Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9554 )

Change subject: iwyu: workaround missing IWYU results when using Ninja
......................................................................


Patch Set 2:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/9554/2/build-support/iwyu/iwyu_tool.py
File build-support/iwyu/iwyu_tool.py:

http://gerrit.cloudera.org:8080/#/c/9554/2/build-support/iwyu/iwyu_tool.py@190
PS2, Line 190: '(-isystem |-I\s*)([^/]\S+)'
> but that's not a relative path, so it shouldn't match, right?
Maybe I'm missing something, but I don't see how it's guaranteed that the 
command doesn't include absolute paths for '-I' directives.  And if so, then I 
think the result is not what we want:

>>> import os
>>> import re
>>>
>>> def subber(m):
...         return m.group(1) + os.path.abspath(os.path.join('/tmp') + 
m.group(2))
...

>>> re.sub(r'(-isystem |-I\s*)([^/]\S+)', subber, '-I /usr/include')
'-I/tmp /usr/include'
>>>

So, that's not what we want, right?



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I092cab794fd20a39fcfbbbe52f4c325fac2d149c
Gerrit-Change-Number: 9554
Gerrit-PatchSet: 2
Gerrit-Owner: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
Gerrit-Comment-Date: Tue, 13 Mar 2018 00:42:33 +0000
Gerrit-HasComments: Yes

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