thin-provisioning-tools/src/bin/thin_metadata_unpack.rs

46 lines
1.3 KiB
Rust

extern crate clap;
extern crate thinp;
use clap::{App, Arg};
use std::path::Path;
use std::process;
use thinp::file_utils;
use std::process::exit;
fn main() {
let parser = App::new("thin_metadata_unpack")
.version(thinp::version::TOOLS_VERSION)
.about("Unpack a compressed file of thin metadata.")
.arg(
Arg::with_name("INPUT")
.help("Specify thinp metadata binary device/file")
.required(true)
.short("i")
.value_name("DEV")
.takes_value(true),
)
.arg(
Arg::with_name("OUTPUT")
.help("Specify packed output file")
.required(true)
.short("o")
.value_name("FILE")
.takes_value(true),
);
let matches = parser.get_matches();
let input_file = Path::new(matches.value_of("INPUT").unwrap());
let output_file = Path::new(matches.value_of("OUTPUT").unwrap());
if !file_utils::file_exists(input_file) {
eprintln!("Couldn't find input file '{}'.", &input_file.display());
exit(1);
}
if let Err(reason) = thinp::pack::toplevel::unpack(&input_file, &output_file) {
println!("Application error: {}", reason);
process::exit(1);
}
}