fix(startup): avoid first-launch config warning (#362)

Author: fcoury-oai

src/main.rs

@@ -208,6 +208,7 @@ fn session_root(config_dir: &Path) -> PathBuf {
 }
 
 async fn run_editor_inner(args: Args) -> anyhow::Result<()> {
+    fs::create_dir_all(Config::config_dir())?;
     let config_file = Config::path("config.toml");
     let preferences_file = Config::path("preferences.json");
     let first_launch = !config_file.exists() && !preferences_file.exists();

tests/first_launch.rs

@@ -0,0 +1,16 @@
+use std::process::Command;
+
+#[test]
+fn first_launch_creates_config_directory_before_opening_default_log() {
+    let config_home = tempfile::tempdir().unwrap();
+    let config_dir = config_home.path().join("red");
+
+    // A non-terminal run stops at raw-mode setup, after runtime config has loaded.
+    Command::new(env!("CARGO_BIN_EXE_red"))
+        .env("XDG_CONFIG_HOME", config_home.path())
+        .output()
+        .unwrap();
+
+    assert!(config_dir.join("red.log").is_file());
+    assert!(!config_dir.join("config.toml").exists());
+}