# Copyright Vladimir Prus 2002-2006.
# Copyright Dave Abrahams 2005-2006.
# Copyright Rene Rivera 2005-2006.
# Copyright Douglas Gregor 2005.
#
# Distributed under the Boost Software License, Version 1.0.
#    (See accompanying file LICENSE_1_0.txt or copy at
#          http://www.boost.org/LICENSE_1_0.txt)

# Usage:
#
#   bjam [options] [install|stage]
#
#   Builds and installs Boost.
#
# Targets and Related Options:
#
#   install                 Install headers and compiled library files to the
#   =======                 configured locations (below).
#
#   --prefix=<PREFIX>       Install architecture independent files here.
#                           Default; C:\Boost on Win32
#                           Default; /usr/local on Unix. Linux, etc.
#
#   --exec-prefix=<EPREFIX> Install architecture dependent files here.
#                           Default; <PREFIX>
#
#   --libdir=<DIR>          Install library files here.
#                           Default; <EPREFIX>/lib
#
#   --includedir=<HDRDIR>   Install header files here.
#                           Default; <PREFIX>/include
#
#   stage                   Build and install only compiled library files
#   =====                   to the stage directory.
#
#   --stagedir=<STAGEDIR>   Install library files here
#                           Default; ./stage
#
# Other Options:
#
#   --builddir=DIR          Build in this location instead of building
#                           within the distribution tree. Recommended!
#
#   --toolset=toolset       Indicates the toolset to build with.
#
#   --show-libraries        Displays the list of Boost libraries that require
#                           build and installation steps, then exit.
#
#   --layout=<layout>       Determines whether to choose library names 
#                           and header locations such that multiple 
#                           versions of Boost or multiple compilers can
#                           be used on the same system.
#
#                               versioned (default) - Names of boost
#                               binaries include the Boost version
#                               number and the name and version of the
#                               compiler.  Boost headers are installed
#                               in a subdirectory of <HDRDIR> whose
#                               name contains the Boost version
#                               number.
#
#                               system - Binaries names do not include
#                               the Boost version number or the name
#                               and version number of the compiler.
#                               Boost headers are installed directly
#                               into <HDRDIR>.  This option is
#                               intended for system integrators who
#                               are building distribution packages.
#
#   --buildid=ID            Adds the specified ID to the name of built
#                           libraries.  The default is to not add anything.
#
#   --help                  This message.
#
#   --with-<library>        Build and install the specified <library>
#                           If this option is used, only libraries
#                           specified using this option will be built.
#
#   --without-<library>     Do not build, stage, or install the specified
#                           <library>. By default, all libraries are built.

# TODO:
#  - handle boost version
#  - handle python options such as pydebug

import modules ;
import set ;
import stage ;
import package ;
import path ;
import common ;
import os ;
import regex ;
import errors ;
import "class" : new ;
import common ;

constant BOOST_VERSION : 1.34.1 ;

local version-tag = [ MATCH "^([^.]+)[.]([^.]+)[.]([^.]+)" : $(BOOST_VERSION) ] ;
if $(version-tag[3]) = 0
{
    version-tag = $(version-tag[1-2]) ;
}

constant BOOST_VERSION_TAG : $(version-tag:J="_") ;

local default-build ;
if $(__file__:D) = ""
{
    default-build =
        debug release
        <threading>single <threading>multi
        <link>shared <link>static
        ;
    
    if [ os.name ] = NT
    {
        default-build += <runtime-link>shared <runtime-link>static ;
    }
}
else
{
    default-build =
        debug
        ;
}


rule handle-static-runtime ( properties * )
{    
    # This property combination is dangerous.
    # Ideally, we'd add constraint to default build,
    # so that user can build with property combination
    # by hand. But we don't have any 'constraint' mechanism
    # for default-build, so disable such builds in requirements.
    
    # For CW, static runtime is needed so that
    # std::locale works.
    if <link>shared in $(properties)
      && <runtime-link>static in $(properties)
        && ! ( <toolset>cw in $(properties) )    
    {
        return <build>no ;
    }
}


project boost
    : requirements <include>.
      # disable auto-linking for all targets here,
      # primarily because it caused troubles with V2
      <define>BOOST_ALL_NO_LIB=1
      # Used to encode variant in target name. See the
      # 'tag' rule below.
      <tag>@$(__name__).tag
      <conditional>@handle-static-runtime
            
    : usage-requirements <include>.
    : build-dir bin.v2
    : default-build $(default-build)
    ;

# Setup convenient aliases for all libraries.

all-libraries =
    [ MATCH .*libs/(.*)/build/.* : [ glob libs/*/build/Jamfile.v2 ] ]
    ;

