builtin / shortlog.con commit Merge branch 'jc/color-diff-doc' into maint-1.8.1 (82b955c)
   1#include "builtin.h"
   2#include "cache.h"
   3#include "commit.h"
   4#include "diff.h"
   5#include "string-list.h"
   6#include "revision.h"
   7#include "utf8.h"
   8#include "mailmap.h"
   9#include "shortlog.h"
  10#include "parse-options.h"
  11
  12static char const * const shortlog_usage[] = {
  13        N_("git shortlog [-n] [-s] [-e] [-w] [rev-opts] [--] [<commit-id>... ]"),
  14        "",
  15        N_("[rev-opts] are documented in git-rev-list(1)"),
  16        NULL
  17};
  18
  19static int compare_by_number(const void *a1, const void *a2)
  20{
  21        const struct string_list_item *i1 = a1, *i2 = a2;
  22        const struct string_list *l1 = i1->util, *l2 = i2->util;
  23
  24        if (l1->nr < l2->nr)
  25                return 1;
  26        else if (l1->nr == l2->nr)
  27                return 0;
  28        else
  29                return -1;
  30}
  31
  32static void insert_one_record(struct shortlog *log,
  33                              const char *author,
  34                              const char *oneline)
  35{
  36        const char *dot3 = log->common_repo_prefix;
  37        char *buffer, *p;
  38        struct string_list_item *item;
  39        char namebuf[1024];
  40        char emailbuf[1024];
  41        size_t len;
  42        const char *eol;
  43        const char *boemail, *eoemail;
  44        struct strbuf subject = STRBUF_INIT;
  45
  46        boemail = strchr(author, '<');
  47        if (!boemail)
  48                return;
  49        eoemail = strchr(boemail, '>');
  50        if (!eoemail)
  51                return;
  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;
  56        while (len > 0 && isspace(namebuf[len-1]))
  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))) {
  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        }
  75        else
  76                len = strlen(namebuf);
  77
  78        if (log->email) {
  79                size_t room = sizeof(namebuf) - len - 1;
  80                int maillen = strlen(emailbuf);
  81                snprintf(namebuf + len, room, " <%.*s>", maillen, emailbuf);
  82        }
  83
  84        item = string_list_insert(&log->list, namebuf);
  85        if (item->util == NULL)
  86                item->util = xcalloc(1, sizeof(struct string_list));
  87
  88        /* Skip any leading whitespace, including any blank lines. */
  89        while (*oneline && isspace(*oneline))
  90                oneline++;
  91        eol = strchr(oneline, '\n');
  92        if (!eol)
  93                eol = oneline + strlen(oneline);
  94        if (!prefixcmp(oneline, "[PATCH")) {
  95                char *eob = strchr(oneline, ']');
  96                if (eob && (!eol || eob < eol))
  97                        oneline = eob + 1;
  98        }
  99        while (*oneline && isspace(*oneline) && *oneline != '\n')
 100                oneline++;
 101        format_subject(&subject, oneline, " ");
 102        buffer = strbuf_detach(&subject, NULL);
 103
 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                }
 113        }
 114
 115        string_list_append(item->util, buffer);
 116}
 117
 118static void read_from_stdin(struct shortlog *log)
 119{
 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 */
 132                insert_one_record(log, author + 8, oneline);
 133        }
 134}
 135
 136void shortlog_add_commit(struct shortlog *log, struct commit *commit)
 137{
 138        const char *author = NULL, *buffer;
 139        struct strbuf buf = STRBUF_INIT;
 140        struct strbuf ufbuf = STRBUF_INIT;
 141
 142        pp_commit_easy(CMIT_FMT_RAW, commit, &buf);
 143        buffer = buf.buf;
 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 (log->user_format) {
 160                struct pretty_print_context ctx = {0};
 161                ctx.fmt = CMIT_FMT_USERFORMAT;
 162                ctx.abbrev = log->abbrev;
 163                ctx.subject = "";
 164                ctx.after_subject = "";
 165                ctx.date_mode = DATE_NORMAL;
 166                pretty_print_commit(&ctx, commit, &ufbuf);
 167                buffer = ufbuf.buf;
 168        } else if (*buffer) {
 169                buffer++;
 170        }
 171        insert_one_record(log, author, !*buffer ? "<none>" : buffer);
 172        strbuf_release(&ufbuf);
 173        strbuf_release(&buf);
 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))
 181                die(_("revision walk setup failed"));
 182        while ((commit = get_revision(rev)) != NULL)
 183                shortlog_add_commit(log, commit);
 184}
 185
 186static int parse_uint(char const **arg, int comma, int defval)
 187{
 188        unsigned long ul;
 189        int ret;
 190        char *endp;
 191
 192        ul = strtoul(*arg, &endp, 10);
 193        if (*endp && *endp != comma)
 194                return -1;
 195        if (ul > INT_MAX)
 196                return -1;
