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7349bd0176
* `sub' to subtract two numbers. * `stringLength' to get the length of a string. * `substring' to get a substring of a string. These should be enough to allow most string operations to be expressed.
13 lines
393 B
Nix
13 lines
393 B
Nix
derivation {
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name = "filter";
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system = "@system@";
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builder = "@shell@";
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args = ["-e" "-x" (builtins.toFile "builder" "PATH=@testPath@; ln -s $input $out")];
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input =
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let filter = path: type:
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type != "symlink"
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&& baseNameOf path != "foo"
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&& !((import ./lang/lib.nix).hasSuffix ".bak" (baseNameOf path));
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in builtins.filterSource filter ./test-tmp/filterin;
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}
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