Use folder for example showcase reports and add show logs flag (#13198)

# Objective

- The report_details flag currently dumps everything at the root of the
repo which isn't ideal
- When running the tool locally it's useful to see the logs as they
appear

## Solution

- Add a flag to show the logs
- Write all the report files to a folder

.gitignore

@@ -21,3 +21,4 @@ crates/bevy_asset/imported_assets
 imported_assets
 
 example_showcase_config.ron
+example-showcase-reports/

tools/example-showcase/src/main.rs

@@ -25,6 +25,7 @@ struct Args {
 
     #[command(subcommand)]
     action: Action,
+
     #[arg(long)]
     /// Pagination control - page number. To use with --per-page
     page: Option<usize>,
@@ -62,6 +63,10 @@ enum Action {
         /// Report execution details in files
         report_details: bool,
 
+        #[arg(long)]
+        /// Show the logs during execution
+        show_logs: bool,
+
         #[arg(long)]
         /// File containing the list of examples to run, incompatible with pagination
         example_list: Option<String>,
@@ -137,6 +142,7 @@ fn main() {
             in_ci,
             ignore_stress_tests,
             report_details,
+            show_logs,
             example_list,
             only_default_features,
         } => {
@@ -263,6 +269,12 @@ fn main() {
 
             let mut pb = ProgressBar::new(work_to_do().count() as u64);
 
+            let reports_path = "example-showcase-reports";
+            if report_details {
+                std::fs::create_dir(reports_path)
+                    .expect("Failed to create example-showcase-reports directory");
+            }
+
             for to_run in work_to_do() {
                 let sh = Shell::new().unwrap();
                 let example = &to_run.technical_name;
@@ -306,7 +318,7 @@ fn main() {
                 }
 
                 let before = Instant::now();
-                if report_details {
+                if report_details || show_logs {
                     cmd = cmd.ignore_status();
                 }
                 let result = cmd.output();
@@ -337,18 +349,23 @@ fn main() {
                     failed_examples.push((to_run, duration));
                 }
 
-                if report_details {
+                if report_details || show_logs {
                     let result = result.unwrap();
                     let stdout = String::from_utf8_lossy(&result.stdout);
                     let stderr = String::from_utf8_lossy(&result.stderr);
+                    if show_logs {
                         println!("{}", stdout);
                         println!("{}", stderr);
-                    let mut file = File::create(format!("{}.log", example)).unwrap();
+                    }
+                    if report_details {
+                        let mut file =
+                            File::create(format!("{reports_path}/{}.log", example)).unwrap();
                         file.write_all(b"==== stdout ====\n").unwrap();
                         file.write_all(stdout.as_bytes()).unwrap();
                         file.write_all(b"\n==== stderr ====\n").unwrap();
                         file.write_all(stderr.as_bytes()).unwrap();
                     }
+                }
 
                 thread::sleep(Duration::from_secs(1));
                 pb.inc();
@@ -357,7 +374,7 @@ fn main() {
 
             if report_details {
                 let _ = fs::write(
-                    "successes",
+                    format!("{reports_path}/successes"),
                     successful_examples
                         .iter()
                         .map(|(example, duration)| {
@@ -372,7 +389,7 @@ fn main() {
                         .join("\n"),
                 );
                 let _ = fs::write(
-                    "failures",
+                    format!("{reports_path}/failures"),
                     failed_examples
                         .iter()
                         .map(|(example, duration)| {
@@ -388,7 +405,7 @@ fn main() {
                 );
                 if screenshot {
                     let _ = fs::write(
-                        "no_screenshots",
+                        format!("{reports_path}/no_screenshots"),
                         no_screenshot_examples
                             .iter()
                             .map(|(example, duration)| {