feat(sandbox): add Python 3 code execution sandbox support

sandbox/script/env.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# Check if the correct number of arguments are provided
+if [ "$#" -ne 2 ]; then
+    echo "Usage: $0 <src> <dest>"
+    exit 1
+fi
+
+src="$1"
+dest="$2"
+
+# Function to copy and link files
+copy_and_link() {
+    local src_file="$1"
+    local dest_file="$2"
+
+    if [ -L "$src_file" ]; then
+        # If src_file is a symbolic link, copy it without changing permissions
+        cp -P "$src_file" "$dest_file"
+    elif [ -b "$src_file" ] || [ -c "$src_file" ]; then
+        # If src_file is a device file, copy it and change permissions
+        cp "$src_file" "$dest_file"
+        chmod 444 "$dest_file"
+    else
+        # Otherwise, create a hard link and change the permissions to read-only
+        ln -f "$src_file" "$dest_file" 2>/dev/null || { cp "$src_file" "$dest_file" && chmod 444 "$dest_file"; }
+    fi
+}
+
+# Check if src is a file or directory
+if [ -f "$src" ]; then
+    # src is a file, create hard link directly in dest
+    mkdir -p "$(dirname "$dest/$src")"
+    copy_and_link "$src" "$dest/$src"
+elif [ -d "$src" ]; then
+    # src is a directory, process as before
+    mkdir -p "$dest/$src"
+
+    # Find all files in the source directory
+    find "$src" -type f,l | while read -r file; do
+        # Get the relative path of the file
+        rel_path="${file#$src/}"
+        # Get the directory of the relative path
+        rel_dir=$(dirname "$rel_path")
+        # Create the same directory structure in the destination
+        mkdir -p "$dest/$src/$rel_dir"
+        # Copy and link the file
+        copy_and_link "$file" "$dest/$src/$rel_path"
+    done
+else
+    echo "Error: $src is neither a file nor a directory"
+    exit 1
+fi