add package manager recognition

11 files changed, 479 insertions, 90 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 5027c92..95d4a49 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,6 +27,55 @@ dependencies = [
 ]
 
 [[package]]
+name = "anstream"
+version = "0.6.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64e15c1ab1f89faffbf04a634d5e1962e9074f2741eef6d97f3c4e322426d526"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb47de1e80c2b463c735db5b217a0ddc39d612e7ac9e2e96a5aed1f57616c1cb"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d36fc52c7f6c869915e99412912f22093507da8d9e942ceaf66fe4b7c14422a"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bf74e1b6e971609db8ca7a9ce79fd5768ab6ae46441c572e46cf596f59e57f8"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
 name = "anyhow"
 version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -37,8 +86,10 @@ name = "arbs"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "clap",
  "color-eyre",
  "config",
+ "dirs",
  "gethostname",
  "serde",
  "serde_json",
@@ -116,6 +167,46 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
+name = "clap"
+version = "4.5.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e5a21b8495e732f1b3c364c9949b201ca7bae518c502c80256c96ad79eaf6ac"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cf2dd12af7a047ad9d6da2b6b249759a22a7abc0f474c1dae1777afa4b21a73"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501d359d5f3dcaf6ecdeee48833ae73ec6e42723a1e52419c79abf9507eec0a0"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
+
+[[package]]
 name = "color-eyre"
 version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -143,6 +234,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "colorchoice"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
+
+[[package]]
 name = "config"
 version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -159,7 +256,6 @@ dependencies = [
  "serde",
  "serde_json",
  "toml",
- "yaml-rust",
 ]
 
 [[package]]
@@ -251,6 +347,27 @@ dependencies = [
 ]
 
 [[package]]
+name = "dirs"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44c45a9d03d6676652bcb5e724c7e988de1acad23a711b5217ab9cbecbec2225"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "520f05a5cbd335fae5a99ff7a6ab8627577660ee5cfd6a94a6a929b52ff0321c"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
 name = "dlv-list"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -272,7 +389,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -302,7 +419,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc3655aa6818d65bc620d6911f05aa7b6aeb596291e1e9f79e52df85583d1e30"
 dependencies = [
  "rustix",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -335,6 +452,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
 [[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
 name = "indenter"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -351,6 +474,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
+[[package]]
 name = "itoa"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -380,10 +509,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
 [[package]]
-name = "linked-hash-map"
-version = "0.5.6"
+name = "libredox"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
+checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+dependencies = [
+ "bitflags",
+ "libc",
+]
 
 [[package]]
 name = "linux-raw-sys"
@@ -469,6 +602,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
+[[package]]
 name = "ordered-multimap"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -572,6 +711,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "redox_users"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
+dependencies = [
+ "getrandom",
+ "libredox",
+ "thiserror",
+]
+
+[[package]]
 name = "regex"
 version = "1.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -653,7 +803,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -736,6 +886,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
 [[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
+[[package]]
 name = "syn"
 version = "2.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -958,6 +1114,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
 
 [[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
 name = "uuid"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1008,11 +1170,35 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-sys"
 version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
 [[package]]
@@ -1021,30 +1207,48 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
 [[package]]
 name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
 [[package]]
 name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
 [[package]]
 name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
@@ -1057,24 +1261,48 @@ checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
 [[package]]
 name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
 [[package]]
 name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
 [[package]]
 name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
+[[package]]
+name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
@@ -1087,12 +1315,3 @@ checksum = "68a9bda4691f099d435ad181000724da8e5899daa10713c2d432552b9ccd3a6f"
 dependencies = [
  "memchr",
 ]
-
-[[package]]
-name = "yaml-rust"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
-dependencies = [
- "linked-hash-map",
-]
diff --git a/Cargo.toml b/Cargo.toml
index 629f6a6..31a210e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,18 +1,41 @@
 [package]
 name = "arbs"
-version = "0.1.0"
 edition = "2021"
+version = "0.1.0"
 
