From 7613ac88d99b946fe28b1b17f5371f3b1f664224 Mon Sep 17 00:00:00 2001
From: "Alexander I. Chebykin" <alex.chebykin@gmail.com>
Date: Tue, 28 Jun 2022 01:36:02 +0300
Subject: [PATCH] Minor changes.

---
 README.md                                              |  8 ++++++--
 ...-watchdog.service.template => cai-watchdog.service} |  2 +-
 .../usr/local/bin/{send-mail.template => send-mail}    |  0
 .../bin/{send-telegram.template => send-telegram}      |  0
 src/main.rs                                            | 10 +++++++++-
 5 files changed, 16 insertions(+), 4 deletions(-)
 rename scripts/unix/{cai-watchdog.service.template => cai-watchdog.service} (83%)
 rename scripts/unix/usr/local/bin/{send-mail.template => send-mail} (100%)
 rename scripts/unix/usr/local/bin/{send-telegram.template => send-telegram} (100%)

diff --git a/README.md b/README.md
index 4879a70..71c98e9 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,13 @@ Watchdog for monitoring web-services
 
 ## Requirements
 
-**On \*nix:** OpenSSL 1.0.1, 1.0.2, 1.1.0, or 1.1.1 with headers (see https://github.com/sfackler/rust-openssl)
+###On \*nix
+- OpenSSL 1.0.1, 1.0.2, 1.1.0, or 1.1.1 with headers (see https://github.com/sfackler/rust-openssl)
+- Perl
+- Curl
 
-**On Windows:** Nothing
+###On Windows
+- PowerShell
 
 ## Configuration file
 
diff --git a/scripts/unix/cai-watchdog.service.template b/scripts/unix/cai-watchdog.service
similarity index 83%
rename from scripts/unix/cai-watchdog.service.template
rename to scripts/unix/cai-watchdog.service
index d180aec..7034f36 100644
--- a/scripts/unix/cai-watchdog.service.template
+++ b/scripts/unix/cai-watchdog.service
@@ -5,7 +5,7 @@ Description=Watchdog service
 User=wwwrun
 Group=www
 Type=simple
-ExecStart=/usr/local/bin/cai-watchdog
+ExecStart=/usr/local/sbin/cai-watchdog
 
 KillMode=control-group
 NotifyAccess=all
diff --git a/scripts/unix/usr/local/bin/send-mail.template b/scripts/unix/usr/local/bin/send-mail
similarity index 100%
rename from scripts/unix/usr/local/bin/send-mail.template
rename to scripts/unix/usr/local/bin/send-mail
diff --git a/scripts/unix/usr/local/bin/send-telegram.template b/scripts/unix/usr/local/bin/send-telegram
similarity index 100%
rename from scripts/unix/usr/local/bin/send-telegram.template
rename to scripts/unix/usr/local/bin/send-telegram
diff --git a/src/main.rs b/src/main.rs
index fadf284..d67882e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,9 +3,10 @@ extern crate ini;
 extern crate exitcode;
 
 use std::env;
+use std::path::Path;
+use std::process::Command;
 use std::thread;
 use std::time::Duration;
-use std::process::Command;
 
 /// Rule description structure
 pub struct Rule {
@@ -161,6 +162,13 @@ fn main() {
         "/etc/cai-watchdog.conf"
     };
 
+    if !Path::new(cfg_file).exists() {
+        println!("Error! Can't find configuration file.");
+        println!("Exiting...");
+
+        std::process::exit(exitcode::CONFIG);
+    }
+
     let cfg = ini!(cfg_file);
 
     let check_interval = cfg["main"]["check_interval"].clone().unwrap().parse::<u64>().unwrap() * 1000;