configure AI model with gpt-4o by default.

ros2ai/api/constants.py

@@ -14,7 +14,7 @@
 
 ROS_OPENAI_API_KEY_ENV_VAR = 'OPENAI_API_KEY'
 
-ROS_OPENAI_DEFAULT_MODEL = 'gpt-4'
+ROS_OPENAI_DEFAULT_MODEL = 'gpt-4o'
 ROS_OPENAI_MODEL_NAME_ENV_VAR = 'OPENAI_MODEL_NAME'
 
 ROS_OPENAI_DEFAULT_ENDPOINT = 'https://api.openai.com/v1'
@@ -31,7 +31,7 @@
     'professional assistant who can provide helpful answers against any questions.'
 ROLE_SYSTEM_EXEC_DEFAULT = \
     'You are a Robot Operating System 2 (as known as ROS2) {} distribution command line executor, ' \
-    'provides executable commands only without any comments.'
+    'provides executable command string only without any comments or code blocks.'
 
 # Temperature controls the consistency for behavior. (range 0.0 - 2.0)
 # The lower the temperature is, the more deterministic behavior that OpenAI does.

ros2ai/api/utils.py

@@ -82,3 +82,30 @@ def get_ros_distro() -> str:
         print('ROS_DISTRO env value is not set.')
         return None
     return distro.lower()
+
+def truncate_before_substring(*, original, substring) -> str:
+    """
+    Truncates a string by removing anything before a specified substring,
+    and removes the newline character at the end if it exists.
+
+    :original: original string to be truncated.
+    :substring: substring before which the string should be truncated.
+    :return: string with anything before the specified substring removed,
+      or the original string if the substring is not found.
+    """
+    index = original.find(substring)
+    if index != -1:
+        # If found, truncate the string before the substring and return
+        truncated = original[index:]
+
+        # Find the index of newline character in the truncated text
+        newline_index = truncated.find('\n')
+        if newline_index != -1:
+            # If newline character exists, truncate the string after the newline character
+            truncated = truncated[:newline_index]
+
+        return truncated
+
+    else:
+        # If the substring is not found, return the original text
+        return original

ros2ai/verb/exec.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 from ros2ai.api import add_global_arguments
-from ros2ai.api.utils import run_executable
+from ros2ai.api.utils import run_executable, truncate_before_substring
 from ros2ai.api.openai import ChatCompletionClient, ChatCompletionParameters
 from ros2ai.api.utils import get_ros_distro
 from ros2ai.verb import VerbExtension
@@ -58,4 +58,6 @@ def main(self, *, args):
         client.call(completion_params)
         if (args.debug is True):
             client.print_all()
-        run_executable(command = client.get_result())
+        command_str = truncate_before_substring(
+            original = client.get_result(), substring = 'ros2')
+        run_executable(command = command_str)