add 'git credential' plumbing command
[git/git.git] / builtin / shortlog.c
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1#include "builtin.h"
2#include "cache.h"
3#include "commit.h"
4#include "diff.h"
c455c87c 5#include "string-list.h"
b8ec5923 6#include "revision.h"
3714e7c8 7#include "utf8.h"
7c1c6782 8#include "mailmap.h"
552bcac3 9#include "shortlog.h"
14ec9cbd 10#include "parse-options.h"
b8ec5923 11
14ec9cbd 12static char const * const shortlog_usage[] = {
588c038a 13 "git shortlog [-n] [-s] [-e] [-w] [rev-opts] [--] [<commit-id>... ]",
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14 "",
15 "[rev-opts] are documented in git-rev-list(1)",
16 NULL
17};
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18
19static int compare_by_number(const void *a1, const void *a2)
20{
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21 const struct string_list_item *i1 = a1, *i2 = a2;
22 const struct string_list *l1 = i1->util, *l2 = i2->util;
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23
24 if (l1->nr < l2->nr)
6d6ab610 25 return 1;
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26 else if (l1->nr == l2->nr)
27 return 0;
28 else
6d6ab610 29 return -1;
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30}
31
552bcac3 32static void insert_one_record(struct shortlog *log,
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33 const char *author,
34 const char *oneline)
b8ec5923 35{
552bcac3 36 const char *dot3 = log->common_repo_prefix;
b8ec5923 37 char *buffer, *p;
c455c87c 38 struct string_list_item *item;
1e931cb4 39 char namebuf[1024];
d20d654f 40 char emailbuf[1024];
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41 size_t len;
42 const char *eol;
43 const char *boemail, *eoemail;
cec08717 44 struct strbuf subject = STRBUF_INIT;
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45
46 boemail = strchr(author, '<');
47 if (!boemail)
48 return;
49 eoemail = strchr(boemail, '>');
50 if (!eoemail)
51 return;
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52
53 /* copy author name to namebuf, to support matching on both name and email */
54 memcpy(namebuf, author, boemail - author);
55 len = boemail - author;
eeefa7c9 56 while (len > 0 && isspace(namebuf[len-1]))
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57 len--;
58 namebuf[len] = 0;
59
60 /* copy email name to emailbuf, to allow email replacement as well */
61 memcpy(emailbuf, boemail+1, eoemail - boemail);
62 emailbuf[eoemail - boemail - 1] = 0;
63
64 if (!map_user(&log->mailmap, emailbuf, sizeof(emailbuf), namebuf, sizeof(namebuf))) {
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65 while (author < boemail && isspace(*author))
66 author++;
67 for (len = 0;
68 len < sizeof(namebuf) - 1 && author + len < boemail;
69 len++)
70 namebuf[len] = author[len];
71 while (0 < len && isspace(namebuf[len-1]))
72 len--;
73 namebuf[len] = '\0';
74 }
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75 else
76 len = strlen(namebuf);
77
552bcac3 78 if (log->email) {
4602c17d 79 size_t room = sizeof(namebuf) - len - 1;
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80 int maillen = strlen(emailbuf);
81 snprintf(namebuf + len, room, " <%.*s>", maillen, emailbuf);
4602c17d 82 }
b8ec5923 83
78a395d3 84 item = string_list_insert(&log->list, namebuf);
b8ec5923 85 if (item->util == NULL)
c455c87c 86 item->util = xcalloc(1, sizeof(struct string_list));
b8ec5923 87
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88 /* Skip any leading whitespace, including any blank lines. */
89 while (*oneline && isspace(*oneline))
90 oneline++;
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91 eol = strchr(oneline, '\n');
92 if (!eol)
93 eol = oneline + strlen(oneline);
cc44c765 94 if (!prefixcmp(oneline, "[PATCH")) {
72019cde 95 char *eob = strchr(oneline, ']');
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96 if (eob && (!eol || eob < eol))
97 oneline = eob + 1;
b8ec5923 98 }
1e931cb4 99 while (*oneline && isspace(*oneline) && *oneline != '\n')
b8ec5923 100 oneline++;
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101 format_subject(&subject, oneline, " ");
102 buffer = strbuf_detach(&subject, NULL);
b8ec5923 103
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104 if (dot3) {
105 int dot3len = strlen(dot3);
106 if (dot3len > 5) {
107 while ((p = strstr(buffer, dot3)) != NULL) {
108 int taillen = strlen(p) - dot3len;
109 memcpy(p, "/.../", 5);
110 memmove(p + 5, p + dot3len, taillen + 1);
111 }
112 }
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113 }
114
1d2f80fa 115 string_list_append(item->util, buffer);
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116}
117
