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source common.sh
clearStore
cp ./dependencies.nix ./dependencies.builder0.sh ./config.nix $TEST_HOME
cd $TEST_HOME
nix why-depends --derivation --file ./dependencies.nix input2_drv input1_drv
nix why-depends --file ./dependencies.nix input2_drv input1_drv
nix-build ./dependencies.nix -A input0_drv -o dep
nix-build ./dependencies.nix -o toplevel
FAST_WHY_DEPENDS_OUTPUT=$(nix why-depends ./toplevel ./dep)
PRECISE_WHY_DEPENDS_OUTPUT=$(nix why-depends ./toplevel ./dep --precise)
# Both outputs should show that `input-2` is in the dependency chain
echo "$FAST_WHY_DEPENDS_OUTPUT" | grepQuiet input-2
echo "$PRECISE_WHY_DEPENDS_OUTPUT" | grepQuiet input-2
# But only the “precise” one should refer to `reference-to-input-2`
echo "$FAST_WHY_DEPENDS_OUTPUT" | grepQuietInverse reference-to-input-2
echo "$PRECISE_WHY_DEPENDS_OUTPUT" | grepQuiet reference-to-input-2
<<<"$PRECISE_WHY_DEPENDS_OUTPUT" sed -n '2p' | grepQuiet "└───reference-to-input-2 -> "
<<<"$PRECISE_WHY_DEPENDS_OUTPUT" sed -n '3p' | grep " →" | grepQuiet "dependencies-input-2"
<<<"$PRECISE_WHY_DEPENDS_OUTPUT" sed -n '4p' | grepQuiet " └───input0: …" # in input-2, file input0
<<<"$PRECISE_WHY_DEPENDS_OUTPUT" sed -n '5p' | grep " →" | grepQuiet "dependencies-input-0" # is dependencies-input-0 referenced
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