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Merge pull request #10345 from edolstra/fix-chroot-flakes

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Fix flake evaluation in chroot stores
This commit is contained in:
Théophane Hufschmitt 2024-04-02 17:49:45 +02:00 committed by GitHub
commit 290be6c906
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4 changed files with 58 additions and 24 deletions
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13
src/libexpr/flake/flake.cc
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@ -10,6 +10,7 @@
#include "finally.hh"
#include "fetch-settings.hh"
#include "value-to-json.hh"
#include "local-fs-store.hh"
namespace nix {
@ -755,7 +756,17 @@ void callFlake(EvalState & state,
auto lockedNode = node.dynamic_pointer_cast<const LockedNode>();
auto [storePath, subdir] = state.store->toStorePath(sourcePath.path.abs());
// FIXME: This is a hack to support chroot stores. Remove this
// once we can pass a sourcePath rather than a storePath to
// call-flake.nix.
auto path = sourcePath.path.abs();
if (auto store = state.store.dynamic_pointer_cast<LocalFSStore>()) {
auto realStoreDir = store->getRealStoreDir();
if (isInDir(path, realStoreDir))
path = store->storeDir + path.substr(realStoreDir.size());
}
auto [storePath, subdir] = state.store->toStorePath(path);
emitTreeAttrs(
state,

45
tests/functional/chroot-store.sh Normal file
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@ -0,0 +1,45 @@
source common.sh
echo example > $TEST_ROOT/example.txt
mkdir -p $TEST_ROOT/x
export NIX_STORE_DIR=/nix2/store
CORRECT_PATH=$(cd $TEST_ROOT && nix-store --store ./x --add example.txt)
[[ $CORRECT_PATH =~ ^/nix2/store/.*-example.txt$ ]]
PATH1=$(cd $TEST_ROOT && nix path-info --store ./x $CORRECT_PATH)
[ $CORRECT_PATH == $PATH1 ]
PATH2=$(nix path-info --store "$TEST_ROOT/x" $CORRECT_PATH)
[ $CORRECT_PATH == $PATH2 ]
PATH3=$(nix path-info --store "local?root=$TEST_ROOT/x" $CORRECT_PATH)
[ $CORRECT_PATH == $PATH3 ]
# Ensure store info trusted works with local store
nix --store $TEST_ROOT/x store info --json | jq -e '.trusted'
# Test building in a chroot store.
if canUseSandbox; then
flakeDir=$TEST_ROOT/flake
mkdir -p $flakeDir
cat > $flakeDir/flake.nix <<EOF
{
outputs = inputs: rec {
packages.$system.default = import ./simple.nix;
};
}
EOF
cp simple.nix shell.nix simple.builder.sh config.nix $flakeDir/
outPath=$(nix build --print-out-paths --no-link --sandbox-paths '/nix? /bin? /lib? /lib64? /usr?' --store $TEST_ROOT/x path:$flakeDir)
[[ $outPath =~ ^/nix2/store/.*-simple$ ]]
[[ $(cat $TEST_ROOT/x/nix/store/$(basename $outPath)/hello) = 'Hello World!' ]]
fi

22
tests/functional/local-store.sh
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@ -1,22 +0,0 @@
source common.sh
cd $TEST_ROOT
echo example > example.txt
mkdir -p ./x
NIX_STORE_DIR=$TEST_ROOT/x
CORRECT_PATH=$(nix-store --store ./x --add example.txt)
PATH1=$(nix path-info --store ./x $CORRECT_PATH)
[ $CORRECT_PATH == $PATH1 ]
PATH2=$(nix path-info --store "$PWD/x" $CORRECT_PATH)
[ $CORRECT_PATH == $PATH2 ]
PATH3=$(nix path-info --store "local?root=$PWD/x" $CORRECT_PATH)
[ $CORRECT_PATH == $PATH3 ]
# Ensure store info trusted works with local store
nix --store ./x store info --json | jq -e '.trusted'

2
tests/functional/local.mk
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@ -83,7 +83,7 @@ nix_tests = \
export.sh \
config.sh \
add.sh \
local-store.sh \
chroot-store.sh \
filter-source.sh \
misc.sh \
dump-db.sh \