[llvm-dev] No longer able to run lit tests within a sub-tool

[Zachary Turner via llvm-dev]

This works for me.  Can you run "which clang-func-mapping" and also add a
line to clang/test/lit.cfg.py to print the value of
config.environment['PATH']?

On Fri, Sep 22, 2017 at 11:27 AM Zachary Turner <zturner at google.com> wrote:

> Looking, thanks for the report.
>
> On Fri, Sep 22, 2017 at 11:22 AM Vedant Kumar <vsk at apple.com> wrote:
>
>> As of r313998, this workflow no longer works:
>>
>>   cd <build-dir>
>>   ./bin/llvm-lit <src>/llvm/tools/clang/test/CoverageMapping
>>
>> I get:
>>
>> llvm-lit: /Users/vk/src/llvm.org-coverage-braces/llvm/tools/clang/test/
>> lit.cfg.py:97: note: using clang: '/Volumes/Builds/llvm.org
>> -coverage-braces-RA/bin/clang'
>> llvm-lit: /Users/vk/src/llvm.org-coverage-braces/llvm/utils/lit/lit/TestingConfig.py:101:
>> fatal: unable to parse config file '/Users/vk/src/llvm.org
>> -coverage-braces/llvm/tools/clang/test/lit.cfg.py', traceback: Traceback
>> (most recent call last):
>>   File "/Users/vk/src/llvm.org-coverage-braces/llvm/utils/lit/lit/TestingConfig.py",
>> line 88, in load_from_path
>>     exec(compile(data, path, 'exec'), cfg_globals, None)
>>   File "/Users/vk/src/llvm.org-coverage-braces/llvm/tools/clang/test/
>> lit.cfg.py", line 128, in <module>
>>     config.substitutions.append( ('%clang_func_map', ' ' +
>> lit.util.which('clang-func-mapping', config.environment['PATH']) + ' ') )
>> TypeError: cannot concatenate 'str' and 'NoneType' objects
>>
>> However, this still works when running tests within llvm:
>>
>>   ./bin/llvm-lit <src>/llvm/test/tools/llvm-cov
>>
>> I'd appreciate any help in getting this working again.
>>
>> thanks,
>> vedant
>>
>>
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