Check production install only if async is needed

doruchan · doruchan · commit 85362897ffa4 · 2026-06-16T23:33:15.000Z
diff --git a/src/rez/package_cache.py b/src/rez/package_cache.py
@@ -506,7 +506,7 @@ def add_variants(self, variants: Iterable[Variant], package_cache_async: bool =
         # a prod install. On non-windows we could fork instead, but there would
         # remain no good solution on windows.
         #
-        if not system.is_production_rez_install:
+        if package_cache_async and not system.is_production_rez_install:
             raise PackageCacheError(
                 "PackageCache.add_variants is only supported in a "
                 "production rez installation."

Original file line number	Diff line number	Diff line change
`@@ -506,7 +506,7 @@ def add_variants(self, variants: Iterable[Variant], package_cache_async: bool =`
`506`	`506`	`# a prod install. On non-windows we could fork instead, but there would`
`507`	`507`	`# remain no good solution on windows.`
`508`	`508`	`#`
`509`		`- if not system.is_production_rez_install:`
	`509`	`+ if package_cache_async and not system.is_production_rez_install:`
`510`	`510`	`raise PackageCacheError(`
`511`	`511`	`"PackageCache.add_variants is only supported in a "`
`512`	`512`	`"production rez installation."`