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1 change: 1 addition & 0 deletions .gitignore
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build/
40 changes: 40 additions & 0 deletions CMakeLists.txt
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cmake_minimum_required(VERSION 3.14)

project(cmake-exercise)


# Add dependencies like described in the exercise
find_package(deal.II REQUIRED)
find_package(yaml-cpp REQUIRED)
find_package(Boost REQUIRED COMPONENTS filesystem system)

# Add executables, with source files in subdirs
add_executable(
main
main.cpp
flatset/flatset.cpp
filesystem/filesystem.cpp
fem/fem.cpp
yamlParser/yamlParser.cpp
)

# Link the files. When linking like this no extra path is necessary when including in source code
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
)

# Link libraries
target_link_libraries(
main
Boost::filesystem
yaml-cpp
)

# Setup Deal.II
DEAL_II_SETUP_TARGET(main)
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FYI, in CMake, uppercase and lowercase are equivalent.


40 changes: 40 additions & 0 deletions Dockerfile
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FROM ubuntu:24.04

ENV DEBIAN_FRONTEND=noninteractive
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# install necessary packages, this step can take a while
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential \
cmake \
git \
wget \
unzip \
vim \
libeigen3-dev \
libboost-all-dev \
libgmp-dev \
libmpfr-dev \
python3 \
python3-pip \
libdeal.ii-dev \
&& rm -rf /var/lib/apt/lists/*

# install yaml-cpp from GitHub (v.0.6.3)
WORKDIR /tmp
RUN wget -q https://github.com/jbeder/yaml-cpp/archive/refs/tags/yaml-cpp-0.6.3.zip -O yaml-cpp.zip \
&& unzip yaml-cpp.zip \
&& mkdir -p yaml-cpp-yaml-cpp-0.6.3/build \
&& cd yaml-cpp-yaml-cpp-0.6.3/build \
&& cmake -DYAML_BUILD_SHARED_LIBS=on ../ \
&& make -j"$(nproc)" \
&& make install \
&& cd /tmp \
&& rm -rf yaml-cpp-0.6.3.zip yaml-cpp-yaml-cpp-0.6.3

ENV LD_LIBRARY_PATH="/usr/local/lib:${LD_LIBRARY_PATH}"
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FYI, LD_LIBRARY_PATH at the right-hand side is not defined at this point.


# Setup workdir to mount, to mount files
WORKDIR /opt/cmake-exercise
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I would expect this WORKDIR to always exist and have files. It currently depends on the user-defined mount.


CMD ["/bin/bash"]
61 changes: 61 additions & 0 deletions README.md
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# Let's Fight With CMake, Docker, and Some Dependencies

Repository for the [CMake exercise](https://github.com/Simulation-Software-Engineering/Lecture-Material/blob/main/03_building_and_packaging/cmake_exercise.md).

# Build Docker container and run

Build the Docker container:

```bash
docker build -t cmake-exercise:local
```

*Building the `Dockerfile` could take a while, because many dependencies have to be installed. At my machine it took around 20-30min*

Start the container in interactive mode and mount the current directory:

```bash
docker run -it -v ./:/opt/cmake-exercise cmake-exercise:local
```

Clean up the `./build` directory (this is recommended but may not be required):

```bash
rm -rf build/
```

Run the `./build_and_run.sh`, to test if everything works:
```bash
./build_and_run.sh
```
this should result in a simular output (the following is a bit shortend):
```bash
...
[ 16%] Building CXX object CMakeFiles/main.dir/main.cpp.o
[ 33%] Building CXX object CMakeFiles/main.dir/flatset/flatset.cpp.o
[ 50%] Building CXX object CMakeFiles/main.dir/filesystem/filesystem.cpp.o
[ 66%] Building CXX object CMakeFiles/main.dir/fem/fem.cpp.o
[ 83%] Building CXX object CMakeFiles/main.dir/yamlParser/yamlParser.cpp.o
[100%] Linking CXX executable main
[100%] Built target main
Let's fight with CMake, Docker, and some dependencies!

Solve Poisson problem with FEM using deal.II
FEM results available in `solution.vtk`. Try visualizing with Paraview.

Modify a flat set using boost container
Elements in s1: 1 2 3 4

Inspect the current directory using boost filesystem
"." is a directory containing:
"CMakeCache.txt"
"CMakeFiles"
"Makefile"
"cmake_install.cmake"
"main"
"solution.vtk"

Parse some yaml file with yaml-cpp
../yamlParser/config.yml
Version: 1.2.3
root@e22431c56c9b:/opt/cmake-exercise# exit
exit
[silas@manacor cmake-exercise]$ ls
```
Binary file added main
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I would not add generated binaries to a git repository. In the same way you have build/ in the .gitignore, you could also add this.

Binary file not shown.
52 changes: 26 additions & 26 deletions main.cpp
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//#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;
}