 [dependencies]
 anyhow = "1.0.86"
 color-eyre = "0.6.3"
-config = "0.14.0"
+dirs = "5.0.1"
 gethostname = "0.5.0"
-serde = { version = "1.0.209", features = ["derive"] }
 serde_json = "1.0.128"
 thiserror = "1.0.63"
 toml = "0.8.19"
 tracing = "0.1.40"
 tracing-appender = "0.2.3"
-tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
-uuid = { version = "1.10.0", features = ["v4"] }
+
+[dependencies.clap]
+version = "4.5.17"
+features = ["derive"]
+
+[dependencies.config]
+version = "0.14.0"
+features = ["ini", "toml", "json5", "ron", "json", "convert-case", "async"]
+default-features = false
+
+[dependencies.serde]
+version = "1.0.209"
+features = ["derive"]
+
+[dependencies.tracing-subscriber]
+version = "0.3.18"
+features = ["env-filter"]
+
+[dependencies.uuid]
+version = "1.10.0"
+features = ["v4"]
+
+[features]
+default = ["pacman", "portage"]
+pacman = []
+portage = []
diff --git a/src/backup.rs b/src/backup.rs
index e463593..f9de139 100644
--- a/src/backup.rs
+++ b/src/backup.rs
@@ -12,7 +12,7 @@ use uuid::Uuid;
 use crate::{
     config::Config,
     error::{Error, Result},
-    packages::Package,
+    packages::{Manager, PackageList},
     pathinfo::PathInfo,
 };
 
@@ -22,13 +22,13 @@ pub type Id = String;
 pub struct Backup {
     pub id: String,
     pub timestamp: u64,
-    packages: Vec<Package>,
+    pub packages: PackageList,
     pub files: Vec<PathInfo>,
-    device: String,
+    pub device: String,
 }
 
 impl Backup {
-    pub fn create(config: &Config, packages: Vec<Package>) -> Result<Self> {
+    pub fn create(config: &Config, manager: Option<Manager>) -> Result<Self> {
         let mut files: Vec<PathInfo> = Vec::new();
         for dir in &config.directories {
             files.push(PathInfo::from_path(config, dir)?);
@@ -37,7 +37,7 @@ impl Backup {
             // TODO: UUID not really needed, maybe a shorter hash
             id: Uuid::new_v4().to_string(),
             timestamp: Self::get_timestamp(),
-            packages,
+            packages: Manager::get_manager(manager)?.get_installed()?,
             files,
             device: config.device.clone(),
         })
@@ -62,6 +62,7 @@ impl Backup {
 
     pub fn get_last(config: &Config) -> Result<Option<Self>> {
         let backup_index_root = format!("{}/index.json", config.root);
+        info!(?backup_index_root, "backup index location:");
         let list: Vec<IndexEntry> = match Self::get_json_content(&backup_index_root) {
             Ok(list) => list,
             Err(err) => {
@@ -72,6 +73,8 @@ impl Backup {
             }
         };
 
+        info!(?list, "backup index:");
+
         Ok(Some(Self::from_index(
             config,
             &list.last().ok_or(Error::BackupNotFound)?.id,
@@ -109,6 +112,10 @@ impl Backup {
         format!("{loc}/{rel_location}")
     }
 
