MakeTarball

################################################################################
# Create a tarball for binary archive from an installed Ginger system.
################################################################################

# Idiom for getting hold of the name of this makefile.
THISMAKEFILE := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
ANDMAKE := $(MAKE) -f $(THISMAKEFILE)

INSTALLED_BASE := /usr/local
INSTALLED_SHARE := $(INSTALLED_BASE)/share/ginger
INSTALLED_TOOLS := $(INSTALLED_BASE)/libexec/ginger
INSTALLED_BIN := $(INSTALLED_BASE)/bin

TB_BUILD_DIR := _build
TB_PACKAGE := ginger
TB_PREFIX_DIR := usr/local

TB_ROOT_DIR := $(TB_BUILD_DIR)/$(TB_PACKAGE)_files
TB_USR_DIR := $(TB_ROOT_DIR)/$(TB_PREFIX_DIR)

TB_SHARE_DIR := $(TB_USR_DIR)/share/$(TB_PACKAGE)
TB_TOOLS_DIR := $(TB_USR_DIR)/libexec/$(TB_PACKAGE)
TB_BIN_DIR := $(TB_USR_DIR)/bin

TB_WRAP_DIR := $(TB_BUILD_DIR)/$(TB_PACKAGE)
TB_BUILD_INFO_FILE := $(TB_WRAP_DIR)/BUILD_INFO.txt

TB_USR_TARBALL := $(TB_WRAP_DIR)/$(TB_PACKAGE)-files.tgz
TB_WRAP_TARBALL := $(TB_BUILD_DIR)/$(TB_PACKAGE).tgz

tarball-clean:
	mkdir -p $(TB_BUILD_DIR)
	rm -f $(TB_WRAP_TARBALL)
	rm -rf $(TB_ROOT_DIR)
	rm -rf $(TB_WRAP_DIR)

tarball-as-is:
	$(ANDMAKE) set-up
	
	$(ANDMAKE) copy-executables
	$(ANDMAKE) copy-tools
	$(ANDMAKE) copy-share

	$(ANDMAKE) build-info
	$(ANDMAKE) package-tarballs

set-up:
	$(ANDMAKE) tarball-clean
	mkdir -p $(TB_WRAP_DIR)
	mkdir -p $(TB_TOOLS_DIR)
	mkdir -p $(TB_BIN_DIR)
	mkdir -p $(TB_SHARE_DIR)
	( cd build_template; tar cf - . ) | ( cd $(TB_WRAP_DIR); tar xf - )

copy-executables:
	cp $(INSTALLED_BIN)/ginger $(TB_BIN_DIR)
	cp $(INSTALLED_BIN)/ginger-* $(TB_BIN_DIR)

copy-share:
	( cd $(INSTALLED_SHARE); tar cf - . ) | ( cd $(TB_SHARE_DIR); tar xf - )

copy-tools:
	( cd $(INSTALLED_TOOLS); tar cf - . ) | ( cd $(TB_TOOLS_DIR); tar xf - )


package-tarballs:
	( cd $(TB_USR_DIR); tar cf - . ) | gzip > $(TB_USR_TARBALL)
	( cd $(TB_BUILD_DIR); tar cf - $(TB_PACKAGE) ) | gzip > $(TB_WRAP_TARBALL)

build-info:
	touch $(TB_BUILD_INFO_FILE)
	echo "Ginger Tarball Build-time Information" >> $(TB_BUILD_INFO_FILE)
	echo "-------------------------------------" >> $(TB_BUILD_INFO_FILE)
	echo "date         : " `date` >> $(TB_BUILD_INFO_FILE)
	echo "uname -mn    : " `uname -mn` >> $(TB_BUILD_INFO_FILE)
	echo "uname -rsv   : " `uname -rsv` >> $(TB_BUILD_INFO_FILE)
	( cd $(TB_ROOT_DIR); echo "space needed : " `du -shc | grep total` ) >> $(TB_BUILD_INFO_FILE)