Alois Wohlschlager
9d99a7c2cf
Starting with commit 0dbfa7b26e access would also
be allowed to ancestors of allowed paths. This is (ironically) a significant
purity regression, since several users of the purity checks will themselves
assume that arbitrary descent is allowed. For example, `builtins.readDir` and
`builtins.path` could now refer to the filesystem root, breaking purity
entirely in the latter case by allowing to read arbitrary files. Restore the
previous behaviour of only allowing access to explicitly allowed paths.
Change-Id: Ie64180733ab735da9873255e1ccbf95ba7c9161c
36 lines
1.4 KiB
Bash
36 lines
1.4 KiB
Bash
source common.sh
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clearStore
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nix eval --expr 'assert 1 + 2 == 3; true'
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[[ $(nix eval --impure --expr 'builtins.readFile ./pure-eval.sh') =~ clearStore ]]
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missingImpureErrorMsg=$(! nix eval --expr 'builtins.readFile ./pure-eval.sh' 2>&1)
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echo "$missingImpureErrorMsg" | grepQuiet -- --impure || \
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fail "The error message should mention the “--impure” flag to unblock users"
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[[ $(nix eval --expr 'builtins.pathExists ./pure-eval.sh') == false ]] || \
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fail "Calling 'pathExists' on a non-authorised path should return false"
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(! nix eval --expr builtins.currentTime)
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(! nix eval --expr builtins.currentSystem)
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(! nix-instantiate --pure-eval ./simple.nix)
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(! nix eval --expr 'builtins.readDir "/"')
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[[ $(nix eval --impure --expr "(import (builtins.fetchurl { url = \"file://$(pwd)/pure-eval.nix\"; })).x") == 123 ]]
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(! nix eval --expr "(import (builtins.fetchurl { url = \"file://$(pwd)/pure-eval.nix\"; })).x")
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nix eval --expr "(import (builtins.fetchurl { url = \"file://$(pwd)/pure-eval.nix\"; sha256 = \"$(nix hash file pure-eval.nix --type sha256)\"; })).x"
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rm -rf $TEST_ROOT/eval-out
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nix eval --store dummy:// --write-to $TEST_ROOT/eval-out --expr '{ x = "foo" + "bar"; y = { z = "bla"; }; }'
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[[ $(cat $TEST_ROOT/eval-out/x) = foobar ]]
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[[ $(cat $TEST_ROOT/eval-out/y/z) = bla ]]
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rm -rf $TEST_ROOT/eval-out
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(! nix eval --store dummy:// --write-to $TEST_ROOT/eval-out --expr '{ "." = "bla"; }')
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(! nix eval --expr '~/foo')
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