+    pub fn restore(&self) {
+        todo!()
+    }
+
     fn get_json_content<T: for<'a> Deserialize<'a>>(path: &str) -> Result<T> {
         let mut file = File::open(path)?;
         let mut content = String::new();
diff --git a/src/cli.rs b/src/cli.rs
new file mode 100644
index 0000000..6ffe03f
--- /dev/null
+++ b/src/cli.rs
@@ -0,0 +1,25 @@
+use std::path::PathBuf;
+
+use clap::{Parser, Subcommand};
+
+use crate::packages::Manager;
+
+#[derive(Parser)]
+pub struct Cli {
+    #[arg(short, long)]
+    pub config: Option<PathBuf>,
+
+    #[command(subcommand)]
+    pub subcommand: Subcommands,
+}
+
+#[derive(Subcommand)]
+pub enum Subcommands {
+    GenerateConfig,
+    Save {
+        #[arg(short, long)]
+        package_manager: Option<Manager>,
+    },
+    Restore,
+}
+
diff --git a/src/config.rs b/src/config.rs
index 13dd0e4..46d2204 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,5 @@
+use std::{fs::create_dir_all, io::Write, path::PathBuf};
+
 use config::{File, Map};
 use serde::{Deserialize, Serialize};
 use tracing::{debug, trace};
@@ -6,7 +8,6 @@ use tracing::{debug, trace};
 #[serde(default)]
 pub struct Config {
     pub root: String,
-    pub user: Vec<String>,
     pub directories: Vec<String>,
     pub custom_directories: Map<String, String>,
     pub device: String,
@@ -16,7 +17,6 @@ impl Default for Config {
     fn default() -> Self {
         Self {
             root: "/mnt/backup".to_string(),
-            user: vec![],
             directories: vec![],
             custom_directories: Map::new(),
             device: gethostname::gethostname()
@@ -27,10 +27,16 @@ impl Default for Config {
 }
 
 impl Config {
-    pub fn load() -> Result<Self, config::ConfigError> {
+    pub fn load(path: Option<PathBuf>) -> core::result::Result<Self, config::ConfigError> {
         debug!("load config");
+        let source = if let Some(source) = path {
+            source
+        } else {
+            Self::get_location()
+        };
+
         let config = config::Config::builder()
-            .add_source(File::with_name("config.toml").required(false))
+            .add_source(File::with_name(&source.to_string_lossy()).required(false))
             .add_source(config::Environment::with_prefix("FXBAUP").separator("_"))
             .build()?;
 
@@ -39,4 +45,20 @@ impl Config {
 
         cfg
     }
+
+    pub fn generate() -> crate::error::Result<()> {
+        let loc = Self::get_location();
+        create_dir_all(loc.parent().unwrap())?;
+        let mut f = std::fs::File::create(loc)?;
+        f.write_all(toml::to_string(&Self::default())?.as_bytes())?;
+
+        Ok(())
+    }
+
+    fn get_location() -> PathBuf {
+        let mut conf_dir = dirs::config_local_dir().unwrap();
+        conf_dir.push("arbs");
+        conf_dir.push("config.toml");
+        conf_dir
+    }
 }
diff --git a/src/error.rs b/src/error.rs
index 0cf4dca..e24c3b1 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -14,9 +14,6 @@ pub enum Error {
     #[error("invalid directory '{0}'")]
     InvalidDirectory(String),
 
-    #[error("Only exactly one user allowed in config")]
-    MultiUser,
-
     #[error("Requested backup not found")]
     BackupNotFound,
 
@@ -24,12 +21,21 @@ pub enum Error {
     #[error("Unknown Package Manger Output")]
     UnknownOutput,
 
+    #[error("Unsupported os/distro")]
+    Unsupported,
+
     #[error("json: {source}")]
     SerdeJson {
         #[from]
         source: serde_json::Error,
     },
 
+    #[error("toml serializer: {source}")]
+    TomlSerialize {
+        #[from]
+        source: toml::ser::Error,
+    },
+
     #[error("io: {source}")]
     Io {
         #[from]
diff --git a/src/main.rs b/src/main.rs
index 1284e0c..7393af9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,10 +1,13 @@
 use backup::Backup;
+use clap::Parser;
+use cli::Subcommands;
 use config::Config;
-use packages::{pacman::Pacman, PackageManager};
-use tracing::{debug, info, level_filters::LevelFilter};
+use error::Error;
+use tracing::{debug, level_filters::LevelFilter};
 use tracing_subscriber::{fmt, layer::SubscriberExt, util::SubscriberInitExt, EnvFilter};
 
 mod backup;
+mod cli;
 mod config;
 mod error;
 mod packages;
@@ -13,7 +16,7 @@ mod pathinfo;
 fn main() -> color_eyre::Result<()> {
     color_eyre::install()?;
 
