lib/utils.rb in SimBot-0.1.4 vs lib/utils.rb in SimBot-0.1.5

@@ -17,7 +17,31 @@
     # fetch bch/xrp price from coin market cap
     response = RestClient.get('https://api.coinmarketcap.com/v2/ticker/1765/?convert=ETH')
     hash = JSON.parse (response.body)
     return hash['data']['quotes']['ETH']['price'].to_f.round(4)
   end
+
+  # Try and read the existing pid from the pid file and signal the
+  # process. Returns true for a non blocking status.
+  def self.kill_process(pid)
+    opid = File.read("#{pid}.pid").strip.to_i
+    Process.kill "HUP", opid
+    File.delete("#{pid}.pid")
+    File.delete("#{pid}.outfile")
+    File.delete("#{pid}.errfile")
+    puts "Stopped process #{pid}"
+    true
+  rescue Errno::ENOENT
+    $stdout.puts "#{pid} did not exist: Errno::ENOENT"
+    true
+  rescue Errno::ESRCH
+    $stdout.puts "The process #{opid} did not exist: Errno::ESRCH"
+    true
+  rescue Errno::EPERM
+    $stderr.puts "Lack of privileges to manage the process #{opid}: Errno::EPERM"
+    false
+  rescue ::Exception => e
+    $stderr.puts "While signaling the PID, unexpected #{e.class}: #{e}"
+    false
+  end
 end