claptrap 0.3.0

Bring the power of Clap to shell scripts.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

#!/usr/bin/env bash

set -euo pipefail

if ! command -v claptrap &> /dev/null; then
    echo "claptrap command not found. Please install it first, see https://claptrap.sh for instructions."
    exit 1
fi

eval "$(claptrap --spec {{spec}} -- "$@")"

{% macro dump_arg(arg) -%}
{% if arg.multiple %}
for i in "${{ '{!' }}{{ arg.name }}[@]{{ '}' }}"; do
  echo "{{ arg.name }}[$i]: ${{ '{' }}{{ arg.name }}[$i]{{ '}' }}"
done
{% else %}
echo "{{ arg.name }}: ${{ '{' }}{{ arg.name }}{{ '}' }}"
{% endif %}
{% endmacro -%}

{% if values.subcommands|length == 0 %}
{% for arg in values.args %}
if [ -n "{{ '${' ~ arg.name ~ '+x}' }}" ]; then
{{ dump_arg(arg)|indent(2, true) }}
fi
{% endfor %}
{% else %}
if [ -z "${claptrap__subcommand+x}" ]; then
  {% if values.args|length > 0 %}
  {% for arg in values.args %}
  if [ -n "{{ '${' ~ arg.name ~ '+x}' }}" ]; then
{{ dump_arg(arg)|indent(4, true) }}
  fi
  {% endfor %}
  {% else %}
  :
  {% endif %}
else
  echo "claptrap__subcommand: ${claptrap__subcommand}"
  case "${claptrap__subcommand}" in
    {% for sub in values.subcommands %}
    "{{ sub.name }}")
      {% for arg in sub.args %}
      if [ -n "{{ '${' ~ arg.name ~ '+x}' }}" ]; then
{{ dump_arg(arg)|indent(8, true) }}
      fi
      {% endfor %}
      ;;
    {% endfor %}
  esac
fi
{% endif %}