display file conflict to user

src/file_conflict_solver.rs

@@ -6,10 +6,10 @@ use crate::types::{InstalledMod, ModFile};
 
 #[derive(Debug)]
 pub struct Conflict<'a> {
-    rhs_mod: &'a InstalledMod,
-    lhs_mod: &'a InstalledMod,
-    rhs_file: &'a ModFile,
-    lhs_file: &'a ModFile,
+    pub rhs_mod: &'a InstalledMod,
+    pub lhs_mod: &'a InstalledMod,
+    pub rhs_file: &'a ModFile,
+    pub lhs_file: &'a ModFile,
 }
 
 pub struct ConflictSolver<'a> {
@@ -31,10 +31,10 @@ impl<'a> ConflictSolver<'a> {
         let path = &file.dst().to_owned();
         match self.files.get(path) {
             Some((current_file, current_file_mod)) => {
-                // debug!(
-                //     "Trying to resolve file conflict between at {}",
-                //     path.to_string_lossy()
-                // );
+                debug!(
+                    "Trying to resolve file conflict between at {}",
+                    path.to_string_lossy()
+                );
 
                 if from_mod == *current_file_mod {
                     // File from the same mod

src/instance.rs

@@ -5,7 +5,7 @@ use std::{
 };
 
 use globset::{Glob, GlobSet, GlobSetBuilder};
-use log::warn;
+use log::{error, warn};
 
 use crate::{
     file_conflict_solver::ConflictSolver,
@@ -20,7 +20,7 @@ pub fn insert_mod_to_instance(
     from_mod: &ModConfig,
     files: &[ModFile],
     priority: isize,
-) {
+) -> bool {
     let mut solver = ConflictSolver::new();
 
     let mut installed_files: Vec<(ModFile, &InstalledMod)> = Vec::new();
@@ -40,7 +40,14 @@ pub fn insert_mod_to_instance(
     let new_mod = InstalledMod::new(from_mod.id(), priority);
     for file in files {
         if let Some(conflict) = solver.add_file(file, &new_mod) {
-            // TODO: Return conflict
+            error!(
+                "File conflict detected at: {} between {} and {}",
+                conflict.rhs_file.dst().to_string_lossy(),
+                conflict.lhs_mod.mod_id(),
+                conflict.rhs_mod.mod_id()
+            );
+
+            return false;
         }
     }
 
@@ -64,6 +71,8 @@ pub fn insert_mod_to_instance(
     for (_, installed_mod) in map {
         instance.update_or_create_mod(&installed_mod);
     }
+
+    true
 }
 
 pub fn files_to_install_mod(

src/main.rs

@@ -39,7 +39,9 @@ fn command_add(root_config: &RootConfig, instance_id: &str, mod_id: &str) -> any
 
     let files = files_to_install_mod(root_config, &instance, mod_to_install)?;
 
-    insert_mod_to_instance(&mut instance, mod_to_install, &files, 0);
+    if !insert_mod_to_instance(&mut instance, mod_to_install, &files, 0) {
+        return Err(anyhow!("File conflict"));
+    }
 
     instance.save_to_file()?;
 

src/types/modded_instance.rs

@@ -4,7 +4,7 @@ use std::{
     path::{Path, PathBuf},
 };
 
-use log::trace;
+use log::debug;
 use serde::{Deserialize, Serialize};
 
 use crate::types::{ConfigReadWriteError, installed_mod::InstalledMod, link::Link};
@@ -29,7 +29,7 @@ pub struct ModdedInstance {
 
 impl ModdedInstance {
     pub fn load_from_file(path: impl AsRef<Path>) -> Result<Self, ConfigReadWriteError> {
-        trace!(
+        debug!(
             "Loading ModdedInstance from file: {}",
             path.as_ref().to_string_lossy()
         );
@@ -43,7 +43,7 @@ impl ModdedInstance {
     }
 
     pub fn save_to_file(&self) -> Result<(), ConfigReadWriteError> {
-        trace!(
+        debug!(
             "Saving ModdedInstance to: {}",
             self.self_path.to_string_lossy()
         );

src/types/root_config.rs

@@ -4,7 +4,7 @@ use std::{
     path::{Path, PathBuf},
 };
 
-use log::trace;
+use log::debug;
 use serde::Deserialize;
 
 use crate::types::{ConfigReadWriteError, ModConfig, game::Game, modded_instance::ModdedInstance};
@@ -31,7 +31,7 @@ pub struct RootConfig {
 
 impl RootConfig {
     pub fn load_from_file(path: impl AsRef<Path>) -> Result<Self, ConfigReadWriteError> {
-        trace!(
+        debug!(
             "Loading RootConfig from file: {}",
             path.as_ref().to_string_lossy()
         );