!config
# Arara, the cool TeX automation tool
# Copyright (c) 2020, Island of TeX 
# All rights reserved.
#
# This rule is part of arara.
identifier: frontespizio
name: Frontespizio
authors:
- Francesco Endrici
- Enrico Gregorio
- Island of TeX
commands:
- name: The engine
  command: >
    @{
        return getCommand(engine, interaction, shell, options, reference)
    }
- name: The frontispiece
  command: >
    @{
        base = getBasename(reference).concat('-frn');
        return getCommand(engine, interaction, shell, base);
    }
- name: The DVIPS program
  command: >
    @{
        base = getBasename(reference).concat('-frn');
        eps = base.concat('.eps');
        return isTrue(engine == 'latex', getCommand('dvips', '-o',
               eps, base), '');
    }
- name: The engine
  command: >
    @{
        return getCommand(engine, interaction, shell, options, reference);
    }
arguments:
- identifier: engine
  flag: >
    @{
        if ([ 'pdflatex', 'latex', 'xelatex',
              'lualatex' ].contains(parameters.engine)) {
            return parameters.engine;
        }
        else {
            throwError('The provided engine is not valid');
        }
    }
  default: pdflatex
- identifier: shell
  flag: >
    @{
        isTrue(parameters.shell, '--shell-escape', '--no-shell-escape')
    }
- identifier: options
  flag: >
    @{
        if (isList(parameters.options)) {
            return parameters.options;
        }
        else {
            throwError('I was expecting a list of options.');
        }
    }
- identifier: interaction
  flag: >
    @{
        if ([ 'batchmode', 'nonstopmode', 'scrollmode',
              'errorstopmode' ].contains(parameters.interaction)) {
            return '--interaction='.concat(parameters.interaction);
        }
        else {
            throwError('The provided interaction value is not valid.');
        }
    }
