ENH: Refactor cmInstallGenerator for re-use

A new cmScriptGenerator base class factors out the non-install-specific
part of cmInstallGenerator.  This will be useful for other generators
that want per-configuration functionality.

8 files changed, 345 insertions, 211 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index d977a46..89ee0ad 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -201,6 +201,8 @@ SET(SRCS
   cmPropertyDefinitionMap.h
   cmPropertyMap.cxx
   cmPropertyMap.h
+  cmScriptGenerator.h
+  cmScriptGenerator.cxx
   cmSourceFile.cxx
   cmSourceFile.h
   cmSourceFileLocation.cxx
diff --git a/Source/cmInstallGenerator.cxx b/Source/cmInstallGenerator.cxx
index c2e0256..94a7080 100644
--- a/Source/cmInstallGenerator.cxx
+++ b/Source/cmInstallGenerator.cxx
@@ -24,11 +24,9 @@ cmInstallGenerator
 ::cmInstallGenerator(const char* destination,
                      std::vector<std::string> const& configurations,
                      const char* component):
+  cmScriptGenerator("CMAKE_INSTALL_CONFIG_NAME", configurations),
   Destination(destination? destination:""),
-  Configurations(configurations),
-  Component(component? component:""),
-  ConfigurationName(0),
-  ConfigurationTypes(0)
+  Component(component? component:"")
 {
 }
 
@@ -39,19 +37,6 @@ cmInstallGenerator
 }
 
 //----------------------------------------------------------------------------
-void
-cmInstallGenerator
-::Generate(std::ostream& os, const char* config,
-           std::vector<std::string> const& configurationTypes)
-{
-  this->ConfigurationName = config;
-  this->ConfigurationTypes = &configurationTypes;
-  this->GenerateScript(os);
-  this->ConfigurationName = 0;
-  this->ConfigurationTypes = 0;
-}
-
-//----------------------------------------------------------------------------
 void cmInstallGenerator
 ::AddInstallRule(
                  std::ostream& os,
@@ -63,7 +48,7 @@ void cmInstallGenerator
                  const char* permissions_dir /* = 0 */,
                  const char* rename /* = 0 */,
                  const char* literal_args /* = 0 */,
-                 cmInstallGeneratorIndent const& indent
+                 Indent const& indent
                  )
 {
   // Use the FILE command to install the file.
@@ -128,63 +113,6 @@ void cmInstallGenerator
 }
 
 //----------------------------------------------------------------------------
-static void cmInstallGeneratorEncodeConfig(const char* config,
-                                           std::string& result)
-{
-  for(const char* c = config; *c; ++c)
-    {
-    if(*c >= 'a' && *c <= 'z')
-      {
-      result += "[";
-      result += *c + ('A' - 'a');
-      result += *c;
-      result += "]";
-      }
-    else if(*c >= 'A' && *c <= 'Z')
-      {
-      result += "[";
-      result += *c;
-      result += *c + ('a' - 'A');
-      result += "]";
-      }
-    else
-      {
-      result += *c;
-      }
-    }
-}
-
-//----------------------------------------------------------------------------
-std::string
-cmInstallGenerator::CreateConfigTest(const char* config)
-{
-  std::string result = "\"${CMAKE_INSTALL_CONFIG_NAME}\" MATCHES \"^(";
-  if(config && *config)
-    {
-    cmInstallGeneratorEncodeConfig(config, result);
-    }
-  result += ")$\"";
-  return result;
-}
-
-//----------------------------------------------------------------------------
-std::string
-cmInstallGenerator::CreateConfigTest(std::vector<std::string> const& configs)
-{
-  std::string result = "\"${CMAKE_INSTALL_CONFIG_NAME}\" MATCHES \"^(";
-  const char* sep = "";
-  for(std::vector<std::string>::const_iterator ci = configs.begin();
-      ci != configs.end(); ++ci)
-    {
-    result += sep;
-    sep = "|";
-    cmInstallGeneratorEncodeConfig(ci->c_str(), result);
-    }
-  result += ")$\"";
-  return result;
-}
-
-//----------------------------------------------------------------------------
 std::string
 cmInstallGenerator::CreateComponentTest(const char* component)
 {
@@ -214,53 +142,9 @@ void cmInstallGenerator::GenerateScript(std::ostream& os)
 }
 
