builtin/mailinfo.c

   1 /*
   2  * Another stupid program, this one parsing the headers of an
   3  * email to figure out authorship and subject
   4  */
   5 #include "cache.h"
   6 #include "builtin.h"
   7 #include "utf8.h"
   8 #include "strbuf.h"
   9 #include "mailinfo.h"
  10
  11 static const char mailinfo_usage[] =
  12         "git mailinfo [-k | -b] [-m | --message-id] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] <msg> <patch> < mail >info";
  13
  14 int cmd_mailinfo(int argc, const char **argv, const char *prefix)
  15 {
  16         const char *def_charset;
  17         struct mailinfo mi;
  18         int status;
  19         char *msgfile, *patchfile;
  20
  21         setup_mailinfo(&mi);
  22
  23         def_charset = get_commit_output_encoding();
  24         mi.metainfo_charset = def_charset;
  25
  26         while (1 < argc && argv[1][0] == '-') {
  27                 if (!strcmp(argv[1], "-k"))
  28                         mi.keep_subject = 1;
  29                 else if (!strcmp(argv[1], "-b"))
  30                         mi.keep_non_patch_brackets_in_subject = 1;
  31                 else if (!strcmp(argv[1], "-m") || !strcmp(argv[1], "--message-id"))
  32                         mi.add_message_id = 1;
  33                 else if (!strcmp(argv[1], "-u"))
  34                         mi.metainfo_charset = def_charset;
  35                 else if (!strcmp(argv[1], "-n"))
  36                         mi.metainfo_charset = NULL;
  37                 else if (starts_with(argv[1], "--encoding="))
  38                         mi.metainfo_charset = argv[1] + 11;
  39                 else if (!strcmp(argv[1], "--scissors"))
  40                         mi.use_scissors = 1;
  41                 else if (!strcmp(argv[1], "--no-scissors"))
  42                         mi.use_scissors = 0;
  43                 else if (!strcmp(argv[1], "--no-inbody-headers"))
  44                         mi.use_inbody_headers = 0;
  45                 else
  46                         usage(mailinfo_usage);
  47                 argc--; argv++;
  48         }
  49
  50         if (argc != 3)
  51                 usage(mailinfo_usage);
  52
  53         mi.input = stdin;
  54         mi.output = stdout;
  55
  56         msgfile = prefix_filename(prefix, argv[1]);
  57         patchfile = prefix_filename(prefix, argv[2]);
  58
  59         status = !!mailinfo(&mi, msgfile, patchfile);
  60         clear_mailinfo(&mi);
  61
  62         free(msgfile);
  63         free(patchfile);
  64         return status;
  65 }