Create a new dotnet project and add some useful stuff

sharptemp.sh

#!/usr/bin/env bash

set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT

script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

usage() {
  cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p project_name [args ...]

Create a new dotnet console project in the /tmp/ directory and change into directory.

Available options:

-h, --help      Print this help and exit
-v, --verbose   Print script debug info
-f, --flag      Force project creation and overwrite existing projects
-p, --param     Project name
-n, --nocolor   Do not display color in output
EOF
  exit
}

cleanup() {
  trap - SIGINT SIGTERM ERR EXIT
  # script cleanup here
}

setup_colors() {
  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
    NOFORMAT='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
  else
    NOFORMAT='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
  fi
}

msg() {
  echo >&2 -e "${1-}"
}

die() {
  local msg=$1
  local code=${2-1} # default exit status 1
  msg "$msg"
  exit "$code"
}

parse_params() {
  # default values of variables set from params
  flag=0
  param=''

  while :; do
    case "${1-}" in
    -h | --help) usage ;;
    -v | --verbose) set -x ;;
    -n | --no-color) NO_COLOR=1 ;;
    -f | --flag) flag=1 ;; # example flag
    -p | --param) # example named parameter
      param="${2-}"
      shift
      ;;
    -?*) die "Unknown option: $1" ;;
    *) break ;;
    esac
    shift
  done

  args=("$@")

  # check required params
  [[ -z "${param-}" ]] && die "Missing required parameter: project name [-p]"

  return 0
}

create_run_script(){
  project_name=$1;
  printf "#!/bin/bash\n\ndotnet build ${project_name}.csproj\necho ''\necho ''\nbin/Debug/net5.0/${project_name} \$@\n" > "run.sh"
  chmod +x run.sh
}

create_env(){
  echo "Creating new temp project: [${param}]...";
  folderName=${param};

  pathToDir="/tmp/$folderName";
  if [[ -d $pathToDir ]]; then

    if [[ ${flag} == 1 ]]; then
      msg "${ORANGE}Force flag set. Overwriting old project...${NOFORMAT}"
      rm -r $pathToDir
    else
      msg "${RED}Project file exists. Specify -f flag to overwrite or choose a differnt project name.${NOFORMAT}";
      exit;
    fi
  fi

  mkdir $pathToDir;
  cd $pathToDir;
  printf "sharptemp Temporary Project File\r\nCreated At: $(date)" > ".sharptempproj";
  dotnet new console
  dotnet build --nologo ${param}.csproj
  create_run_script ${param}
  /bin/bash
  msg "${BLUE}Project environment closed.${NOFORMAT}"
  return 0
}

parse_params "$@"
setup_colors

# script logic here

msg "${BLUE}Read parameters:${NOFORMAT}"
msg "- flag: ${flag}"
msg "- param: ${param}"
msg "- arguments: ${args[*]-}"
echo ""

if [ ${param} ]; then
  create_env
fi