build/new/build-system.jam

#  (C) Copyright David Abrahams 2001. Permission to copy, use, modify, sell and
#  distribute this software is granted provided this copyright notice appears in
#  all copies. This software is provided "as is" without express or implied
#  warranty, and with no claim as to its suitability for any purpose.
import project ;
import sequence ;
import modules ;
import feature ;

import builtin ;
import make ;

import site-config ;
import user-config ;

current-project = [ project.load "."  ] ;
if [ MATCH (--dump-projects) : [ modules.peek : ARGV ] ]
{
    project-root.print ;
}

build-request = [ build-request.from-command-line [ modules.peek : ARGV ] ] ;

targets = [ $(build-request).get-at 1 ] ;
properties = [ $(build-request).get-at 2 ] ;
expanded = [ build-request.expand $(properties) ] ;


root-target = [ $(current-project).target ] ;
virtual-targets = ;

if $(expanded) 
{
    for local p in $(expanded)
    {
        virtual-targets += [ $(root-target).generate [ feature.split $(p) ] ] ;
    }
}
else
{
    virtual-targets = [ $(root-target).generate ] ;
}


actual-targets = ;
for t in $(virtual-targets)
{
    actual-targets += [ $(t).actualize ] ;
}
DEPENDS all : $(actual-targets) ;

# If there are any targets in the command line, cause them to be updated
UPDATE $(targets) ;