Radix cross Linux 3pp sources

#
# Project Home:
# ============
#   http://www.linuxfoundation.org/collaborate/workgroups/networking/net-tools
#   https://sourceforge.net/projects/net-tools/files/
#
# Downloads:
# =========
#   https://sourceforge.net/projects/net-tools/files/
#
# GitHub:
# ======
#    https://github.com/ecki/net-tools
#
# Clone:
# =====
#   git clone https://github.com/ecki/net-tools.git
#

url        = https://github.com/ecki

repo_name  = net-tools

#
# List of tags to be extracted:
# ============================
#
# Revisions from 'master' branch
#
# revision '68a4d784daaf5fb3449808e434e8cbb9625988e6' commited at 2014-02-18
#
#                                               hash | date
#            ----------------------------------------+--------
revisions  = 68a4d784daaf5fb3449808e434e8cbb9625988e6:20140218
revisions += 3f170bff115303e92319791cbd56371e33dcbf6d:20160127
revisions += 0eebece8c964e3cfa8a018f42b2e7e751a7009a0:20181103
revisions += 2fa1514a781945f252cec8313f0c8539777906f2:20210110
revisions += 4030929bb6f3ee6f465c76869d7a49424df45d9e:20211212

git_repo   = .git_clone

versions   = $(foreach tag, $(revisions), $(addprefix 1.60-, $(shell echo $(tag) | cut -f 2 -d ':')))

tarballs   = $(addsuffix .tar.xz, $(addprefix $(repo_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 revision in $(revisions) ; do \
	  hash=`echo $$revision | cut -f 1 -d ':'` ; \
	  date=`echo $$revision | cut -f 2 -d ':'` ; \
	  if [ ! -f $(repo_name)-1.60-$$date.tar.xz ]; then \
	    echo -e "\n======= Creating '$(repo_name)-1.60-$$date.tar.xz' snapshot =======" ; \
	    ( cd $(repo_name) && \
	      git archive --format=tar --prefix=$(repo_name)-1.60-$$date/ $$hash | \
	      xz >../$(repo_name)-1.60-$$date.tar.xz ) ; \
	  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)