vnetod/src/cli/switch.rs

33 lines
895 B
Rust

use crate::{cli::Args, domain};
use std::fs::File;
#[derive(Debug)]
pub enum Error {
OpenFile,
Switch(domain::switch::Error),
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Error::OpenFile => f.write_str("Cannot open file"),
Error::Switch(inner) => write!(f, "Cannot switch between states: {}", inner),
}
}
}
impl std::error::Error for Error {}
pub fn execute(args: &Args) -> Result<(), Error> {
let content = std::fs::read_to_string(&args.file).map_err(|_| Error::OpenFile)?;
let writer =
File::create(args.output.as_ref().unwrap_or(&args.file)).map_err(|_| Error::OpenFile)?;
domain::switch::execute(domain::switch::Request {
content: &content,
writer,
sections: &args.sections,
})
.map_err(Error::Switch)
}