From 1bd15efef1dfe0fff29a448fb719b5dfc2a0e861 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lucio=20Andr=C3=A9s=20Illanes=20Albornoz?=
 <lucio@lucioillanes.de>
Date: Fri, 22 Jan 2021 14:19:49 +0000
Subject: Implements ${{DEFAULT,PKG,...}_MIRRORS}.

build.sh:build(): define and zero-initialise ${DEFAULT_MIRRORS}.
etc/README.md: updated.
midipix.env: adds ${DEFAULT_MIRRORS} (https://midipix.org/mirror/ https://midipix.lucioillanes.de/archives/).
subr.rtl/rtl_fetch.subr:rtl_fetch_url_wget(): receive and operate on target name and optional list of mirrors.
subr/pkg_fetch_download.subr: additionally pass ${PKG_NAME} and ${PKG_MIRRORS} to rtl_fetch_url_wget().
---
 subr.rtl/rtl_fetch.subr | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'subr.rtl')

diff --git a/subr.rtl/rtl_fetch.subr b/subr.rtl/rtl_fetch.subr
index d0ad54b0..64eac921 100644
--- a/subr.rtl/rtl_fetch.subr
+++ b/subr.rtl/rtl_fetch.subr
@@ -53,12 +53,16 @@ rtl_fetch_urls_git() {
 
 # N.B.	URLs ($1) may contain `?' or '&' characters.
 rtl_fetch_url_wget() {
-	local _urls="${1}" _sha256sum_src="${2}" _target_fname="${3}" _rc=0 _target_fname_full=""\
-		_url="" _urls_count=0;
+	local _urls="${1}" _sha256sum_src="${2}" _target_fname="${3}" _target_name="${4}" _mirrors="${5:-}"	\
+		_rc=0 _target_fname_full="" _url="" _url_base="" _urls_count=0 _urls_full="";
 	if [ "${ARG_FETCH_FORCE}" = "offline" ]; then
 		return 0;
-	else	_urls_count="$(rtl_llength "${_urls}")";
-		for _url in ${_urls}; do
+	else	_urls_full="${_urls}";
+		for _url_base in ${_mirrors}; do
+			_urls_full="$(rtl_lconcat "${_urls_full}" "${_url_base%/}/${_target_name}/${_target_fname}")";
+		done;
+		_urls_count="$(rtl_llength "${_urls_full}")";
+		for _url in ${_urls_full}; do
 			if [ -z "${_target_fname}" ]; then
 				_target_fname="$(rtl_basename "${_url}")";
 			fi;
-- 
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