update sync

sync.sh

@@ -0,0 +1,109 @@
+#!/bin/bash
+
+set -e
+
+DOTFILES_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+HOME_DIR="$HOME"
+
+get_tracked_files() {
+    find "$DOTFILES_DIR" -type f \
+        -not -path "*/.git/*" \
+        -not -path "*/pack/vendor/*" \
+        -not -name "sync.sh" \
+        -not -name "*.md" \
+        -not -name "*.zip" | sort
+}
+
+usage() {
+    echo "Usage: $0 [push|pull|list]"
+    echo ""
+    echo "Commands:"
+    echo "  push    Copy dotfiles from this repo to home directory"
+    echo "  pull    Copy dotfiles from home directory to this repo"
+    echo "  list    Show all tracked dotfiles"
+    echo ""
+    echo "Tracked files:"
+    while IFS= read -r file; do
+        rel_path="${file#$DOTFILES_DIR/}"
+        echo "  ~/$rel_path"
+    done < <(get_tracked_files)
+    exit 1
+}
+
+ensure_dir() {
+    local dir="$1"
+    if [[ ! -d "$dir" ]]; then
+        echo "Creating directory: $dir"
+        mkdir -p "$dir"
+    fi
+}
+
+copy_file() {
+    local src="$1"
+    local dest="$2"
+    local action="$3"
+
+    if [[ -f "$src" ]]; then
+        ensure_dir "$(dirname "$dest")"
+        echo "$action: $src -> $dest"
+        cp "$src" "$dest"
+    else
+        echo "Warning: Source file does not exist: $src"
+    fi
+}
+
+push_dotfiles() {
+    echo "Pushing dotfiles from repo to home directory..."
+
+    local count=0
+    while IFS= read -r src_file; do
+        rel_path="${src_file#$DOTFILES_DIR/}"
+        dest_file="$HOME_DIR/$rel_path"
+        copy_file "$src_file" "$dest_file" "Push"
+        ((count++))
+    done < <(get_tracked_files)
+
+    echo "Push completed! ($count files processed)"
+}
+
+pull_dotfiles() {
+    echo "Pulling dotfiles from home directory to repo..."
+
+    local count=0
+    while IFS= read -r dest_file; do
+        rel_path="${dest_file#$DOTFILES_DIR/}"
+        src_file="$HOME_DIR/$rel_path"
+        copy_file "$src_file" "$dest_file" "Pull"
+        ((count++))
+    done < <(get_tracked_files)
+
+    echo "Pull completed! ($count files processed)"
+}
+
+if [[ $# -eq 0 ]]; then
+    usage
+fi
+
+case "$1" in
+    push)
+        push_dotfiles
+        ;;
+    pull)
+        pull_dotfiles
+        ;;
+    list)
+        echo "Tracked dotfiles:"
+        while IFS= read -r file; do
+            rel_path="${file#$DOTFILES_DIR/}"
+            echo "  ~/$rel_path"
+        done < <(get_tracked_files)
+        ;;
+    -h|--help|help)
+        usage
+        ;;
+    *)
+        echo "Error: Unknown command '$1'"
+        echo ""
+        usage
+        ;;
+esac