feat: installer treat breaking changes

install.sh

@@ -2,6 +2,8 @@
 set -e
 
 RED='\033[0;31m'
+GREEN='\033[0;32m'
+ORANGE='\033[0;33m'
 NC='\033[0m'
 
 DESTINATION_PATH="/usr/local/bin"
@@ -12,13 +14,87 @@ if [ "$(id -u)" -eq 0 ]; then
     exit 1
 fi
 
+# --- Main ---
+
+# Warning
+
 echo -e "!!! ${RED}WARNING${NC} !!!"
 echo -e "This script will install Helldivers 2 Mod Manager CLI for Linux to $DESTINATION_PATH/$SCRIPT_NAME."
 echo -e "Running this script will require sudo permissions. ${RED}DO NOT TRUST${NC} random scripts from the internet."
 echo -e "If you want to review the script before running it, check out the mod repository for yourself:"
 echo -e "https://github.com/v4n00/h2mm-cli"
+echo -e "!!! ${RED}WARNING${NC} !!!"
 echo
 
+# Check if update
+
+# Breaking changes hash table
+
+breaking_changes_patches=(
+    ["2"]='sed -i "s/^\([0-9]\+\),/\1,ENABLED,/" "$1/mods.csv"'
+)
+
+# Script
+
+if [[ -x "$(command -v $SCRIPT_NAME)" ]]; then
+    installed_version=$($SCRIPT_NAME --version)
+    # version 1 show the help message, if the first character is not a 0, store installed version as 0.1.6
+    [[ ${installed_version:0:1} != "0" ]] && { installed_version="0.1.6"; }
+
+    latest_version=$(curl -sS https://raw.githubusercontent.com/v4n00/h2mm-cli/refs/heads/master/version)
+    if [[ "$latest_version" == "$installed_version" ]]; then
+        echo -e "You are reinstalling version $installed_version."
+    else
+        echo -e "You are upgrading from ${ORANGE}$installed_version${NC} -> ${GREEN}$latest_version${NC}."
+    fi
+
+    # split version numbers
+    installed_major=""
+    latest_major=""
+    IFS='.' read -r _1 installed_major _2 <<< "$installed_version"
+    IFS='.' read -r _1 latest_major _2 <<< "$latest_version"
+
+    if [[ $latest_major -gt $installed_major ]]; then
+        echo -e "${ORANGE}Warning:${NC} Major version upgrade detected."
+        echo "The script will proceed to upgrade ${SCRIPT_NAME} to avoid breaking changes."
+
+        # find hd2 path
+        search_dir="${HOME}"
+        target_dir="Steam/steamapps/common/Helldivers\ 2/data"
+        echo "Searching for the Helldivers 2 data directory..." >&2
+        game_dir=$(find "$search_dir" -type d -path "*/$target_dir" 2>/dev/null | head -n 1)
+        if [[ -z "$game_dir" ]]; then
+            echo "Could not find the Helldivers 2 data directory automatically." >&2
+            read -p "Please enter the path to the Helldivers 2 data directory: " game_dir
+            game_dir=$(eval echo "$game_dir")
+
+            if [[ ! -d "$game_dir" ]]; then
+                echo -e "${RED}Error${NC}: Provided path is not a valid directory." >&2
+                exit 1
+            fi
+        fi
+
+        [[ ! -f "$game_dir/mods.csv" ]] && { echo -e "${RED}Error:${NC} mods.csv not found in $game_dir."; exit 1; }
+
+        # iterate from installed major number to latest major number
+        for ((i = installed_major + 1; i <= latest_major; i++)); do
+            echo -e "${RED}[ ]${NC} Applying breaking changes patch for version $i."
+
+            [[ -n "${breaking_changes_patches[$i]}" ]] && eval $(echo "${breaking_changes_patches[$i]}" | sed "s:\$1:$game_dir:")
+            if [[ $? -ne 0 ]]; then
+                echo -ne "${RED}Error:${NC} Failed to apply breaking changes patch for version $i. Do you want to continue? (Y/n): "
+                read -r response
+                
+                [[ "$response" != "y" && "$response" != "Y" && -n "$response" ]] && { echo "Exiting. Uninstall the script first the retry the install script."; exit 1; }
+            else
+                echo -e "${GREEN}[X]${NC} Breaking changes patch for version $i applied successfully."
+            fi
+        done
+    fi
+fi
+
+# Install
+
 read -p "Install the script to $DESTINATION_PATH or specify another path (must be included in \$PATH)? (Y/path): " response
 
 if [[ "$response" != "y" && "$response" != "Y" && -n "$response" ]]; then