Follow CLI best practice for projectormake

[zwetan]

• from package C.unistd, use getopt() and/or getopt_long()

• use command-line standard arguments

  • -h / --help current tool help
  • -v / --version current tool version
  • -i / --info current tool informations
    • show the runtime version
    • show other libraries version
    • show license, credits, etc.
    • show many urls (download, issues, etc.)
  • -V / --verbose enable verbose output
  • etc.

• always exit with 0 for success, or 1 for failure

  • more exit status code can be supported, see documentation

• supports NO_COLOR env var see: https://no-color.org/

  All command-line software which outputs text with ANSI color added should check for the presence of a NO_COLOR environment variable that, when present (regardless of its value), prevents the addition of ANSI color.

• supports NO_EMOJI env var same as NO_COLOR but for preventing the use of emoji chars for example: use @ instead of 🌀

• support configuration settings and precedence of options order of loading should always be

  1. program defaults for ex: the App.config property
  2. Global configuration file this is a system-wide shared by all users config file
  3. Local configuration file this is per user config file that the program only load it if it exists
  4. Environment variables a. user env vars b. system env vars
  5. Command line parameters