Set logging to output to file as well

cuddle_cli/src/main.rs

@@ -1,5 +1,7 @@
+use std::fs::File;
+
 use config::CuddleConfig;
-use simplelog::{ColorChoice, Config, TermLogger, TerminalMode};
+use simplelog::{ColorChoice, CombinedLogger, Config, TermLogger, TerminalMode, WriteLogger};
 
 mod actions;
 mod cli;
@@ -8,14 +10,7 @@ mod context;
 mod model;
 
 fn main() -> anyhow::Result<()> {
-    TermLogger::init(
-        log::LevelFilter::Info,
-        Config::default(),
-        TerminalMode::Mixed,
-        ColorChoice::Auto,
-    )?;
-
-    log::set_max_level(log::LevelFilter::Info);
+    init_logging()?;
 
     let config = CuddleConfig::from_env()?;
 
@@ -24,3 +19,24 @@ fn main() -> anyhow::Result<()> {
 
     Ok(())
 }
+
+fn init_logging() -> anyhow::Result<()> {
+    let mut log_file = dirs::state_dir().ok_or(anyhow::anyhow!("could not find state_dir"))?;
+    log_file.push("cuddle_cli.log");
+
+    CombinedLogger::init(vec![
+        TermLogger::new(
+            log::LevelFilter::Info,
+            Config::default(),
+            TerminalMode::Mixed,
+            ColorChoice::Auto,
+        ),
+        WriteLogger::new(
+            log::LevelFilter::Debug,
+            Config::default(),
+            File::create(log_file).unwrap(),
+        ),
+    ])?;
+
+    Ok(())
+}