CODEWITHSUNDEEP
cmake
mgiaco
mgiaco

Reputation: 369

CMake ignore return on custom target

I have added this custom target to my CMakeList.txt file.

System: Windows 7, TDMGCC MinGW32, and Ninja latest from GitHub.

ADD_CUSTOM_TARGET(unittest_run
    COMMAND test1.exe > result.testresult
    COMMAND test2.exe >> result.testresult
    COMMAND type result.testresult
)

The problem is that when test1.exe fails I generate a fail output, but it seems that there is also some error code coming which causes a problem. ninja: build stopped: subcommand failed.

How can I tell CMake it should ignore return errors?

Upvotes: 4

Views: 5397

Answers (2)

mgiaco
mgiaco

Reputation: 369

It works only this way:

COMMAND 
test1.exe > result.testresult & 
test2.exe >> result.testresult || 
(exit 0) &
type result.testresult

Upvotes: 0

Steve Lorimer
Steve Lorimer

Reputation: 28689

You can try use a conditional OR statement, which will be run only if the preceding statement fails, and generate a successful return code from the secondary statement

From this page on "Conditional Execution" you can use || to conditionally execute a secondary statement if the first fails

Execute command2 only if command1 fails (OR)

    command1 || command2

From this SO answer it is possible to generate a successful return code using (exit 0)

true is roughly equivalent to (exit 0) (the parentheses create a subshell that exits with status 0, instead of exiting your current shell.

Putting it all together:

ADD_CUSTOM_TARGET(unittest_run
    COMMAND test1.exe > result.testresult  || (exit 0)
    COMMAND test2.exe >> result.testresult || (exit 0)
    COMMAND type result.testresult
)

Upvotes: 5

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