Create system for generating Makefiles

2018-06-09 23:49:01 +02:00
parent c8d1ce47fe
commit f35a89e10b
12 changed files with 762 additions and 0 deletions
@@ -0,0 +1,135 @@
+#include "Makefile.h"
+#include <map>
+#include <errno.h>
+#include <dirent.h>
+#include <cstring>
+#include <fstream>
+#include "Logging.h"
+#include "IncludeDeps.h"
+
+void Makefile::GetAllFiles(const std::string& folder, std::vector<std::string>& files)
+{
+  DIR* dp;
+  struct dirent *dirp;
+  if((dp = opendir(folder.c_str())) == NULL){
+    LOG_ERROR(errno);
+    return;
+  }
+  while((dirp = readdir(dp)) != NULL)
+  {
+    if(dirp->d_type == DT_DIR)
+    {
+      if(strcmp(dirp->d_name,".") == 0)
+        continue;
+      if(strcmp(dirp->d_name,"..") == 0)
+        continue;
+      GetAllFiles(folder+dirp->d_name+"/", files);
+    }
+    else
+    {
+      files.push_back(folder+dirp->d_name);
+    }
+  }
+  closedir(dp);
+}
+
+void Makefile::Save(const ConfigFile& conf)
+{
+  std::map<std::string, std::string> hFiles;
+  std::map<std::string, std::string> cppFiles;
+  PreSave(conf,hFiles,cppFiles);
+
+  std::ofstream outputFile("Makefile");
+  outputFile << "CC=@g++" << std::endl;
+  if(!conf.executable)
+    outputFile << "CO=@ar rs" << std::endl;
+  else
+    outputFile << "CO=@g++ -o" << std::endl;
+
+  outputFile << "BIN=" << conf.outputdir << std::endl;
+  outputFile << "OBJPATH=$(BIN)intermediates" << std::endl;
+  outputFile << "INCLUDES=";
+  for(auto it = conf.includedirs.begin();it!=conf.includedirs.end();++it)
+  {
+    outputFile << "-I./" << *it << " ";
+  }
+  outputFile << std::endl;
+  outputFile << "OBJECTS=";
+  for(auto it = cppFiles.begin();it!=cppFiles.end();++it)
+  {
+    size_t extensionPos = it->first.find_last_of(".");
+    size_t slash = it->first.find_last_of("/")+1;
+    outputFile << "$(OBJPATH)/" << it->first.substr(slash, extensionPos - slash) << ".o ";
+  }
+  outputFile << std::endl;
+  outputFile << "CFLAGS=$(INCLUDES) -std=c++17 -c -w -g3 ";
+  for(auto it = conf.defines.begin();it!=conf.defines.end();++it)
+  {
+    outputFile << "-D" << *it << " ";
+  }
+  outputFile << std::endl;
+  outputFile << "LIBS=";
+  for(auto it = conf.libs.begin();it!=conf.libs.end();++it)
+  {
+    outputFile << "-l:" << *it << " ";
+  }
+  outputFile << std::endl;
+  outputFile << "OUTPUT=$(BIN)" << conf.outputname << std::endl;
+  outputFile << "all: $(OUTPUT)" << std::endl;
+  outputFile << "\t$(info ------------------------)" << std::endl;
+  outputFile << "\t$(info ---- Done Compiling ----)" << std::endl;
+  outputFile << "\t$(info ------------------------)" << std::endl;
+  outputFile << "rebuid: clean all" << std::endl;
+  outputFile << "clean:" << std::endl;
+  outputFile << "\t$(info Removing intermediates)" << std::endl;
+  outputFile << "\trm -rf $(OBJPATH)/*.o" << std::endl;
+  outputFile << "$(OUTPUT): $(OBJECTS)" << std::endl;
+  outputFile << "\t$(info Generating output file)" << std::endl;
+  outputFile << "\t$(CO) $(OUTPUT) $(OBJECTS) $(LIBS)" << std::endl;
+  outputFile << "install: all" << std::endl;
+  outputFile << "\tcp $(OUTPUT) /usr/bin/" << conf.outputname << std::endl;
+  std::map<std::string, IncludeDeps*> dependencies;
+  for(auto it = cppFiles.begin(); it!=cppFiles.end();++it)
+  {
+    auto itD = dependencies.find(it->first+it->second);
+    if(itD == dependencies.end())
+    {
+      IncludeDeps* deps = new IncludeDeps(it->first, it->second,hFiles,dependencies);
+      size_t extensionPos = it->first.find_last_of(".");
+      size_t slash = it->first.find_last_of("/")+1;
+      std::string oFile = it->first.substr(slash, extensionPos - slash)+".o ";
+      outputFile << "$(OBJPATH)/" << oFile << ": " << *deps << std::endl;
+      outputFile << "\t$(info ---- $<)" << std::endl;
+      outputFile << "\t$(CC) $(CFLAGS) -o $@ $<" << std::endl;
+      //std::cout << *deps << std::endl;
+    }
+  }
+}
+
+void Makefile::PreSave(const ConfigFile& conf, std::map<std::string, std::string>& hFiles, 
+    std::map<std::string, std::string>& cppFiles)
+{
+  for(auto itSrc = conf.srcdirs.begin();itSrc != conf.srcdirs.end();++itSrc)
+  {
+    std::vector<std::string> files;
+    GetAllFiles(*itSrc,files);
+    // include paramenter with the path of the file
+    // For example src/graphics/Window.h -> graphics/Window.h if src is a src folder 
+    for(auto it = files.begin(); it!=files.end();++it)
+    {
+      size_t extensionPos = it->find_last_of(".");
+      if(extensionPos != std::string::npos)
+      {
+        if(it->substr(extensionPos+1) == "cpp")
+        {
+          cppFiles.emplace(it->substr(itSrc->length()), *itSrc);
+        }
+        else
+        {
+          hFiles.emplace(it->substr(itSrc->length()), *itSrc);
+        }
+      }
+    }
+  }
+  
+}