 //----------------------------------------------------------------------------
-void
-cmInstallGenerator::GenerateScriptConfigs(std::ostream& os,
-                                          Indent const& indent)
-{
-  if(this->Configurations.empty())
-    {
-    // This rule is for all configurations.
-    this->GenerateScriptActions(os, indent);
-    }
-  else
-    {
-    // Generate a per-configuration block.
-    std::string config_test = this->CreateConfigTest(this->Configurations);
-    os << indent << "IF(" << config_test << ")\n";
-    this->GenerateScriptActions(os, indent.Next());
-    os << indent << "ENDIF(" << config_test << ")\n";
-    }
-}
-
-//----------------------------------------------------------------------------
-void cmInstallGenerator::GenerateScriptActions(std::ostream&, Indent const&)
-{
-  // No actions for this generator.
-}
-
-//----------------------------------------------------------------------------
 bool cmInstallGenerator::InstallsForConfig(const char* config)
 {
-  // If this is not a configuration-specific rule then we install.
-  if(this->Configurations.empty())
-    {
-    return true;
-    }
-
-  // This is a configuration-specific rule.  Check if the config
-  // matches this rule.
-  std::string config_upper = cmSystemTools::UpperCase(config?config:"");
-  for(std::vector<std::string>::const_iterator i =
-        this->Configurations.begin();
-      i != this->Configurations.end(); ++i)
-    {
-    if(cmSystemTools::UpperCase(*i) == config_upper)
-      {
-      return true;
-      }
-    }
-  return false;
+  return this->GeneratesForConfig(config);
 }
 
 //----------------------------------------------------------------------------
diff --git a/Source/cmInstallGenerator.h b/Source/cmInstallGenerator.h
index 904bb2b..a6da119 100644
--- a/Source/cmInstallGenerator.h
+++ b/Source/cmInstallGenerator.h
@@ -17,41 +17,15 @@
 #ifndef cmInstallGenerator_h
 #define cmInstallGenerator_h
 
-#include "cmStandardIncludes.h"
+#include "cmScriptGenerator.h"
 
 class cmLocalGenerator;
 
-class cmInstallGeneratorIndent
-{
-public:
-  cmInstallGeneratorIndent(): Level(0) {}
-  cmInstallGeneratorIndent(int level): Level(level) {}
-  void Write(std::ostream& os) const
-    {
-    for(int i=0; i < this->Level; ++i)
-      {
-      os << " ";
-      }
-    }
-  cmInstallGeneratorIndent Next(int step = 2) const
-    {
-    return cmInstallGeneratorIndent(this->Level + step);
-    }
-private:
-  int Level;
-};
-inline std::ostream& operator<<(std::ostream& os,
-                                cmInstallGeneratorIndent const& indent)
-{
-  indent.Write(os);
-  return os;
-}
-
 /** \class cmInstallGenerator
  * \brief Support class for generating install scripts.
  *
  */
-class cmInstallGenerator
+class cmInstallGenerator: public cmScriptGenerator
 {
 public:
   cmInstallGenerator(const char* destination,
@@ -59,9 +33,6 @@ public:
                      const char* component);
   virtual ~cmInstallGenerator();
 
-  void Generate(std::ostream& os, const char* config,
-                std::vector<std::string> const& configurationTypes);
-
   void AddInstallRule(
     std::ostream& os, int type,
     std::vector<std::string> const& files,
@@ -71,13 +42,11 @@ public:
     const char* permissions_dir = 0,
     const char* rename = 0,
     const char* literal_args = 0,
-    cmInstallGeneratorIndent const& indent = cmInstallGeneratorIndent()
+    Indent const& indent = Indent()
     );
 
   const char* GetDestination() const
     { return this->Destination.c_str(); }
-  const std::vector<std::string>& GetConfigurations() const
-    { return this->Configurations; }
 
   /** Get the install destination as it should appear in the
       installation script.  */
@@ -87,23 +56,13 @@ public:
   bool InstallsForConfig(const char*);
 
 protected:
-  typedef cmInstallGeneratorIndent Indent;
   virtual void GenerateScript(std::ostream& os);
-  virtual void GenerateScriptConfigs(std::ostream& os, Indent const& indent);
-  virtual void GenerateScriptActions(std::ostream& os, Indent const& indent);
 
-  std::string CreateConfigTest(const char* config);
-  std::string CreateConfigTest(std::vector<std::string> const& configs);
   std::string CreateComponentTest(const char* component);
 
   // Information shared by most generator types.
   std::string Destination;
-  std::vector<std::string> const Configurations;
   std::string Component;
-
-  // Information used during generation.
-  const char* ConfigurationName;
-  std::vector<std::string> const* ConfigurationTypes;
 };
 
