snix/users/edef/depot-scan-wrap.nix
edef fcffacf8c9 fix(users/edef/depot-scan): properly trace readFile/readDir
Change-Id: I493e7d20504d34f83a53db50b69e86668874756e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1651
Reviewed-by: edef <edef@edef.eu>
Tested-by: BuildkiteCI
2020-08-05 02:05:22 +00:00

17 lines
532 B
Nix

# 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