cpmk 2.1.4

A simple C/C++ CLI Project Maker including CMake
Documentation 
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use std::{
    env::current_dir,
    fs::{create_dir, write},
};

use clap::Parser;

/// Struct that holds the projects information.
#[derive(Parser)]
#[command(name = "CPMK", version, about, author)]
pub struct Cpmk {
    /// The language of the new project
    #[clap(short, long)]
    language: String,

    /// The name of the new project
    #[clap(short, long)]
    project_name: String,
}

/// Setup the project
pub fn setup_project() {
    let cpmk = Cpmk::parse();
    if !has_valid_language(&cpmk) {
        println!("Language not supported, use \"c\", \"cc\" or \"cpp\"");
        return;
    }

    let mut project_path = current_dir()
        .expect("Directory should be available")
        .into_os_string()
        .into_string()
        .expect("Directory should be a string");
    project_path = project_path + "/" + &cpmk.project_name;

    create_directories(&project_path);
    create_files(&cpmk, &project_path);

    println!("Project {} created successfully.", &cpmk.project_name);
}

/// Checks if the given language is valid.
fn has_valid_language(cpmk: &Cpmk) -> bool {
    const LANGUAGES: [&str; 3] = ["c", "cc", "cpp"];
    LANGUAGES.contains(&cpmk.language.as_str())
}

/// Create the directories for the project
fn create_directories(project_path: &str) {
    create_dir(&project_path).expect("Directory should be created");

    let src_path = project_path.to_owned() + "/src";
    create_dir(src_path).expect("Directory should be created");
}

/// Create the files for the project
fn create_files(cpmk: &Cpmk, project_path: &str) {
    let main_file = project_path.to_owned() + "/src/main." + &cpmk.language;
    let cmake_file = project_path.to_owned() + "/CMakeLists.txt";
    let cmake_src_file = project_path.to_owned() + "/src/CMakeLists.txt";

    let main_file_content: &str;
    let cmake_extra: &str;
    if &cpmk.language == "c" {
        main_file_content = "#include <stdio.h>

int main(void) {
  printf(\"Hello World!\\n\");

  return 0;
}";

        cmake_extra = "set(CMAKE_C_STANDARD 17)
set(CMAKE_C_STANDARD_REQUIRED True)
set(CMAKE_C_FLAGS \"${CMAKE_C_FLAGS} -Wall -Wextra -Wpedantic\")\n\n"
    } else {
        main_file_content = "#include <iostream>

int main(void) {
  std::cout << \"Hello World!\\n\";

  return 0;
}";
        cmake_extra = "";
    };

    let cmake_file_content = format!(
        "cmake_minimum_required(VERSION 3.10)

project({})

{}set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_CXX_FLAGS \"${{CMAKE_CXX_FLAGS}} -Wall -Wextra -Wpedantic\")

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${{CMAKE_BINARY_DIR}})

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

add_subdirectory(src)\n",
        cpmk.project_name, cmake_extra
    );

    let cmake_src_content = format!(
        "cmake_minimum_required(VERSION 3.10)

add_executable(
  {}
  main.{}
)\n",
        &cpmk.project_name, &cpmk.language
    );

    write(main_file, main_file_content).expect("File should be created");
    write(cmake_file, cmake_file_content).expect("File should be created");
    write(cmake_src_file, cmake_src_content).expect("File should be created");
}