 #endif
diff --git a/Source/cmInstallTargetGenerator.cxx b/Source/cmInstallTargetGenerator.cxx
index fabcb0a..b8df71e 100644
--- a/Source/cmInstallTargetGenerator.cxx
+++ b/Source/cmInstallTargetGenerator.cxx
@@ -33,6 +33,7 @@ cmInstallTargetGenerator
   cmInstallGenerator(dest, configurations, component), Target(&t),
   ImportLibrary(implib), FilePermissions(file_permissions), Optional(optional)
 {
+  this->ActionsPerConfig = true;
   this->NamelinkMode = NamelinkModeNone;
   this->Target->SetHaveInstallRule(true);
 }
@@ -76,48 +77,6 @@ void cmInstallTargetGenerator::GenerateScript(std::ostream& os)
 }
 
 //----------------------------------------------------------------------------
-void cmInstallTargetGenerator::GenerateScriptConfigs(std::ostream& os,
-                                                     Indent const& indent)
-{
-  if(this->ConfigurationTypes->empty())
-    {
-    // In a single-configuration generator, only the install rule's
-    // configuration test is important.  If that passes, the target is
-    // installed regardless of for what configuration it was built.
-    this->cmInstallGenerator::GenerateScriptConfigs(os, indent);
-    }
-  else
-    {
-    // In a multi-configuration generator, a separate rule is produced
-    // in a block for each configuration that is built.  However, the
-    // list of configurations is restricted to those for which this
-    // install rule applies.
-    for(std::vector<std::string>::const_iterator i =
-          this->ConfigurationTypes->begin();
-        i != this->ConfigurationTypes->end(); ++i)
-      {
-      const char* config = i->c_str();
-      if(this->InstallsForConfig(config))
-        {
-        // Generate a per-configuration block.
-        std::string config_test = this->CreateConfigTest(config);
-        os << indent << "IF(" << config_test << ")\n";
-        this->GenerateScriptForConfig(os, config, indent.Next());
-        os << indent << "ENDIF(" << config_test << ")\n";
-        }
-      }
-    }
-}
-
-//----------------------------------------------------------------------------
-void cmInstallTargetGenerator::GenerateScriptActions(std::ostream& os,
-                                                     Indent const& indent)
-{
-  // This is reached for single-configuration generators only.
-  this->GenerateScriptForConfig(os, this->ConfigurationName, indent);
-}
-
-//----------------------------------------------------------------------------
 void cmInstallTargetGenerator::GenerateScriptForConfig(std::ostream& os,
                                                        const char* config,
                                                        Indent const& indent)
diff --git a/Source/cmInstallTargetGenerator.h b/Source/cmInstallTargetGenerator.h
index aa4db86..3a2f0d0 100644
--- a/Source/cmInstallTargetGenerator.h
+++ b/Source/cmInstallTargetGenerator.h
@@ -65,11 +65,9 @@ public:
 
