75 lines
2.3 KiB
Rust
75 lines
2.3 KiB
Rust
extern crate clap;
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extern crate thinp;
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use clap::{App, Arg};
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use std::path::Path;
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use std::process::exit;
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use thinp::file_utils;
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fn main() {
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let parser = App::new("thin_shrink")
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.version(thinp::version::TOOLS_VERSION)
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.about("Rewrite xml metadata and move data in an inactive pool.")
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.arg(
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Arg::with_name("INPUT")
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.help("Specify thinp metadata xml file")
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.required(true)
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.long("input")
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.value_name("INPUT")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("OUTPUT")
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.help("Specify output xml file")
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.required(true)
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.long("output")
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.value_name("OUTPUT")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("DATA")
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.help("Specify pool data device where data will be moved")
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.required(true)
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.long("data")
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.value_name("DATA")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("NOCOPY")
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.help("Skip the copying of data, useful for benchmarking")
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.required(false)
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.long("no-copy")
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.value_name("NOCOPY")
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.takes_value(false),
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)
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.arg(
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Arg::with_name("SIZE")
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.help("Specify new size for the pool (in data blocks)")
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.required(true)
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.long("nr-blocks")
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.value_name("SIZE")
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.takes_value(true),
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);
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let matches = parser.get_matches();
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// FIXME: check these look like xml
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let input_file = Path::new(matches.value_of("INPUT").unwrap());
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let output_file = Path::new(matches.value_of("OUTPUT").unwrap());
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let size = matches.value_of("SIZE").unwrap().parse::<u64>().unwrap();
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let data_file = Path::new(matches.value_of("DATA").unwrap());
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let do_copy = !matches.is_present("NOCOPY");
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if !file_utils::file_exists(input_file) {
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eprintln!("Couldn't find input file '{}'.", input_file.display());
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exit(1);
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}
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if let Err(reason) =
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thinp::shrink::toplevel::shrink(&input_file, &output_file, &data_file, size, do_copy)
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{
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println!("Application error: {}\n", reason);
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exit(1);
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}
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}
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