Files
fomod-manager/src/unpacker.rs

63 lines
1.7 KiB
Rust

use std::{fs, path::Path};
use anyhow::anyhow;
use log::error;
use zip::ZipArchive;
use crate::types::{ModConfig, RootConfig};
pub fn unpack(
root_config: &RootConfig,
id: &str,
path: impl AsRef<Path>,
) -> anyhow::Result<ModConfig> {
let extract_to = root_config.mod_location().join(id);
if fs::exists(&extract_to)? {
return Err(anyhow!("File already exists"));
}
match path.as_ref().extension().and_then(|e| e.to_str()) {
Some("7z") => unpack_7z_file(path, &extract_to),
Some("zip") => unpack_zip_file(path, &extract_to),
Some("rar") => unpack_rar(path, &extract_to),
Some(ext) => {
error!("Unsupported archive format: {}", ext);
Err(anyhow!("Unsupported archive format: {}", ext))
}
None => {
error!(
"Failed to determine the file extension for {}",
&path.as_ref().to_string_lossy()
);
Err(anyhow!("Failed to determine file extension"))
}
}?;
let new_mod = ModConfig::new(id, id);
Ok(new_mod)
}
fn unpack_7z_file(path: impl AsRef<Path>, to: impl AsRef<Path>) -> anyhow::Result<()> {
sevenz_rust2::decompress_file(path, to)?;
Ok(())
}
fn unpack_zip_file(path: impl AsRef<Path>, to: impl AsRef<Path>) -> anyhow::Result<()> {
let file = fs::File::open(path)?;
let mut archive = ZipArchive::new(file)?;
archive.extract(to)?;
Ok(())
}
fn unpack_rar(path: impl AsRef<Path>, to: impl AsRef<Path>) -> anyhow::Result<()> {
let mut archive = unrar::Archive::new(path.as_ref()).open_for_processing()?;
while let Some(header) = archive.read_header()? {
archive = header.extract_with_base(&to)?;
}
Ok(())
}