Export intermediate results after each benchmark command

src/hyperfine/export/mod.rs

@@ -69,7 +69,7 @@ impl ExportManager {
     }
 
     /// Write the given results to all Exporters contained within this manager
-    pub fn write_results(&self, results: Vec<BenchmarkResult>, unit: Option<Unit>) -> Result<()> {
+    pub fn write_results(&self, results: &[BenchmarkResult], unit: Option<Unit>) -> Result<()> {
         for e in &self.exporters {
             let file_content = e.exporter.serialize(&results, unit)?;
             write_to_file(&e.filename, &file_content)?;

src/main.rs

@@ -49,21 +49,21 @@ fn run(
     // Run the benchmarks
     for (num, cmd) in commands.iter().enumerate() {
         timing_results.push(run_benchmark(num, cmd, shell_spawning_time, options)?);
-    }
 
-    // Print relative speed comparison
+        // Export (intermediate) results
-    if options.output_style != OutputStyleOption::Disabled {
+        let ans = export_manager.write_results(&timing_results, options.time_unit);
-        write_benchmark_comparison(&timing_results);
-    }
-
-    // Export results
-    let ans = export_manager.write_results(timing_results, options.time_unit);
         if let Err(e) = ans {
             error(&format!(
                 "The following error occurred while exporting: {}",
                 e
             ));
         }
+    }
+
+    // Print relative speed comparison
+    if options.output_style != OutputStyleOption::Disabled {
+        write_benchmark_comparison(&timing_results);
+    }
 
     Ok(())
 }