-    let file_appender = tracing_appender::rolling::never("./", "arps.log");
+    let file_appender = tracing_appender::rolling::never("./", "arbs.log");
     let (non_blocking, _guard) = tracing_appender::non_blocking(file_appender);
 
     tracing_subscriber::registry()
@@ -33,19 +36,24 @@ fn main() -> color_eyre::Result<()> {
         .init();
     debug!("logging initialized");
 
-    let mut cfg = Config::load()?;
-    cfg.user.push("fx".to_string());
-    cfg.directories.push("~/.config/nvim".to_string());
-    cfg.root = "./backup".to_string();
-
-    let pacman = Pacman;
-    let pkgs = pacman.get_installed()?;
-    let backup = Backup::create(&cfg, pkgs);
-    // info!(?backup);
-    // pacman.install(vec![Package {
-    //     id: "lapce".to_string(),
-    //     version: "0.4.2-1".to_string(),
-    //     explicit: true,
-    // }])?;
+    let cli = cli::Cli::parse();
+
+    let config = Config::load(cli.config)?;
+
+    match cli.subcommand {
+        Subcommands::GenerateConfig => Config::generate()?,
+        Subcommands::Save { package_manager } => {
+            let backup = Backup::create(&config, package_manager)?;
+            backup.save(&config)?;
+        }
+        Subcommands::Restore => { 
+            let Some(last_backup) = Backup::get_last(&config)? else {
+                return Err(Error::BackupNotFound)?;
+            };
+
+            last_backup.packages.install()?;
+            last_backup.restore();
+        }
+    };
     Ok(())
 }
diff --git a/src/packages.rs b/src/packages.rs
index 5ee5664..2eadcfc 100644
--- a/src/packages.rs
+++ b/src/packages.rs
@@ -1,19 +1,96 @@
+use std::{fs::File, io::Read};
+
+use pacman::Pacman;
+use portage::Portage;
 use serde::{Deserialize, Serialize};
 
-use crate::error::Result;
+use crate::error::{Error, Result};
 
-pub mod pacman;
-pub mod portage;
+#[cfg(feature = "pacman")]
+mod pacman;
+#[cfg(feature = "portage")]
+mod portage;
 
 #[derive(Debug, Serialize, Deserialize)]
+pub struct PackageList {
+    packages: Vec<Package>,
+    manager: Manager,
+}
+
+impl PackageList {
+    pub fn install(&self) -> Result<()> {
+        self.manager.to_package_manager().install(self.packages.clone())
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Package {
     pub id: String,
     pub version: String,
     pub explicit: bool,
 }
 
+#[derive(Debug, Clone, clap::ValueEnum, Serialize, Deserialize)]
+pub enum Manager {
+    #[cfg(feature = "pacman")]
+    Pacman,
+    #[cfg(feature = "portage")]
+    Portage,
+}
+
+
+impl Manager {
+    pub fn get_manager(manager: Option<Manager>) -> Result<Box<dyn PackageManager>> {
+        #[cfg(not(target_os = "linux"))]
+        {
+            return Err(Error::Unsupported);
+        }
+
+        #[cfg(target_os = "linux")]
+        {
+            if let Some(man) = manager {
+                return Ok(man.to_package_manager());
+            }
+            let mut os_release = File::open("/etc/os-release")?;
+            let mut content = String::new();
+            os_release.read_to_string(&mut content)?;
+
+            let lines: Vec<&str> = content.split('\n').collect();
+            for line in lines {
+                let Some((key, value)) = line.split_once('=') else {
+                    continue;
+                };
+                if key == "ID" {
+                    return Self::from_str(value);
+                }
+            }
+            Err(Error::Unsupported)
+        }
+    }
+
+    fn from_str(value: &str) -> Result<Box<dyn PackageManager>> {
+        Ok(match value {
+            #[cfg(feature = "pacman")]
+            "arch" => Box::new(Pacman),
+            #[cfg(feature = "portage")]
+            "gentoo" => Box::new(Portage),
+            _ => return Err(Error::Unsupported),
+        })
+    }
+
+    fn to_package_manager(&self) -> Box<dyn PackageManager> {
+        match self {
+            #[cfg(feature = "pacman")]
+            Self::Pacman => Box::new(Pacman),
+            #[cfg(feature = "portage")]
+            Self::Portage => Box::new(Portage),
+        }
+    }
+}
+
+
 pub trait PackageManager {
-    fn get_installed(&self) -> Result<Vec<Package>>;
+    fn get_installed(&self) -> Result<PackageList>;
 
