[llvm] [CI] Add Python Script for Computing Projects/Runtimes to Test (PR #132634)

[Mehdi Amini via llvm-commits]

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@@ -0,0 +1,186 @@
+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+"""Computes the list of projects that need to be tested from a diff.
+
+Does some things, spits out a list of projects.
+"""
+
+from collections.abc import Set
+import pathlib
+import platform
+import sys
+
+PROJECT_DEPENDENCIES = {
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joker-eph wrote:

Can you add a comment about the content of this? What is this conveying and when you a project include others in its list?

Reading the usage of this, it seems like it is handling transitive dependencies for example, so I assume we should only list direct dependencies?

Also some dependencies are optional (depending on the CMake configuration), so worth giving some idea of what is the intent and the effect (to know when / whether to be conservative or how to exercise judgement).

https://github.com/llvm/llvm-project/pull/132634