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

96 lines
2.7 KiB
Rust
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extern crate clap;
extern crate thinp;
use atty::Stream;
use clap::{App, Arg};
use std::path::Path;
use std::process;
use std::process::exit;
use std::sync::Arc;
use thinp::file_utils;
use thinp::report::*;
use thinp::thin::dump::{dump, ThinDumpOptions};
fn main() {
let parser = App::new("thin_dump")
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.version(thinp::version::tools_version())
.about("Dump thin-provisioning metadata to stdout in XML format")
.arg(
Arg::with_name("QUIET")
.help("Suppress output messages, return only exit code.")
.short("q")
.long("quiet"),
)
.arg(
Arg::with_name("REPAIR")
.help("Repair the metadata whilst dumping it")
.short("r")
.long("repair"),
)
.arg(
Arg::with_name("SKIP_MAPPINGS")
.help("Do not dump the mappings")
.long("skip-mappings"),
)
.arg(
Arg::with_name("SYNC_IO")
.help("Force use of synchronous io")
.long("sync-io"),
)
.arg(
Arg::with_name("METADATA_SNAPSHOT")
.help("Access the metadata snapshot on a live pool")
.short("m")
.long("metadata-snapshot")
.value_name("METADATA_SNAPSHOT"),
)
.arg(
Arg::with_name("OUTPUT")
.help("Specify the output file rather than stdout")
.short("o")
.long("output")
.value_name("OUTPUT"),
)
.arg(
Arg::with_name("INPUT")
.help("Specify the input device to dump")
.required(true)
.index(1),
);
let matches = parser.get_matches();
let input_file = Path::new(matches.value_of("INPUT").unwrap());
let output_file = if matches.is_present("OUTPUT") {
Some(Path::new(matches.value_of("OUTPUT").unwrap()))
} else {
None
};
if !file_utils::file_exists(input_file) {
eprintln!("Couldn't find input file '{:?}'.", &input_file);
exit(1);
}
let report;
if matches.is_present("QUIET") {
report = std::sync::Arc::new(mk_quiet_report());
} else if atty::is(Stream::Stdout) {
report = std::sync::Arc::new(mk_progress_bar_report());
} else {
report = Arc::new(mk_simple_report());
}
let opts = ThinDumpOptions {
input: input_file,
output: output_file,
async_io: !matches.is_present("SYNC_IO"),
report,
};
if let Err(reason) = dump(opts) {
println!("{}", reason);
process::exit(1);
}
}