file(INSTALL): Add undocumented options to control output verbosity

Create options "MESSAGE_ALWAYS", "MESSAGE_LAZY", and "MESSAGE_NEVER" to
specify whether to print the "Installing" and "Up-to-date" messages.
Extend the RunCMake.file test with cases covering these options.

1 files changed, 58 insertions, 3 deletions

diff --git a/Source/cmFileCommand.cxx b/Source/cmFileCommand.cxx
index 99c7ad13ea..61c6eb34f9 100644
--- a/Source/cmFileCommand.cxx
+++ b/Source/cmFileCommand.cxx
@@ -1705,6 +1705,9 @@ struct cmFileInstaller: public cmFileCopier
     cmFileCopier(command, "INSTALL"),
     InstallType(cmInstallType_FILES),
     Optional(false),
+    MessageAlways(false),
+    MessageLazy(false),
+    MessageNever(false),
     DestDirLength(0)
     {
     // Installation does not use source permissions by default.
@@ -1726,6 +1729,9 @@ struct cmFileInstaller: public cmFileCopier
 protected:
   cmInstallType InstallType;
   bool Optional;
+  bool MessageAlways;
+  bool MessageLazy;
+  bool MessageNever;
   int DestDirLength;
   std::string Rename;
 
@@ -1741,9 +1747,12 @@ protected:
 
   virtual void ReportCopy(const char* toFile, Type type, bool copy)
     {
-    std::string message = (copy? "Installing: " : "Up-to-date: ");
-    message += toFile;
-    this->Makefile->DisplayStatus(message.c_str(), -1);
+    if(!this->MessageNever && (copy || !this->MessageLazy))
+      {
+      std::string message = (copy? "Installing: " : "Up-to-date: ");
+      message += toFile;
+      this->Makefile->DisplayStatus(message.c_str(), -1);
+      }
     if(type != TypeDir)
       {
       // Add the file to the manifest.
@@ -1829,6 +1838,16 @@ bool cmFileInstaller::Parse(std::vector<std::string> const& args)
     return false;
     }
 
+  if(((this->MessageAlways?1:0) +
+      (this->MessageLazy?1:0) +
+      (this->MessageNever?1:0)) > 1)
+    {
+    this->FileCommand->SetError("INSTALL options MESSAGE_ALWAYS, "
+                                "MESSAGE_LAZY, and MESSAGE_NEVER "
+                                "are mutually exclusive.");
+    return false;
+    }
+
   return true;
 }
 
@@ -1880,6 +1899,42 @@ bool cmFileInstaller::CheckKeyword(std::string const& arg)
       this->Optional = true;
       }
     }
+  else if(arg == "MESSAGE_ALWAYS")
+    {
+    if(this->CurrentMatchRule)
+      {
+      this->NotAfterMatch(arg);
+      }
+    else
+      {
+      this->Doing = DoingNone;
+      this->MessageAlways = true;
+      }
+    }
+  else if(arg == "MESSAGE_LAZY")
+    {
+    if(this->CurrentMatchRule)
+      {
+      this->NotAfterMatch(arg);
+      }
+    else
+      {
+      this->Doing = DoingNone;
+      this->MessageLazy = true;
+      }
+    }
+  else if(arg == "MESSAGE_NEVER")
+    {
+    if(this->CurrentMatchRule)
+      {
+      this->NotAfterMatch(arg);
+      }
+    else
+      {
+      this->Doing = DoingNone;
+      this->MessageNever = true;
+      }
+    }
   else if(arg == "PERMISSIONS")
     {
     if(this->CurrentMatchRule)