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         struct strbuf author = STRBUF_INIT;
  17         struct strbuf oneline = STRBUF_INIT;
  18
  19         while (strbuf_getline_lf(&author, stdin) != EOF) {
  20                 const char *v;
  21                 if (!skip_prefix(author.buf, "Author: ", &v) &&
  22                     !skip_prefix(author.buf, "author ", &v))
  23                         continue;
  24                 while (strbuf_getline_lf(&oneline, stdin) != EOF &&
  25                        oneline.len)
  26                         ; /* discard headers */
  27                 while (strbuf_getline_lf(&oneline, stdin) != EOF &&
  28                        !oneline.len)
  29                         ; /* discard blanks */
  30                 shortlog_insert_one_record(log, v, oneline.buf);
  31         }
  32         strbuf_release(&author);
  33         strbuf_release(&oneline);
  34 }
  35
  36 static void get_from_rev(struct rev_info *rev, struct shortlog *log)
  37 {
  38         struct commit *commit;
  39
  40         if (prepare_revision_walk(rev))
  41                 die(_("revision walk setup failed"));
  42         while ((commit = get_revision(rev)) != NULL)
  43                 shortlog_add_commit(log, commit);
  44 }
  45
  46 static int parse_uint(char const **arg, int comma, int defval)
  47 {
  48         unsigned long ul;
  49         int ret;
  50         char *endp;
  51
  52         ul = strtoul(*arg, &endp, 10);
  53         if (*endp && *endp != comma)
  54                 return -1;
  55         if (ul > INT_MAX)
  56                 return -1;
  57         ret = *arg == endp ? defval : (int)ul;
  58         *arg = *endp ? endp + 1 : endp;
  59         return ret;
  60 }
  61
  62 static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
  63
  64 static int parse_wrap_args(const struct option *opt, const char *arg, int unset)
  65 {
  66         struct shortlog *log = opt->value;
  67
  68         log->wrap_lines = !unset;
  69         if (unset)
  70                 return 0;
  71         if (!arg) {
  72                 log->wrap = DEFAULT_WRAPLEN;
  73                 log->in1 = DEFAULT_INDENT1;
  74                 log->in2 = DEFAULT_INDENT2;
  75                 return 0;
  76         }
  77
  78         log->wrap = parse_uint(&arg, ',', DEFAULT_WRAPLEN);
  79         log->in1 = parse_uint(&arg, ',', DEFAULT_INDENT1);
  80         log->in2 = parse_uint(&arg, '\0', DEFAULT_INDENT2);
  81         if (log->wrap < 0 || log->in1 < 0 || log->in2 < 0)
  82                 return error(wrap_arg_usage);
  83         if (log->wrap &&
  84             ((log->in1 && log->wrap <= log->in1) ||
  85              (log->in2 && log->wrap <= log->in2)))
  86                 return error(wrap_arg_usage);
  87         return 0;
  88 }
  89
  90 int cmd_shortlog(int argc, const char **argv, const char *prefix)
  91 {
  92         static struct shortlog log;
  93         static struct rev_info rev;
  94         int nongit = !startup_info->have_repository;
  95
  96         static const struct option options[] = {
  97                 OPT_BOOL('n', "numbered", &log.sort_by_number,
  98                          N_("sort output according to the number of commits per author")),
  99                 OPT_BOOL('s', "summary", &log.summary,
 100                          N_("Suppress commit descriptions, only provides commit count")),
 101                 OPT_BOOL('e', "email", &log.email,
 102                          N_("Show the email address of each author")),
 103                 { OPTION_CALLBACK, 'w', NULL, &log, N_("w[,i1[,i2]]"),
 104                         N_("Linewrap output"), PARSE_OPT_OPTARG, &parse_wrap_args },
 105                 OPT_END(),
 106         };
 107
 108         struct parse_opt_ctx_t ctx;
 109
 110         git_config(git_default_config, NULL);
 111         shortlog_init(&log);
 112         init_revisions(&rev, prefix);
 113         parse_options_start(&ctx, argc, argv, prefix, options,
 114                             PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0);
 115
 116         for (;;) {
 117                 switch (parse_options_step(&ctx, options, shortlog_usage)) {
 118                 case PARSE_OPT_HELP:
 119                         exit(129);
 120                 case PARSE_OPT_DONE:
 121                         goto parse_done;
 122                 }
 123                 parse_revision_opt(&rev, &ctx, options, shortlog_usage);
 124         }
 125 parse_done:
 126         argc = parse_options_end(&ctx);
 127
 128         if (setup_revisions(argc, argv, &rev, NULL) != 1) {
 129                 error(_("unrecognized argument: %s"), argv[1]);
 130                 usage_with_options(shortlog_usage, options);
 131         }
 132
 133         log.user_format = rev.commit_format == CMIT_FMT_USERFORMAT;
 134         log.abbrev = rev.abbrev;
 135
 136         /* assume HEAD if from a tty */
 137         if (!nongit && !rev.pending.nr && isatty(0))
 138                 add_head_to_pending(&rev);
 139         if (rev.pending.nr == 0) {
 140                 if (isatty(0))
 141                         fprintf(stderr, _("(reading log message from standard input)\n"));
 142                 read_from_stdin(&log);
 143         }
 144         else
 145                 get_from_rev(&rev, &log);
 146
 147         shortlog_output(&log);
 148         return 0;
 149 }