stockholm/Makefile

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Makefile
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#
# usage:
# make system=foo
# make systems='foo bar'
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# make eval system=foo get=config.networking.extraHosts [filter=json]
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#
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.ONESHELL:
.SHELLFLAGS := -eufc
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ifdef systems
$(systems):
parallel \
--line-buffer \
-j0 \
--no-notice \
--tagstring {} \
-q make systems= system={} ::: $(systems)
else ifdef system
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.PHONY: deploy
deploy:;@
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make eval system=$(system) get=config.krebs.build.script filter=json | sh
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.PHONY: eval
eval:
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@
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ifeq ($(filter),json)
extraArgs=--json
filter() { jq -r .; }
else
filter() { cat; }
endif
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NIX_PATH=stockholm=$$PWD:$$NIX_PATH \
nix-instantiate \
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$${extraArgs-} \
$${json+--json} \
$${json+--strict} \
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--eval \
-A "$$get" \
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'<stockholm>' \
--argstr user-name "$$LOGNAME" \
--argstr system-name "$$system" \
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| filter
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else
$(error unbound variable: system[s])
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endif