.items[i].path);
270 } else {
271 printf("%s (%d):\n", list.items[i].path, onelines->nr);
272 for (j = onelines->nr - 1; j >= 0; j--) {
273 const char *msg = onelines->items[j].path;
274
275 if (wrap_lines) {
276 int col = print_wrapped_text(msg, in1, in2, wrap);
277 if (col != wrap)
278 putchar('\n');
279 }
280 else
281 printf(" %s\n", msg);
282 }
283 putchar('\n');
284 }
285
286 onelines->strdup_paths = 1;
287 path_list_clear(onelines, 1);
288 free(onelines);
289 list.items[i].util = NULL;
290 }
291
292 list.strdup_paths = 1;
293 path_list_clear(&list, 1);
294 mailmap.strdup_paths = 1;
295 path_list_clear(&mailmap, 1);
296
297 return 0;
298}