some renaming + cleaner code

Signed-off-by: Aminu 'Seun Joshua <seun.aminujoshua@gmail.com>

Author: seun-ja

crates/runtime-factors/src/build.rs

@@ -50,7 +50,7 @@ impl RuntimeFactorsBuilder for FactorsBuilder {
         executor.add_hooks(StdioLoggingExecutorHooks::new(
             config.follow_components.clone(),
             runtime_config.log_dir(),
-            config.refresh_logs,
+            config.truncate_logs,
         ));
         executor.add_hooks(SqlStatementExecutorHook::new(
             args.sqlite_statements.clone(),

crates/trigger/src/cli.rs

@@ -27,7 +27,7 @@ pub use stdio::StdioLoggingExecutorHooks;
 pub use summary::{KeyValueDefaultStoreSummaryHook, SqliteDefaultStoreSummaryHook};
 
 pub const APP_LOG_DIR: &str = "APP_LOG_DIR";
-pub const SPIN_REFRESH_LOGS: &str = "SPIN_REFRESH_LOGS";
+pub const SPIN_TRUNCATE_LOGS: &str = "SPIN_TRUNCATE_LOGS";
 pub const DISABLE_WASMTIME_CACHE: &str = "DISABLE_WASMTIME_CACHE";
 pub const FOLLOW_LOG_OPT: &str = "FOLLOW_ID";
 pub const WASMTIME_CACHE_FILE: &str = "WASMTIME_CACHE_FILE";
@@ -55,12 +55,12 @@ pub struct FactorsTriggerCommand<T: Trigger<B::Factors>, B: RuntimeFactorsBuilde
     )]
     pub log: Option<PathBuf>,
 
-    /// If set, Spin deletes the log files before starting the application.
+    /// If set, Spin truncates the log files before starting the application.
     #[clap(
-        name = SPIN_REFRESH_LOGS,
-        long = "refresh-logs",
+        name = SPIN_TRUNCATE_LOGS,
+        long = "truncate-logs",
     )]
-    pub refresh_logs: bool,
+    pub truncate_logs: bool,
 
     /// Disable Wasmtime cache.
     #[clap(
@@ -147,8 +147,8 @@ pub struct FactorsConfig {
     pub follow_components: FollowComponents,
     /// Log directory for component stdout/stderr.
     pub log_dir: UserProvidedPath,
-    /// If set, Spin deletes the log files before starting the application.
-    pub refresh_logs: bool,
+    /// If set, Spin truncates the log files before starting the application.
+    pub truncate_logs: bool,
 }
 
 /// An empty implementation of clap::Args to be used as TriggerExecutor::RunConfig
@@ -230,7 +230,7 @@ impl<T: Trigger<B::Factors>, B: RuntimeFactorsBuilder> FactorsTriggerCommand<T,
             local_app_dir: local_app_dir.clone(),
             follow_components,
             log_dir,
-            refresh_logs: self.refresh_logs,
+            truncate_logs: self.truncate_logs,
         };
 
         let run_fut = builder

crates/trigger/src/cli/stdio.rs

@@ -42,19 +42,19 @@ impl FollowComponents {
 pub struct StdioLoggingExecutorHooks {
     follow_components: FollowComponents,
     log_dir: Option<PathBuf>,
-    refresh_log: bool,
+    truncate_log: bool,
 }
 
 impl StdioLoggingExecutorHooks {
     pub fn new(
         follow_components: FollowComponents,
         log_dir: Option<PathBuf>,
-        refresh_log: bool,
+        truncate_log: bool,
     ) -> Self {
         Self {
             follow_components,
             log_dir,
-            refresh_log,
+            truncate_log,
         }
     }
 
@@ -65,7 +65,7 @@ impl StdioLoggingExecutorHooks {
         log_dir: Option<&Path>,
     ) -> Result<ComponentStdioWriter> {
         let sanitized_component_id = sanitize_filename::sanitize(component_id);
-        let log_path = santized_log_path(log_dir, &sanitized_component_id, log_suffix);
+        let log_path = sanitized_log_path(log_dir, &sanitized_component_id, log_suffix);
         let log_path = log_path.as_deref();
 
         let follow = self.follow_components.should_follow(component_id);
@@ -94,6 +94,35 @@ impl StdioLoggingExecutorHooks {
             _ => Ok(()),
         }
     }
+
+    fn truncate_log_files<F: RuntimeFactors>(
+        &self,
+        configured_app: &spin_factors::ConfiguredApp<F>,
+    ) {
+        let sanitized_component_ids: Vec<String> = configured_app
+            .app()
+            .components()
+            .map(|c| sanitize_filename::sanitize(c.locked.id.clone()))
+            .collect();
+
+        for sanitized_component_id in sanitized_component_ids {
+            if let Some(stdout_log_path) = sanitized_log_path(
+                self.log_dir.as_deref(),
+                &sanitized_component_id,
+                STDOUT_LOG_FILE_SUFFIX,
+            ) {
+                let _ = std::fs::File::create(stdout_log_path);
+            }
+
+            if let Some(stderr_log_path) = sanitized_log_path(
+                self.log_dir.as_deref(),
+                &sanitized_component_id,
+                STDERR_LOG_FILE_SUFFIX,
+            ) {
+                let _ = std::fs::File::create(stderr_log_path);
+            }
+        }
+    }
 }
 
 #[async_trait]
@@ -104,43 +133,15 @@ impl<F: RuntimeFactors, U> ExecutorHooks<F, U> for StdioLoggingExecutorHooks {
     ) -> anyhow::Result<()> {
         self.validate_follows(configured_app.app())?;
 
-        if self.refresh_log {
-            let sanitized_component_ids: Vec<String> = configured_app
-                .app()
-                .components()
-                .map(|c| sanitize_filename::sanitize(c.locked.id.clone()))
-                .collect();
-
-            for sanitized_component_id in sanitized_component_ids {
-                if let Some(stdout_log_path) = santized_log_path(
-                    self.log_dir.as_deref(),
-                    &sanitized_component_id,
-                    STDOUT_LOG_FILE_SUFFIX,
-                ) {
-                    if let Err(err) = std::fs::File::create(stdout_log_path) {
-                        //TODO: figure out if we want to return error here
-                        tracing::warn!("Failed to refresh stdout log file: {}", err);
-                    }
-                }
-
-                if let Some(stderr_log_path) = santized_log_path(
-                    self.log_dir.as_deref(),
-                    &sanitized_component_id,
-                    STDERR_LOG_FILE_SUFFIX,
-                ) {
-                    if let Err(err) = std::fs::File::create(stderr_log_path) {
-                        //TODO: figure out if we want to return error here
-                        tracing::warn!("Failed to refresh stderr log file: {}", err);
-                    }
-                }
-            }
-        }
-
         if let Some(dir) = &self.log_dir {
             // Ensure log dir exists if set
             std::fs::create_dir_all(dir)
                 .with_context(|| format!("Failed to create log dir {}", quoted_path(dir)))?;
 
+            if self.truncate_log {
+                self.truncate_log_files(configured_app);
+            }
+
             println!("Logging component stdio to {}", quoted_path(dir.join("")))
         }
         Ok(())
@@ -370,7 +371,7 @@ fn bullet_list<S: std::fmt::Display>(items: impl IntoIterator<Item = S>) -> Stri
         .join("\n")
 }
 
-fn santized_log_path(
+fn sanitized_log_path(
     log_dir: Option<&Path>,
     sanitized_component_id: &str,
     log_suffix: &str,