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Rowan 2024-09-27 23:53:28 -05:00
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/target

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[package]
name = "swaprs"
version = "0.1.0"
edition = "2021"
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src/main.rs Normal file
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use std::{
env, fs, io,
path::{Path, PathBuf},
};
use clap::Parser;
use rand::distributions::{Alphanumeric, DistString};
fn rename_or_copy<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> io::Result<()> {
match fs::rename(&from, &to) {
Ok(result) => Ok(result),
Err(_) => {
fs::copy(&from, &to)?;
fs::remove_file(from)?;
Ok(())
}
}
}
fn rand_string(len: usize) -> String {
Alphanumeric.sample_string(&mut rand::thread_rng(), len)
}
fn mktemp(len: usize) -> PathBuf {
let mut temp = env::temp_dir();
temp.push(format!("tmp.{}", rand_string(len)));
temp
}
#[derive(Parser, Debug)]
#[command(version, about, long_about = None)]
struct Args {
first: String,
second: String,
}
fn main() -> io::Result<()> {
let args = Args::parse();
let temp = mktemp(10);
let cwd = env::current_dir()?;
let first = Path::join(&cwd, args.first);
let second = Path::join(&cwd, args.second);
rename_or_copy(&first, &temp)?;
rename_or_copy(&second, &first)?;
rename_or_copy(&temp, &second)?;
Ok(())
}