     fn install(&self, pkgs: Vec<Package>) -> Result<()>;
 }
diff --git a/src/packages/pacman.rs b/src/packages/pacman.rs
index e10c6fb..0ad463b 100644
--- a/src/packages/pacman.rs
+++ b/src/packages/pacman.rs
@@ -1,13 +1,13 @@
 use std::process::{Command, Stdio};
 
-use super::{Package, PackageManager};
+use super::{Package, PackageList, PackageManager};
 
 use crate::error::{Error, Result};
 
 pub struct Pacman;
 
 impl PackageManager for Pacman {
-    fn get_installed(&self) -> Result<Vec<super::Package>> {
+    fn get_installed(&self) -> Result<PackageList> {
         let pm_pkgs = Command::new("pacman").args(["-Q"]).output().unwrap();
         let pm_e_pkgs = Command::new("pacman")
             .args(["-Q", "--explicit"])
@@ -37,16 +37,19 @@ impl PackageManager for Pacman {
             });
         }
 
-        Ok(pkgs)
+        Ok(PackageList {
+            packages: pkgs,
+            manager: super::Manager::Pacman,
+        })
     }
 
     fn install(&self, pkgs: Vec<super::Package>) -> Result<()> {
-        let mut args = vec!["--noconfirm".to_string(), "-S".to_string()];
+        let mut args = vec!["pacman".to_string(), "--noconfirm".to_string(), "-S".to_string()];
 
         for pkg in pkgs {
             args.push(pkg.id);
         }
-        Command::new("pacman")
+        Command::new("doas")
             .stdout(Stdio::inherit())
             .args(args)
             .spawn()?
diff --git a/src/packages/portage.rs b/src/packages/portage.rs
index f9a760b..7fa09a8 100644
--- a/src/packages/portage.rs
+++ b/src/packages/portage.rs
@@ -1,11 +1,11 @@
 use tracing::error;
 
-use super::PackageManager;
+use super::{PackageList, PackageManager};
 
 pub struct Portage;
 
 impl PackageManager for Portage {
-    fn get_installed(&self) -> crate::error::Result<Vec<super::Package>> {
+    fn get_installed(&self) -> crate::error::Result<PackageList> {
         todo!()
     }
 
diff --git a/src/pathinfo.rs b/src/pathinfo.rs
index 8b1ca2f..03b8a6b 100644
--- a/src/pathinfo.rs
+++ b/src/pathinfo.rs
@@ -120,7 +120,8 @@ impl PathInfo {
         let old_path = modified_backup.get_absolute_file_location(config, &last_file.rel_location);
         let new_path = format!("{location_root}/{rel_location}");
 
-        let mut old = File::open(old_path)?; let mut new = File::open(new_path)?;
+        let mut old = File::open(old_path)?;
+        let mut new = File::open(new_path)?;
 
         let old_len = old.metadata()?.len();
         let new_len = new.metadata()?.len();
@@ -195,12 +196,9 @@ impl PathInfo {
             return Err(Error::InvalidDirectory(value.to_string()));
         };
         if split.0.starts_with('~') {
-            if config.user.len() != 1 {
-                return Err(Error::MultiUser);
-            }
             return Ok((
                 split.1.to_string(),
-                LocationRoot::User(config.user[0].clone()),
+                LocationRoot::User,
             ));
         };
         Ok((
@@ -212,18 +210,22 @@ impl PathInfo {
 
