Suchen von öffentlichem Code, der mit GitHub Copilot-Vorschlägen übereinstimmt

This version of this article is for Copilot in Visual Studio. For Copilot on other platforms, click the appropriate tab above.

If you've allowed suggestions that match public code, GitHub Copilot can provide you with details of the code that a suggestion matches. This happens:

• When you accept a code completion suggestion in the editor.
• When a response in Copilot Chat includes matching code.

Code referencing for Copilot code completion

When you accept a code completion suggestion that matches code in a public GitHub repository, information about the matching code is logged. The log entry includes the URLs of files containing matching code, and the name of the license that applies to that code, if any was found. This allows you to review these references and decide how to proceed. For example, you can decide what attribution to use, or whether you want to remove this code from your project.

Code referencing for Copilot Chat

When Copilot Chat provides a response that includes code that matches code in a public GitHub repository, this is indicated below the suggested code, with a link to display details of the matched code in the output log.

View code references for code completion

You can find code references in the GitHub Copilot log in Visual Studio.

1. In the menu bar, click View.

2. In the dropdown menu, click Output.

3. In Output view, click the box to the right of "Show output from" and select GitHub Copilot.

4. Leave the log displayed while you use GitHub Copilot in Visual Studio Code.

   When you accept a code completion suggestion that matches code in a public GitHub repository, an entry is added to the log.

   The log entry includes the following details:

   • The time you accepted the suggestion. Click the "Show Timestamp" clock icon if the time is not displayed.
   • The description [Completions Public Code Match Information].
   • The license type for the matching code, if found, otherwise NOASSERTION.
   • The URL of the file on GitHub.com where the similar code was found.

Example log entry

09:39:16:203	[Completions Public Code Match Information] Similar code with license type [MIT] https://github.com/octo-org/octo-repo/blob/34deb75eb6a2e22483ed465a6aec38c02eb2536e/routines/quicksort.js

Verifying the code referencing functionality

You can verify that code referencing is working by prompting Copilot to add some commonly used code and checking the output in the log.

1. Create a file called fizz-buzz.js and open it in the editor.

2. Display the log as described in the previous section.

3. In the editor, type:

   function fizzBuzz()
   

   With a space after the closing parenthesis.

   GitHub Copilot should suggest code to complete the function. Typically the suggestion will be a common implementation of the fizz buzz algorithm that will match publicly available code on the GitHub website.

4. To accept the suggestion, press Tab.

5. Check whether any entries for similar code have been added to the log.

If a response in Copilot Chat includes matching code, this is below the suggested code by the following text:

Found similar code in public repos. View matches

Click View matches to open the GitHub Copilot log, if it is not already open, and add details of the matched code.

The details include:

• The time you added the details to the log. Click the "Show Timestamp" clock icon if the time is not displayed.
• The description [Code Match] as the first log entry before the list of matching code.
• The license type—if found—for each instance of similar code.
• The URL of the file on GitHub.com where the matching code was found.
• A code snippet showing the matching code.

Logging example

09:24:10:525	[Code Match] Similar code with 2 license type(s) [MIT, NOASSERTION]
09:24:10:525	## License: MIT
09:24:10:525	https://github.com/octo-org/octo-repo/tree/127aac4ab27a42706af01be80f7aae3b83f44fbc/buzzfizz.py
09:24:10:525	```
09:24:10:525	for i in range(1, n + 1):
09:24:10:525	        if i % 3 == 0 and i % 5 == 0:
09:24:10:525	            print('FizzBuzz')
09:24:10:525	        elif i % 3 == 0:
09:24:10:525	            print('Fizz')
09:24:10:525	        elif i % 5 == 0:
09:24:10:525	```
09:24:10:525	## License: NOASSERTION
09:24:10:525	https://github.com/octo-org/monalisa/tree/011308746e53b26b128fa53c044a2527c39231f0/fizz-buzz.py
09:24:10:525	```
09:24:10:525	i % 3 == 0 and i % 5 == 0:
09:24:10:525	            print('FizzBuzz')
09:24:10:525	        elif i % 3 == 0:
09:24:10:525	            print('Fizz')
09:24:10:525	        elif i % 5 == 0:
09:24:10:525	            print('Buzz')
09:24:10:525	        else:
09:24:10:525	            print(i)
09:24:10:525	```