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#!/usr/bin/env bash
# Module: download
# Description: Descarga ficheros remotos con soporte para reintentos, proxy y reanudación
# Author: Luis GuLo
# Version: 1.1.0
# Dependencies: wget o curl, sudo (si become=true)
download_task() {
local host="$1"; shift
declare -A args
for arg in "$@"; do key="${arg%%=*}"; value="${arg#*=}"; args["$key"]="$value"; done
local url="${args[url]}"
local dest="${args[dest]:-$(basename "$url")}"
local proxy="${args[proxy]:-}"
local continue="${args[continue]:-true}"
local become="${args[become]}"
local prefix=""
[ "$become" = "true" ] && prefix="sudo"
# 🌐 Cargar traducciones
local lang="${shflow_vars[language]:-es}"
local trfile="$(dirname "${BASH_SOURCE[0]}")/download.tr.${lang}"
declare -A tr
if [[ -f "$trfile" ]]; then while IFS='=' read -r k v; do tr["$k"]="$v"; done < "$trfile"; fi
if [[ -z "$url" ]]; then
echo "${tr[missing_url]:-❌ [download] Falta el parámetro obligatorio 'url'}"
return 1
fi
local cmd=""
if command -v wget &>/dev/null; then
echo "${tr[using_wget]:-📦 [download] Usando wget}"
cmd="$prefix wget \"$url\" -O \"$dest\""
[[ "$continue" == "true" ]] && cmd="$cmd -c"
[[ -n "$proxy" ]] && cmd="$cmd -e use_proxy=yes -e http_proxy=\"$proxy\""
elif command -v curl &>/dev/null; then
echo "${tr[using_curl]:-📦 [download] Usando curl}"
cmd="$prefix curl -L \"$url\" -o \"$dest\""
[[ "$continue" == "true" ]] && cmd="$cmd -C -"
[[ -n "$proxy" ]] && cmd="$cmd --proxy \"$proxy\""
else
echo "${tr[missing_tool]:-❌ [download] Ni wget ni curl están disponibles}"
return 1
fi
echo "$(render_msg "${tr[start]}" "url=$url" "dest=$dest")"
eval "$cmd" && echo "$(render_msg "${tr[done]}" "dest=$dest")"
}
check_dependencies_download() {
local lang="${shflow_vars[language]:-es}"
local trfile="$(dirname "${BASH_SOURCE[0]}")/download.tr.${lang}"
declare -A tr
if [[ -f "$trfile" ]]; then while IFS='=' read -r k v; do tr["$k"]="$v"; done < "$trfile"; fi
if ! command -v wget &>/dev/null && ! command -v curl &>/dev/null; then
echo "${tr[missing_tool]:-❌ [download] Se requiere 'wget' o 'curl'}"
return 1
fi
echo "${tr[deps_ok]:-✅ [download] Herramienta de descarga disponible}"
return 0
}
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