[cmake-developers] [CMake 0015813]: add_custom_command(COMMENT) force a newline in ninja printout

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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https://public.kitware.com/Bug/view.php?id=15813 
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Reported By:                Chris Green
Assigned To:                
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Project:                    CMake
Issue ID:                   15813
Category:                   CMake
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     new
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Date Submitted:             2015-10-27 15:47 EDT
Last Modified:              2015-10-27 15:47 EDT
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Summary:                    add_custom_command(COMMENT) force a newline in ninja
printout
Description: 
Under normal circumstances (built-in targets and build commands, for instance),
ninja puts out to a terminal a line of the form:

[n/M] <message>

Which is overwritten unless there is output from the command. In the case of a
COMMENT message such as COMMENT "Doing important stuff" to an
add_custom_command, however, a newline at the end of the message is printed
rather than having the next progress message overwrite it.

Steps to Reproduce: 
Add a custom command whose COMMAND produces no output. Attach it to a target
with the ALL option activated and then run CMake with the Ninja generator.
Activate ninja and watch the progress print behavior. Then, add a COMMENT to the
custom command definition and observe the behavior when ninja is rerun.

Additional Information: 
This behavior was observed with ninja 1.6.0.

This behavior has not been tested with add_custom_target(COMMENT ...).
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Issue History 
Date Modified    Username       Field                    Change               
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2015-10-27 15:47 Chris Green    New Issue                                    
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