add get_file_content and test, update test_get_file_info

functions/get_file_content.py

@@ -0,0 +1,21 @@
+import os
+
+
+def get_file_content(working_directory, file_path):
+    abs_dir_path = os.path.abspath(working_directory)
+    abs_file_path = os.path.abspath(os.path.join(abs_dir_path, file_path))
+    if os.path.commonpath([abs_dir_path, abs_file_path]) != abs_dir_path:
+        return f'Error: Cannot read "{file_path}" as it is outside the permitted working directory'
+    if not os.path.isfile(abs_file_path):
+        return f'Error: File not found or is not a regular file: "{file_path}"'
+    
+    MAX_CHARS = 10000
+    try:
+        with open(abs_file_path, "r") as f:
+            file_content_string = f.read(MAX_CHARS)
+            
+            if f.read(1):
+                file_content_string += f'[...File "{file_path}" truncated at {MAX_CHARS} characters]'
+    except Exception as e:
+        return f"Error: {e}"
+    return file_content_string