feat: restructure dotfiles setup with bootstrap and setup scripts, enhance branch selection and backup processes

scripts/utils.sh

@@ -34,3 +34,49 @@ command_exists() {
 is_interactive() {
     [[ $- == *i* ]]
 }
+
+# Branch selection utilities
+list_branches() {
+    local dotfiles_dir="$1"
+    cd "$dotfiles_dir"
+    
+    # Get available branches (both local and remote)
+    local branches=()
+    while IFS= read -r branch; do
+        # Clean up branch names (remove origin/ prefix, etc.)
+        clean_branch=$(echo "$branch" | sed 's|^origin/||' | sed 's|^remotes/origin/||')
+        # Skip HEAD and duplicates
+        if [[ "$clean_branch" != "HEAD" ]] && [[ ! " ${branches[@]} " =~ " ${clean_branch} " ]]; then
+            branches+=("$clean_branch")
+        fi
+    done < <(git branch -a --format="%(refname:short)" | grep -v "HEAD")
+    
+    # Sort and return branches
+    printf '%s\n' "${branches[@]}" | sort
+}
+
+switch_to_branch() {
+    local dotfiles_dir="$1"
+    local selected_branch="$2"
+    
+    cd "$dotfiles_dir"
+    
+    log_info "Switching to branch: $selected_branch"
+    
+    if git show-ref --verify --quiet "refs/heads/$selected_branch"; then
+        # Local branch exists
+        git checkout "$selected_branch"
+    elif git show-ref --verify --quiet "refs/remotes/origin/$selected_branch"; then
+        # Remote branch exists, create local tracking branch
+        git checkout -b "$selected_branch" "origin/$selected_branch"
+    else
+        log_error "Branch $selected_branch not found"
+        return 1
+    fi
+    
+    # Pull latest changes
+    log_info "Pulling latest changes..."
+    git pull --quiet || true
+    
+    log_success "Switched to branch: $selected_branch"
+}