552bcac3 118static void read_from_stdin(struct shortlog *log)
b8ec5923 119{
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120 char author[1024], oneline[1024];
121
122 while (fgets(author, sizeof(author), stdin) != NULL) {
123 if (!(author[0] == 'A' || author[0] == 'a') ||
124 prefixcmp(author + 1, "uthor: "))
125 continue;
126 while (fgets(oneline, sizeof(oneline), stdin) &&
127 oneline[0] != '\n')
128 ; /* discard headers */
129 while (fgets(oneline, sizeof(oneline), stdin) &&
130 oneline[0] == '\n')
131 ; /* discard blanks */
552bcac3 132 insert_one_record(log, author + 8, oneline);
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133 }
134}
135
552bcac3 136void shortlog_add_commit(struct shortlog *log, struct commit *commit)
b8ec5923 137{
552bcac3 138 const char *author = NULL, *buffer;
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139 struct strbuf buf = STRBUF_INIT;
140 struct strbuf ufbuf = STRBUF_INIT;
b8ec5923 141
8b8a5374 142 pp_commit_easy(CMIT_FMT_RAW, commit, &buf);
79f7ca06 143 buffer = buf.buf;
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144 while (*buffer && *buffer != '\n') {
145 const char *eol = strchr(buffer, '\n');
b8ec5923 146
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147 if (eol == NULL)
148 eol = buffer + strlen(buffer);
149 else
150 eol++;
b8ec5923 151
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152 if (!prefixcmp(buffer, "author "))
153 author = buffer + 7;
154 buffer = eol;
b8ec5923 155 }
552bcac3 156 if (!author)
ab8b53bb 157 die(_("Missing author: %s"),
552bcac3 158 sha1_to_hex(commit->object.sha1));
b526f8ed 159 if (log->user_format) {
dd2e794a 160 struct pretty_print_context ctx = {0};
6bf13944 161 ctx.fmt = CMIT_FMT_USERFORMAT;
c1977021 162 ctx.abbrev = log->abbrev;
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163 ctx.subject = "";
164 ctx.after_subject = "";
165 ctx.date_mode = DATE_NORMAL;
6bf13944 166 pretty_print_commit(&ctx, commit, &ufbuf);
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167 buffer = ufbuf.buf;
168 } else if (*buffer) {
552bcac3 169 buffer++;
79f7ca06 170 }
552bcac3 171 insert_one_record(log, author, !*buffer ? "<none>" : buffer);
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172 strbuf_release(&ufbuf);
173 strbuf_release(&buf);
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174}
175
176static void get_from_rev(struct rev_info *rev, struct shortlog *log)
177{
178 struct commit *commit;
179
180 if (prepare_revision_walk(rev))
ab8b53bb 181 die(_("revision walk setup failed"));
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182 while ((commit = get_revision(rev)) != NULL)
183 shortlog_add_commit(log, commit);
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184}
185
14ec9cbd 186static int parse_uint(char const **arg, int comma, int defval)
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187{
188 unsigned long ul;
189 int ret;
190 char *endp;
191
192 ul = strtoul(*arg, &endp, 10);
14ec9cbd 193 if (*endp && *endp != comma)
3d711d97 194 return -1;
14ec9cbd 195 if (ul > INT_MAX)
3d711d97 196 return -1;
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197 ret = *arg == endp ? defval : (int)ul;
198 *arg = *endp ? endp + 1 : endp;
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199 return ret;
200}
201
202static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
203#define DEFAULT_WRAPLEN 76
204#define DEFAULT_INDENT1 6
205#define DEFAULT_INDENT2 9
206
14ec9cbd 207static int parse_wrap_args(const struct option *opt, const char *arg, int unset)
3d711d97 208{
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209 struct shortlog *log = opt->value;
210
211 log->wrap_lines = !unset;
212 if (unset)
213 return 0;
214 if (!arg) {
215 log->wrap = DEFAULT_WRAPLEN;
216 log->in1 = DEFAULT_INDENT1;
217 log->in2 = DEFAULT_INDENT2;
218 return 0;
219 }
220
221 log->wrap = parse_uint(&arg, ',', DEFAULT_WRAPLEN);
222 log->in1 = parse_uint(&arg, ',', DEFAULT_INDENT1);
223 log->in2 = parse_uint(&arg, '\0', DEFAULT_INDENT2);
224 if (log->wrap < 0 || log->in1 < 0 || log->in2 < 0)
225 return error(wrap_arg_usage);
226 if (log->wrap &&
227 ((log->in1 && log->wrap <= log->in1) ||
228 (log->in2 && log->wrap <= log->in2)))
229 return error(wrap_arg_usage);
230 return 0;
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231}
232
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233void shortlog_init(struct shortlog *log)
234{
235 memset(log, 0, sizeof(*log));
236
d551a488 237 read_mailmap(&log->mailmap, &log->common_repo_prefix);
552bcac3 238
c455c87c 239 log->list.strdup_strings = 1;
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240 log->wrap = DEFAULT_WRAPLEN;
