added basic unpacker

src/cli.rs

@@ -19,4 +19,5 @@ pub enum Commands {
     LoadOrder { instance: String },
     ApiCheck,
     Download { url: String },
+    Unpack { id: String, path: String },
 }

src/main.rs

@@ -9,6 +9,7 @@ use crate::{
     instance::{files_to_install_mod, insert_mod_to_instance},
     nexus::{NexusAPI, download_nxm},
     types::RootConfig,
+    unpacker::unpack,
 };
 
 mod activator;
@@ -21,6 +22,7 @@ mod load_order;
 mod mod_config_installer;
 mod nexus;
 mod types;
+mod unpacker;
 mod utils;
 
 fn command_activate(
@@ -39,9 +41,9 @@ fn command_add(root_config: &RootConfig, instance_id: &str, mod_id: &str) -> any
         .mod_by_id(mod_id)
         .ok_or(anyhow!("Can't find mod in config"))?;
 
-    let files = files_to_install_mod(root_config, &instance, mod_to_install)?;
+    let files = files_to_install_mod(root_config, &instance, &mod_to_install)?;
 
-    match insert_mod_to_instance(&mut instance, mod_to_install, &files, 0) {
+    match insert_mod_to_instance(&mut instance, &mod_to_install, &files, 0) {
         Ok(_) => {
             instance.save_to_file()?;
             Ok(())
@@ -104,6 +106,25 @@ fn command_download(root_config: &RootConfig, nxm_url: &str) -> anyhow::Result<(
     Ok(())
 }
 
+fn command_unpack(
+    root_config: &mut RootConfig,
+    id: &str,
+    file: impl AsRef<Path>,
+) -> anyhow::Result<()> {
+    if root_config.game_by_id(id).is_some() {
+        error!("Mod already present");
+        return Err(anyhow!("Mod already exists"));
+    }
+
+    let new_mod = unpack(root_config, id, file)?;
+
+    root_config.add_mod(&new_mod);
+
+    root_config.save_to_file()?;
+
+    Ok(())
+}
+
 fn setup_logger() {
     env_logger::builder()
         .filter_level(log::LevelFilter::max())
@@ -118,7 +139,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     let args = Args::parse();
 
     debug!("Loading config from {:?}", args.config);
-    let root_config = RootConfig::load_from_file(args.config)?;
+    let mut root_config = RootConfig::load_from_file(args.config)?;
 
     match args.command {
         cli::Commands::Activate { instance, target } => {
@@ -137,6 +158,9 @@ fn main() -> Result<(), Box<dyn Error>> {
         cli::Commands::Download { url } => {
             command_download(&root_config, &url)?;
         }
+        cli::Commands::Unpack { id, path } => {
+            command_unpack(&mut root_config, &id, path)?;
+        }
     }
 
     Ok(())

src/unpacker.rs

@@ -0,0 +1,28 @@
+use std::{fs, path::Path};
+
+use anyhow::anyhow;
+
+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"));
+    }
+
+    unpack_7z_file(path, &extract_to)?;
+
+    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_rust::decompress_file(path, to)?;
+    Ok(())
+}