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub enum LocationRoot {
-    User(String),
+    User,
     Custom(String),
-    SystemSettings,
+    SystemConfig,
+    UserConfig,
     Root,
 }
 
 impl Display for LocationRoot {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            LocationRoot::User(user) => write!(f, "/home/{user}"),
+            LocationRoot::User => write!(f, "{}", dirs::home_dir().unwrap().to_string_lossy()),
             LocationRoot::Custom(loc) => write!(f, "{loc}"),
-            LocationRoot::SystemSettings => write!(f, "/etc"),
+            LocationRoot::SystemConfig => write!(f, "/etc"),
+            LocationRoot::UserConfig => {
+                write!(f, "{}", dirs::config_local_dir().unwrap().to_string_lossy())
+            }
             LocationRoot::Root => write!(f, "/"),
         }
     }
@@ -236,8 +238,9 @@ impl LocationRoot {
             return Err(Error::NoIndex);
         };
         match split_op.0 {
-            "u" => Ok(Self::User(split_op.1.to_string())),
-            "s" => Ok(Self::SystemSettings),
+            "u" => Ok(Self::User),
+            "s" => Ok(Self::SystemConfig),
+            "d" => Ok(Self::UserConfig),
             "r" => Ok(Self::Root),
             "c" => Ok(Self::Custom(
                 config
@@ -262,7 +265,6 @@ mod tests {
         backup::Backup,
         config::Config,
         error::{Error, Result},
-        packages::{pacman::Pacman, PackageManager},
     };
 
     use super::LocationRoot;
@@ -276,8 +278,8 @@ mod tests {
             .insert("test".to_string(), "/usr/local/test".to_string());
 
         let mut values_ok: Vec<(&str, LocationRoot)> = Vec::new();
-        values_ok.push(("u:test", LocationRoot::User("test".to_string())));
-        values_ok.push(("s:", LocationRoot::SystemSettings));
+        values_ok.push(("u:test", LocationRoot::User));
+        values_ok.push(("s:", LocationRoot::SystemConfig));
         values_ok.push(("r:", LocationRoot::Root));
         values_ok.push((
             "c:test",
@@ -321,7 +323,6 @@ mod tests {
     #[test]
     fn parse_location() -> Result<()> {
         let mut config = Config::default();
-        config.user.push("test".to_string());
         config
             .custom_directories
             .insert("test".to_string(), "/usr/local/test".to_string());
@@ -331,14 +332,14 @@ mod tests {
             "~/.config/nvim",
             (
                 ".config/nvim".to_string(),
-                LocationRoot::User("test".to_string()),
+                LocationRoot::User,
             ),
         ));
         values_ok.push((
             "u:test/.config/nvim",
             (
                 ".config/nvim".to_string(),
-                LocationRoot::User("test".to_string()),
+                LocationRoot::User,
             ),
         ));
         values_ok.push((
@@ -351,7 +352,7 @@ mod tests {
         ));
         values_ok.push((
             "s:/.config/nvim",
-            (".config/nvim".to_string(), LocationRoot::SystemSettings),
+            (".config/nvim".to_string(), LocationRoot::SystemConfig),
         ));
         values_ok.push((
             "c:test/.config/nvim",
@@ -385,9 +386,7 @@ mod tests {
         let mut f = File::create("./backup-test-dir/nothing.txt")?;
         f.write_all("unmodified".as_bytes())?;
 
-        let pacman = Pacman;
-        let pkgs = pacman.get_installed()?;
-        let backup = Backup::create(&config, pkgs)?;
+        let backup = Backup::create(&config, None)?;
         backup.save(&config)?;
 
         let mut f = File::create("./backup-test-dir/size.txt")?;