Add building and container recipes

CMakeLists.txt

@@ -0,0 +1,51 @@
+cmake_minimum_required(VERSION 3.14)
+
+project(FightingDependencies)
+
+# --- 1. Find Dependencies ---
+
+# Boost: We need filesystem (linked) and system. 
+# Container is header-only so it comes along for the ride.
+find_package(Boost REQUIRED COMPONENTS filesystem system)
+
+# deal.II: The heavy FEM library
+find_package(deal.II REQUIRED)
+
+# yaml-cpp: The manual install
+find_package(yaml-cpp REQUIRED)
+
+
+# --- 2. Define the Executable ---
+
+add_executable(main 
+    main.cpp
+    # We must compile the implementation files in the subdirectories
+    flatset/flatset.cpp
+    filesystem/filesystem.cpp
+    fem/fem.cpp
+    yamlParser/yamlParser.cpp
+)
+
+
+# --- 3. Include Directories ---
+
+# This allows main.cpp to do #include "flatset.hpp" without adding the path prefix
+target_include_directories(main PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/flatset
+    ${CMAKE_CURRENT_SOURCE_DIR}/filesystem
+    ${CMAKE_CURRENT_SOURCE_DIR}/fem
+    ${CMAKE_CURRENT_SOURCE_DIR}/yamlParser
+)
+
+
+# --- 4. Link Libraries ---
+
+# Link Boost and Yaml
+target_link_libraries(main  
+    Boost::filesystem 
+    yaml-cpp
+)
+
+# Deal.II usually prefers its own macro to setup the target
+# This attaches all necessary libraries and compile flags to 'main'
+DEAL_II_SETUP_TARGET(main)

Dockerfile

@@ -0,0 +1,42 @@
+FROM ubuntu:24.04
+
+# 1. Install standard build tools and library dependencies available in repo
+# - build-essential: gcc/g++ and make
+# - cmake: build system
+# - wget/unzip: to fetch yaml-cpp
+# - libboost-all-dev: Boost Container and Filesystem
+# - libdeal.ii-dev: The FEM library
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    cmake \
+    git \
+    wget \
+    unzip \
+    vim \
+    libboost-all-dev \
+    libdeal.ii-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# 2. The "Bonus" Task: Build yaml-cpp v0.6.3 from source
+WORKDIR /tmp
+RUN wget https://github.com/jbeder/yaml-cpp/archive/refs/tags/yaml-cpp-0.6.3.zip -O yaml-cpp.zip \
+    && unzip yaml-cpp.zip \
+    && cd yaml-cpp-yaml-cpp-0.6.3 \
+    && mkdir build \
+    && cd build \
+    && cmake -DYAML_BUILD_SHARED_LIBS=ON .. \
+    && make -j$(nproc) \
+    && make install \
+    && cd /tmp \
+    && rm -rf yaml-cpp*
+
+# 3. Set Environment Variable
+# CMake usually installs to /usr/local/lib. We need to tell the OS to look there.
+# ENV LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
+  ENV LD_LIBRARY_PATH=/usr/local/lib
+
+# 4. Setup working directory for the user
+WORKDIR /root/cmake-exercise
+
+# Default command (optional, but good for interactive mode)
+CMD ["bash"]

main.cpp

@@ -1,39 +1,39 @@
-//#include "fem/fem.hpp"
-//#include "flatset/flatset.hpp"
-//#include "filesystem/filesystem.hpp"
-//#include "yamlParser/yamlParser.hpp"
+#include "fem/fem.hpp"
+#include "flatset/flatset.hpp"
+#include "filesystem/filesystem.hpp"
+#include "yamlParser/yamlParser.hpp"
 #include <iostream>
 
 int main(int argc, char *argv[])
 {
   std::cout << "Let's fight with CMake, Docker, and some dependencies!" << std::endl << std::endl;
 
-  //std::cout << "Solve Poisson problem with FEM using deal.II" << std::endl;
-  //Fem fem;
-  //fem.run();
-  //std::cout << std::endl;
+  std::cout << "Solve Poisson problem with FEM using deal.II" << std::endl;
+  Fem fem;
+  fem.run();
+  std::cout << std::endl;
 
-  //std::cout << "Modify a flat set using boost container" << std::endl;
-  //modifyAndPrintSets();
-  //std::cout << std::endl;
+  std::cout << "Modify a flat set using boost container" << std::endl;
+  modifyAndPrintSets();
+  std::cout << std::endl;
 
-  //std::cout << "Inspect the current directory using boost filesystem" << std::endl;
-  //inspectDirectory();
-  //std::cout << std::endl;
+  std::cout << "Inspect the current directory using boost filesystem" << std::endl;
+  inspectDirectory();
+  std::cout << std::endl;
 
 
-  //if ( argc == 2 )
-  //{
-  //  const std::string yamlFile( argv[1] );
-  //  std::cout << "Parse some yaml file with yaml-cpp" << std::endl;
-  //  std::cout << "  " << yamlFile << std::endl;
-  //  parseConfig( yamlFile );
-  //}
-  //else
-  //{
-  //  std::cout << "To parse a yaml file please specify file on command line" << std::endl;
-  //  std::cout << "  ./main YAMLFILE" << std::endl;
-  //}
+  if ( argc == 2 )
+  {
+   const std::string yamlFile( argv[1] );
+   std::cout << "Parse some yaml file with yaml-cpp" << std::endl;
+   std::cout << "  " << yamlFile << std::endl;
+   parseConfig( yamlFile );
+  }
+  else
+  {
+   std::cout << "To parse a yaml file please specify file on command line" << std::endl;
+   std::cout << "  ./main YAMLFILE" << std::endl;
+  }
 
   return 0;
 }