Use getopts to parse command-line
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vecāks
d5d83ab03e
revīzija
2b8f4a98d3
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@ -1,4 +1,14 @@
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[root]
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name = "nrgrip"
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version = "0.1.0"
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dependencies = [
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"getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "getopts"
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version = "0.2.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
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@ -9,3 +9,4 @@ name = "nrgrip"
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doc = false
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[dependencies]
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getopts = "0.2"
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103
src/main.rs
103
src/main.rs
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@ -24,31 +24,52 @@ use std::env;
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use std::fs::File;
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use std::process;
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extern crate getopts;
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use getopts::Options;
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extern crate nrgrip;
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fn exit_usage(prog_name: &String) {
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println!("Usage:\n\t{} <image.nrg>", prog_name);
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process::exit(1);
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}
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fn main() {
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let mut argv = env::args();
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let args: Vec<String> = env::args().collect();
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let prog_name = &args.first().expect("Can't retrieve program's name");
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let prog_name = argv.next().unwrap_or("nrgrip".to_string());
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let mut opts = Options::new();
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opts.optflag("i", "info",
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"display the image's metadata (default action)");
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opts.optflag("x", "extract",
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"same as --extract-cue --extract-raw");
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opts.optflag("c", "extract-cue",
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"extract cue sheet from the NRG metadata");
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opts.optflag("r", "extract-raw",
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"extract the raw audio tracks");
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opts.optflag("h", "help",
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"print this help message");
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let img_path = argv.next().unwrap_or("".to_string());
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if img_path == "" {
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exit_usage(&prog_name);
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let options = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(err) => panic!(err.to_string()),
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};
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if options.opt_present("help") {
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exit_usage(&prog_name, &opts);
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}
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// Get input NRG image name
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if options.free.len() != 1 {
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// We need exactly one input file!
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fail_usage(&prog_name, &opts);
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}
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let img_path = &options.free[0];
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println!("NRG image path: \"{}\"", img_path);
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// We don't support more than one input file
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if argv.next().is_some() {
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exit_usage(&prog_name);
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}
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// See what actions are to be taken on that file
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let action_cue =
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options.opt_present("extract-cue") || options.opt_present("extract");
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let action_raw =
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options.opt_present("extract-raw") || options.opt_present("extract");
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let action_info =
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options.opt_present("info") || !(action_cue || action_raw);
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// Open the image file
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let fd = File::open(&img_path);
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@ -59,7 +80,7 @@ fn main() {
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}
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let mut fd = fd.unwrap();
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// Read and display the image's metadata
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// Read the image's metadata
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let metadata = nrgrip::metadata::read_nrg_metadata(&mut fd);
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if metadata.is_err() {
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println!("Error reading \"{}\": {}",
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@ -67,20 +88,50 @@ fn main() {
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process::exit(1);
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}
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let metadata = metadata.unwrap();
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println!("\n{}", metadata);
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// Display metadata if requested
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if action_info {
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println!("\n{}", metadata);
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}
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// Read and write the cue sheet
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println!("\nNow extracting cue sheet...");
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if let Err(err) = nrgrip::cue_sheet::write_cue_sheet(&img_path, &metadata) {
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println!("Error writing cue sheet: {}", err.to_string());
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process::exit(1);
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if action_cue {
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println!("\nExtracting cue sheet...");
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if let Err(err) = nrgrip::cue_sheet::write_cue_sheet(&img_path,
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&metadata) {
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println!("Error writing cue sheet: {}", err.to_string());
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process::exit(1);
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}
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println!("OK!");
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}
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// Extract raw audio data
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println!("Now extracting raw audio data...");
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if let Err(err) = nrgrip::raw_audio::extract_nrg_raw_audio(
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&mut fd, &img_path, &metadata) {
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println!("Error extracting raw audio data: {}", err.to_string());
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if action_raw {
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println!("\nExtracting raw audio data...");
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if let Err(err) = nrgrip::raw_audio::extract_nrg_raw_audio(
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&mut fd, &img_path, &metadata) {
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println!("Error extracting raw audio data: {}", err.to_string());
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}
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println!("OK!");
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}
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println!("OK!");
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}
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fn exit_usage(prog_name: &str, opts: &Options) {
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print_usage(prog_name, opts);
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process::exit(0);
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}
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fn fail_usage(prog_name: &str, opts: &Options) {
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print_usage(prog_name, opts);
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process::exit(1);
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}
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fn print_usage(prog_name: &str, opts: &Options) {
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let brief = format!("NRGrip - rip Nero Burning ROM audio images
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Usage:
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{prog} [-icrx] [options] <image.nrg>
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{prog} -h", prog = prog_name);
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print!("{}", opts.usage(&brief));
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}
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@ -105,7 +105,7 @@ impl fmt::Display for NrgMetadata {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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try!(write!(f, "Image size: {} Bytes\n\
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NRG format version: {}\n\
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First chunk offset: {}",
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First NRG chunk offset: {}",
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self.file_size,
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self.nrg_version,
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self.chunk_offset,
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