haiku/build/jam/ImageRules

rule FSameTargetWithPrependedGrist
{
	# SameTargetWithPrependedGrist <target> : <grist to prepend> ;
	#
	local target = $(1) ;
	local gristToPrepend = $(2) ;
	local grist = $(target:G) ;

	if $(grist) {
		grist = $(gristToPrepend)!$(grist) ;
	} else {
		grist = $(gristToPrepend) ;
	}
	
	return $(target:G=$(grist)) ;
}

rule InitScript
{
	# Note: The script must have been LOCATEd before.
	local script = $(1) ;
	local initScript
		= [ FSameTargetWithPrependedGrist $(script) : init-script ] ;

	if ! [ on $(script) return $(__is_initialized) ] {
		__is_initialized on $(script) = true ;

		MakeLocate $(initScript) : [ on $(script) return $(LOCATE) ] ;
		Always $(initScript) ;
		Depends $(script) : $(initScript) ;

		InitScript1 $(initScript) ;
	}

	return $(initScript) ;
}

actions InitScript1
{
	rm -f $(1)
	echo -n > $(1)
}

rule AddVariableToScript
{
	# AddVariableToScript <script> : <variable> : <value> ;
	#
	local script = $(1) ;
	local variable = $(2) ;
	local value = $(3) ;

	InitScript $(script) ;

	VARIABLE_DEFS on $(script) += "echo $(variable)=\\\"$(value)\\\" >> " ;

	AddVariableToScript1 $(script) ;
}

actions together AddVariableToScript1
{
	$(VARIABLE_DEFS)$(1);
}

rule AddTargetVariableToScript
{
	# AddTargetVariableToScript <script> : <target> [ : <variable> ] ;
	#
	local script = $(1) ;
	local target = $(2) ;
	local variable = $(3:E=$(target:BS)) ;

	InitScript $(script) ;

	# That's not completely save, if one has more than on target with the
	# same base name. A unique pseudo target would have to be introduced
	# to do it more correctly.
	VARIABLE_NAME($(target:BS)) on $(script) = $(variable) ;

	Depends $(script) : $(target) ;
	AddTargetVariableToScript1 $(script) : $(target) ;
}

actions AddTargetVariableToScript1
{
	echo "$(VARIABLE_NAME($(2:BS)))=\"$(2)\"" >> $(1)
}


rule AddDirectoryToHaikuImage
{
	# AddDirectoryToHaikuImage <directory>
	local directoryTokens = $(1) ;
	local directory = [ FDirName $(directoryTokens) ] ;
	directory = $(directory:G=HaikuImage) ;

	if ! [ on $(directory) return $(__is_on_image) ] {
		INSTALL_DIRECTORIES on haiku-image-contents += $(directory) ;
		__is_on_image on $(directory) = true ;
		NotFile $(directory) ;
	
		# mark the parent dir as not to be created
		local parent = [ FReverse $(directoryTokens) ] ;
		parent = [ FReverse $(parent[2-]) ] ;
		if $(parent) {
			parent = [ FDirName $(parent) ] ;
			parent = $(parent:G=HaikuImage) ;
			DONT_CREATE on $(parent) = true ;
		}
	}

	return $(directory) ;
}

rule AddFilesToHaikuImage
{
	# AddFilesToHaikuImage <directory> : <targets> [ : dest name ]
	#
	local directory = [ AddDirectoryToHaikuImage $(1) ] ;
	local targets = $(2) ;
	local destName = $(3) ;

