Add ability to save chdig logs into file

src/bin.rs

@@ -1,6 +1,6 @@
 use anyhow::{Result, anyhow};
 use backtrace::Backtrace;
-use flexi_logger::{LogSpecification, Logger};
+use flexi_logger::{FileSpec, LogSpecification, Logger};
 use std::ffi::OsString;
 use std::panic::{self, PanicHookInfo};
 use std::sync::Arc;
@@ -55,12 +55,17 @@ where
     //
     // FIXME: should be initialize before options, but options prints completion that should be
     // done before terminal switched to raw mode.
-    let logger = Logger::try_with_env_or_str(
+    let mut logger = Logger::try_with_env_or_str(
         "trace,cursive=info,clickhouse_rs=info,skim=info,tuikit=info,hyper=info,rustls=info",
-    )?
-    .log_to_writer(cursive_flexi_logger_view::cursive_flexi_logger(&siv))
-    .format(flexi_logger::colored_with_thread)
-    .start()?;
+    )?;
+    if let Some(log) = &options.service.log {
+        logger = logger.log_to_file(FileSpec::try_from(log)?);
+    } else {
+        logger = logger.log_to_writer(cursive_flexi_logger_view::cursive_flexi_logger(&siv));
+    }
+    let logger = logger
+        .format(flexi_logger::colored_with_thread)
+        .start()?;
 
     // FIXME: should be initialized before cursive, otherwise on error it clears the terminal.
     let context: ContextArc = Context::new(options, clickhouse, siv.cb_sink().clone()).await?;

src/interpreter/options.rs

@@ -135,7 +135,7 @@ pub struct ChDigOptions {
     #[command(subcommand)]
     pub start_view: Option<ChDigViews>,
     #[command(flatten)]
-    service: ServiceOptions,
+    pub service: ServiceOptions,
 }
 
 #[derive(Args, Clone, Default)]
@@ -217,6 +217,9 @@ pub struct ViewOptions {
 pub struct ServiceOptions {
     #[arg(long, value_enum)]
     completion: Option<Shell>,
+    #[arg(long)]
+    /// Log (for debugging chdig itself)
+    pub log: Option<String>,
 }
 
 fn read_yaml_clickhouse_client_config(path: &str) -> Result<ClickHouseClientConfig> {

src/view/log_view.rs

@@ -255,7 +255,7 @@ impl LogViewBase {
         self.update_content = false;
     }
 
-    fn content_required_size(&mut self, mut req: Vec2) -> Vec2 {
+    fn inner_required_size(&mut self, mut req: Vec2) -> Vec2 {
         self.screen_size_without_wrap = req;
 
         let rows = self.rows.as_ref().map_or(0, |r| r.len());
@@ -424,7 +424,7 @@ impl View for LogViewBase {
             size.saturating_sub((0, 0)),
             self.needs_relayout,
             Self::layout_content,
-            Self::content_required_size,
+            Self::inner_required_size,
         );
 
         if let Some(matched_row) = self.matched_row {
@@ -441,7 +441,7 @@ impl ViewWrapper for LogView {
             .inner_view
             .get_inner_mut()
             .get_mut()
-            .content_required_size(req);
+            .inner_required_size(req);
         // For scrollbars
         req.x += 1;
         req.y += 1;