Linus Heckemann
78ac3eb4eb
nix-store --export, nix-store --dump, and nix dump-path would previously
fail silently if writing the data out failed, because
a) FdSink::write ignored exceptions, and
b) the commands relied on FdSink's destructor, which ignores
exceptions, to flush the data out.
This could cause rather opaque issues with installing nixos, because
nix-store --export would happily proceed even if it couldn't write its
data out (e.g. if nix-store --import on the other side of the pipe
failed).
This commit adds tests that expose these issues in the nix-store
commands, and fixes them for all three.
45 lines
1.8 KiB
Bash
45 lines
1.8 KiB
Bash
source common.sh
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echo "building test path"
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storePath="$(nix-build nar-access.nix -A a --no-out-link)"
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cd "$TEST_ROOT"
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# Dump path to nar.
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narFile="$TEST_ROOT/path.nar"
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nix-store --dump $storePath > $narFile
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# Check that find and ls-nar match.
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( cd $storePath; find . | sort ) > files.find
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nix ls-nar -R -d $narFile "" | sort > files.ls-nar
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diff -u files.find files.ls-nar
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# Check that file contents of data match.
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nix cat-nar $narFile /foo/data > data.cat-nar
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diff -u data.cat-nar $storePath/foo/data
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# Check that file contents of baz match.
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nix cat-nar $narFile /foo/baz > baz.cat-nar
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diff -u baz.cat-nar $storePath/foo/baz
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nix cat-store $storePath/foo/baz > baz.cat-nar
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diff -u baz.cat-nar $storePath/foo/baz
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# Test --json.
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[[ $(nix ls-nar --json $narFile /) = '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' ]]
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[[ $(nix ls-nar --json -R $narFile /foo) = '{"type":"directory","entries":{"bar":{"type":"regular","size":0,"narOffset":368},"baz":{"type":"regular","size":0,"narOffset":552},"data":{"type":"regular","size":58,"narOffset":736}}}' ]]
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[[ $(nix ls-nar --json -R $narFile /foo/bar) = '{"type":"regular","size":0,"narOffset":368}' ]]
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[[ $(nix ls-store --json $storePath) = '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' ]]
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[[ $(nix ls-store --json -R $storePath/foo) = '{"type":"directory","entries":{"bar":{"type":"regular","size":0},"baz":{"type":"regular","size":0},"data":{"type":"regular","size":58}}}' ]]
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[[ $(nix ls-store --json -R $storePath/foo/bar) = '{"type":"regular","size":0}' ]]
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# Test missing files.
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nix ls-store --json -R $storePath/xyzzy 2>&1 | grep 'does not exist in NAR'
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nix ls-store $storePath/xyzzy 2>&1 | grep 'does not exist'
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# Test failure to dump.
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if nix-store --dump $storePath >/dev/full ; then
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echo "dumping to /dev/full should fail"
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exit -1
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fi
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