slightly better error handling in main

src/main.rs

@@ -14,7 +14,7 @@ use terminal::Terminal;
 use pane::prelude::*;
 
 use std::fs::{remove_file, OpenOptions};
-use std::io::Error;
+use std::io::{Error, ErrorKind};
 
 use anyhow::{Result as AnyResult, Error as AnyError};
 use clap::Parser;
@@ -32,16 +32,22 @@ fn main() -> AnyResult<()> {
         .create_new(true)
         .open(LOG_FILE)
         .map_err(|e| {
-            <Error as Into<AnyError>>::into(e).context(LOG_FILE).context(LOG_EXISTS_MSG)
+            let kind = e.kind();
+            let result = AnyError::from(e).context(LOG_FILE);
+            if kind == ErrorKind::AlreadyExists {
+                result.context(LOG_EXISTS_MSG)
+            } else {
+                result
+            }
         })?;
 
     let _redirect = Redirect::stderr(target)?;
 
-    do_tui(args)?;
+    let result = do_tui(args);
 
     remove_file(LOG_FILE)?;
 
-    Ok(())
+    result.map_err(Into::into)
 }
 
 fn do_tui(args: Args) -> Result<(), Error> {