 197        ret = *arg == endp ? defval : (int)ul;
 198        *arg = *endp ? endp + 1 : endp;
 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
 207static int parse_wrap_args(const struct option *opt, const char *arg, int unset)
 208{
 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;
 231}
 232
 233void shortlog_init(struct shortlog *log)
 234{
 235        memset(log, 0, sizeof(*log));
 236
 237        read_mailmap(&log->mailmap, &log->common_repo_prefix);
 238
 239        log->list.strdup_strings = 1;
 240        log->wrap = DEFAULT_WRAPLEN;
 241        log->in1 = DEFAULT_INDENT1;
 242        log->in2 = DEFAULT_INDENT2;
 243}
 244
 245int cmd_shortlog(int argc, const char **argv, const char *prefix)
 246{
 247        static struct shortlog log;
 248        static struct rev_info rev;
 249        int nongit = !startup_info->have_repository;
 250
 251        static const struct option options[] = {
 252                OPT_BOOLEAN('n', "numbered", &log.sort_by_number,
 253                            N_("sort output according to the number of commits per author")),
 254                OPT_BOOLEAN('s', "summary", &log.summary,
 255                            N_("Suppress commit descriptions, only provides commit count")),
 256                OPT_BOOLEAN('e', "email", &log.email,
 257                            N_("Show the email address of each author")),
 258                { OPTION_CALLBACK, 'w', NULL, &log, N_("w[,i1[,i2]]"),
 259                        N_("Linewrap output"), PARSE_OPT_OPTARG, &parse_wrap_args },
 260                OPT_END(),
 261        };
 262
 263        struct parse_opt_ctx_t ctx;
 264
 265        git_config(git_default_config, NULL);
 266        shortlog_init(&log);
 267        init_revisions(&rev, prefix);
 268        parse_options_start(&ctx, argc, argv, prefix, options,
 269                            PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
 270
 271        for (;;) {
 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;
 277                }
 278                parse_revision_opt(&rev, &ctx, options, shortlog_usage);
 279        }
 280parse_done:
 281        argc = parse_options_end(&ctx);
 282
 283        if (setup_revisions(argc, argv, &rev, NULL) != 1) {
 284                error(_("unrecognized argument: %s"), argv[1]);
 285                usage_with_options(shortlog_usage, options);
 286        }
 287
 288        log.user_format = rev.commit_format == CMIT_FMT_USERFORMAT;
 289        log.abbrev = rev.abbrev;
 290
 291        /* assume HEAD if from a tty */
 292        if (!nongit && !rev.pending.nr && isatty(0))
 293                add_head_to_pending(&rev);
 294        if (rev.pending.nr == 0) {
 295                if (isatty(0))
 296                        fprintf(stderr, _("(reading log message from standard input)\n"));
 297                read_from_stdin(&log);
 298        }
 299        else
 300                get_from_rev(&rev, &log);
 301
 302        shortlog_output(&log);
 303        return 0;
 304}
 305
 306static void add_wrapped_shortlog_msg(struct strbuf *sb, const char *s,
 307                                     const struct shortlog *log)
 308{
 309        strbuf_add_wrapped_text(sb, s, log->in1, log->in2, log->wrap);
 310        strbuf_addch(sb, '\n');
 311}
 312
 313void shortlog_output(struct shortlog *log)
 314{
 315        int i, j;
 316        struct strbuf sb = STRBUF_INIT;
 317
 318        if (log->sort_by_number)
 319                qsort(log->list.items, log->list.nr, sizeof(struct string_list_item),
 320                        compare_by_number);
 321        for (i = 0; i < log->list.nr; i++) {
 322                struct string_list *onelines = log->list.items[i].util;
 323
 324                if (log->summary) {
 325                        printf("%6d\t%s\n", onelines->nr, log->list.items[i].string);
 326                } else {
 327                        printf("%s (%d):\n", log->list.items[i].string, onelines->nr);
 328                        for (j = onelines->nr - 1; j >= 0; j--) {
 329                                const char *msg = onelines->items[j].string;
 330
 331                                if (log->wrap_lines) {
 332                                        strbuf_reset(&sb);
 333                                        add_wrapped_shortlog_msg(&sb, msg, log);
 334                                        fwrite(sb.buf, sb.len, 1, stdout);
 335                                }
 336                                else
 337                                        printf("      %s\n", msg);
 338                        }
 339                        putchar('\n');
 340                }
 341
 342                onelines->strdup_strings = 1;
 343                string_list_clear(onelines, 0);
 344                free(onelines);
 345                log->list.items[i].util = NULL;
 346        }
 347
 348        strbuf_release(&sb);
 349        log->list.strdup_strings = 1;
 350        string_list_clear(&log->list, 1);
 351        clear_mailmap(&log->mailmap);
 352}