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use crate::config::{CopyPath, Link, Step};
use std::{fs, path::PathBuf};
use crate::util::expand_home;
fn resolve_paths_and_mkdir(from: &String, to: &String, base_path: &PathBuf) -> Result<(PathBuf, PathBuf), Box<dyn std::error::Error>> {
let expanded_home = &expand_home(&to);
let destination = PathBuf::from(expanded_home);
let mut source = base_path.clone();
source.push(&from);
let dest_parent = destination.parent().unwrap();
fs::create_dir_all(dest_parent)?;
Ok((source, destination))
}
fn ln(paths: &Link, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
let (source, destination) = resolve_paths_and_mkdir(&paths.from, &paths.to, base_path)?;
let source = source.as_path();
let destination = destination.as_path();
let _ = fs::remove_file(destination);
fs::hard_link(source, destination)?;
Ok(true)
}
fn ln_sym(paths: &Link, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
let (source, destination) = resolve_paths_and_mkdir(&paths.from, &paths.to, base_path)?;
let source = source.as_path();
let destination = destination.as_path();
let _ = fs::remove_file(destination);
fs::soft_link(source, destination)?;
Ok(true)
}
fn cp(paths: &CopyPath, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
let (source, destination) = resolve_paths_and_mkdir(&paths.from, &paths.to, base_path)?;
let source = source.as_path();
let destination = destination.as_path();
if fs::metadata(destination).is_ok() {
return Ok(false);
}
fs::copy(source, destination)?;
Ok(true)
}
fn run_shell(command: &String) -> Result<bool, Box<dyn std::error::Error>> {
let exit = std::process::Command::new("/bin/sh").arg("-c").arg(command).output()?;
return Ok(exit.status.success());
}
pub fn run_step(step: &Step, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
match step {
Step::Link(path) => {
match path {
Link { symbolic: Some(true), .. } => ln_sym(path, base_path),
_ => ln(path, base_path),
}
},
Step::Copy(path) => { cp(path, base_path) },
Step::Shell(command) => run_shell(command),
}
}
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