new: implement the --insecure option for mp-build and mp-pool

mp-build/scripts/mp-build.sh

@@ -42,7 +42,11 @@ get_fn_url() {
 get_file() {
   if [[ "${1}" == "https://"* || "${1}" == "http://"* || "${1}" == "ftp://"* ]]
   then
-    curl "${1}" --progress-bar -OL
+    if [ $OPT_INSECURE -eq 1 ]; then
+      curl "${1}" --insecure --progress-bar -OL
+    else
+      curl "${1}" --progress-bar -OL
+    fi
     return $?
   elif [ -f "${pkgpath}/${1}" ]; then
     cp "${pkgpath}/${1}" .
@@ -89,6 +93,7 @@ help_cmd() {
   echo_color "   $BOLD--no-depend$RESET:  don't check depends"
   echo_color "   $BOLD--no-stdout$RESET:  disable stdout for PACKAGE() function"
   echo_color "   $BOLD--no-cache$RESET:   don't check cache"
+  echo_color "   $BOLD--insecure$RESET:   allow insecure curl downloads"
   echo_color "   $BOLD--no-opts$RESET:    don't show/list options"
   echo_color "   $BOLD--cores$RESET:      how many cores to use for the build"
   echo_color "   $BOLD--out$RESET:        directory for the output archive"
@@ -154,6 +159,7 @@ check_depends() {
 OPT_NO_DEPEND=0     # checking depends is ENABLED
 OPT_NO_STDOUT=0     # PACKAGE() function output is ENABLED
 OPT_NO_CACHE=0      # cache is ENABLED
+OPT_INSECURE=0      # insecure curl downloads are DISABLED
 OPT_NO_OPTS=0       # showing/listing options is ENABLED
 OPT_CORES=$(nproc)  # use ALL CPU cores
 OPT_OUT="DEFAULT"   # use the package dist directory for output
@@ -171,6 +177,8 @@ for arg in "$@"; do
       OPT_NO_STDOUT=1 ;;
     "--no-cache")
       OPT_NO_CACHE=1 ;;
+    "--insecure")
+      OPT_INSECURE=1 ;;
     "--no-opts")
       OPT_NO_OPTS=1 ;;
     "--cores"*)
@@ -223,6 +231,7 @@ if [ $OPT_NO_OPTS -eq 0 ]; then
   print   " $BOLD NO_DEPEND  = $(itoyn $OPT_NO_DEPEND)"
   print   " $BOLD NO_SDTOUT  = $(itoyn $OPT_NO_STDOUT)"
   print   " $BOLD NO_CACHE   = $(itoyn $OPT_NO_CACHE)"
+  print   " $BOLD INSECURE   = $(itoyn $OPT_INSECURE)"
   print   " $BOLD NO_OPTS    = $(itoyn $OPT_NO_OPTS)"
   print   " $BOLD CORES      = ${OPT_CORES}"
   print   " $BOLD OUT        = ${OPT_OUT}"