SSH/Config Makefile

Makefile

CP           := cp -p
CONFIG_FILES := $(wildcard conf.d/*.conf)
SSH_DIR      := $(HOME)/.ssh

define USAGE
Usage:
  it	make ~/.ssh/{config, keylist.txt}
  usage	show this
  help	same as usage
  update	git update
  list	list all conf.d/*.conf
  config	generate config from conf.d/*.conf
  keylist	show keylist from keylist.txt
  deploy	deploy config and keylist.txt to ~/.ssh/
  clean	remove config
endef
export USAGE

# failsafe
.PHONY: help usage
help usage:
	@echo "$$USAGE" | \
	column -t -s $$'\t'

.PHONY: it
it: config deploy clean;

.PHONY: list
list: $(CONFIG_FILES)
	@echo $^ | \
	xargs -n 1 echo

.PHONY: update
update:
	git fetch --prune
	git pull origin master

config: $(CONFIG_FILES)
	echo "# -*- ssh-config -*-" | \
	cat - $^ \
	> $@

keylist: keylist.txt
	grep -v '^#' $^

.PHONY: deploy
deploy: config keylist.txt
	$(CP) config $(SSH_DIR)
	$(CP) keylist.txt $(SSH_DIR)

.PHONY: clean
clean:
	# rm -f config

define SHQX
	perl -p -i -e 's/^# \$sh\((.*)\)$/ join "\n", qx{$1} /e' $1
endef

define STRIP
	grep -E -v '^(# -\*-|//)' $1
endef

just use Include since OpenSSH 7.3

• https://www.openssh.com/txt/release-7.3
• https://euske.github.io/openssh-jman/ssh_config.html