Merge pull request #563 from sleroq/fix-use-substitutes

fix: prevent --use-substitutes from being passed to nix build

Author: faukah

CHANGELOG.md

@@ -110,6 +110,8 @@ functionality, under the "Removed" section.
 - Empty password validation prevents invalid credential caching.
 - Direnv caches in [alternative locations][direnv-alternative-caches] (e.g.,
   `$XDG_CACHE_DIR/direnv/layouts`) will now be detected during `nh clean`.
+- Fixed `--use-substitutes` being incorrectly passed to `nix build`, causing
+  "unrecognised flag" errors.
 
 [direnv-alternative-caches]: https://github.com/direnv/direnv/wiki/Customizing-cache-location
 

src/interface.rs

@@ -911,9 +911,6 @@ impl NixBuildPassthroughArgs {
     if self.no_build_output {
       args.push("--no-build-output".into());
     }
-    if self.use_substitutes {
-      args.push("--use-substitutes".into());
-    }
     if self.json {
       args.push("--json".into());
     }