From 6c9d3df4d74180d397f4ffcdb0fd29751e18fa07 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Tue, 12 Sep 2000 05:37:54 -0400
Subject: [PATCH] NEW: class to collect all the flags from parent directories

---
 Source/cmCollectFlags.cxx | 109 ++++++++++++++++++++++++++++++++++++++
 Source/cmCollectFlags.h   |  96 +++++++++++++++++++++++++++++++++
 2 files changed, 205 insertions(+)
 create mode 100644 Source/cmCollectFlags.cxx
 create mode 100644 Source/cmCollectFlags.h

diff --git a/Source/cmCollectFlags.cxx b/Source/cmCollectFlags.cxx
new file mode 100644
index 000000000..c936718f0
--- /dev/null
+++ b/Source/cmCollectFlags.cxx
@@ -0,0 +1,109 @@
+#include "cmCollectFlags.h"
+#include "cmSystemTools.h"
+#include <fstream>
+#include <iterator>
+#include <iostream>
+
+cmCollectFlags::cmCollectFlags()
+{
+}
+
+cmCollectFlags::~cmCollectFlags()
+{
+}
+
+void cmCollectFlags::Print()
+{
+  std::ostream_iterator<std::string> out(std::cout, "\n");
+  std::cout << "m_IncludeDirectories " << std::endl;
+  std::copy(m_IncludeDirectories.begin(), m_IncludeDirectories.end(), out);
+  std::cout << "m_linkdirectories " << std::endl;
+  std::copy(m_LinkDirectories.begin(), m_LinkDirectories.end(), out);
+  std::cout << "m_LinkLibraries " << std::endl;
+  std::copy(m_LinkLibraries.begin(), m_LinkLibraries.end(), out);
+  std::cout << "m_LinkLibrariesWin32 " << std::endl;
+  std::copy(m_LinkLibrariesWin32.begin(), m_LinkLibrariesWin32.end(), out);
+  std::cout << "m_LinkLibrariesUnix " << std::endl;
+  std::copy(m_LinkLibrariesUnix.begin(), m_LinkLibrariesUnix.end(), out);
+}
+
+void cmCollectFlags::SetSourceHomeDirectory(const char* dir)
+{
+  m_SourceHomeDirectory = dir;
+  cmSystemTools::ConvertToUnixSlashes(m_SourceHomeDirectory);
+}
+
+void cmCollectFlags::SetStartDirectory(const char* dir)
+{
+  m_StartDirectory = dir;
+  cmSystemTools::ConvertToUnixSlashes(m_StartDirectory);
+}
+
+
+void cmCollectFlags::ParseDirectories()
+{
+  this->ParseDirectory(m_StartDirectory.c_str());
+}
+
+
+void cmCollectFlags::ParseFile(const char* filename)
+{
+  std::ifstream fin(filename);
+  if(!fin)
+    {
+    std::cerr << "error can not open file " << filename << std::endl;
+    return;
+    }
+  char inbuffer[2048];
+  while ( fin.getline(inbuffer, 2047 ) )
+    {
+    std::string line = inbuffer;
+    if(line.find("INCLUDE_DIRECTORIES") != std::string::npos)
+      {
+      cmSystemTools::ReadList(m_IncludeDirectories, fin);
+      }
+    if(line.find("LINK_DIRECTORIES") != std::string::npos)
+      {
+      cmSystemTools::ReadList(m_LinkDirectories, fin);
+      }
+    if(line.find("LINK_LIBRARIES") != std::string::npos)
+      {
+      cmSystemTools::ReadList(m_LinkLibraries, fin);
+      }
+    if(line.find("WIN32_LIBRARIES") != std::string::npos)
+      {
+      cmSystemTools::ReadList(m_LinkLibrariesWin32, fin);
+      }
+    if(line.find("UNIX_LIBRARIES") != std::string::npos)
+      {
+      cmSystemTools::ReadList(m_LinkLibrariesUnix, fin);
+      }
+    }
+}
+
+
+
+// Go until directory == m_cmHomeDirectory 
+// 1. fix slashes
+// 2. peal off /dir until home found, go no higher
+void cmCollectFlags::ParseDirectory(const char* dir)
+{
+  std::string listsFile = dir;
+  listsFile += "/CMakeLists.txt";
+  if(cmSystemTools::FileExists(listsFile.c_str()))
+    {
+    this->ParseFile(listsFile.c_str());
+    }
+  if(m_SourceHomeDirectory == dir)
+    {
+    return;
+    }
+
+  std::string dotdotDir = dir;
+  std::string::size_type pos = dotdotDir.rfind('/');
+  if(pos != std::string::npos)
+    {
+    dotdotDir = dotdotDir.substr(0, pos);
+    this->ParseDirectory(dotdotDir.c_str());
+    }
+}
diff --git a/Source/cmCollectFlags.h b/Source/cmCollectFlags.h
new file mode 100644
index 000000000..8f037da96
--- /dev/null
+++ b/Source/cmCollectFlags.h
@@ -0,0 +1,96 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+
+  Copyright (c) 2000 National Library of Medicine
+  All rights reserved.
+
+  See COPYRIGHT.txt for copyright details.
+
+=========================================================================*/
+/**
+ * cmCollectFlags - collect flags from CMakeLists.txt files.
+ */
+#ifndef cmCollectFlags_h
+#define cmCollectFlags_h
+
+#include <vector>
+#include <string>
+
+class cmCollectFlags
+{
+public:
+  cmCollectFlags();
+  ~cmCollectFlags ();
+  /**
+   * Set the home directory for the source code.
+   */
+  void SetSourceHomeDirectory(const char* dir);
+  /**
+   * Set the start directory to look for flags 
+   */
+  void SetStartDirectory(const char* dir);
+  /**
+   * Parse the directory and all of it's parents for config
+   * information
+   */
+  void ParseDirectories();
+  /**
+   * Print to standard out
+   */
+  void Print();
+  
+  
+  std::vector<std::string>& GetIncludeDirectories()
+    { 
+      return m_IncludeDirectories;
+    }
+  
+  std::vector<std::string>& GetLinkDirectories()
+    { 
+      return m_LinkDirectories;
+    }
+  
+  std::vector<std::string>& GetLinkLibraries()
+    { 
+      return m_LinkLibraries;
+    }
+  
+  std::vector<std::string>& GetLinkLibrariesWin32()
+    { 
+      return m_LinkLibrariesWin32;
+    }
+  
+  std::vector<std::string>& GetLinkLibrariesUnix()
+    { 
+      return m_LinkLibrariesUnix;
+    }
+  
+private:
+  /**
+   * Look for CMakeLists.txt files to parse in dir,
+   * then in dir's parents, until the SourceHome directory
+   * is found.
+   */
+  void ParseDirectory(const char* dir);
+  /**
+   * Parse a file for includes links and libs
+   */
+  void ParseFile(const char* dir);
+  
+  
+  std::string m_SourceHomeDirectory; // source code top level dir
+  std::string m_StartDirectory; // source code sub directory
+  std::vector<std::string> m_IncludeDirectories;
+  std::vector<std::string> m_LinkDirectories;
+  std::vector<std::string> m_LinkLibraries;
+  std::vector<std::string> m_LinkLibrariesWin32;
+  std::vector<std::string> m_LinkLibrariesUnix;
+};
+
+#endif