[IMPALA-7132] run_clang_tidy.sh produces unrelated output

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.13.0, Impala 3.1.0
• Fix Version/s: Impala 2.13.0, Impala 3.1.0
• Component/s: Infrastructure
• Target Version: Impala 2.13.0, Impala 3.1.0
• Epic Color: ghx-label-2
• Assignee: Joe McDonnell
• Reporter: Joe McDonnell
• Created: 06/Jun/18 20:26
• Updated: 29/May/19 15:34
• Resolved: 17/Jul/18 16:55

Description

bin/run_clang_tidy.sh uses Clang's run-clang-tidy.py script, and this is producing a large amount of useless output like this:

New replacement: /home/ubuntu/Impala/be/src/runtime/types.h: 7916:+0:"break; "
Existing replacement: /home/ubuntu/Impala/be/src/runtime/types.h: 7916:+0:"FALLTHROUGH_INTENDED; "
Fix conflicts with existing fix! The new insertion has the same insert location as an existing replacement.
New replacement: /home/ubuntu/Impala/be/src/runtime/types.h: 7916:+0:"break; "
Existing replacement: /home/ubuntu/Impala/be/src/runtime/types.h: 7916:+0:"FALLTHROUGH_INTENDED; "
1453 warnings generated.
Suppressed 1455 warnings (3 in non-user code, 2 NOLINT, 1450 with check filters).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.

This happens over and over with no diagnostic utility. It is being written to stderr, and it seems that nothing diagnostically useful is written to stderr.