package MozBuildFlags;

require 5.004;
require Exporter;

# Package that attempts to read a file from the Preferences folder,
# and get build settings out of it

use strict;
use Exporter;

use MozPrefs;

use vars qw(@ISA @EXPORT);

@ISA      = qw(Exporter);
@EXPORT   = qw(SetupBuildParams);


#-------------------------------------------------------------------------------
# These 3 arrays are the 'master lists' to control what gets built.
# We use arrays here, instead of just intializing the hashes directly,
# so that we can start the build at a given stage using a stored key.
# 
# Ordering in these arrays is important; it has to reflect the order in
# which the build occurs.
#-------------------------------------------------------------------------------

my(@pull_flags) =
(
  ["moz",          1],    # pull everything needed for mozilla
  ["runtime",      0]     # used to just build runtime libs, up to NSPR
);

my(@build_flags) =
(
  ["all",           1],
  ["dist",          0],
  ["dist_runtime",  0],
  ["xpidl",         0],
  ["idl",           0],
  ["stubs",         0],
  ["runtime",       0],
  ["common",        0],
  ["imglib",        0],
  ["necko",         0],
  ["security",      0],
  ["browserutils",  0],
  ["intl",          0],
  ["nglayout",      0],
  ["editor",        0],
  ["viewer",        0],
  ["xpapp",         0],
  ["extensions",    0],
  ["plugins",       0],
  ["mailnews",      0],
  ["apprunner",     0],
  ["resources",     0],
  ["jars",          0]
);

my(@options_flags) = 
(
  ["transformiix",  0],
  ["mathml",        0],
  ["svg",           0],
  ["mng",           1],
  ["ldap",          0],
  ["xmlextras",     0],
  ["mailextras",    1],     # mail importers
  ["xptlink",       0]      # xpt linker codewarrior plugin
);


#-------------------------------------------------------------------------------
# End of build flags
#-------------------------------------------------------------------------------





#-------------------------------------------------------------------------------
# flagsArrayToHash
# 
# Utility routine to migrate flag from a 2D array to a hash, where
# item[n][0] is the hash entry name, and item[n][1] is the hash entry value.
#-------------------------------------------------------------------------------

sub flagsArrayToHash($$)
{
  my($src_array, $dest_hash) = @_;
  
  my($item);
  foreach $item (@$src_array)
  {
    $dest_hash->{$item->[0]} = $item->[1];
  }
}

#-----------------------------------------------
# printHash
#
# Utility routine to print a hash
#-----------------------------------------------
sub printHash($)
{
	my($hash_ref) = @_;
 
  my($key, $value);
  
  while (($key, $value) = each %$hash_ref)
  {
    print "$key $value\n";
  }
}


#-------------------------------------------------------------------------------
# SetPullFlags
#-------------------------------------------------------------------------------
sub SetPullFlags($)
{
  my($pull) = @_;
  
  flagsArrayToHash(\@pull_flags, $pull);
}

#-------------------------------------------------------------------------------
# SetBuildFlags
#-------------------------------------------------------------------------------
sub SetBuildFlags($)
{
  my($build) = @_;

  flagsArrayToHash(\@build_flags, $build);
}

#-------------------------------------------------------------------------------
# SetBuildOptions
#-------------------------------------------------------------------------------
sub SetBuildOptions($)
{
  my($options) = @_;

  flagsArrayToHash(\@options_flags, $options);
}

#-------------------------------------------------------------------------------
# SetupBuildParams
#-------------------------------------------------------------------------------
sub SetupBuildParams($$$)
{
  my($pull, $build, $options) = @_;
    
	SetPullFlags($pull);
	SetBuildFlags($build);
	SetBuildOptions($options);

  print "Build before:\n";
  printHash($build);

  # read the user pref file, that can change values in the array
  ReadMozUserPrefs("Mozilla build prefs", $pull, $build, $options);
	
  print "Build after:\n";
  printHash($build);
}


1;