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[thin_shrink] calculate remaps

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This commit is contained in:
Joe Thornber
2020-06-25 10:44:57 +01:00
parent 3f1b776359
commit 259eef9eee
5 changed files with 265 additions and 37 deletions
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42
src/bin/thin_shrink.rs
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@@ -7,33 +7,47 @@ use thinp::file_utils;
fn main() {
let parser = App::new("thin_shrink")
.version(thinp::version::TOOLS_VERSION)
.version(thinp::version::TOOLS_VERSION)
.about("Rewrite xml metadata and move data in an inactive pool.")
.arg(Arg::with_name("INPUT")
.help("Specify thinp metadata xml file")
.required(true)
.long("input")
.value_name("INPUT")
.takes_value(true))
.arg(Arg::with_name("OUTPUT")
.help("Specify output xml file")
.required(true)
.long("output")
.value_name("OUTPUT")
.takes_value(true));
.arg(
Arg::with_name("INPUT")
.help("Specify thinp metadata xml file")
.required(true)
.long("input")
.value_name("INPUT")
.takes_value(true),
)
.arg(
Arg::with_name("OUTPUT")
.help("Specify output xml file")
.required(true)
.long("output")
.value_name("OUTPUT")
.takes_value(true),
)
// FIXME: support various disk units
.arg(
Arg::with_name("SIZE")
.help("Specify new size for the pool (in data blocks)")
.required(true)
.long("nr-blocks")
.value_name("SIZE")
.takes_value(true),
);
let matches = parser.get_matches();
// FIXME: check these look like xml
let input_file = matches.value_of("INPUT").unwrap();
let output_file = matches.value_of("OUTPUT").unwrap();
let size = matches.value_of("SIZE").unwrap().parse::<u64>().unwrap();
if !file_utils::file_exists(input_file) {
eprintln!("Couldn't find input file '{}'.", &input_file);
exit(1);
}
if let Err(reason) = thinp::shrink::toplevel::shrink(&input_file, &output_file) {
if let Err(reason) = thinp::shrink::toplevel::shrink(&input_file, &output_file, size) {
println!("Application error: {}\n", reason);
exit(1);
}