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Alexandre Ganea 6c43b14f86 Re-land: [lit] Support running tests on Windows without GnuWin32 Historically, we have told contributors that GnuWin32 is a pre-requisite because our tests depend on utilities such as sed, grep, diff, and more. However, Git on Windows includes versions of these utilities in its installation. Furthermore, GnuWin32 has not been updated in many years. For these reasons, it makes sense to have the ability to run llvm tests in a way that is both: a) Easier on the user (less stuff to install) b) More up-to-date (The verions that ship with git are at least as new, if not newer, than the versions in GnuWin32. We add support for this here by attempting to detect where Git is installed using the Windows registry, confirming the existence of several common Unix tools, and then adding this location to lit's PATH environment. Differential Revision: https://reviews.llvm.org/D84380		2020-12-10 21:41:54 -05:00
..
examples
lit	Re-land: [lit] Support running tests on Windows without GnuWin32	2020-12-10 21:41:54 -05:00
tests	Fix shtest-timeout test harder	2020-12-08 00:23:33 -08:00
utils
CMakeLists.txt
LICENSE.TXT	[lit] Ship and bundle license for lit package	2020-10-30 15:34:00 +01:00
lit.py	[lit] Small cleanups. NFCI	2019-12-13 17:00:04 -08:00
MANIFEST.in
README.txt
setup.py	[lit] Ship and bundle license for lit package	2020-10-30 15:34:00 +01:00

README.txt

===============================
 lit - A Software Testing Tool
===============================

lit is a portable tool for executing LLVM and Clang style test suites,
summarizing their results, and providing indication of failures. lit is designed
to be a lightweight testing tool with as simple a user interface as possible.

=====================
 Contributing to lit
=====================

Please browse the Test Suite > lit category in LLVM's Bugzilla for ideas on
what to work on.

Before submitting patches, run the test suite to ensure nothing has regressed:

    # From within your LLVM source directory.
    utils/lit/lit.py \
        --path /path/to/your/llvm/build/bin \
        utils/lit/tests

Note that lit's tests depend on 'not' and 'FileCheck', LLVM utilities.
You will need to have built LLVM tools in order to run lit's test suite
successfully.

You'll also want to confirm that lit continues to work when testing LLVM.
Follow the instructions in http://llvm.org/docs/TestingGuide.html to run the
regression test suite:

    make check-llvm

And be sure to run the llvm-lit wrapper script as well:

    /path/to/your/llvm/build/bin/llvm-lit utils/lit/tests

Finally, make sure lit works when installed via setuptools:

    python utils/lit/setup.py install
    lit --path /path/to/your/llvm/build/bin utils/lit/tests