[Boost-build] project with custom dependencies

From: Olivier.Pomerleau_at_[hidden]
Date: 2006-09-21 12:32:35

Hello,
     I have been banging my head on this for a couple too long so I need 
some help.  Here is the concept of what I am doing:
I use an intermediate language(.idl) to generate 2 cpp and 2 hpp files.  I 
have an exe(idlcompiler) (that I build to do so) that take the .idl and 
generate the cpp and hpp files.

What I want to have:
     -If change one idl, I want to regenerate its hpp/cpp files.
     -If I change the source code of the exe, I want to rebuild that exe 
and then I want all hpp/cpp to be regenerated for their idls.

I ll post part of my jambase that I find relevent.  Feel free to ask for 
more if you think it is important

Thank you for any information that can help me make this works !

rule Build( target : source * : projectName : libFiles * : ignoredLibs * : 
type : aggregatedLibFiles * : ppdefs * : postBuildCommand ? )
{ 
    Depends clean : $(cleanTarget) ;
    ALWAYS $(cleanTarget) ;
    local CONFIG_NAME = $($(config).NAME) ;
    # TODO include cleaning information in variables 
    Clean $(cleanTarget) : $(target) ;
    local compiled = ;
    for local src in $(source)
    {
         .... 
        if $(src:S) = ".idl"
        {
             #this are the file to be generated
            genSourceCpp = $(src:D)\\$(src:B).cpp ;
            genSourceHpp = $(src:D)\\$(src:B).hpp ;
            genSourceCppWrapper = $(src:D)\\Wrapper_$(src:B).cpp ;
            genSourceHppWrapper = $(src:D)\\Wrapper_$(src:B).hpp ;

            #depend on the idl File
            Depends $(genSourceCpp) : $(src) ;
            Depends $(genSourceHpp) : $(src) ;
            Depends $(genSourceCppWrapper) : $(src) ;
            Depends $(genSourceHppWrapper) : $(src) ;

            #depend on the generator
            Depends $(src) : $($(config).IDLCOMPILER .EXE) ;

            ## I have tried depending on the project where my idlcompiler 
is made
            #Depends $(src) : <projectname>idlcompiler ;  

            ## I have tried depending on a txt file and my cpp/hpp were 
always regenerated
            #Depends $(src) : z:\\test1.txt2 ; 
 
            Clean $(cleanTarget) : $(genSourceCpp) ;
            Clean $(cleanTarget) : $(genSourceCppWrapper) ;
 
            IDLCOMPILER on $(genSourceCpp) = $($(config).IDLCOMPILER.EXE ) 
;
            IdlCompile $(genSourceCpp) : $(src) ;
            IDLCOMPILER on $(genSourceCppWrapper) = 
$($(config).IDLCOMPILER.EXE) ;
            IdlCompile $(genSourceCppWrapper) : $(src) ;
 
            comp = $(intermediateDir)\\$(genSourceCpp:B).cpp.obj ;
            compiled += $(comp) ;
            CompiledCode $(comp) : $(genSourceCpp) : $(config) : : 
$(ppdefs) ; 
 
            comp = $(intermediateDir)\\$(genSourceCppWrapper:B).cpp.obj ;
            compiled += $(comp) ;
            CompiledCode $(comp) : $(genSourceCppWrapper) : $(config) : : 
$(ppdefs) ; 
        } 
    }
 
    Depends $(target) : $(compiled) ;
    ... 
 
    # When using multiple CPUs/threads, make sure no .obj in the same 
project
    # is built at the same time (to avoid multiple access to .pdb).
    JAM_SEMAPHORE on $(compiled) = $(projectName:G=semaphore) ;
 
    # Delete files that can't be built.
    # It seems to be useful when .pch is invalid, in that case the 
    # .lib/.dll/.exe is still there even if it fails to build.
    RMOLD $(target) ;
}

Part of my output for dependency are

4 Name: z:\Intermediate\DebugTools\seed_language_test\seed_class.cpp.obj
1>             : Updating it
1>             : Depends on 
.\Techno5thGen\UnitTests\seed_language_test\seed\seed_class.cpp (update)
1>             : Depends on 
.\Techno5thGen\UnitTests\seed_language_test\seed\seed_class.cpp (internal 
node) (update)
1>->      5 Name: 
.\Techno5thGen\UnitTests\seed_language_test\seed\seed_class.cpp
1>              : Updating it
1>              : Depends on 
.\Techno5thGen\UnitTests\seed_language_test\seed\seed_class.seedunittest 
(old) (max time)
1>->       6 Name: 
.\Techno5thGen\UnitTests\seed_language_test\seed\seed_class.seedunittest
1>               : Outdated, updating it
1>               : Depends on z:\test1.txt2 (newer) (max time)
1>          7 Name: z:\test1.txt2
1>                : Newer <------------------------------------------  Why 
is this always newer?  The date doesnt change on the disk...

Olivier Pomerleau
Game Programmer
Artificial Mind & Movement