From 027efa3f8386dcae14ebfacaac748d7d3213959a Mon Sep 17 00:00:00 2001
From: theMZet <paszkietpawel@wp.pl>
Date: Sat, 30 May 2026 00:41:44 +0200
Subject: [PATCH] feat: sync subcommand

---
 src/main.rs            | 21 +++++++++++++++++++--
 src/package_manager.rs | 29 +++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 70efa7d..e20667f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -30,7 +30,7 @@ mod world;
 use error::*;
 
 use crate::{
-    package_manager::{get_system_state, get_unneeded_packages, remove_packages},
+    package_manager::{get_system_state, get_unneeded_packages, remove_packages, update_packages},
     world::{World, get_world_location},
 };
 
@@ -99,7 +99,24 @@ fn main() -> Result<()> {
     };
 
     match args.command {
-        Commands::Sync => todo!(),
+        Commands::Sync => {
+            let world = World::load_from(world_path)?;
+            let world_state = world.get_packages();
+            let state = get_system_state()?;
+
+            let not_installed = {
+                let mut x = world_state.exclude(&state);
+                x.ignore = world_state.ignore.clone();
+                x.exclude_ignored();
+                x.get_package_list()
+            };
+
+            update_packages(&not_installed)?;
+
+            if !args.quiet {
+                println!("Succesfully synchronized state with the world file!");
+            }
+        }
         Commands::Export {
             overwrite,
             stdout,
diff --git a/src/package_manager.rs b/src/package_manager.rs
index ba334c1..a56dfca 100644
--- a/src/package_manager.rs
+++ b/src/package_manager.rs
@@ -62,3 +62,32 @@ pub fn remove_packages(packages: &[String], all: bool) -> Result<()> {
 
     Ok(())
 }
+
+fn _update_packages(command: Command, packages: &[String]) -> Result<()> {
+    let mut command = command;
+    command
+        .arg("-Syu")
+        .args(packages)
+        .stderr(Stdio::inherit())
+        .stdout(Stdio::inherit())
+        .stdin(Stdio::inherit())
+        .status()?;
+    Ok(())
+}
+
+#[cfg(not(any(feature = "yay", feature = "paru")))]
+pub fn update_packages(packages: &[String]) -> Result<()> {
+    let mut command = Command::new(PRIVLAGE_ESCELATE_COMMAND);
+    command.arg("pacman");
+    _update_packages(command, packages)
+}
+
+#[cfg(feature = "yay")]
+pub fn update_packages(packages: &[String]) -> Result<()> {
+    _update_packages(Command::new("yay"), packages)
+}
+
+#[cfg(feature = "paru")]
+pub fn update_packages(packages: &[String]) -> Result<()> {
+    _update_packages(Command::new("paru"), packages)
+}