	INSTALL_DIR on $(targets) = $(directory) ;
	TARGETS_TO_INSTALL on $(directory) += $(targets) ;

	if $(destName) {
		INSTALL_TARGET_NAME on $(targets) = $(destName) ;
	}
}

rule AddSymlinkToHaikuImage
{
	# AddSymlinkToHaikuImage <directory> : <link target> [ : <link name> ] ;
	#
	local directory = [ AddDirectoryToHaikuImage $(1) ] ;
	local linkTarget = $(2) ;
	local linkName = $(3) ;

	if ! $(linkName) {
		local path = [ FReverse [ FSplitPath $(linkTarget) ] ] ;
		linkName = $(path[1]) ;
	}

	local link = $(directory)/$(linkName) ;
	SYMLINK_TARGET on $(link) = $(linkTarget) ;
	SYMLINKS_TO_INSTALL on $(directory) += $(link) ;
}

rule AddDriversToHaikuImage
{
	# AddDriversToHaikuImage <relative directory> : <targets> ;
	#
	local relativeDirectoryTokens = $(1) ;
	local targets = $(2) ;
	local directoryTokens = beos system add-ons kernel drivers dev
		$(relativeDirectoryTokens) ;

	AddFilesToHaikuImage beos system add-ons kernel drivers bin : $(targets) ;

	# get the relative symlink path prefix
	local linkPrefix = ;
	for i in $(relativeDirectoryTokens) {
		linkPrefix += .. ;
	}
	linkPrefix += .. bin ;

	# add the symlinks
	local name ;
	for name in $(targets:BS) {
		AddSymlinkToHaikuImage $(directoryTokens)
			: [ FDirName $(linkPrefix) $(name) ] : $(name) ;
	}
}

rule AddBootModuleSymlinks
{
	# AddBootModuleSymlinks <targets> ;
	#
	local targets = $(1) ;

	# add the symlinks
	local target ;
	for target in $(targets) {
		local installDir = [ on $(target) return $(INSTALL_DIR) ] ;

		if ! $(installDir) {
			Echo "ERROR: AddBootModuleSymlinks: Can't create a symlink to"
				"target" \"$(target)"\"." ;
			Exit "ERROR: Add*ToHaikuImage has not been invoked for it yet." ;
		}

		local name = $(target:BS) ;
		local linkTarget = [ FDirName /boot $(installDir:G=) $(name) ] ; 

		AddSymlinkToHaikuImage beos system add-ons kernel boot
			: $(linkTarget) : $(name) ;
	}
}

rule CreateHaikuImageMakeDirectoriesScript
{
	local script = $(1) ;
	MakeLocate $(script) : $(HAIKU_OUTPUT_DIR) ;
	Always $(script) ;

	local initScript = [ InitScript $(script) ] ;

	local scriptBody
		= [ FSameTargetWithPrependedGrist $(script) : script-body ] ;
	LOCATE on $(scriptBody) = [ on $(script) return $(LOCATE) ] ;
	Depends $(scriptBody) : $(initScript) ;
	Depends $(script) : $(scriptBody) ;
	
	local dirsToCreate ;
	local dir ;
	for dir in [ on haiku-image-contents return $(INSTALL_DIRECTORIES) ] {
		if ! [ on $(dir) return $(DONT_CREATE) ] {
			dirsToCreate += $(dir) ;
		}
	}

	Depends $(scriptBody) : $(dirsToCreate) ;
	CreateHaikuImageMakeDirectoriesScript1 $(scriptBody) : $(dirsToCreate) ;
}

actions piecemeal CreateHaikuImageMakeDirectoriesScript1
{
	echo \$mkdir -p "\"\${tPrefix}$(2:G=)\"" >> $(1)
}

rule CreateHaikuImageCopyFilesScript
{
	local script = $(1) ;
	MakeLocate $(script) : $(HAIKU_OUTPUT_DIR) ;
	Always $(script) ;

	local initScript = [ InitScript $(script) ] ;

	local scriptBody
		= [ FSameTargetWithPrependedGrist $(script) : script-body ] ;
	LOCATE on $(scriptBody) = [ on $(script) return $(LOCATE) ] ;
	Depends $(scriptBody) : $(initScript) ;
	Depends $(script) : $(scriptBody) ;

	local dir ;
	for dir in [ on haiku-image-contents return $(INSTALL_DIRECTORIES) ] {
		local targets = [ on $(dir) return $(TARGETS_TO_INSTALL) ] ;

