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add -v, --version options

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This commit is contained in:
Josh Coalson
2002-08-20 03:57:59 +00:00
parent 4dc3507090
commit 3cf909cef2
5 changed files with 59 additions and 5 deletions
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19
src/metaflac/main.c
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@@ -72,6 +72,7 @@ static struct FLAC__share__option long_options_[] = {
{ "add-padding", 1, 0, 0 },
/* major operations */
{ "help", 0, 0, 0 },
{ "version", 0, 0, 0 },
{ "list", 0, 0, 0 },
{ "append", 0, 0, 0 },
{ "remove", 0, 0, 0 },
@@ -188,6 +189,7 @@ typedef struct {
FLAC__bool utf8_convert;
FLAC__bool use_padding;
FLAC__bool show_long_help;
FLAC__bool show_version;
FLAC__bool application_data_format_is_hexdump;
struct {
Operation *operations;
@@ -219,6 +221,7 @@ static void append_new_argument(CommandLineOptions *options, Argument argument);
static Operation *append_major_operation(CommandLineOptions *options, OperationType type);
static Operation *append_shorthand_operation(CommandLineOptions *options, OperationType type);
static Argument *append_argument(CommandLineOptions *options, ArgumentType type);
static void show_version();
static int short_usage(const char *message, ...);
static int long_usage(const char *message, ...);
static char *local_strdup(const char *source);
@@ -286,6 +289,7 @@ void init_options(CommandLineOptions *options)
options->utf8_convert = true;
options->use_padding = true;
options->show_long_help = false;
options->show_version = false;
options->application_data_format_is_hexdump = false;
options->ops.operations = 0;
@@ -329,7 +333,7 @@ FLAC__bool parse_options(int argc, char *argv[], CommandLineOptions *options)
if(options->prefix_with_filename == 2)
options->prefix_with_filename = (argc - FLAC__share__optind > 1);
if(FLAC__share__optind >= argc && !options->show_long_help) {
if(FLAC__share__optind >= argc && !options->show_long_help && !options->show_version) {
fprintf(stderr,"ERROR: you must specify at least one FLAC file;\n");
fprintf(stderr," metaflac cannot be used as a pipe\n");
had_error = true;
@@ -473,6 +477,9 @@ FLAC__bool parse_option(int option_index, const char *option_argument, CommandLi
else if(0 == strcmp(opt, "help")) {
options->show_long_help = true;
}
else if(0 == strcmp(opt, "version")) {
options->show_version = true;
}
else if(0 == strcmp(opt, "list")) {
(void) append_major_operation(options, OP__LIST);
}
@@ -671,6 +678,11 @@ Argument *append_argument(CommandLineOptions *options, ArgumentType type)
return options->args.arguments + (options->args.num_arguments - 1);
}
void show_version()
{
printf("metaflac %s\n", FLAC__VERSION_STRING);
}
static void usage_header(FILE *out)
{
fprintf(out, "==============================================================================\n");
@@ -784,6 +796,8 @@ int long_usage(const char *message, ...)
fprintf(out, " the extra 4 bytes is for the metadata block header.\n");
fprintf(out, "\n");
fprintf(out, "Major operations:\n");
fprintf(out, "--version\n");
fprintf(out, " Show the metaflac version number.\n");
fprintf(out, "--list\n");
fprintf(out, " List the contents of one or more metadata blocks to stdout. By default,\n");
fprintf(out, " all metadata blocks are listed in text format. Use the following options\n");
@@ -1094,6 +1108,9 @@ FLAC__bool do_operations(const CommandLineOptions *options)
if(options->show_long_help) {
long_usage(0);
}
if(options->show_version) {
show_version();
}
else if(options->args.checks.num_major_ops > 0) {
FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
FLAC__ASSERT(options->args.checks.num_major_ops == 1);