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Merge pull request #6698 from tweag/forbid-tilde-paths-in-pure-mode

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Forbid the tilde expansion in pure eval mode
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Théophane Hufschmitt 2022-06-24 10:02:40 +02:00 committed by GitHub
parent 2ef6785d8e 983efdbde4
commit f06b6fa4fa
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 0 deletions
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6
src/libexpr/parser.y
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@ -520,6 +520,12 @@ path_start
$$ = new ExprPath(path); $$ = new ExprPath(path);
} }
| HPATH { | HPATH {
if (evalSettings.pureEval) {
throw Error(
"the path '%s' can not be resolved in pure mode",
std::string_view($1.p, $1.l)
);
}
Path path(getHome() + std::string($1.p + 1, $1.l - 1)); Path path(getHome() + std::string($1.p + 1, $1.l - 1));
$$ = new ExprPath(path); $$ = new ExprPath(path);
} }

2
tests/pure-eval.sh
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@ -30,3 +30,5 @@ nix eval --store dummy:// --write-to $TEST_ROOT/eval-out --expr '{ x = "foo" + "
rm -rf $TEST_ROOT/eval-out rm -rf $TEST_ROOT/eval-out
(! nix eval --store dummy:// --write-to $TEST_ROOT/eval-out --expr '{ "." = "bla"; }') (! nix eval --store dummy:// --write-to $TEST_ROOT/eval-out --expr '{ "." = "bla"; }')
(! nix eval --expr '~/foo')