install: Support generator expressions in FILES and PROGRAMS mode

Teach the install(FILES) and install(PROGRAMS) commands to evaluate
generator expressions in the list of files.

Extend the ExportImport test to cover installation cases involving
generator expressions.

1 files changed, 48 insertions, 3 deletions

diff --git a/Source/cmInstallFilesGenerator.cxx b/Source/cmInstallFilesGenerator.cxx
index 506dcbf..ec15044 100644
--- a/Source/cmInstallFilesGenerator.cxx
+++ b/Source/cmInstallFilesGenerator.cxx
@@ -11,6 +11,9 @@
 ============================================================================*/
 #include "cmInstallFilesGenerator.h"
 
+#include "cmGeneratorExpression.h"
+#include "cmSystemTools.h"
+
 //----------------------------------------------------------------------------
 cmInstallFilesGenerator
 ::cmInstallFilesGenerator(cmMakefile* mf,
@@ -27,6 +30,15 @@ cmInstallFilesGenerator
   FilePermissions(file_permissions),
   Rename(rename), Optional(optional)
 {
+  // We need per-config actions if any files have generator expressions.
+  for(std::vector<std::string>::const_iterator i = files.begin();
+      !this->ActionsPerConfig && i != files.end(); ++i)
+    {
+    if(cmGeneratorExpression::Find(*i) != std::string::npos)
+      {
+      this->ActionsPerConfig = true;
+      }
+    }
 }
 
 //----------------------------------------------------------------------------
@@ -36,8 +48,9 @@ cmInstallFilesGenerator
 }
 
 //----------------------------------------------------------------------------
-void cmInstallFilesGenerator::GenerateScriptActions(std::ostream& os,
-                                                    Indent const& indent)
+void cmInstallFilesGenerator::AddFilesInstallRule(
+  std::ostream& os, Indent const& indent,
+  std::vector<std::string> const& files)
 {
   // Write code to install the files.
   const char* no_dir_permissions = 0;
@@ -45,8 +58,40 @@ void cmInstallFilesGenerator::GenerateScriptActions(std::ostream& os,
                        (this->Programs
                         ? cmInstallType_PROGRAMS
                         : cmInstallType_FILES),
-                       this->Files,
+                       files,
                        this->Optional,
                        this->FilePermissions.c_str(), no_dir_permissions,
                        this->Rename.c_str(), 0, indent);
 }
+
+//----------------------------------------------------------------------------
+void cmInstallFilesGenerator::GenerateScriptActions(std::ostream& os,
+                                                    Indent const& indent)
+{
+  if(this->ActionsPerConfig)
+    {
+    this->cmInstallGenerator::GenerateScriptActions(os, indent);
+    }
+  else
+    {
+    this->AddFilesInstallRule(os, indent, this->Files);
+    }
+}
+
+//----------------------------------------------------------------------------
+void cmInstallFilesGenerator::GenerateScriptForConfig(std::ostream& os,
+                                                      const char* config,
+                                                      Indent const& indent)
+{
+  std::vector<std::string> files;
+  cmListFileBacktrace lfbt;
+  cmGeneratorExpression ge(lfbt);
+  for(std::vector<std::string>::const_iterator i = this->Files.begin();
+      i != this->Files.end(); ++i)
+    {
+    cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(*i);
+    cmSystemTools::ExpandListArgument(cge->Evaluate(this->Makefile, config),
+                                      files);
+    }
+  this->AddFilesInstallRule(os, indent, files);
+}