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lix/tests/nar-access.sh
Eelco Dolstra 338f29dbd4 nix ls-{nar,store}: Return offset of files in the NAR if known
E.g.

  $ nix ls-store --json --recursive --store https://cache.nixos.org /nix/store/b0w2hafndl09h64fhb86kw6bmhbmnpm1-blender-2.79 \
    | jq .entries.bin.entries.blender.narOffset
  400
2017-12-07 01:07:07 +01:00

39 lines
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source common.sh
echo "building test path"
storePath="$(nix-build nar-access.nix -A a --no-out-link)"
cd "$TEST_ROOT"
# Dump path to nar.
narFile="$TEST_ROOT/path.nar"
nix-store --dump $storePath > $narFile
# Check that find and ls-nar match.
( cd $storePath; find . | sort ) > files.find
nix ls-nar -R -d $narFile "" | sort > files.ls-nar
diff -u files.find files.ls-nar
# Check that file contents of data match.
nix cat-nar $narFile /foo/data > data.cat-nar
diff -u data.cat-nar $storePath/foo/data
# Check that file contents of baz match.
nix cat-nar $narFile /foo/baz > baz.cat-nar
diff -u baz.cat-nar $storePath/foo/baz
nix cat-store $storePath/foo/baz > baz.cat-nar
diff -u baz.cat-nar $storePath/foo/baz
# Test --json.
[[ $(nix ls-nar --json $narFile /) = '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' ]]
[[ $(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}}}' ]]
[[ $(nix ls-nar --json -R $narFile /foo/bar) = '{"type":"regular","size":0,"narOffset":368}' ]]
[[ $(nix ls-store --json $storePath) = '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' ]]
[[ $(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}}}' ]]
[[ $(nix ls-store --json -R $storePath/foo/bar) = '{"type":"regular","size":0}' ]]
# Test missing files.
nix ls-store --json -R $storePath/xyzzy 2>&1 | grep 'does not exist in NAR'
nix ls-store $storePath/xyzzy 2>&1 | grep 'does not exist'