Add recursive directory contents when using RunStep.addDirectoryArg and friends #20935
Description
zig/lib/std/Build/Step/Run.zig
Lines 643 to 648 in a931bfa
Right now, the directory path is cached, but not it's contents. This means when using a thing like
const bundle_step = b.addSystemCommand(&.{"tar", "-c"});
bundle_step.addArg("-f");
const asset_bundle_path = bundle_step.addOutputFileArg("result.tar");
bundle_step.addArg("-C");
bundle_step.addDirectoryArg(b.path("./assets"));
// asset_bundle_path is only generated once, no matter if the files inside ./assets ever change