###############################################################################
#                                   LFSMake                                   #
#                    by Rod Roark <rod@sunsetsystems.com>                     #
#                                                                             #
#                        Copyright (C) 2002 Rod Roark                         #
#                                                                             #
# See http://www.lfsmake.org/ for the most current standard version.          #
#                                                                             #
# These Makefiles are made available under the terms of the Artistic License, #
# found at http://www.opensource.org/licenses/artistic-license.html.          #
#                                                                             #
# $Id: Config 3663 2009-10-09 16:17:05Z owes $
#                                                                             #
###############################################################################

# URLs that are common sources of downloads.  If you're having trouble with
# a site you should change its URL to that of a suitable mirror site.
#
URL_CPAN	= http://www.cpan.org/modules/by-module
URL_AGNU	= ftp://alpha.gnu.org/gnu
URL_DEBIAN	= http://http.us.debian.org/debian/pool/main
URL_GNU		= http://ftp.gnu.org/gnu
URL_KERNEL	= http://www.kernel.org/pub
URL_LFS		= http://www.linuxfromscratch.org/patches/downloads
URL_LFS_DEV	= http://www.linuxfromscratch.org/patches/lfs/development
URL_CLFS11	= http://patches.cross-lfs.org/1.1.0
URL_BLFS	= http://www.linuxfromscratch.org/blfs/downloads
URL_HLFS	= http://www.linuxfromscratch.org/patches/hlfs/svn
URL_SFNET	= http://downloads.sourceforge.net/sourceforge

# For most packages tarballs are unpacked here and then deleted after
# installation.
#
DIR_SRC = $(LFS)/usr/src
DIR_PATCHES = $(DIR_SRC)/src/patches

# Files are downloaded into DIR_TMP and then moved to DIR_DL, to avoid
# messes with partially retrieved files.  DIR_DL is where we will
# save all the files that are downloaded.  DIR_INFO contains the
# file lists of installed packages.
#
DIR_DL      = $(LFS_BASEDIR)/cache
DIR_CHK     = $(LFS_BASEDIR)/cache/check
DIR_INFO    = $(LFS_BASEDIR)/log_$(MACHINE)
DIR_TEST    = $(LFS_BASEDIR)/test_$(MACHINE)/$(BUILDDATE)
DIR_TMP     = $(LFS_BASEDIR)/cache/tmp

###############################################################################
# Common Macro Definitions
###############################################################################

# For each package we create a list of files that it installed under 
# log/<TARGET> name. Modified files are not identified
#
define FIND_FILES
	cd $(LFS)/ && find -mount \
	-not -path './$(TOOLS_DIR)*' -not -path './tmp*' -not -path './usr/src*' \
	-not -path './dev*' -not -path './proc*' -not -path './install*'
endef

# This is common starting logic for builds.
#
ifneq "$(STAGE)" "toolchain"
define PREBUILD
	echo "====================================== Installing $(THISAPP) ..."
	@echo "Install started; saving file list to $(DIR_SRC)/lsalr ..."
	@if [ ! -f $(DIR_SRC)/lsalr ]; then $(FIND_FILES) > $(DIR_SRC)/lsalr; fi
endef
else
define PREBUILD
	echo "====================================== Installing $(THISAPP) ..."
endef
endif

