GSF=git submodule foreach
TIME=time

CHRONY_STATUS=chronyc tracking
CHRONY_STATS=chronyc sources -v

all: rebuild-switch
	date
##--------- Commandes spécifiques pour NixOS

clean:
	$(TIME) nix-collect-garbage -d --delete-older-than 15d

clean-aggressive:
	$(TIME) nix-collect-garbage -d --delete-older-than 1d

clean-total:
	$(TIME) nix-collect-garbage -d

clean-log:
	journalctl --flush --rotate
	journalctl --vacuum-size=1G

full-auto: submodules-update upgrade clean optimise
	@date

list-installed-packages:
	@# source : https://functor.tokyo/blog/2018-02-20-show-packages-installed-on-nixos
	@# https://www.domenkozar.com/2014/01/02/getting-started-with-nix-package-manager/
	@#nixos-option environment.systemPackages
	nixos-option environment.systemPackages | head -2 | tail -1 | sed -e 's/ /\n/g' | cut -d- -f2- | sort | uniq| sed -e 's/"$$//'

optimise:
	$(TIME) nix optimise-store

rebuild-build:
	nix-channel --add https://nixos.org/channels/nixos-19.03 nixos
	$(TIME) time nixos-rebuild build --fallback  --show-trace

rebuild-switch:
	$(TIME) time nixos-rebuild switch --fallback  --show-trace

show-blackholed:
	-@ip route |grep blackhole |wc -l| awk '{print "Il y a "$$1" route(s) en blackhole sur";system("hostname ")}' |cowsay

show-diff-with-current:
	-diff /run/current-system/configuration.nix /etc/nixos/configuration.nix

show-roots:
	nix-store --gc --print-roots

show-time:
	-@$(CHRONY_STATUS) && $(CHRONY_STATS)
	-@watch -d -n 5 "$(CHRONY_STATUS) && echo "--" && $(CHRONY_STATS)"

store-repair:
	$(TIME) nix-store --verify --check-contents --repair

upgrade:
	nix-channel --add https://nixos.org/channels/nixos-19.03 nixos
	$(TIME) nixos-rebuild switch --upgrade --fallback --show-trace

##--------- Commandes spécifiques pour NixOS -- Opérations non courantes

download-sources:
	# https://nixos.org/wiki/Download_all_sources
	nix-store -r $$(grep -l outputHash $$(nix-store -qR $$(nix-instantiate '<nixpkgs>' -A geeqie) | grep '.drv$$'))

build-iso:
	nix-build '<nixpkgs/nixos>' -A config.system.build.isoImage -I nixos-config=/etc/nixos/base/iso-image/livecd-minimal.nix

##--------- Commandes spécifiques pour GIT

push: submodules-push
	git push --all
	git push --tags

submodules-update:
	#git submodule update --remote
	#$(GSF) git co master
	$(GSF) git ff
	$(GSF) git gc --auto

submodules-push:
	$(GSF) git push --all
	$(GSF) git push --tags

submodules-tag:
	$(GSF) git tag -f "$$(date +%F)-$$(hostname -s)"

template:
	find . -name "*.nix" -exec meld /etc/nixos/base/module-template.nix {} \;

tag: submodules-tag
	git tag -f "$$(date +%F)-$$(hostname -s)"

##--------- Munin

munin:
	pushd /var/www/munin/ ; python -m SimpleHTTPServer 8000
##--------- Gestion d'un système de fichier monté en mémoire

tmpfs-create:
	mkdir -p /mnt/tmpfs

tmpfs-mount: tmpfs-create
	mount -t tmpfs -o size=10G tmpfs /mnt/tmpfs

tmpfs-umount:
	umount /mnt/tmpfs

tmpfs-destroy: tmpfs-umount
	rmdir /mnt/tmpfs

##- Test awesome
test-awesome:
	Xephyr :5 & sleep 1; DISPLAY=:5 awesome