Make the init script idempotent

init.sh

@@ -1,13 +1,17 @@
 #!/bin/bash
 
-BASENAME="${0##*/}"
+# Get the directory where this script resides
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
-if [ x"$1" != x ]; then
-    CONFIG_PATH="$1"
-elif [ -d "${HOME}/config" ]; then
-    CONFIG_PATH="${HOME}/config"
+# Use provided path or default to script directory
+if [ -n "$1" ]; then
+    CONFIG_PATH="$(cd "$1" && pwd)"
 else
-    echo "Error: no config dir found"
+    CONFIG_PATH="$SCRIPT_DIR"
+fi
+
+if [ ! -d "$CONFIG_PATH" ]; then
+    echo "Error: config directory not found: $CONFIG_PATH"
     exit 1
 fi
 
@@ -15,18 +19,46 @@ link_config() {
     SRC="$1"
     NAME=$(basename "$SRC")
     DEST="${HOME}/.${NAME}"
-    if [ -e "$DEST" ]; then
-        echo "Existing file found at ${DEST}, moving to ~/original-dot-files."
-        mkdir "${HOME}/original-dot-files" >/dev/null 2>/dev/null
-        mv "$DEST" original-dot-files/
+
+    # Check if destination exists
+    if [ -e "$DEST" ] || [ -L "$DEST" ]; then
+        # If it's already a symlink pointing to the right place, skip it
+        if [ -L "$DEST" ] && [ "$(readlink "$DEST")" = "$SRC" ]; then
+            echo "✓ ${DEST} already linked correctly"
+            return 0
+        fi
+
+        # Otherwise, back it up
+        echo "Backing up existing ${DEST} to ~/original-dot-files/"
+        mkdir -p "${HOME}/original-dot-files"
+        mv "$DEST" "${HOME}/original-dot-files/${NAME}.$(date +%Y%m%d_%H%M%S)"
     fi
+
+    # Create the symlink
     ln -s "$SRC" "$DEST"
+    echo "→ Linked ${DEST} to ${SRC}"
 }
 
-cd "$CONFIG_PATH"
+# Files to exclude from symlinking
+EXCLUDE_FILES=("init.sh" "zsh" "Brewfile", "CLAUDE.md")
 
-for FILE in *; do
-    if [ "$FILE" != "init.sh" ] && [ "$FILE" != "zsh" ] && [ "$FILE" != "Brewfile" ]; then
-        link_config "${CONFIG_PATH}/$FILE"
+echo "Creating symlinks from ${CONFIG_PATH}..."
+
+for FILE in "$CONFIG_PATH"/*; do
+    BASENAME=$(basename "$FILE")
+
+    # Skip if file is in exclude list
+    SKIP=false
+    for EXCLUDE in "${EXCLUDE_FILES[@]}"; do
+        if [ "$BASENAME" = "$EXCLUDE" ]; then
+            SKIP=true
+            break
+        fi
+    done
+
+    if [ "$SKIP" = false ] && [ -f "$FILE" ]; then
+        link_config "$FILE"
     fi
 done
+
+echo "Done!"