lib/perus/pinger/metrics/process.rb in perus-0.1.2 vs lib/perus/pinger/metrics/process.rb in perus-0.1.3

@@ -8,15 +8,16 @@
         option :process_path, restricted: true
         option :name
         metric!
 
         def run
-            path = options.process_path.gsub("/", "\\\\\\/")
-            cpu, mem = `ps aux | awk '/#{path}/ {cpu += $3; mem += $4} END {print cpu, mem;}'`.split
-            if `uname -s`.strip == 'Darwin'
-                core_count = `sysctl -n hw.ncpu`
+            path = options.process_path.gsub("/", "\\/")
+            cpu, mem = shell("ps aux | awk '/#{path}/ {cpu += $3; mem += $4} END {print cpu, mem;}'").split
+
+            if darwin?
+                core_count = shell('sysctl -n hw.ncpu')
             else
-                core_count = `cat /proc/cpuinfo | grep processor | awk '{count += 1} END {print count}'`
+                core_count = shell("cat /proc/cpuinfo | grep processor | awk '{count += 1} END {print count}'")
             end
 
             {
                 "cpu_#{options.name}" => cpu.to_f / core_count.to_i,
                 "mem_#{options.name}" => mem.to_f