 protected:
   virtual void GenerateScript(std::ostream& os);
-  virtual void GenerateScriptConfigs(std::ostream& os, Indent const& indent);
-  virtual void GenerateScriptActions(std::ostream& os, Indent const& indent);
-  void GenerateScriptForConfig(std::ostream& os,
-                               const char* config,
-                               Indent const& indent);
+  virtual void GenerateScriptForConfig(std::ostream& os,
+                                       const char* config,
+                                       Indent const& indent);
   void AddInstallNamePatchRule(std::ostream& os, Indent const& indent,
                                const char* config,
                                const std::string& toDestDirPath);
diff --git a/Source/cmScriptGenerator.cxx b/Source/cmScriptGenerator.cxx
new file mode 100644
index 0000000..c3a521a
--- /dev/null
+++ b/Source/cmScriptGenerator.cxx
@@ -0,0 +1,232 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmScriptGenerator.h"
+
+#include "cmSystemTools.h"
+
+//----------------------------------------------------------------------------
+cmScriptGenerator
+::cmScriptGenerator(const char* config_var,
+                    std::vector<std::string> const& configurations):
+  RuntimeConfigVariable(config_var),
+  Configurations(configurations),
+  ConfigurationName(0),
+  ConfigurationTypes(0),
+  ActionsPerConfig(false)
+{
+}
+
+//----------------------------------------------------------------------------
+cmScriptGenerator
+::~cmScriptGenerator()
+{
+}
+
+//----------------------------------------------------------------------------
+void
+cmScriptGenerator
+::Generate(std::ostream& os, const char* config,
+           std::vector<std::string> const& configurationTypes)
+{
+  this->ConfigurationName = config;
+  this->ConfigurationTypes = &configurationTypes;
+  this->GenerateScript(os);
+  this->ConfigurationName = 0;
+  this->ConfigurationTypes = 0;
+}
+
+//----------------------------------------------------------------------------
+static void cmScriptGeneratorEncodeConfig(const char* config,
+                                          std::string& result)
+{
+  for(const char* c = config; *c; ++c)
+    {
+    if(*c >= 'a' && *c <= 'z')
+      {
+      result += "[";
+      result += *c + ('A' - 'a');
+      result += *c;
+      result += "]";
+      }
+    else if(*c >= 'A' && *c <= 'Z')
+      {
+      result += "[";
+      result += *c;
+      result += *c + ('a' - 'A');
+      result += "]";
+      }
+    else
+      {
+      result += *c;
+      }
+    }
+}
+
+//----------------------------------------------------------------------------
+std::string
+cmScriptGenerator::CreateConfigTest(const char* config)
+{
+  std::string result = "\"${";
+  result += this->RuntimeConfigVariable;
+  result += "}\" MATCHES \"^(";
+  if(config && *config)
+    {
+    cmScriptGeneratorEncodeConfig(config, result);
+    }
+  result += ")$\"";
+  return result;
+}
+
+//----------------------------------------------------------------------------
+std::string
+cmScriptGenerator::CreateConfigTest(std::vector<std::string> const& configs)
+{
+  std::string result = "\"${";
+  result += this->RuntimeConfigVariable;
+  result += "}\" MATCHES \"^(";
+  const char* sep = "";
+  for(std::vector<std::string>::const_iterator ci = configs.begin();
+      ci != configs.end(); ++ci)
+    {
+    result += sep;
+    sep = "|";
+    cmScriptGeneratorEncodeConfig(ci->c_str(), result);
+    }
+  result += ")$\"";
+  return result;
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScript(std::ostream& os)
+{
+  // Track indentation.
+  Indent indent;
+
+  // Generate the script possibly with per-configuration code.
+  this->GenerateScriptConfigs(os, indent);
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScriptConfigs(std::ostream& os,
+                                              Indent const& indent)
+{
+  if(this->ActionsPerConfig)
+    {
+    this->GenerateScriptActionsPerConfig(os, indent);
+    }
+  else
+    {
+    this->GenerateScriptActionsOnce(os, indent);
+    }
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScriptActions(std::ostream& os,
+                                              Indent const& indent)
+{
+  if(this->ActionsPerConfig)
+    {
+    // This is reached for single-configuration build generators in a
+    // per-config script generator.
+    this->GenerateScriptForConfig(os, this->ConfigurationName, indent);
+    }
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScriptForConfig(std::ostream&, const char*,
+                                                Indent const&)
+{
+  // No actions for this generator.
+}
+
+//----------------------------------------------------------------------------
+bool cmScriptGenerator::GeneratesForConfig(const char* config)
+{
+  // If this is not a configuration-specific rule then we install.
+  if(this->Configurations.empty())
+    {
+    return true;
+    }
+
+  // This is a configuration-specific rule.  Check if the config
+  // matches this rule.
+  std::string config_upper = cmSystemTools::UpperCase(config?config:"");
+  for(std::vector<std::string>::const_iterator i =
+        this->Configurations.begin();
+      i != this->Configurations.end(); ++i)
+    {
+    if(cmSystemTools::UpperCase(*i) == config_upper)