# First, the complicated libraries: where the target name in
# Jamfile is different from directory name.
alias prg_exec_monitor : libs/test/build//boost_prg_exec_monitor ;
alias test_exec_monitor : libs/test/build//boost_test_exec_monitor ;
alias unit_test_framework : libs/test/build//boost_unit_test_framework ;
alias bgl-vis : libs/graps/build//bgl-vis ;
alias serialization : libs/serialization/build//boost_serialization ;
alias wserialization : libs/serialization/build//boost_wserialization ;

explicit prg_exec_monitor test_exec_monitor unit_test_framework
    bgl-vis serialization wserialization ;

for local l in $(all-libraries)
{
    if ! $(l) in test graph serialization
    {
        alias $(l) : libs/$(l)/build//boost_$(l) ;
        explicit $(l) ;
    }
}

alias headers : : : : <include>. ;


# Decides which libraries are to be installed by looking at --with-<library>
# --without-<library> arguments. Returns the list of directories under "libs"
# which must be built at installed.
rule libraries-to-install ( existing-libraries * )
{
   local argv = [ modules.peek : ARGV ] ;
   local with-parameter = [ MATCH --with-(.*) : $(argv) ] ;
   local without-parameter = [ MATCH --without-(.*) : $(argv) ] ;

   # Do some checks
   if $(with-parameter) && $(without-parameter)
   {
       ECHO "error: both --with-<library> and --without-<library> specified" ;
       EXIT ;
   }

   local wrong = [ set.difference $(with-parameter) : $(existing-libraries) ] ;
   if $(wrong)
   {
       ECHO "error: wrong library name '$(wrong[1])' in the --with-<library> option." ;
       EXIT ;
   }
   local wrong = [ set.difference $(without-parameter) : $(existing-libraries) ] ;
   if $(wrong)
   {
       ECHO "error: wrong library name '$(wrong[1])' in the --without-<library> option." ;
       EXIT ;
   }

   if $(with-parameter)
   {
       return [ set.intersection $(existing-libraries) : $(with-parameter) ] ;
   }
   else
   {
       return [ set.difference $(existing-libraries) : $(without-parameter) ] ;
   }
}

# what kind of layout are we doing?
layout = [ MATCH "^--layout=(.*)" : [ modules.peek : ARGV ] ] ;
layout ?= versioned ;
layout-$(layout) = true ;

# possible stage only location
local stage-locate = [ MATCH "^--stagedir=(.*)" : [ modules.peek : ARGV ] ] ;
stage-locate ?= stage ;

path-constant BOOST_STAGE_LOCATE : $(stage-locate) ;


# location of python
local python-root = [ MATCH "^--with-python-root=(.*)" : [ modules.peek : ARGV ] ] ;
PYTHON_ROOT ?= $(python-root) ;

# Select the libraries to install.
libraries = [ libraries-to-install $(all-libraries) ] ;

if --show-libraries in [ modules.peek : ARGV ]
{
    ECHO "The following libraries require building:" ;
    for local l in $(libraries)
    {
        ECHO "    - $(l)" ;
    }
    EXIT ;
}

# Custom build ID.
local build-id = [ MATCH "^--buildid=(.*)" : [ modules.peek : ARGV ] ] ;
if $(build-id)
{
    constant BUILD_ID : [ regex.replace $(build-id) "[*\\/:.\"\' ]" "_" ] ;
}

# This rule is called by Boost.Build to determine the name of
# target. We use it to encode build variant, compiler name and
# boost version in the target name
rule tag ( name : type ? : property-set )
{
    if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB
    {
        if $(layout) = versioned
        {
            local result = [ common.format-name
                <base> <toolset> <threading> <runtime> -$(BOOST_VERSION_TAG)
                -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
            
            # Optionally add version suffix.
            # On NT, library with version suffix won't be recognized
            # by linkers. On CYGWIN, we get strage duplicate symbol
            # errors when library is generated with version suffix.
            # On OSX, version suffix is not needed -- the linker expets
            # libFoo.1.2.3.dylib format.
            # AIX linkers don't accept version suffixes either.
            if $(type) = SHARED_LIB &&
              ! ( [ $(property-set).get <target-os> ] in windows cygwin darwin aix )
            {
                result = $(result).$(BOOST_VERSION)  ;
            }
            
            return $(result) ;
        }
        else
        {
            return [ common.format-name
                <base> <threading> <runtime> -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
        }
    }
}