		# filter the targets that shall be renamed; they have to be copied
		# individually
		local remainingTargets ;
		local target ;
		for target in $(targets) {
			local destName = [ on $(target) return $(INSTALL_TARGET_NAME) ] ;
			if $(destName) {
				# use a unique dummy target for this file, on which we
				# can define the TARGET_DIR variable
				local dummyTarget = $(script)-dummy-$(dir:G=)-$(target) ;
				NotFile $(dummyTarget) ;
				TARGET_DIR on $(dummyTarget) = $(dir:G=) ;
				INSTALL_TARGET_NAME on $(dummyTarget) = $(destName) ;
	
				Depends $(dummyTarget) : $(initScript) $(target) ;
				Depends $(script) : $(dummyTarget) ;

				AppendToHaikuImageCopyFilesScriptSingleFile $(dummyTarget)
					: $(initScript) $(target) ;
			} else {
				remainingTargets += $(target) ;
			}
		}
		targets = $(remainingTargets) ;

		if $(targets) {
			# use a unique dummy target for this directory, on which we
			# can define the TARGET_DIR variable
			local dummyTarget = $(script)-dummy-$(dir:G=) ;
			NotFile $(dummyTarget) ;
			TARGET_DIR on $(dummyTarget) = $(dir:G=) ;

			Depends $(dummyTarget) : $(initScript) $(targets) ;
			Depends $(script) : $(dummyTarget) ;

			OUTPUT_SCRIPT on $(dummyTarget) = $(initScript) ;
			AppendToHaikuImageCopyFilesScript $(dummyTarget) : $(targets) ;
		}
	
		local symlinks = [ on $(dir) return $(SYMLINKS_TO_INSTALL) ] ;
		local symlink ;
		for symlink in $(symlinks) {
			NotFile $(symlink) ;

			Depends $(script) : $(symlink) ;
			Depends $(symlink) : $(initScript) ;

			AddSymlinkToHaikuImageCopyFilesScript $(symlink) : $(initScript) ;
		}
	}
}

actions piecemeal AppendToHaikuImageCopyFilesScript bind OUTPUT_SCRIPT
{
	echo \$cp "\"\${sPrefix}$(2)\"" "\"\${tPrefix}$(TARGET_DIR)\"" >> $(OUTPUT_SCRIPT)
}

actions AppendToHaikuImageCopyFilesScriptSingleFile
{
	echo \$cp "\"\${sPrefix}$(2[2])\"" \
		"\"\${tPrefix}$(TARGET_DIR)/$(INSTALL_TARGET_NAME)\"" >> $(2[1])
}

actions AddSymlinkToHaikuImageCopyFilesScript
{
	echo \$ln -sf "\"$(SYMLINK_TARGET)\"" "\"\${tPrefix}$(1:G=)\"" >> $(2[1])
}

rule BuildHaikuImage
{
	# BuildHaikuImage <haiku image> : <scripts> : <is image> ;
	#
	local haikuImage = $(1) ;
	local scripts = $(2) ;
	local isImage = $(3) ;

	if $(isImage) = 1 || $(isImage) = true {
		IS_IMAGE on $(haikuImage) = 1 ;
	} else {
		IS_IMAGE on $(haikuImage) = "" ;
	}

	local mainScript = build_haiku_image ;
	SEARCH on $(mainScript) = [ FDirName $(HAIKU_TOP) build scripts ] ;

	Depends $(haikuImage) : $(mainScript) $(scripts) ;
	BuildHaikuImage1 $(haikuImage) : $(mainScript) $(scripts) ;
}

actions BuildHaikuImage1
{
	export isImage="$(IS_IMAGE)"
	$(2[1]) $(2[2-])
}