59 lines
1.9 KiB
Rust
59 lines
1.9 KiB
Rust
use super::Cmd;
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use clap::{Arg, ArgAction, Command};
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use std::{error::Error, fs::OpenOptions};
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#[derive(Debug)]
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pub struct Sync;
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impl Cmd for Sync {
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fn cli(&self) -> clap::Command {
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Command::new("sync")
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.about("force completion of pending disk writes (flush cache)")
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.author("Nathan Fisher")
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.version(env!("CARGO_PKG_VERSION"))
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.args([
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Arg::new("data")
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.short('d')
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.long("data")
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.help("sync only file data, no unneeded metadata")
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.conflicts_with("fs")
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.action(ArgAction::SetTrue),
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Arg::new("fs")
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.short('f')
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.long("file-system")
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.help("sync the file systems that contain the files")
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.action(ArgAction::SetTrue),
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Arg::new("FILE")
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.help(
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"If one or more files are specified, sync only them, or \
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their containing file systems.",
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)
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.num_args(0..),
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])
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}
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fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
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if let Some(files) = matches.get_many::<String>("FILE") {
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for f in files {
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let mut opts = OpenOptions::new();
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let opts = opts.read(true).write(true);
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let fd = opts.open(f)?;
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if matches.get_flag("data") {
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unistd::fdatasync(&fd)?;
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} else if matches.get_flag("fs") {
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unistd::syncfs(&fd)?;
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} else {
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unistd::fsync(&fd)?;
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}
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}
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} else {
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unistd::sync();
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}
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Ok(())
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}
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fn path(&self) -> Option<shitbox::Path> {
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Some(shitbox::Path::Bin)
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}
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}
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