cpp_build.bash

#!/bin/bash

#Useful debugging tools
#-o prevents masking of pipeline errors
#-u variables control
#-e exit immediately on non-zero exit status 

set -euo pipefail

PROJECT_NAME="my_project"
INIT_GIT=false

command_exists() {
    command -v "$1" >/dev/null 2>&1
}

#Basic documentation
display_usage() {
    cat <<EOF
Usage: $0 [options]

Options:
    -n, --name <name>   Project name (default: my_project)
    -g, --git           Initialize git
    -h, --help          Displays this help message
EOF
    exit 0
}

error_exit() {
    echo "Error: $1" >&2
    exit 1
}

# Check for required commands(cmake, make, gcc, git etc.)
for cmd in cmake make git; do
    if ! command_exists "$cmd"; then
        error_exit "'$cmd' is required but not installed."
    fi
done

if [ $# -eq 0 ]; then
    display_usage
fi

while [ $# -gt 0 ]; do
    case "$1" in
        -n|--name)
            if [ -z "${2:-}" ]; then
                error_exit "Project name not specified."
            fi
            PROJECT_NAME="$2"
            shift 2
            ;;
        -g|--git)
            INIT_GIT=true
            shift
            ;;
        -h|--help)
            display_usage
            ;;
        *)
            echo "Unknown option $1"
            display_usage
            ;;
    esac
done

# Validate project name i.e no spaces
if [[ -z "$PROJECT_NAME" || "$PROJECT_NAME" =~ [[:space:]] ]]; then
    error_exit "Invalid project name: '$PROJECT_NAME'"
fi

echo -e "Creating project: \e[32$PROJECT_NAME"
mkdir -p "$PROJECT_NAME" || error_exit "Failed to create directory."


#Most basic CMake configuration, can be further completet if needed
cat >"$PROJECT_NAME/CMakeLists.txt" <<EOF
cmake_minimum_required(VERSION 3.28)
project(${PROJECT_NAME})

set(CMAKE_CXX_STANDARD 17)

add_executable(${PROJECT_NAME} main.cpp)
EOF

#My basic template, can be changed to whatever you like
cat >"$PROJECT_NAME/main.cpp" <<EOF
#include <iostream>
#include <vector>
#include <algorithm>

#define ll long long

using namespace std;

int main() {
    return 0;
}
EOF

#Gitignore and clang-format initialization
cat > "$PROJECT_NAME/.gitignore" <<EOF
build/
*.o
*.obj
*.exe
*.log
.env
EOF

cat > "$PROJECT_NAME/.clang-format" <<EOF
BasedOnStyle: Google
IndentWidth: 4
ColumnLimit: 100
EOF

mkdir -p "$PROJECT_NAME/builds"
cd "$PROJECT_NAME/builds"
cmake .. || error_exit "CMake configuration failed."
make || error_exit "Build failed."
cd ../..

#Git initialization if the option -g was specified
if [ "$INIT_GIT" = true ]; then
    cd "$PROJECT_NAME"
    git init -q
    git add .
    git commit -m "Initial commit"
    echo -e "\e[33mGit repository initialized"
    cd ..
fi

echo -e "\e[32mProject \e[37m'$PROJECT_NAME' \e[32mcreated successfully."