From 51760e1d4aa417846b41a32ad845aaacc053a7f5 Mon Sep 17 00:00:00 2001
From: olwooz <24418404+olwooz@users.noreply.github.com>
Date: Sun, 17 Aug 2025 01:29:43 +0900
Subject: [PATCH] feat(installer): add confirmation before overwriting existing
 .zshrc (#13086)

---
 tools/install.sh | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/tools/install.sh b/tools/install.sh
index 5c9b2c18d..d274c2c9f 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -341,6 +341,23 @@ setup_zshrc() {
       echo "${FMT_YELLOW}Found ${zdot}/.zshrc.${FMT_RESET} ${FMT_GREEN}Keeping...${FMT_RESET}"
       return
     fi
+    
+    # Ask user for confirmation before backing up and overwriting
+    echo "${FMT_YELLOW}Found ${zdot}/.zshrc."
+    echo "The existing .zshrc will be backed up to .zshrc.pre-oh-my-zsh if overwritten."
+    echo "Make sure your .zshrc contains the following minimal configuration if you choose not to overwrite it:${FMT_RESET}"
+    echo "----------------------------------------"
+    cat "$ZSH/templates/minimal.zshrc"
+    echo "----------------------------------------"
+    printf '%sDo you want to overwrite it with the Oh My Zsh template? [Y/n]%s ' \
+      "$FMT_YELLOW" "$FMT_RESET"
+    read -r opt
+    case $opt in
+      [Yy]*|"") ;;
+      [Nn]*) echo "Overwrite skipped. Existing .zshrc will be kept."; return ;;
+      *) echo "Invalid choice. Overwrite skipped. Existing .zshrc will be kept."; return ;;
+    esac
+
     if [ -e "$OLD_ZSHRC" ]; then
       OLD_OLD_ZSHRC="${OLD_ZSHRC}-$(date +%Y-%m-%d_%H-%M-%S)"
       if [ -e "$OLD_OLD_ZSHRC" ]; then
@@ -353,7 +370,7 @@ setup_zshrc() {
       echo "${FMT_YELLOW}Found old .zshrc.pre-oh-my-zsh." \
         "${FMT_GREEN}Backing up to ${OLD_OLD_ZSHRC}${FMT_RESET}"
     fi
-    echo "${FMT_YELLOW}Found ${zdot}/.zshrc.${FMT_RESET} ${FMT_GREEN}Backing up to ${OLD_ZSHRC}${FMT_RESET}"
+    echo "${FMT_GREEN}Backing up to ${OLD_ZSHRC}${FMT_RESET}"
     mv "$zdot/.zshrc" "$OLD_ZSHRC"
   fi