handle no sqlite feature in example

nushell · Oct 19, 2023 · c9766b1 · c9766b1
1 parent 05b9d5e
commit c9766b1
Showing 1 changed file with 37 additions and 40 deletions.
diff --git a/examples/cwd_aware_hinter.rs b/examples/cwd_aware_hinter.rs
@@ -1,4 +1,3 @@
-#![allow(dead_code)]
 // Create a reedline object with in-line hint support.
 // cargo run --example cwd_aware_hinter
 //
@@ -8,6 +7,8 @@
 // Up/Down or Ctrl p/n, to select next/previous match
 
 use std::io;
+
+use reedline::FileBackedHistory;
 fn create_item(cwd: &str, cmd: &str, exit_status: i64) -> reedline::HistoryItem {
     use std::time::Duration;
 
@@ -25,9 +26,11 @@ fn create_item(cwd: &str, cmd: &str, exit_status: i64) -> reedline::HistoryItem
     }
 }
 
-#[cfg(any(feature = "sqlite", feature = "sqlite-dynlib"))]
 fn create_filled_example_history(home_dir: &str, orig_dir: &str) -> Box<dyn reedline::History> {
-    use reedline::{History, SqliteBackedHistory};
+    use reedline::History;
+    #[cfg(not(any(feature = "sqlite", feature = "sqlite-dynlib")))]
+    let mut history = FileBackedHistory::new(100);
+    #[cfg(any(feature = "sqlite", feature = "sqlite-dynlib"))]
     let mut history = SqliteBackedHistory::in_memory().unwrap();
     history.save(create_item(orig_dir, "dummy", 0)).unwrap(); // add dummy item so ids start with 1
     history.save(create_item(orig_dir, "ls /usr", 0)).unwrap();
@@ -40,49 +43,43 @@ fn create_filled_example_history(home_dir: &str, orig_dir: &str) -> Box<dyn reed
 }
 
 fn main() -> io::Result<()> {
-    #[cfg(any(feature = "sqlite", feature = "sqlite-dynlib"))]
-    return {
-        use nu_ansi_term::{Color, Style};
-        use reedline::{CwdAwareHinter, DefaultPrompt, Reedline, Signal};
+    use nu_ansi_term::{Color, Style};
+    use reedline::{CwdAwareHinter, DefaultPrompt, Reedline, Signal};
 
-        let orig_dir = std::env::current_dir().unwrap();
-        #[allow(deprecated)]
-        let home_dir = std::env::home_dir().unwrap();
+    let orig_dir = std::env::current_dir().unwrap();
+    #[allow(deprecated)]
+    let home_dir = std::env::home_dir().unwrap();
 
-        let history = create_filled_example_history(
-            &home_dir.to_string_lossy().to_string(),
-            &orig_dir.to_string_lossy().to_string(),
-        );
+    let history = create_filled_example_history(
+        &home_dir.to_string_lossy().to_string(),
+        &orig_dir.to_string_lossy().to_string(),
+    );
 
-        let mut line_editor = Reedline::create()
-            .with_hinter(Box::new(
-                CwdAwareHinter::default().with_style(Style::new().italic().fg(Color::Yellow)),
-            ))
-            .with_history(history);
+    let mut line_editor = Reedline::create()
+        .with_hinter(Box::new(
+            CwdAwareHinter::default().with_style(Style::new().italic().fg(Color::Yellow)),
+        ))
+        .with_history(history);
 
-        let prompt = DefaultPrompt::default();
+    let prompt = DefaultPrompt::default();
 
-        let mut iterations = 0;
-        loop {
-            if iterations % 2 == 0 {
-                std::env::set_current_dir(&orig_dir).unwrap();
-            } else {
-                std::env::set_current_dir(&home_dir).unwrap();
+    let mut iterations = 0;
+    loop {
+        if iterations % 2 == 0 {
+            std::env::set_current_dir(&orig_dir).unwrap();
+        } else {
+            std::env::set_current_dir(&home_dir).unwrap();
+        }
+        let sig = line_editor.read_line(&prompt)?;
+        match sig {
+            Signal::Success(buffer) => {
+                println!("We processed: {buffer}");
             }
-            let sig = line_editor.read_line(&prompt)?;
-            match sig {
-                Signal::Success(buffer) => {
-                    println!("We processed: {buffer}");
-                }
-                Signal::CtrlD | Signal::CtrlC => {
-                    println!("\nAborted!");
-                    break Ok(());
-                }
+            Signal::CtrlD | Signal::CtrlC => {
+                println!("\nAborted!");
+                break Ok(());
             }
-            iterations += 1;
         }
-    };
-
-    #[cfg(not(any(feature = "sqlite", feature = "sqlite-dynlib")))]
-    panic!("cwd-aware hinter needs sqlite backed history");
+        iterations += 1;
+    }
 }