+ validate func

src/main.rs

@@ -3,7 +3,7 @@ mod utils;
 
 use clap::Parser;
 use log::{error, info};
-use options::config::*;
+use options::{config::*, preboot};
 use options::logger::setup_logger;
 use options::signals::set_valid_destructor;
 use options::structs::Processes;
@@ -18,6 +18,10 @@ use options::preboot::PrebootParams;
 async fn main() {
     let preboot = PrebootParams::parse().validate();
     
+    if let Err(_) = preboot {        
+        return;
+    }
+
     let _ = setup_logger();
 
     info!("Runner is configurating...");

src/options/preboot.rs

@@ -1,8 +1,7 @@
 // module to handle pre-boot params of the monitor
-use anyhow::{Result, Ok};
+use anyhow::{Result, Ok, Error};
 use clap::Parser;
-
-
+use std::path::PathBuf;
 
 #[derive(clap::ValueEnum, Debug, Clone)]
 enum MetricsPrebootParams {
@@ -28,41 +27,96 @@ impl std::fmt::Display for MetricsPrebootParams {
 #[derive(Debug, Parser)]
 pub struct PrebootParams {
     // actions
-    #[arg(long = "no-hagent", action, conflicts_with="socket_path", help="To disable work with host-agent")]
+    #[arg(
+        long = "no-hagent", 
+        action, 
+        conflicts_with="socket_path", 
+        help="To disable work with host-agent"
+    )]
     pub no_hostagent : bool,
-    #[arg(long = "no-logs", action, conflicts_with="log_to", help="To disable logs")]
+    #[arg(
+        long = "no-logs", 
+        action, 
+        conflicts_with="log_to", 
+        help="To disable logs"
+    )]
     pub no_logs: bool,
-    #[arg(long = "refresh-logs", action, conflicts_with="no_logs", help="To clear logs directory")]
+    #[arg(
+        long = "refresh-logs", 
+        action, 
+        conflicts_with="no_logs", 
+        help="To clear logs directory"
+    )]
     pub refresh_logs : bool,
-    #[arg(long = "no-remote-config", action, help="To disable work with remote config server", conflicts_with="no_sub")]
+    #[arg(
+        long = "no-remote-config", 
+        action, 
+        help="To disable work with remote config server", 
+        conflicts_with="no_sub")]
     pub no_remote_config : bool,
-    #[arg(long = "no-sub", action, help="To disable subscription mechanism", conflicts_with="no_remote_config")]
+    #[arg(
+        long = "no-sub", 
+        action, 
+        help="To disable subscription mechanism", 
+        conflicts_with="no_remote_config")]
     pub no_sub : bool,
     
     // params (socket_path, log_to, remote_server_url, config)
-    #[arg(long = "socket-path", default_value=None, conflicts_with="no_hostagent", help="To set .sock file's path used in communication with host-agent")]
-    socket_path : Option<String>,
-    #[arg(long = "log-to", default_value=None, conflicts_with="no_logs", help="To set a path to logs directory")]
-    log_to : Option<String>,
-    #[arg(long = "remote-server-url", default_value="redis://localhost", conflicts_with="no_remote_config", help = "To set url of remote config server using in remote config pulling mechanism")]
+    #[arg(
+        long = "socket-path", 
+        default_value="/var/run/enode/hostagent.sock", 
+        conflicts_with="no_hostagent", 
+        help="To set .sock file's path used in communication with host-agent"
+    )]
+    socket_path : PathBuf,
+    #[arg(
+        long = "log-to", 
+        default_value="./", 
+        conflicts_with="no_logs", 
+        help="To set a path to logs directory"
+    )]
+    log_to : PathBuf,
+    #[arg(
+        long = "remote-server-url", 
+        default_value="redis://localhost", 
+        conflicts_with="no_remote_config", 
+        help = "To set url of remote config server using in remote config pulling mechanism"
+    )]
     remote_server_url : String,
-    #[arg(long = "config", short, default_value="settings.json", help="To set local config file path")]
-    config : String,
+    #[arg(
+        long = "config", 
+        short, 
+        default_value="settings.json", 
+        help="To set local config file path"
+    )]
+    config : PathBuf,
 
     // value enum params (metrics)
-    #[arg(long = "metrics", short, default_value_t=MetricsPrebootParams::Full, help="To set metrics grubbing mode")]
+    #[arg(
+        long = "metrics", 
+        short, 
+        default_value_t=MetricsPrebootParams::Full, 
+        help="To set metrics grubbing mode"
+    )]
     metrics: MetricsPrebootParams,
 }
 
 impl PrebootParams {
     pub fn validate(self) -> Result<Self> {
-        // existing sock file
-
+        if !self.socket_path.exists() {
+            eprintln!("Socket-file {} doesn't exist. Cannot start", &self.socket_path.display());
+            return Err(Error::msg("Socket-file Not Found"));
+        }
         // existing log dir
-
-        // existing sock file
-
+        if !self.log_to.exists() {
+            eprintln!("Log directory {} doesn't exist", &self.log_to.display());
+            return Err(Error::msg("Log Directory Not Found. Cannot start"));
+        }
         // existing sock file
+        if !self.config.exists() {
+            eprintln!("Local config file {} doesn't exist", &self.config.display());
+            return Err(Error::msg("Local Config Not Found. Cannot start"));
+        }
         Ok(self)
     }
 }