add ability to execute command in a given directory

src/python/dm/common/utility/dmSubprocess.py

@@ -26,17 +26,17 @@ class DmSubprocess(subprocess.Popen):
 
     # Execute command
     @classmethod
-    def executeCommand(cls, command):
+    def executeCommand(cls, command, cwd=None):
         """ Create subprocess and run it, return subprocess object. """
-        p = cls.getSubprocess(command)
+        p = cls.getSubprocess(command, cwd)
         p.run()
         return p
 
     # Execute command, ignore errors.
     @classmethod
-    def executeCommandAndIgnoreFailure(cls, command):
+    def executeCommandAndIgnoreFailure(cls, command, cwd=None):
         """ Create subprocess, run it, igore any failures, and return subprocess object. """
-        p = cls.getSubprocess(command)
+        p = cls.getSubprocess(command, cwd)
         try:
             p.run()
         except CommandFailed, ex:
@@ -44,9 +44,9 @@ class DmSubprocess(subprocess.Popen):
         return p
 
     @classmethod
-    def executeCommandAndLogToStdOut(cls, command):
+    def executeCommandAndLogToStdOut(cls, command, cwd=None):
         """ Execute command, display output to stdout, maintain log file and return subprocess object. """
-        p = cls.getSubprocess(command)
+        p = cls.getSubprocess(command, cwd)
         p.__commandLog()
 
         while True:
@@ -76,6 +76,7 @@ class DmSubprocess(subprocess.Popen):
         self._stdout = None
         self._stderr = None
         self._args = args
+        self._cwd = cwd
         self.useExceptions = useExceptions
         self.quietMode = quietMode
 
@@ -125,13 +126,25 @@ class DmSubprocess(subprocess.Popen):
     def getExitStatus(self):
         return self.returncode
 
+    def toDict(self):
+        result = { 
+            'command' : self._args,
+            'exitStatus' : self.returncode,
+            'stdErr' : self._stderr,
+            'stdOut' : self._stdout,
+            'workingDir' : self._cwd
+        }
+        return result
+
 #######################################################################
 # Testing.
 
 if __name__ == '__main__':
     p = DmSubprocess('ls -l', useExceptions=False)
+    print p.toDict()
     p.run()
-    print p.getStdOut()
-    print p.getStdErr()
-    print p.getExitStatus()
+    #print p.getStdOut()
+    #print p.getStdErr()
+    #print p.getExitStatus()
+    print p.toDict()