# Haiku Jamrules

# Make sure we are on a sane version of Jam.
if ! [ Match "(.*)-haiku-(.*)" : $(JAMVERSION) ] {
	Exit "You can only build Haiku with Haiku's Jam, not Perforce Jam or"
		"some other variant (you are using $(JAMVERSION))." ;
}

# Make sure we are on a recent Jambase.
if $(JAMBASEDATE) < 2018 {
	Exit "Your Jambase is too old ($(JAMBASEDATE)); please update it (likely"
		"by updating Jam itself.)" ;
}

# Make sure HAIKU_TOP is a relative path (and prefer it to be the current or
# parent directory.)
#
# This is done so that invocations to the compiler and other tools, which
# under some circumstances inject the source's path into the generated file,
# are passed relative paths, making builds more reproducible.
if $(HAIKU_TOP) != "." && $(HAIKU_TOP) != ".."
		&& ! [ Match "\\.\\./(.*)" : $(HAIKU_TOP) ] {
	Exit "The present path to the project root is '$(HAIKU_TOP)', but you"
		"must be in the project root or a \"generated\" directory in order to"
		"build Haiku."

		"(If you are, and are still seeing this message, run "
		"\"../configure --update\" to solve the issue.)" ;
}

# Main directories used by the build.
HAIKU_OUTPUT_DIR					?= [ FDirName $(HAIKU_TOP) generated ] ;
HAIKU_BUILD_OUTPUT_DIR				?= [ FDirName $(HAIKU_OUTPUT_DIR) build ] ;
HAIKU_BUILD_DIR						?= [ FDirName $(HAIKU_TOP) build ] ;
HAIKU_BUILD_RULES_DIR				?= [ FDirName $(HAIKU_BUILD_DIR) jam ] ;
HAIKU_OBJECT_DIR					?= [ FDirName $(HAIKU_OUTPUT_DIR)
											objects ] ;
HAIKU_CATALOGS_OBJECT_DIR			?= [ FDirName $(HAIKU_OBJECT_DIR)
											catalogs ] ;
HAIKU_COMMON_PLATFORM_OBJECT_DIR	?= [ FDirName $(HAIKU_OBJECT_DIR) common ] ;
HAIKU_DOWNLOAD_DIR					?= [ FDirName $(HAIKU_OUTPUT_DIR)
											download ] ;
HAIKU_OPTIONAL_BUILD_PACKAGES_DIR	?= [ FDirName $(HAIKU_OUTPUT_DIR)
											build_packages ] ;

# Absolutely rooted versions of some of the main directories
HAIKU_ABSOLUTE_TOP					?= [ FDirName $(PWD) $(HAIKU_TOP) ] ;
HAIKU_ABSOLUTE_OUTPUT_DIR			?= [ FDirName $(PWD) $(HAIKU_OUTPUT_DIR) ] ;

# Cache files for header scanning and jamfile caching
HCACHEFILE = header_cache ;
JCACHEFILE = jamfile_cache ;
LOCATE on $(HCACHEFILE) $(JCACHEFILE) = $(HAIKU_BUILD_OUTPUT_DIR) ;

# include BuildConfig
local buildConfig = [ GLOB $(HAIKU_BUILD_OUTPUT_DIR) : BuildConfig ] ;
if ! $(buildConfig) {
	ECHO "No `BuildConfig' found in $(HAIKU_BUILD_OUTPUT_DIR)!" ;
	EXIT "Run ./configure in the source tree's root directory first!" ;
}
LOCATE on BuildConfig = $(HAIKU_BUILD_OUTPUT_DIR) ;
include BuildConfig ;

# set HAIKU_PACKAGING_ARCH, the primary packaging architecture
HAIKU_PACKAGING_ARCH = $(HAIKU_PACKAGING_ARCHS[1]) ;

# The build setup and rules are neatly organized in several files. Include
# them now. Start with the side-effect-less rules, since they are the most
# likely to be used in the top level context (i.e. not only in rules).
# At the end include BuildSetup that sets up global variables etc. The
# optional user-defined UserBuildConfig is included thereafter.
include [ FDirName $(HAIKU_BUILD_RULES_DIR) HelperRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) MathRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) ArchitectureRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) BeOSRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) BuildFeatureRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) LocaleRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) CommandLineArguments ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) ConfigRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) FileRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) HeadersRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) KernelRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) BootRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) ImageRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) CDRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) MainBuildRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) MiscRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) OverriddenJamRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) PackageRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) RepositoryRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) SystemLibraryRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) TestsRules ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) BuildSetup ] ;
include [ FDirName $(HAIKU_BUILD_RULES_DIR) DefaultBuildProfiles ] ;

# Declare no-op user-overridable build rules.
rule UserBuildConfigRulePostBuildTargets	{ }
rule UserBuildConfigRulePreImage			{ }
rule UserBuildConfigRulePostImage			{ }

# Include UserBuildConfig.
if ! $(HAIKU_IGNORE_USER_BUILD_CONFIG) {
	local userBuildConfig
		= [ GLOB $(HAIKU_BUILD_RULES_DIR) : UserBuildConfig ] ;
	if $(userBuildConfig) {
		include $(userBuildConfig) ;
	}

	# allow for a separate UserBuildConfig per output directory
	local userBuildConfig
		= [ GLOB $(HAIKU_OUTPUT_DIR) : UserBuildConfig ] ;
	if $(userBuildConfig) {
		include $(userBuildConfig) ;
	}
}

# Include the repositories for this architecture.
local repositoriesDirectory
	= [ FDirName $(HAIKU_BUILD_RULES_DIR) repositories ] ;
local repositories = HaikuPorts ;
if $(HAIKU_BUILD_TYPE) = bootstrap {
	repositories = HaikuPortsCross ;
}

local repository ;
for repository in $(repositories) {
	local repositoryDirectory
		= [ FDirName $(repositoriesDirectory) $(repository) ] ;
	local file = [ Glob $(repositoryDirectory) : $(HAIKU_PACKAGING_ARCH) ] ;
	if $(file) {
		HAIKU_REPOSITORY_JAMFILE = $(file) ;
		include $(file) ;
	}
}

DefineDefaultBuildProfiles ;

PrepareConfigVariables ;