# Common end-of-installation logic for Stage 2 and beyond.
#
ifneq "$(STAGE)" "toolchain"
define POSTBUILD
	@echo "Install done; saving file list to $(TARGET) ..."
	@$(FIND_FILES) > $(DIR_SRC)/lsalrnew
	@diff $(DIR_SRC)/lsalr $(DIR_SRC)/lsalrnew | grep '^> ' | sed 's+^> \./++' | sort > $(TARGET)_diff
	@mv -f $(DIR_SRC)/lsalrnew $(DIR_SRC)/lsalr
	# compare roofile ( same name as lfs script) with the list of installed files
	# special cases
	# - if the corresponding rootfile is not found, touch $(TARGET)_missing_rootfile
	# - on a partial rebuild without a new file inside TARGET_diff, just touch TARGET
	# $(TARGET)_diff : result of the diff
	# ROOTFILE : reference of include/exclude files
	# $(TARGET)_rootfile : ROOTFILE with KVER replacement
	# $(TARGET) : log result with {commented|include|added} files
	if [ -s "$(TARGET)_diff" ]; then \
		LFS_SCRIPT=$(firstword $(MAKEFILE_LIST)); \
		ROOTFILE=`find $(DIR_SRC)/config/rootfiles/common -maxdepth 1 -type f -name $$LFS_SCRIPT`; \
		if [ "$$ROOTFILE" = "" ]; then \
			ROOTFILE=`find $(DIR_SRC)/config/rootfiles/arch_$(MACHINE) -type f -name $$LFS_SCRIPT`; \
		fi; \
		if [ "$$ROOTFILE" = "" ]; then \
			touch $(TARGET)_missing_rootfile; \
			ROOTFILE=$(TARGET)_missing_rootfile ; \
			echo "error $$LFS_SCRIPT not found in config/rootfiles"; \
		fi; \
		sed -e "s/KVER/$(KVER)/g" -e "s/PERLVER/$(PERLVER)/g" -e "s/MACHINE/$(MACHINE)/g" $$ROOTFILE > $(TARGET)_rootfile; 	\
		perl /usr/local/bin/install-diff.pl $(TARGET)_diff $(TARGET)_rootfile > $(TARGET);	\
	else \
		touch $(TARGET); \
	fi
	@rm -f $(TARGET)_diff $(TARGET)_rootfile

	@echo "===================================== Install done for $(THISAPP)."
endef
else
define POSTBUILD

	@echo "===================================== Install done for $(THISAPP)."
	touch $(TARGET)
endef
endif

define CHECK
	@echo -e "$(MESSAGE)Check: $($(notdir $@))"
	wget -T 120 -t 1 --spider -nv $($(notdir $@)) -O /dev/null
	@touch $(DIR_CHK)/$(notdir $@)
endef

define LOAD
	@echo -e "$(MESSAGE)Download: $($(notdir $@))"
	wget -T 120 -t 1 -c -nv $($(notdir $@)) -O $(DIR_TMP)/$(notdir $@)
	if [ -e $(DIR_TMP)/$(notdir $@) ]; then \
		mv $(DIR_TMP)/$(notdir $@) $(DIR_DL); \
	else \
		echo "$@ failed to download"; \
		exit 1;\
	fi
endef

define MD5
	# error mean file signature don't match the one in lfs script
	# should be only the case when a md5 change but not the file name
	# _build_06_othersrc-list.log is used to build the list of all external packages
	if [ ! -e $(DIR_DL)/$@ ]; then \
		echo "$(DIR_DL)/$@ doesn't exist"; \
		exit 1; \
	elif [ "$($@_MD5)" = `md5sum $(DIR_DL)/$@ | awk '{ print $$1 }'` ]; then \
		echo "$@ checksum OK"; \
		echo "$@" >>$(DIR_INFO)/_build_06_othersrc-list.log; \
	else \
		echo "A new md5 has been published for $@"; \
		echo "Previous file is loaded again"; \
		wget -T 120 -t 1 -nv $($(notdir $@)) -O $(DIR_TMP)/$(notdir $@); \
		if [ "$($(notdir $@)_MD5)" = `md5sum $(DIR_TMP)/$(notdir $@) | awk '{ print $$1 }'` ]; then \
			mv $(DIR_TMP)/$(notdir $@) $(DIR_DL); \
			echo "$@ checksum OK"; \
			echo "$@" >>$(DIR_INFO)/_build_06_othersrc-list.log; \
		else \
			echo "$@ checksum still bad"; \
			exit 1; \
		fi; \
	fi
endef