+      {
+      return true;
+      }
+    }
+  return false;
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScriptActionsOnce(std::ostream& os,
+                                                  Indent const& indent)
+{
+  if(this->Configurations.empty())
+    {
+    // This rule is for all configurations.
+    this->GenerateScriptActions(os, indent);
+    }
+  else
+    {
+    // Generate a per-configuration block.
+    std::string config_test = this->CreateConfigTest(this->Configurations);
+    os << indent << "IF(" << config_test << ")\n";
+    this->GenerateScriptActions(os, indent.Next());
+    os << indent << "ENDIF(" << config_test << ")\n";
+    }
+}
+
+//----------------------------------------------------------------------------
+void cmScriptGenerator::GenerateScriptActionsPerConfig(std::ostream& os,
+                                                       Indent const& indent)
+{
+  if(this->ConfigurationTypes->empty())
+    {
+    // In a single-configuration generator there is only one action
+    // and it applies if the runtime-requested configuration is among
+    // the rule's allowed configurations.  The configuration built in
+    // the tree does not matter for this decision but will be used to
+    // generate proper target file names into the code.
+    this->GenerateScriptActionsOnce(os, indent);
+    }
+  else
+    {
+    // In a multi-configuration generator we produce a separate rule
+    // in a block for each configuration that is built.  We restrict
+    // the list of configurations to those to which this rule applies.
+    for(std::vector<std::string>::const_iterator i =
+          this->ConfigurationTypes->begin();
+        i != this->ConfigurationTypes->end(); ++i)
+      {
+      const char* config = i->c_str();
+      if(this->GeneratesForConfig(config))
+        {
+        // Generate a per-configuration block.
+        std::string config_test = this->CreateConfigTest(config);
+        os << indent << "IF(" << config_test << ")\n";
+        this->GenerateScriptForConfig(os, config, indent.Next());
+        os << indent << "ENDIF(" << config_test << ")\n";
+        }
+      }
+    }
+}
diff --git a/Source/cmScriptGenerator.h b/Source/cmScriptGenerator.h
new file mode 100644
index 0000000..b777001
--- /dev/null
+++ b/Source/cmScriptGenerator.h
@@ -0,0 +1,99 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmScriptGenerator_h
+#define cmScriptGenerator_h
+
+#include "cmStandardIncludes.h"
+
+class cmScriptGeneratorIndent
+{
+public:
+  cmScriptGeneratorIndent(): Level(0) {}
+  cmScriptGeneratorIndent(int level): Level(level) {}
+  void Write(std::ostream& os) const
+    {
+    for(int i=0; i < this->Level; ++i)
+      {
+      os << " ";
+      }
+    }
+  cmScriptGeneratorIndent Next(int step = 2) const
+    {
+    return cmScriptGeneratorIndent(this->Level + step);
+    }
+private:
+  int Level;
+};
+inline std::ostream& operator<<(std::ostream& os,
+                                cmScriptGeneratorIndent const& indent)
+{
+  indent.Write(os);
+  return os;
+}
+
+/** \class cmScriptGenerator
+ * \brief Support class for generating install and test scripts.
+ *
+ */
+class cmScriptGenerator
+{
+public:
+  cmScriptGenerator(const char* config_var,
+                    std::vector<std::string> const& configurations);
+  virtual ~cmScriptGenerator();
+
+  void Generate(std::ostream& os, const char* config,
+                std::vector<std::string> const& configurationTypes);
+
+  const std::vector<std::string>& GetConfigurations() const
+    { return this->Configurations; }
+
+protected:
+  typedef cmScriptGeneratorIndent Indent;
+  virtual void GenerateScript(std::ostream& os);
+  virtual void GenerateScriptConfigs(std::ostream& os, Indent const& indent);
+  virtual void GenerateScriptActions(std::ostream& os, Indent const& indent);
+  virtual void GenerateScriptForConfig(std::ostream& os,
+                                       const char* config,
+                                       Indent const& indent);
+
+  // Test if this generator does something for a given configuration.
+  bool GeneratesForConfig(const char*);
+
+  std::string CreateConfigTest(const char* config);
+  std::string CreateConfigTest(std::vector<std::string> const& configs);
+  std::string CreateComponentTest(const char* component);
+
+  // Information shared by most generator types.
+  std::string RuntimeConfigVariable;
+  std::vector<std::string> const Configurations;
+
+  // Information used during generation.
+  const char* ConfigurationName;
+  std::vector<std::string> const* ConfigurationTypes;
+
+  // True if the subclass needs to generate an explicit rule for each
+  // configuration.  False if the subclass only generates one rule for
+  // all enabled configurations.
+  bool ActionsPerConfig;
+
+private:
+  void GenerateScriptActionsOnce(std::ostream& os, Indent const& indent);
+  void GenerateScriptActionsPerConfig(std::ostream& os, Indent const& indent);
+};
+
+#endif
diff --git a/bootstrap b/bootstrap
index e6229cf..9b27930 100755
--- a/bootstrap
+++ b/bootstrap
@@ -167,6 +167,7 @@ CMAKE_CXX_SOURCES="\
   cmInstallFilesGenerator \
   cmInstallScriptGenerator \
   cmInstallTargetGenerator \
+  cmScriptGenerator \
   cmSourceFile \
   cmSourceFileLocation \
   cmSystemTools \