git.oblomov.eu Git - git/blob - builtin/shortlog.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "commit.h"
   4 #include "string-list.h"
   5 #include "revision.h"
   6 #include "shortlog.h"
   7 #include "parse-options.h"
   8
   9 static char const * const shortlog_usage[] = {
  10         N_("git shortlog [<options>] [<revision range>] [[--] [<path>...]]"),
  11         NULL
  12 };
  13
  14 static void read_from_stdin(struct shortlog *log)
  15 {
  16         char author[1024], oneline[1024];
  17
  18         while (fgets(author, sizeof(author), stdin) != NULL) {
  19                 if (!(author[0] == 'A' || author[0] == 'a') ||
  20                     prefixcmp(author + 1, "uthor: "))
  21                         continue;
  22                 while (fgets(oneline, sizeof(oneline), stdin) &&
  23                        oneline[0] != '\n')
  24                         ; /* discard headers */
  25                 while (fgets(oneline, sizeof(oneline), stdin) &&
  26                        oneline[0] == '\n')
  27                         ; /* discard blanks */
  28                 shortlog_insert_one_record(log, author + 8, oneline);
  29         }
  30 }
  31
  32 void shortlog_add_commit(struct shortlog *log, struct commit *commit)
  33 {
  34         const char *author = NULL, *buffer;
  35         struct strbuf buf = STRBUF_INIT;
  36         struct strbuf ufbuf = STRBUF_INIT;
  37
  38         pp_commit_easy(CMIT_FMT_RAW, commit, &buf);
  39         buffer = buf.buf;
  40         while (*buffer && *buffer != '\n') {
  41                 const char *eol = strchr(buffer, '\n');
  42
  43                 if (eol == NULL)
  44                         eol = buffer + strlen(buffer);
  45                 else
  46                         eol++;
  47
  48                 if (!prefixcmp(buffer, "author "))
  49                         author = buffer + 7;
  50                 buffer = eol;
  51         }
  52         if (!author) {
  53                 warning(_("Missing author: %s"),
  54                     sha1_to_hex(commit->object.sha1));
  55                 return;
  56         }
  57         if (log->user_format) {
  58                 struct pretty_print_context ctx = {0};
  59                 ctx.fmt = CMIT_FMT_USERFORMAT;
  60                 ctx.abbrev = log->abbrev;
  61                 ctx.subject = "";
  62                 ctx.after_subject = "";
  63                 ctx.date_mode = DATE_NORMAL;
  64                 ctx.output_encoding = get_log_output_encoding();
  65                 pretty_print_commit(&ctx, commit, &ufbuf);
  66                 buffer = ufbuf.buf;
  67         } else if (*buffer) {
  68                 buffer++;
  69         }
  70         insert_one_record(log, author, !*buffer ? "<none>" : buffer);
  71         strbuf_release(&ufbuf);
  72         strbuf_release(&buf);
  73 }
  74
  75 static void get_from_rev(struct rev_info *rev, struct shortlog *log)
  76 {
  77         struct commit *commit;
  78
  79         if (prepare_revision_walk(rev))
  80                 die(_("revision walk setup failed"));
  81         while ((commit = get_revision(rev)) != NULL)
  82                 shortlog_add_commit(log, commit);
  83 }
  84
  85 static int parse_uint(char const **arg, int comma, int defval)
  86 {
  87         unsigned long ul;
  88         int ret;
  89         char *endp;
  90
  91         ul = strtoul(*arg, &endp, 10);
  92         if (*endp && *endp != comma)
  93                 return -1;
  94         if (ul > INT_MAX)
  95                 return -1;
  96         ret = *arg == endp ? defval : (int)ul;
  97         *arg = *endp ? endp + 1 : endp;
  98         return ret;
  99 }
 100
 101 static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
 102
 103 static int parse_wrap_args(const struct option *opt, const char *arg, int unset)
 104 {
 105         struct shortlog *log = opt->value;
 106
 107         log->wrap_lines = !unset;
 108         if (unset)
 109                 return 0;
 110         if (!arg) {
 111                 log->wrap = DEFAULT_WRAPLEN;
 112                 log->in1 = DEFAULT_INDENT1;
 113                 log->in2 = DEFAULT_INDENT2;
 114                 return 0;
 115         }
 116
 117         log->wrap = parse_uint(&arg, ',', DEFAULT_WRAPLEN);
 118         log->in1 = parse_uint(&arg, ',', DEFAULT_INDENT1);
 119         log->in2 = parse_uint(&arg, '\0', DEFAULT_INDENT2);
 120         if (log->wrap < 0 || log->in1 < 0 || log->in2 < 0)
 121                 return error(wrap_arg_usage);
 122         if (log->wrap &&
 123             ((log->in1 && log->wrap <= log->in1) ||
 124              (log->in2 && log->wrap <= log->in2)))
 125                 return error(wrap_arg_usage);
 126         return 0;
 127 }
 128
 129 int cmd_shortlog(int argc, const char **argv, const char *prefix)
 130 {
 131         static struct shortlog log;
 132         static struct rev_info rev;
 133         int nongit = !startup_info->have_repository;
 134
 135         static const struct option options[] = {
 136                 OPT_BOOL('n', "numbered", &log.sort_by_number,
 137                          N_("sort output according to the number of commits per author")),
 138                 OPT_BOOL('s', "summary", &log.summary,
 139                          N_("Suppress commit descriptions, only provides commit count")),
 140                 OPT_BOOL('e', "email", &log.email,
 141                          N_("Show the email address of each author")),
 142                 { OPTION_CALLBACK, 'w', NULL, &log, N_("w[,i1[,i2]]"),
 143                         N_("Linewrap output"), PARSE_OPT_OPTARG, &parse_wrap_args },
 144                 OPT_END(),
 145         };
 146
 147         struct parse_opt_ctx_t ctx;
 148
 149         git_config(git_default_config, NULL);
 150         shortlog_init(&log);
 151         init_revisions(&rev, prefix);
 152         parse_options_start(&ctx, argc, argv, prefix, options,
 153                             PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
 154
 155         for (;;) {
 156                 switch (parse_options_step(&ctx, options, shortlog_usage)) {
 157                 case PARSE_OPT_HELP:
 158                         exit(129);
 159                 case PARSE_OPT_DONE:
 160                         goto parse_done;
 161                 }
 162                 parse_revision_opt(&rev, &ctx, options, shortlog_usage);
 163         }
 164 parse_done:
 165         argc = parse_options_end(&ctx);
 166
 167         if (setup_revisions(argc, argv, &rev, NULL) != 1) {
 168                 error(_("unrecognized argument: %s"), argv[1]);
 169                 usage_with_options(shortlog_usage, options);
 170         }
 171
 172         log.user_format = rev.commit_format == CMIT_FMT_USERFORMAT;
 173         log.abbrev = rev.abbrev;
 174
 175         /* assume HEAD if from a tty */
 176         if (!nongit && !rev.pending.nr && isatty(0))
 177                 add_head_to_pending(&rev);
 178         if (rev.pending.nr == 0) {
 179                 if (isatty(0))
 180                         fprintf(stderr, _("(reading log message from standard input)\n"));
 181                 read_from_stdin(&log);
 182         }
 183         else
 184                 get_from_rev(&rev, &log);
 185
 186         shortlog_output(&log);
 187         return 0;
 188 }