Hide install messages for cl-install --live.

Hide message in calculate-client and calculate-desktop
installation executed by cl-install --live.

pym/cl_install.py

@@ -29,6 +29,7 @@ from cl_utils import runOsCommand,appendProgramToEnvFile, \
 from cl_kernel_utils import KernelConfig,InitRamFs
 
 import cl_overriding
+from StringIO import StringIO
 
 install_errors = ""
 def installExit(*args,**kwars):
@@ -770,6 +771,8 @@ class cl_install(color_print):
         self.listBindsOptions = []
         self.listSwapsOptions = []
         self.startMessage = ""
+        self.stdoutHide = None
+        self.stderrHide = None
         Spinner().setWriteFunc(self.defaultPrint)
 
     def setNoColor(self):
@@ -1570,6 +1573,22 @@ class cl_install(color_print):
             os.unlink(nvidiaMaskFile)
         return res
 
+    def hideStdout(self):
+        if not self.stdoutHide:
+            self.stdoutHide = sys.stdout
+            self.stderrHide = sys.stderr
+            sys.stdout = StringIO()
+            sys.stderr = StringIO()
+            sys.stdout.fileno = self.stdoutHide.fileno
+            sys.stderr.fileno = self.stderrHide.fileno
+
+    def showStdout(self):
+        if self.stdoutHide:
+            sys.stdout = self.stdoutHide
+            sys.stderr = self.stderrHide
+            self.stdoutHide = None
+            self.stderrHide = None
+
     def configureSystem(self):
         """configure current system"""
         configureMessage = _("Configure system")
@@ -1589,9 +1608,14 @@ class cl_install(color_print):
                     if path.exists(desktopLib):
                         sys.path.insert(0, path.abspath(desktopLib))
                         from cl_desktop import desktop
+                        self.printMessageForTest(
+                         _("Link calculate-desktop to package configuration"))
+                        self.hideStdout()
                         objDesktop = desktop()
                         objDesktop.createClVars()
                         objDesktop.installProg()
+                        self.showStdout()
+                        self.printByResult(True)
 
                 # install client package
                 if linuxShortname in ("CLD","CLDG","CLDX"):
@@ -1599,12 +1623,17 @@ class cl_install(color_print):
                     if path.exists(clientLib):
                         sys.path.insert(0, path.abspath(clientLib))
                         from cl_client import client
+                        self.printMessageForTest(
+                         _("Link calculate-client to package configuration"))
                         objClient = client()
                         objClient.createClVars()
+                        self.hideStdout()
                         if hasattr(objClient,"updateEnvFiles") and \
                             objClient.updateEnvFiles():
                             objClient.clVars.flIniFile()
                         objClient.installProg()
+                        self.showStdout()
+                        self.printByResult(True)
 
                 objUsers = currentUsers()
                 if self.clVars.Get('os_root_type') == "livecd":
@@ -1631,6 +1660,7 @@ class cl_install(color_print):
                 keyInter = True
         except KeyboardInterrupt:
             keyInter = True
+        self.showStdout()
         if keyInter:
             if self.startMessage:
                 self.printByResult(False)