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C#: Add functionality to detect overlay mode and integrate in extraction context.

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This commit is contained in:
Michael Nebel
2025-09-12 17:07:43 +02:00
parent 9026a5a82a
commit aa805580e3
8 changed files with 159 additions and 9 deletions
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14
csharp/extractor/Semmle.Util/EnvironmentVariables.cs
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@@ -53,5 +53,19 @@ namespace Semmle.Util
{
return Environment.GetEnvironmentVariable(name)?.Split(" ", StringSplitOptions.RemoveEmptyEntries) ?? [];
}
/// <summary>
/// Used to
/// (1) Detect whether the extractor should run in overlay mode.
/// (2) Returns the path to the file containing a list of changed files
/// in JSON format.
///
/// The environment variable is only set in case the extraction is supposed to be
/// performed in overlay mode. Furthermore, this only applies to buildless extraction.
/// </summary>
public static string? GetOverlayChangesFilePath()
{
return Environment.GetEnvironmentVariable("CODEQL_EXTRACTOR_CSHARP_OVERLAY_CHANGES");
}
}
}