tvl-depot/users/edef/depot-scan/wrap.nix

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# this wraps import to override readFile and readDir to trace the files it touches
# technique inspired by lorri
let
global = {
import = global.scopedImport { };
scopedImport = x: builtins.scopedImport (global // x);
builtins = builtins // {
inherit (global) import scopedImport;
readFile = path: builtins.trace "depot-scan '${toString path}'" (builtins.readFile path);
readDir = path: builtins.trace "depot-scan '${toString path}'" (builtins.readDir path);
};
};
in
global.import