# Install to system location.

local install-requirements =
    <install-source-root>boost
    ;
if $(layout-versioned)
{
    install-requirements += <install-header-subdir>boost-$(BOOST_VERSION_TAG)/boost ;
}
else
{
    install-requirements += <install-header-subdir>boost ;
}
if [ modules.peek : NT ]
{
    install-requirements += <install-default-prefix>C:/Boost ;
}
else if [ modules.peek : UNIX ]
{
    install-requirements += <install-default-prefix>/usr/local ;
}

local headers =
    [ path.glob-tree boost : *.hpp *.ipp *.h *.inc : CVS ]
    [ path.glob-tree boost/compatibility/cpp_c_headers : c* : CVS ]
    [ path.glob-tree boost/test/utils/runtime : *.cpp : CVS ]
    [ path.glob-tree boost/spirit/tree :
        parsetree.dtd : CVS ]
    [ path.glob-tree boost/tr1/tr1 :
        algorithm array bitset complex deque exception fstream functional
        iomanip ios iostream istream iterator limits list locale map
        memory new numeric ostream queue random regex set sstream stack
        stdexcept streambuf string strstream tuple type_traits typeinfo
        utility valarray vector *.SUNWCCh : CVS ]
    ;


# Complete install
package.install install-proper
    :   $(install-requirements) <install-no-version-symlinks>on
    :
    :   libs/$(libraries)/build
    :   $(headers)
    ;
explicit install-proper ;

# Install just library.
install stage-proper
    :   libs/$(libraries)/build
    :   <location>$(stage-locate)/lib
        <install-dependencies>on <install-type>LIB 
        <install-no-version-symlinks>on
    ;
explicit stage-proper ;


if $(layout-versioned) 
  && ( [ modules.peek : NT ] || [ modules.peek : UNIX ] )
{
    rule make-unversioned-links ( project name ? : property-set : sources * )
    {
        local result ;
        local filtered ;
        local pattern ;        
        local nt = [ modules.peek : NT ] ;
        
        # Collect the libraries that have the version number in 'filtered'.
        for local s in $(sources)
        {
            local m ;
            if $(nt)
            {
                m = [ MATCH "(.*[.]lib)" : [ $(s).name ] ] ;
            }
            else
            {
                m = [ MATCH "(.*[.]so[.0-9]+)" "(.*[.]a)" : [ $(s).name ] ] ;
            }            
            if $(m)
            {
                filtered += $(s) ;
            }
        }
        
        # Create hardlinks without version.
        for local s in $(filtered)
        {
            local name = [ $(s).name ] ;
            local ea = [ $(s).action ] ;
            local ep = [ $(ea).properties ] ;
            local a  = [
              new non-scanning-action $(s) : common.hard-link : $(ep) ] ;
            
            local noversion-file ;
            if $(nt)
            {
                noversion-file = [ MATCH "(.*)-[0-9_]+([.]lib)" : $(name) ] ;
            }
            else
            {
                noversion-file = 
                  [ MATCH "(.*)-[0-9_]+([.]so)[.0-9]*" : $(name) ] 
                  [ MATCH "(.*)-[0-9_]+([.]a)" : $(name) ] 
                  [ MATCH "(.*)-[0-9_]+([.]dll[.]a)" : $(name) ] ;
            }
                        
            local new-name = 
               $(noversion-file[1])$(noversion-file[2]) ;
            result += [ new file-target $(new-name) exact : [ $(s).type ] : $(project)
                    : $(a) ] ;

        }
        return $(result) ;
    }    
            
    generate stage-unversioned : stage-proper : 
      <generating-rule>@make-unversioned-links ;
    explicit stage-unversioned ;
    
    generate install-unversioned : install-proper : 
      <generating-rule>@make-unversioned-links ;
    explicit install-unversioned ;
}
else
{
    # Create do-nothing aliases
    alias stage-unversioned ;
    alias install-unversioned ;
}

alias install : install-proper install-unversioned ;
alias stage : stage-proper stage-unversioned ;
explicit install ;
explicit stage ;


# Just build the libraries, don't install them anywhere.
# This is what happens with just "bjam --v2".
alias build_all : libs/$(libraries)/build ;

# This rule should be called from libraries' Jamfiles and will
# create two targets, "install" and "stage", that will install
# or stage that library. The --prefix option is respected, by
# --with and --without options, naturally, are ignored.
#
# - libraries -- list of library targets to install.
rule boost-install ( libraries * )
{
    package.install install
        : <dependency>/boost//install-headers $(install-requirements)
        : # No binaries
        : $(libraries)
        : # No headers, it's handled by the dependency
    ;

    install stage : $(libraries) : <location>$(BOOST_STAGE_LOCATE) ;

    local c = [ project.current ] ;
    local project-module = [ $(c).project-module ] ;
    module $(project-module)
    {
        explicit stage ;
    }
}

# Make project ids of all libraries known.
for local l in $(libraries)
{
    use-project /boost/$(l) : libs/$(l)/build ;
}