CODEWITHSUNDEEP
boostboost-build
Marc Andreson
Marc Andreson

Reputation: 3495

Boost.Build rebuild

When I rebuild my app the executable built previously is not removed, and in case on compilation error my script continues execution and executes the executable file, which in fact was not updated. How can I i.e. remove the executable before the build process takes place? I want to do this in compilation action:

exe myapp : 
    #here I want to remove the executable file
    sources
    libraries
    ;

Upvotes: 1

Views: 596

Answers (1)

usta
usta

Reputation: 6869

Not sure if there is an easier way, but this will work:

# cleanexe.jam
import project ;
import targets ;
import generators ;
import type ;

type.register CLEAN_EXE : clean-exe ;

rule clean-exe ( source : requirements * : target-name ? )
{
    target-name ?= $(source:D=:S=).cleanexe ;
    return [ targets.create-typed-target CLEAN_EXE : [ project.current ] : $(target-name) : $(source) : $(requirements) ] ;
}

generators.register-standard cleanexe.clean-on-failure : EXE : CLEAN_EXE ;

rule clean-on-failure ( target : source : requirements * )
{
    RMOLD $(source) ;
}

And then in your jamfile you can do:

# jamfile
exe myapp : 
    sources
    libraries
    ;

import cleanexe : clean-exe ;
clean-exe myapp ;

Alternatively you might consider checking b2's (bjam's) exit code and if failed skip the rest of the script as appropriate.

Upvotes: 1

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