Andrew's git - gitweb.git/blob - builtin/stripspace.c

   1#include "builtin.h"
   2#include "cache.h"
   3#include "parse-options.h"
   4#include "strbuf.h"
   5
   6static void comment_lines(struct strbuf *buf)
   7{
   8        char *msg;
   9        size_t len;
  10
  11        msg = strbuf_detach(buf, &len);
  12        strbuf_add_commented_lines(buf, msg, len);
  13        free(msg);
  14}
  15
  16static const char * const stripspace_usage[] = {
  17        N_("git stripspace [-s | --strip-comments]"),
  18        N_("git stripspace [-c | --comment-lines]"),
  19        NULL
  20};
  21
  22enum stripspace_mode {
  23        STRIP_DEFAULT = 0,
  24        STRIP_COMMENTS,
  25        COMMENT_LINES
  26};
  27
  28int cmd_stripspace(int argc, const char **argv, const char *prefix)
  29{
  30        struct strbuf buf = STRBUF_INIT;
  31        enum stripspace_mode mode = STRIP_DEFAULT;
  32
  33        const struct option options[] = {
  34                OPT_CMDMODE('s', "strip-comments", &mode,
  35                            N_("skip and remove all lines starting with comment character"),
  36                            STRIP_COMMENTS),
  37                OPT_CMDMODE('c', "comment-lines", &mode,
  38                            N_("prepend comment character and space to each line"),
  39                            COMMENT_LINES),
  40                OPT_END()
  41        };
  42
  43        argc = parse_options(argc, argv, prefix, options, stripspace_usage, 0);
  44        if (argc)
  45                usage_with_options(stripspace_usage, options);
  46
  47        if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) {
  48                setup_git_directory_gently(NULL);
  49                git_config(git_default_config, NULL);
  50        }
  51
  52        if (strbuf_read(&buf, 0, 1024) < 0)
  53                die_errno("could not read the input");
  54
  55        if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS)
  56                strbuf_stripspace(&buf, mode == STRIP_COMMENTS);
  57        else
  58                comment_lines(&buf);
  59
  60        write_or_die(1, buf.buf, buf.len);
  61        strbuf_release(&buf);
  62        return 0;
  63}