[PATCH][LNT] Avoid creating temporary files in LNT source checkout when running regression tests

[Chris Matthews via llvm-commits]

LGTM! Thank!

> On Sep 23, 2015, at 8:35 AM, Kristof Beyls <kristof.beyls at arm.com> wrote:
> 
> Hi,
>  
> I haven’t found much time to work on LNT in the past few months and wanted to come back to finally
> land my binary hash patch, but wanted to do a bit more testing on it. That’s when I realized that there
> isn’t much documentation on how to develop LNT and particularly on how to best run the regression
> tests. Therefore, I’ve started writing a very initial developer guide for LNT, which I’ve just uploaded for
> review at http://reviews.llvm.org/D13101 <http://reviews.llvm.org/D13101>.
>  
> While writing these guidelines on how to run regression tests while developing LNT, similar to how everyone
> runs regression tests when developing other LLVM sub-projects, I realized again that running the regression
> tests leave temporary files in the source checkout. That has annoyed me quite a bit in the past, e.g. every
> time I needed to run something like “git status” in there. The attached 2 patches should fix this.
>  
> The first patch makes sure that no .pyc files get generated when running the regression tests.
> The second patch results in temporary files being created in a sub-directory called “test_run_tmp” of the current directory,
> instead of scattered across the test source code directory. This makes it possible to run the tests out-of-source-tree.
> Even when you do run the tests in the source tree, all the temporary files are in a separate directory, not
> scattered across the test source directories.
>  
> Do these changes look fine to commit?
>  
> Thanks,
>  
> Kristof
> <0001-Don-t-generate-.pyc-files-when-running-tests.patch><0002-Avoid-leaving-temporary-files-in-the-source-when-run.patch>

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