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nix eval: Add option to write a directory
This is useful for generating the nix manpages, but it may have other applications (like generating configuration files without a Nix store).
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2 changed files with 59 additions and 4 deletions
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@ -16,3 +16,11 @@ nix eval --expr 'assert 1 + 2 == 3; true'
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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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