241 log->in1 = DEFAULT_INDENT1;
242 log->in2 = DEFAULT_INDENT2;
243}
244
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245int cmd_shortlog(int argc, const char **argv, const char *prefix)
246{
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247 static struct shortlog log;
248 static struct rev_info rev;
773b69bf 249 int nongit = !startup_info->have_repository;
552bcac3 250
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251 static const struct option options[] = {
252 OPT_BOOLEAN('n', "numbered", &log.sort_by_number,
253 "sort output according to the number of commits per author"),
254 OPT_BOOLEAN('s', "summary", &log.summary,
255 "Suppress commit descriptions, only provides commit count"),
256 OPT_BOOLEAN('e', "email", &log.email,
257 "Show the email address of each author"),
258 { OPTION_CALLBACK, 'w', NULL, &log, "w[,i1[,i2]]",
259 "Linewrap output", PARSE_OPT_OPTARG, &parse_wrap_args },
260 OPT_END(),
261 };
262
263 struct parse_opt_ctx_t ctx;
264
d551a488 265 git_config(git_default_config, NULL);
552bcac3 266 shortlog_init(&log);
14ec9cbd 267 init_revisions(&rev, prefix);
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268 parse_options_start(&ctx, argc, argv, prefix, options,
269 PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
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270
271 for (;;) {
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272 switch (parse_options_step(&ctx, options, shortlog_usage)) {
273 case PARSE_OPT_HELP:
274 exit(129);
275 case PARSE_OPT_DONE:
276 goto parse_done;
3d711d97 277 }
6b61ec05 278 parse_revision_opt(&rev, &ctx, options, shortlog_usage);
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279 }
280parse_done:
281 argc = parse_options_end(&ctx);
282
283 if (setup_revisions(argc, argv, &rev, NULL) != 1) {
ab8b53bb 284 error(_("unrecognized argument: %s"), argv[1]);
14ec9cbd 285 usage_with_options(shortlog_usage, options);
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286 }
287
b526f8ed 288 log.user_format = rev.commit_format == CMIT_FMT_USERFORMAT;
c1977021 289 log.abbrev = rev.abbrev;
b526f8ed 290
3384a2df 291 /* assume HEAD if from a tty */
abe549e1 292 if (!nongit && !rev.pending.nr && isatty(0))
3384a2df 293 add_head_to_pending(&rev);
0497c620 294 if (rev.pending.nr == 0) {
37314495 295 if (isatty(0))
ab8b53bb 296 fprintf(stderr, _("(reading log message from standard input)\n"));
552bcac3 297 read_from_stdin(&log);
0497c620 298 }
b8ec5923 299 else
552bcac3 300 get_from_rev(&rev, &log);
b8ec5923 301
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302 shortlog_output(&log);
303 return 0;
304}
b8ec5923 305
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306static void add_wrapped_shortlog_msg(struct strbuf *sb, const char *s,
307 const struct shortlog *log)
308{
309 int col = strbuf_add_wrapped_text(sb, s, log->in1, log->in2, log->wrap);
310 if (col != log->wrap)
311 strbuf_addch(sb, '\n');
312}
313
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DB
314void shortlog_output(struct shortlog *log)
315{
316 int i, j;
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317 struct strbuf sb = STRBUF_INIT;
318
552bcac3 319 if (log->sort_by_number)
c455c87c 320 qsort(log->list.items, log->list.nr, sizeof(struct string_list_item),
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DB
321 compare_by_number);
322 for (i = 0; i < log->list.nr; i++) {
c455c87c 323 struct string_list *onelines = log->list.items[i].util;
b8ec5923 324
552bcac3 325 if (log->summary) {
c455c87c 326 printf("%6d\t%s\n", onelines->nr, log->list.items[i].string);
ac60c94d 327 } else {
c455c87c 328 printf("%s (%d):\n", log->list.items[i].string, onelines->nr);
3714e7c8 329 for (j = onelines->nr - 1; j >= 0; j--) {
c455c87c 330 const char *msg = onelines->items[j].string;
3d711d97 331
552bcac3 332 if (log->wrap_lines) {
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333 strbuf_reset(&sb);
334 add_wrapped_shortlog_msg(&sb, msg, log);
335 fwrite(sb.buf, sb.len, 1, stdout);
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JH
336 }
337 else
338 printf(" %s\n", msg);
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339 }
340 putchar('\n');
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341 }
342
c455c87c 343 onelines->strdup_strings = 1;
fe73fc1a 344 string_list_clear(onelines, 0);
b8ec5923 345 free(onelines);
552bcac3 346 log->list.items[i].util = NULL;
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347 }
348
bb96a2c9 349 strbuf_release(&sb);
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350 log->list.strdup_strings = 1;
351 string_list_clear(&log->list, 1);
d20d654f 352 clear_mailmap(&log->mailmap);
b8ec5923 353}