The sixth batch
[git.git] / builtin / fmt-merge-msg.c
blob48a8699de728a950053b182fae23e73b14fba6a6
1 #include "builtin.h"
2 #include "config.h"
3 #include "fmt-merge-msg.h"
4 #include "parse-options.h"
6 static const char * const fmt_merge_msg_usage[] = {
7 N_("git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log] [--file <file>]"),
8 NULL
9 };
11 int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix)
13 const char *inpath = NULL;
14 const char *message = NULL;
15 int shortlog_len = -1;
16 struct option options[] = {
17 { OPTION_INTEGER, 0, "log", &shortlog_len, N_("n"),
18 N_("populate log with at most <n> entries from shortlog"),
19 PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN },
20 { OPTION_INTEGER, 0, "summary", &shortlog_len, N_("n"),
21 N_("alias for --log (deprecated)"),
22 PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, NULL,
23 DEFAULT_MERGE_LOG_LEN },
24 OPT_STRING('m', "message", &message, N_("text"),
25 N_("use <text> as start of message")),
26 OPT_FILENAME('F', "file", &inpath, N_("file to read from")),
27 OPT_END()
30 FILE *in = stdin;
31 struct strbuf input = STRBUF_INIT, output = STRBUF_INIT;
32 int ret;
33 struct fmt_merge_msg_opts opts;
35 git_config(fmt_merge_msg_config, NULL);
36 argc = parse_options(argc, argv, prefix, options, fmt_merge_msg_usage,
37 0);
38 if (argc > 0)
39 usage_with_options(fmt_merge_msg_usage, options);
40 if (shortlog_len < 0)
41 shortlog_len = (merge_log_config > 0) ? merge_log_config : 0;
43 if (inpath && strcmp(inpath, "-")) {
44 in = fopen(inpath, "r");
45 if (!in)
46 die_errno("cannot open '%s'", inpath);
49 if (strbuf_read(&input, fileno(in), 0) < 0)
50 die_errno("could not read input file");
52 if (message)
53 strbuf_addstr(&output, message);
55 memset(&opts, 0, sizeof(opts));
56 opts.add_title = !message;
57 opts.credit_people = 1;
58 opts.shortlog_len = shortlog_len;
60 ret = fmt_merge_msg(&input, &output, &opts);
61 if (ret)
62 return ret;
63 write_in_full(STDOUT_FILENO, output.buf, output.len);
64 return 0;