79 lines
2.5 KiB
Rust
79 lines
2.5 KiB
Rust
// This work is based on the implementation by Nikhil Kshirsagar which
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// can be found here:
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// https://github.com/nkshirsagar/thinpool_shrink/blob/split_ranges/thin_shrink.py
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extern crate clap;
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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 crate::commands::utils::*;
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pub fn run(args: &[std::ffi::OsString]) {
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let parser = App::new("thin_shrink")
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.version(crate::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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.short("i")
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.long("input")
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.value_name("FILE")
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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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.short("o")
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.long("output")
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.value_name("FILE")
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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_from(args);
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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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let report = mk_report(false);
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check_input_file(input_file, &report);
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if let Err(reason) =
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crate::shrink::toplevel::shrink(input_file, output_file, data_file, size, do_copy)
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{
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eprintln!("Application error: {}\n", reason);
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exit(1);
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}
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}
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