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Test that nix-store --restore fails if the output already exists

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This restores the behaviour from before the std::filesystem
refactorings.
This commit is contained in:
Eelco Dolstra 2024-09-05 16:48:43 +02:00
parent 83d5b32803
commit da1ad28912
2 changed files with 5 additions and 1 deletions
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3
src/libutil/fs-sink.cc
View file

@ -71,7 +71,8 @@ static GlobalConfig::Register r1(&restoreSinkSettings);
void RestoreSink::createDirectory(const CanonPath & path)
{
std::filesystem::create_directory(dstPath / path.rel());
if (!std::filesystem::create_directory(dstPath / path.rel()))
throw Error("path '%s' already exists", (dstPath / path.rel()).string());
};
struct RestoreRegularFile : CreateRegularFileSink {

3
tests/functional/nars.sh
View file

@ -10,6 +10,9 @@ clearStore
rm -rf "$TEST_ROOT/out"
expectStderr 1 nix-store --restore "$TEST_ROOT/out" < duplicate.nar | grepQuiet "NAR directory is not sorted"
# Check that nix-store --restore fails if the output already exists.
expectStderr 1 nix-store --restore "$TEST_ROOT/out" < duplicate.nar | grepQuiet "path '.*/out/' already exists"
# Check whether restoring and dumping a NAR that contains case
# collisions is round-tripping, even on a case-insensitive system.
rm -rf "$TEST_ROOT/case"