git/builtin/mailinfo.c

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/*
* Another stupid program, this one parsing the headers of an
* email to figure out authorship and subject
*/
#include "builtin.h"
#include "abspath.h"
#include "environment.h"
#include "gettext.h"
#include "strbuf.h"
#include "mailinfo.h"
#include "parse-options.h"
static const char * const mailinfo_usage[] = {
/* TRANSLATORS: keep <> in "<" mail ">" info. */
N_("git mailinfo [<options>] <msg> <patch> < mail >info"),
NULL,
};
struct metainfo_charset
{
enum {
CHARSET_DEFAULT,
CHARSET_NO_REENCODE,
CHARSET_EXPLICIT,
} policy;
const char *charset;
};
static int parse_opt_explicit_encoding(const struct option *opt,
const char *arg, int unset)
{
struct metainfo_charset *meta_charset = opt->value;
BUG_ON_OPT_NEG(unset);
meta_charset->policy = CHARSET_EXPLICIT;
meta_charset->charset = arg;
return 0;
}
static int parse_opt_quoted_cr(const struct option *opt, const char *arg, int unset)
{
BUG_ON_OPT_NEG(unset);
if (mailinfo_parse_quoted_cr_action(arg, opt->value) != 0)
return error(_("bad action '%s' for '%s'"), arg, "--quoted-cr");
return 0;
}
int cmd_mailinfo(int argc, const char **argv, const char *prefix)
{
struct metainfo_charset meta_charset;
struct mailinfo mi;
int status;
char *msgfile, *patchfile;
struct option options[] = {
OPT_BOOL('k', NULL, &mi.keep_subject, N_("keep subject")),
OPT_BOOL('b', NULL, &mi.keep_non_patch_brackets_in_subject,
N_("keep non patch brackets in subject")),
OPT_BOOL('m', "message-id", &mi.add_message_id,
N_("copy Message-ID to the end of commit message")),
OPT_SET_INT_F('u', NULL, &meta_charset.policy,
N_("re-code metadata to i18n.commitEncoding"),
CHARSET_DEFAULT, PARSE_OPT_NONEG),
OPT_SET_INT_F('n', NULL, &meta_charset.policy,
N_("disable charset re-coding of metadata"),
CHARSET_NO_REENCODE, PARSE_OPT_NONEG),
OPT_CALLBACK_F(0, "encoding", &meta_charset, N_("encoding"),
N_("re-code metadata to this encoding"),
PARSE_OPT_NONEG, parse_opt_explicit_encoding),
OPT_BOOL(0, "scissors", &mi.use_scissors, N_("use scissors")),
OPT_CALLBACK_F(0, "quoted-cr", &mi.quoted_cr, N_("<action>"),
N_("action when quoted CR is found"),
PARSE_OPT_NONEG, parse_opt_quoted_cr),
OPT_HIDDEN_BOOL(0, "inbody-headers", &mi.use_inbody_headers,
N_("use headers in message's body")),
OPT_END()
};
setup_mailinfo(&mi);
meta_charset.policy = CHARSET_DEFAULT;
argc = parse_options(argc, argv, prefix, options, mailinfo_usage, 0);
if (argc != 2)
usage_with_options(mailinfo_usage, options);
switch (meta_charset.policy) {
case CHARSET_DEFAULT:
mi.metainfo_charset = get_commit_output_encoding();
break;
case CHARSET_NO_REENCODE:
mi.metainfo_charset = NULL;
break;
case CHARSET_EXPLICIT:
break;
default:
BUG("invalid meta_charset.policy");
}
mi.input = stdin;
mi.output = stdout;
msgfile = prefix_filename(prefix, argv[0]);
patchfile = prefix_filename(prefix, argv[1]);
status = !!mailinfo(&mi, msgfile, patchfile);
clear_mailinfo(&mi);
free(msgfile);
free(patchfile);
return status;
}