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#
# usage:
# make infest system=foo [target=bar]
# make [deploy] system=foo [target=bar]
# make [deploy] systems='foo bar'
# make eval get=users.tv.wu.config.time.timeZone [filter=json]
#
.ONESHELL:
.SHELLFLAGS := -eufc
ifdef systems
$(systems):
@
unset target
parallel \
--line-buffer \
-j0 \
--no-notice \
--tagstring {} \
-q make -s systems= system={} ::: $(systems)
else ifdef system
.PHONY: deploy infest
deploy infest:;@
export get=krebs.$@
export filter=json
script=$$(make -s eval)
echo "$$script" | sh
.PHONY: eval
eval:
@
ifeq ($(filter),json)
extraArgs='--json --strict'
filter() { jq -r .; }
else
filter() { cat; }
endif
result=$$(nix-instantiate \
$${extraArgs-} \
--eval \
-A "$$get" \
-I stockholm="$$PWD" \
'<stockholm>' \
--argstr current-date "$$(date -Is)" \
--argstr current-host-name "$$HOSTNAME" \
--argstr current-user-name "$$LOGNAME" \
$${system+--argstr system "$$system"} \
$${target+--argstr target "$$target"})
echo "$$result" | filter
export target_host ?= $(system)
export target_user ?= root
export target_path ?= /var/src
# usage: make populate system=foo [target_host=bar]
.PHONY: populate
populate: export lib = \
let nlib = import <nixpkgs/lib>; in \
nlib // import krebs/4lib { lib = nlib; } // builtins
populate: export source = \
with builtins; \
with (import ./. {}).users.$${getEnv "LOGNAME"}.$${getEnv "system"}; \
assert config.krebs.build.source-version == 2; \
config.krebs.build.source
populate:;@
result=$$(nix-instantiate \
--eval \
--json \
--arg lib "$$lib" \
--arg source "$$source" \
--argstr target-user "$$target_user" \
--argstr target-host "$$target_host" \
--argstr target-path "$$target_path" \
-A populate \
krebs/v2)
script=$$(echo "$$result" | jq -r .)
echo "$$script" | sh
# usage: make rebuild system=foo [target_host=bar] [operation=switch]
.PHONY: rebuild
rebuild: populate ;@set -x
ssh "$$target_user@$$target_host" \
nixos-rebuild "$${operation-switch}" -I "$$target_path"
else
$(error unbound variable: system[s])
endif
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