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/*
* Builtin "git interpret-trailers"
*
* Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
*
*/
#include "cache.h"
#include "builtin.h"
#include "parse-options.h"
#include "string-list.h"
#include "trailer.h"
static const char * const git_interpret_trailers_usage[] = {
N_("git interpret-trailers [--in-place] [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...]"),
NULL
};
static enum trailer_where where;
static enum trailer_if_exists if_exists;
static enum trailer_if_missing if_missing;
static int option_parse_where(const struct option *opt,
const char *arg, int unset)
{
return trailer_set_where(&where, arg);
}
static int option_parse_if_exists(const struct option *opt,
const char *arg, int unset)
{
return trailer_set_if_exists(&if_exists, arg);
}
static int option_parse_if_missing(const struct option *opt,
const char *arg, int unset)
{
return trailer_set_if_missing(&if_missing, arg);
}
static void new_trailers_clear(struct list_head *trailers)
{
struct list_head *pos, *tmp;
struct new_trailer_item *item;
list_for_each_safe(pos, tmp, trailers) {
item = list_entry(pos, struct new_trailer_item, list);
list_del(pos);
free(item);
}
}
static int option_parse_trailer(const struct option *opt,
const char *arg, int unset)
{
struct list_head *trailers = opt->value;
struct new_trailer_item *item;
if (unset) {
new_trailers_clear(trailers);
return 0;
}
if (!arg)
return -1;
item = xmalloc(sizeof(*item));
item->text = arg;
item->where = where;
item->if_exists = if_exists;
item->if_missing = if_missing;
list_add_tail(&item->list, trailers);
return 0;
}
static int parse_opt_parse(const struct option *opt, const char *arg,
int unset)
{
struct process_trailer_options *v = opt->value;
v->only_trailers = 1;
v->only_input = 1;
v->unfold = 1;
return 0;
}
int cmd_interpret_trailers(int argc, const char **argv, const char *prefix)
{
struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT;
LIST_HEAD(trailers);
struct option options[] = {
OPT_BOOL(0, "in-place", &opts.in_place, N_("edit files in place")),
OPT_BOOL(0, "trim-empty", &opts.trim_empty, N_("trim empty trailers")),
OPT_CALLBACK(0, "where", NULL, N_("action"),
N_("where to place the new trailer"), option_parse_where),
OPT_CALLBACK(0, "if-exists", NULL, N_("action"),
N_("action if trailer already exists"), option_parse_if_exists),
OPT_CALLBACK(0, "if-missing", NULL, N_("action"),
N_("action if trailer is missing"), option_parse_if_missing),
OPT_BOOL(0, "only-trailers", &opts.only_trailers, N_("output only the trailers")),
OPT_BOOL(0, "only-input", &opts.only_input, N_("do not apply config rules")),
OPT_BOOL(0, "unfold", &opts.unfold, N_("join whitespace-continued values")),
{ OPTION_CALLBACK, 0, "parse", &opts, NULL, N_("set parsing options"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, parse_opt_parse },
OPT_CALLBACK(0, "trailer", &trailers, N_("trailer"),
N_("trailer(s) to add"), option_parse_trailer),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options,
git_interpret_trailers_usage, 0);
if (opts.only_input && !list_empty(&trailers))
usage_msg_opt(
_("--trailer with --only-input does not make sense"),
git_interpret_trailers_usage,
options);
if (argc) {
int i;
for (i = 0; i < argc; i++)
process_trailers(argv[i], &opts, &trailers);
} else {
if (opts.in_place)
die(_("no input file given for in-place editing"));
process_trailers(NULL, &opts, &trailers);
}
new_trailers_clear(&trailers);
return 0;
}
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