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git/builtin/stripspace.c

65 lines
1.5 KiB

#include "builtin.h"
#include "cache.h"
#include "config.h"
#include "parse-options.h"
#include "strbuf.h"
static void comment_lines(struct strbuf *buf)
{
char *msg;
size_t len;
msg = strbuf_detach(buf, &len);
strbuf_add_commented_lines(buf, msg, len);
free(msg);
}
static const char * const stripspace_usage[] = {
"git stripspace [-s | --strip-comments]",
"git stripspace [-c | --comment-lines]",
NULL
};
enum stripspace_mode {
STRIP_DEFAULT = 0,
STRIP_COMMENTS,
COMMENT_LINES
};
int cmd_stripspace(int argc, const char **argv, const char *prefix)
{
struct strbuf buf = STRBUF_INIT;
enum stripspace_mode mode = STRIP_DEFAULT;
int nongit;
const struct option options[] = {
OPT_CMDMODE('s', "strip-comments", &mode,
N_("skip and remove all lines starting with comment character"),
STRIP_COMMENTS),
OPT_CMDMODE('c', "comment-lines", &mode,
N_("prepend comment character and space to each line"),
COMMENT_LINES),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, stripspace_usage, 0);
if (argc)
usage_with_options(stripspace_usage, options);
if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) {
setup_git_directory_gently(&nongit);
git_config(git_default_config, NULL);
}
if (strbuf_read(&buf, 0, 1024) < 0)
die_errno("could not read the input");
if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS)
strbuf_stripspace(&buf, mode == STRIP_COMMENTS);
else
comment_lines(&buf);
write_or_die(1, buf.buf, buf.len);
strbuf_release(&buf);
return 0;
}