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Add tests for read-only local store
Make sure we don't go down the path of making temproots when doing operations on a read-only store
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3 changed files with 35 additions and 1 deletions
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@ -110,6 +110,10 @@ void LocalStore::createTempRootsFile()
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void LocalStore::addTempRoot(const StorePath & path)
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{
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if (readOnly) {
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debug("Read-only store doesn't support creating lock files for temp roots, but nothing can be deleted anyways.");
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return;
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}
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createTempRootsFile();
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/* Open/create the global GC lock file. */
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@ -134,7 +134,8 @@ nix_tests = \
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flakes/show.sh \
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impure-derivations.sh \
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path-from-hash-part.sh \
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toString-path.sh
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toString-path.sh \
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read-only-store.sh
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ifeq ($(HAVE_LIBCPUID), 1)
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nix_tests += compute-levels.sh
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29
tests/read-only-store.sh
Normal file
29
tests/read-only-store.sh
Normal file
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@ -0,0 +1,29 @@
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source common.sh
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clearStore
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## Testing read-only mode without forcing the underlying store to actually be read-only
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# Make sure the command fails when the store doesn't already have a database
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expectStderr 1 nix-store --store local?read-only=true --add dummy | grepQuiet "unable to create database while in read-only mode"
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# Make sure the store actually has a current-database
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nix-store --add dummy
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# Try again and make sure we fail when adding a item not already in the store
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expectStderr 1 nix-store --store local?read-only=true --add eval.nix | grepQuiet "attempt to write a readonly database"
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# Make sure we can get an already-present store-path in the database
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nix-store --store local?read-only=true --add dummy
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## Ensure store is actually read-only
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chmod -R -w $TEST_ROOT/store
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chmod -R -w $TEST_ROOT/var
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# Make sure we fail on add operations on the read-only store
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# This is only for adding files that are not *already* in the store
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expectStderr 1 nix-store --add eval.nix | grepQuiet "error: opening lock file '$(readlink -e $TEST_ROOT)/var/nix/db/big-lock'"
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expectStderr 1 nix-store --store local?read-only=true --add eval.nix | grepQuiet "Permission denied"
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# Should succeed
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nix-store --store local?read-only=true --add dummy
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