builtin/fmt-merge-msg.c

   1 #define USE_THE_REPOSITORY_VARIABLE
   2 #include "builtin.h"
   3 #include "config.h"
   4 #include "fmt-merge-msg.h"
   5 #include "gettext.h"
   6 #include "parse-options.h"
   7
   8 static const char * const fmt_merge_msg_usage[] = {
   9         N_("git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log] [--file <file>]"),
  10         NULL
  11 };
  12
  13 int cmd_fmt_merge_msg(int argc,
  14                       const char **argv,
  15                       const char *prefix,
  16                       struct repository *repo UNUSED)
  17 {
  18         char *inpath = NULL;
  19         const char *message = NULL;
  20         char *into_name = NULL;
  21         int shortlog_len = -1;
  22         struct option options[] = {
  23                 { OPTION_INTEGER, 0, "log", &shortlog_len, N_("n"),
  24                   N_("populate log with at most <n> entries from shortlog"),
  25                   PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN },
  26                 { OPTION_INTEGER, 0, "summary", &shortlog_len, N_("n"),
  27                   N_("alias for --log (deprecated)"),
  28                   PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, NULL,
  29                   DEFAULT_MERGE_LOG_LEN },
  30                 OPT_STRING('m', "message", &message, N_("text"),
  31                         N_("use <text> as start of message")),
  32                 OPT_STRING(0, "into-name", &into_name, N_("name"),
  33                            N_("use <name> instead of the real target branch")),
  34                 OPT_FILENAME('F', "file", &inpath, N_("file to read from")),
  35                 OPT_END()
  36         };
  37
  38         FILE *in = stdin;
  39         struct strbuf input = STRBUF_INIT, output = STRBUF_INIT;
  40         int ret;
  41         struct fmt_merge_msg_opts opts;
  42
  43         git_config(fmt_merge_msg_config, NULL);
  44         argc = parse_options(argc, argv, prefix, options, fmt_merge_msg_usage,
  45                              0);
  46         if (argc > 0)
  47                 usage_with_options(fmt_merge_msg_usage, options);
  48         if (shortlog_len < 0)
  49                 shortlog_len = (merge_log_config > 0) ? merge_log_config : 0;
  50
  51         if (inpath && strcmp(inpath, "-")) {
  52                 in = fopen(inpath, "r");
  53                 if (!in)
  54                         die_errno("cannot open '%s'", inpath);
  55         }
  56
  57         if (strbuf_read(&input, fileno(in), 0) < 0)
  58                 die_errno("could not read input file");
  59
  60         if (message)
  61                 strbuf_addstr(&output, message);
  62
  63         memset(&opts, 0, sizeof(opts));
  64         opts.add_title = !message;
  65         opts.credit_people = 1;
  66         opts.shortlog_len = shortlog_len;
  67         opts.into_name = into_name;
  68
  69         ret = fmt_merge_msg(&input, &output, &opts);
  70         if (ret)
  71                 return ret;
  72         write_in_full(STDOUT_FILENO, output.buf, output.len);
  73
  74         strbuf_release(&input);
  75         strbuf_release(&output);
  76         free(inpath);
  77         return 0;
  78 }