Add reset-config command that allows removing config file

swap/src/cli.rs

@@ -47,6 +47,10 @@ pub enum Command {
     },
     History,
     Resume(Resume),
+    ResetConfig {
+        #[structopt(flatten)]
+        config: Config,
+    },
 }
 
 #[derive(structopt::StructOpt, Debug)]

swap/src/config.rs

@@ -1,4 +1,4 @@
-use crate::fs::ensure_directory_exists;
+use crate::fs::{default_config_path, ensure_directory_exists};
 use anyhow::{Context, Result};
 use config::{Config, ConfigError};
 use dialoguer::{theme::ColorfulTheme, Input};
@@ -117,6 +117,21 @@ pub fn query_user_for_initial_testnet_config() -> Result<File> {
     })
 }
 
+pub fn reset_config(config_path: Option<PathBuf>) -> anyhow::Result<()> {
+    let config_path = if let Some(config_path) = config_path {
+        config_path
+    } else {
+        default_config_path()?
+    };
+
+    fs::remove_file(&config_path)
+        .with_context(|| format!("failed to remove config file {}", config_path.display()))?;
+
+    info!("Config file at {} was removed successfully. Initial setup will be re-triggered upon starting a swap.", config_path.as_path().display());
+
+    Ok(())
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -139,8 +154,10 @@ mod tests {
         };
 
         initial_setup(config_path.clone(), || Ok(expected.clone())).unwrap();
-        let actual = read_config(config_path).unwrap().unwrap();
-
+        let actual = read_config(config_path.clone()).unwrap().unwrap();
         assert_eq!(expected, actual);
+
+        reset_config(Some(config_path.clone())).unwrap();
+        assert!(!config_path.exists());
     }
 }

swap/src/main.rs

@@ -15,7 +15,8 @@
 use crate::{
     cli::{Command, Options, Resume},
     config::{
-        initial_setup, query_user_for_initial_testnet_config, read_config, ConfigNotInitialized,
+        initial_setup, query_user_for_initial_testnet_config, read_config, reset_config,
+        ConfigNotInitialized,
     },
 };
 use anyhow::{Context, Result};
@@ -204,6 +205,7 @@ async fn main() -> Result<()> {
             tokio::spawn(async move { event_loop.run().await });
             bob::run(swap).await?;
         }
+        Command::ResetConfig { config } => reset_config(config.config_path)?,
     };
 
     Ok(())