rustutils_sync/
lib.rs

1use clap::Parser;
2use rustutils_runnable::Runnable;
3use std::error::Error;
4use std::fs::File;
5use std::path::PathBuf;
6pub use syncfs::SyncFilesystem;
7
8mod syncfs;
9
10/// Synchronize cached writes to persistent storage.
11#[derive(Parser, Clone, Debug)]
12#[clap(author, version, about, long_about = None)]
13pub struct Sync {
14    /// Sync only the file data, no metadata
15    #[clap(short, long)]
16    data: bool,
17    /// Sync the entire filesystem that contains the data.
18    #[clap(short, long, conflicts_with = "data")]
19    file_system: bool,
20    /// List of files to synchronize
21    files: Vec<PathBuf>,
22}
23
24impl Runnable for Sync {
25    fn run(&self) -> Result<(), Box<dyn Error>> {
26        if self.files.len() == 0 {
27            #[cfg(unix)]
28            nix::unistd::sync();
29            #[cfg(target_arch = "wasm32")]
30            return Err(String::from("syncing the filesystem is unsupported for wasm32").into());
31        } else {
32            for file in &self.files {
33                let file = File::open(file)?;
34                if self.file_system {
35                    file.sync_filesystem()?;
36                } else if self.data {
37                    file.sync_data()?;
38                } else {
39                    file.sync_all()?;
40                }
41            }
42        }
43        Ok(())
44    }
45}
rustutils_sync/lib.rs

rustutils_sync/
lib.rs
