summaryrefslogtreecommitdiffstats
path: root/Makefile
blob: f2583078902c75f7c560a0672ddc26713a3f358e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
stockholm ?= .

export HOSTNAME ?= $(shell cat /proc/sys/kernel/hostname)

export STOCKHOLM_VERSION ?= $(shell \
	version=git.$$(git describe --always --dirty); \
	case $$version in (*-dirty) version=$$version@$$HOSTNAME; esac; \
	date=$$(date +%y.%m); \
	printf '%s' "$$date.$$version"; \
)

system ?= $(HOSTNAME)
$(if $(system),,$(error unbound variable: system))

nixos-config ?= $(stockholm)/$(LOGNAME)/1systems/$(system)/config.nix
ifneq ($(words $(wildcard $(nixos-config))),1)
$(error bad nixos-config: $(nixos-config))
endif

# target = [target_user@]target_host[:target_port][/target_path]
ifdef target
_target_user != echo $(target) | sed -n 's/@.*//p'
_target_path != echo $(target) | sed -n 's/^[^/]*//p'
_target_port != echo $(target) | sed -En 's|^.*:([^/]*)(/.*)?$$|\1|p'
_target_host != echo $(target) | sed -En 's/^(.*@)?([^:/]*).*/\2/p'
ifneq ($(_target_host),)
$(if $(target_host),$(error cannot define both, target_host and host in target))
target_host ?= $(_target_host)
endif
ifneq ($(_target_user),)
$(if $(target_user),$(error cannot define both, target_user and user in target))
target_user ?= $(_target_user)
endif
ifneq ($(_target_port),)
$(if $(target_port),$(error cannot define both, target_port and port in target))
target_port ?= $(_target_port)
endif
ifneq ($(_target_path),)
$(if $(target_path),$(error cannot define both, target_path and path in target))
target_path ?= $(_target_path)
endif
endif

target_host ?= $(system)
target_user ?= root
target_port ?= 22
target_path ?= /var/src

$(if $(target_host),,$(error unbound variable: target_host))
$(if $(target_user),,$(error unbound variable: target_user))
$(if $(target_port),,$(error unbound variable: target_port))
$(if $(target_path),,$(error unbound variable: target_path))

whatsupnix = \
	if type whatsupnix >/dev/null 2>&1; then \
	  whatsupnix $(1); \
	else \
	  cat; \
	fi

build = \
	nix-build \
		-Q \
		--no-out-link \
		--show-trace \
		-I nixos-config=$(nixos-config) \
		-I stockholm=$(stockholm) \
		-E "with import <stockholm>; $(1)" \
		$(2) \
	|& $(call whatsupnix)

evaluate = \
	nix-instantiate \
		--eval \
		--readonly-mode \
		--show-trace \
		-I nixos-config=$(nixos-config) \
		-I stockholm=$(stockholm) \
		-E "let eval = import <stockholm>; in with eval; $(1)" \
		$(2)

ifeq ($(MAKECMDGOALS),)
$(error No goals specified)
endif

# usage: make deploy system=foo [target=bar]
# usage: make test system=foo target=bar
deploy test:
ifdef target
	nix-shell --run '$@ --system=$(system) --target=$(target)'
else
	nix-shell --run '$@ --system=$(system)'
endif

# usage: make populate system=foo
populate: populate-target = \
	$(target_user)@$(target_host):$(target_port)$(target_path)
ifeq ($(debug),true)
populate: populate-flags += --debug
endif
ifneq ($(ssh),)
populate: populate-flags += --ssh=$(ssh)
endif
populate:
	nix-instantiate \
		--eval \
		--json \
		--readonly-mode \
		--show-trace \
		--strict \
		$(LOGNAME)/1systems/$(system)/source.nix | \
	populate $(populate-target) $(populate-flags)

# usage: make pkgs.populate
pkgs:;@$(error no package selected)
pkgs.%:;@$(call build,$@)

# usage: make LOGNAME=krebs system=wolf eval.config.krebs.build.host.name
eval eval.:;@$(call evaluate,$${expr-eval})
eval.%:;@$(call evaluate,$@)

# usage: make install system=foo [target_host=bar]
install: ssh ?= ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null
install:
	$(ssh) $(target_user)@$(target_host) -p $(target_port) \
		env target_path=$(target_path) \
			sh -s prepare < krebs/4lib/infest/prepare.sh
	$(MAKE) populate target_path=/mnt$(target_path)
	$(ssh) $(target_user)@$(target_host) -p $(target_port) \
		env NIXOS_CONFIG=$(target_path)/nixos-config \
				STOCKHOLM_VERSION="$$STOCKHOLM_VERSION" \
			nixos-install