Minor: allow to build RuntimeEnv from RuntimeConfig (#12151)

* Allow to build RuntimeEnv from RuntimeConfig

* Fix formatting

Author: theirix

datafusion/core/tests/fuzz_cases/sort_fuzz.rs

@@ -22,7 +22,7 @@ use arrow::{
     compute::SortOptions,
     record_batch::RecordBatch,
 };
-use datafusion::execution::runtime_env::{RuntimeConfig, RuntimeEnv};
+use datafusion::execution::runtime_env::RuntimeConfig;
 use datafusion::physical_plan::expressions::PhysicalSortExpr;
 use datafusion::physical_plan::memory::MemoryExec;
 use datafusion::physical_plan::sorts::sort::SortExec;
@@ -136,9 +136,10 @@ impl SortTest {
                     .sort_spill_reservation_bytes,
             );
 
-            let runtime_config = RuntimeConfig::new()
-                .with_memory_pool(Arc::new(GreedyMemoryPool::new(pool_size)));
-            let runtime = Arc::new(RuntimeEnv::new(runtime_config).unwrap());
+            let runtime_env = RuntimeConfig::new()
+                .with_memory_pool(Arc::new(GreedyMemoryPool::new(pool_size)))
+                .build();
+            let runtime = Arc::new(runtime_env.unwrap());
             SessionContext::new_with_config_rt(session_config, runtime)
         } else {
             SessionContext::new_with_config(session_config)

datafusion/execution/src/runtime_env.rs

@@ -228,4 +228,9 @@ impl RuntimeConfig {
     pub fn with_temp_file_path(self, path: impl Into<PathBuf>) -> Self {
         self.with_disk_manager(DiskManagerConfig::new_specified(vec![path.into()]))
     }
+
+    /// Build a `RuntimeEnv` object from the configuration
+    pub fn build(self) -> Result<RuntimeEnv> {
+        RuntimeEnv::new(self)
+    }
 }