4fca02077c
If the options gc-keep-outputs and gc-keep-derivations are both enabled, you can get a cycle in the liveness graph. There was a hack to handle this, but it didn't work with multiple-output derivations, causing the garbage collector to fail with errors like ‘error: cannot delete path `...' because it is in use by `...'’. The garbage collector now handles strongly connected components in the liveness graph as a unit and decides whether to delete all or none of the paths in an SCC.
60 lines
2.1 KiB
Bash
60 lines
2.1 KiB
Bash
source common.sh
|
||
|
||
clearStore
|
||
|
||
# Test whether read-only evaluation works when referring to the
|
||
# ‘drvPath’ attribute.
|
||
echo "evaluating c..."
|
||
#drvPath=$(nix-instantiate multiple-outputs.nix -A c --readonly-mode)
|
||
|
||
# And check whether the resulting derivation explicitly depends on all
|
||
# outputs.
|
||
drvPath=$(nix-instantiate multiple-outputs.nix -A c)
|
||
#[ "$drvPath" = "$drvPath2" ]
|
||
grep -q 'multiple-outputs-a.drv",\["first","second"\]' $drvPath
|
||
grep -q 'multiple-outputs-b.drv",\["out"\]' $drvPath
|
||
|
||
# While we're at it, test the ‘unsafeDiscardOutputDependency’ primop.
|
||
outPath=$(nix-build multiple-outputs.nix -A d --no-out-link)
|
||
drvPath=$(cat $outPath/drv)
|
||
outPath=$(nix-store -q $drvPath)
|
||
! [ -e "$outPath" ]
|
||
|
||
# Do a build of something that depends on a derivation with multiple
|
||
# outputs.
|
||
echo "building b..."
|
||
outPath=$(nix-build multiple-outputs.nix -A b --no-out-link)
|
||
echo "output path is $outPath"
|
||
[ "$(cat "$outPath"/file)" = "success" ]
|
||
|
||
# Test nix-build on a derivation with multiple outputs.
|
||
nix-build multiple-outputs.nix -A a -o $TEST_ROOT/result
|
||
[ "$(cat $TEST_ROOT/result-first/file)" = "first" ]
|
||
[ "$(cat $TEST_ROOT/result-second/file)" = "second" ]
|
||
[ "$(cat $TEST_ROOT/result-second/link/file)" = "first" ]
|
||
hash1=$(nix-store -q --hash $TEST_ROOT/result-second)
|
||
|
||
# Delete one of the outputs and rebuild it. This will cause a hash
|
||
# rewrite.
|
||
nix-store --delete $TEST_ROOT/result-second --ignore-liveness
|
||
nix-build multiple-outputs.nix -A a -o $TEST_ROOT/result
|
||
[ "$(cat $TEST_ROOT/result-second/file)" = "second" ]
|
||
[ "$(cat $TEST_ROOT/result-second/link/file)" = "first" ]
|
||
hash2=$(nix-store -q --hash $TEST_ROOT/result-second)
|
||
[ "$hash1" = "$hash2" ]
|
||
|
||
# Make sure that nix-build works on derivations with multiple outputs.
|
||
echo "building a.first..."
|
||
nix-build multiple-outputs.nix -A a.first --no-out-link
|
||
|
||
# Cyclic outputs should be rejected.
|
||
echo "building cyclic..."
|
||
if nix-build multiple-outputs.nix -A cyclic --no-out-link; then
|
||
echo "Cyclic outputs incorrectly accepted!"
|
||
exit 1
|
||
fi
|
||
|
||
echo "collecting garbage..."
|
||
rm $TEST_ROOT/result*
|
||
nix-store --gc --option gc-keep-derivations true --option gc-keep-outputs true
|
||
nix-store --gc --print-roots
|