#
# Project Home:
# ============
# https://github.com/LunarG/gfxreconstruct
#
# Clone:
# =====
# https://github.com/LunarG/gfxreconstruct.git
#

url        = https://github.com/LunarG

repo_name  = gfxreconstruct
pkg_name   = gfxreconstruct
suffix     = tar.xz

versions   = 1.3.239.0

git_repo   = .git_clone
tarballs   = $(addsuffix .tar.xz, $(addprefix $(pkg_name)-, $(versions)))
sha1s      = $(addsuffix .sha1sum, $(tarballs))

TARGETS = repository_clean


all: $(TARGETS)

.PHONY: downloads_clean repository_clean

$(git_repo):
	@echo -e "\n======= Clone $(repo_name).git repository =======\n"
	@rm -rf $(repo_name)
	@git clone $(url)/$(repo_name).git $(repo_name)
	@touch $@

$(tarballs): $(git_repo)
	@for version in $(versions) ; do \
	  tag=sdk-`echo $$version` ; \
	  if [ ! -f $(repo_name)-$$version.$(suffix) ]; then \
	    echo -e "\n======= Creating '$(pkg_name)-$$version.$(suffix)' snapshot =======" ; \
	    ( cd $(repo_name) ; \
	      git submodule update --init ; \
	      git archive --format=tar --prefix=$(pkg_name)-$${version}/ --output=../$(pkg_name)-$${version}.tar $${tag} ; \
	      cmd="git submodule foreach --recursive 'git archive --format=tar --prefix=$(pkg_name)-$${version}/\$$sm_path/ HEAD --output=\$$toplevel/../$(pkg_name)-$${version}-sub-\$$sha1.tar'" ; \
	      eval $${cmd} ; \
	    ) ; \
	    tar --concatenate --file $(pkg_name)-$${version}.tar $(pkg_name)-$${version}-sub-*.tar ; \
	    rm -f $(pkg_name)-$${version}-sub-*.tar ; \
	    xz $(pkg_name)-$${version}.tar ; \
	  fi ; \
	done

$(sha1s): %.tar.xz.sha1sum : %.tar.xz
	@for tarball in $< ; do \
	  echo -e "\n======= Calculation the '$$tarball' sha1sum =======" ; \
	  sha1sum --binary $$tarball > $$tarball.sha1sum ; \
	done

repository_clean: $(sha1s)
	@echo -e "\n======= Remove cloned $(repo_name).git repository =======\n"
	@rm -rf $(git_repo) $(repo_name)

downloads_clean:
	@rm -rf $(tarballs) $(sha1s)
	@rm -rf $(git_repo) $(repo_name)