fix: otel resiliency (#26857)

Improving the breadth of collected data, and ensuring that the collected
data is more likely to be successfully reported.

- Use `log` crate in more places
- Hook up `log` crate to otel
- Switch to process-wide otel processors
- Handle places that use `process::exit`

Also adds a more robust testing framework, with a deterministic tracing
setting.

Refs: https://github.com/denoland/deno/issues/26852

3 files changed, 6 insertions, 7 deletions

diff --git a/cli/util/file_watcher.rs b/cli/util/file_watcher.rs
index 8d734af88..21ea95e06 100644
--- a/cli/util/file_watcher.rs
+++ b/cli/util/file_watcher.rs
@@ -73,7 +73,6 @@ impl DebouncedReceiver {
   }
 }
 
-#[allow(clippy::print_stderr)]
 async fn error_handler<F>(watch_future: F) -> bool
 where
   F: Future<Output = Result<(), AnyError>>,
@@ -84,7 +83,7 @@ where
       Some(e) => format_js_error(e),
       None => format!("{err:?}"),
     };
-    eprintln!(
+    log::error!(
       "{}: {}",
       colors::red_bold("error"),
       error_string.trim_start_matches("error: ")
diff --git a/cli/util/logger.rs b/cli/util/logger.rs
index d93753dfd..f76663df2 100644
--- a/cli/util/logger.rs
+++ b/cli/util/logger.rs
@@ -29,6 +29,7 @@ impl log::Log for CliLogger {
       // thread's state
       DrawThread::hide();
       self.0.log(record);
+      deno_runtime::ops::otel::handle_log(record);
       DrawThread::show();
     }
   }
diff --git a/cli/util/v8.rs b/cli/util/v8.rs
index fb16e67b7..6e690e6f3 100644
--- a/cli/util/v8.rs
+++ b/cli/util/v8.rs
@@ -46,15 +46,14 @@ pub fn init_v8_flags(
     .skip(1)
     .collect::<Vec<_>>();
 
-  #[allow(clippy::print_stderr)]
   if !unrecognized_v8_flags.is_empty() {
     for f in unrecognized_v8_flags {
-      eprintln!("error: V8 did not recognize flag '{f}'");
+      log::error!("error: V8 did not recognize flag '{f}'");
     }
-    eprintln!("\nFor a list of V8 flags, use '--v8-flags=--help'");
-    std::process::exit(1);
+    log::error!("\nFor a list of V8 flags, use '--v8-flags=--help'");
+    deno_runtime::exit(1);
   }
   if v8_flags_includes_help {
-    std::process::exit(0);
+    deno_runtime::exit(0);
   }
 }