Split MC container creation into function

installJRMC

@@ -418,20 +418,7 @@ get_latest_mc_version() {
   local cnt mc_version_source
 
   # Use generalized containerized package manager to determine latest MC version
-  if install_package --silent buildah && 
-  cnt=$(sudo buildah from --quiet alpine:edge 2>/dev/null) &&
-  sudo buildah run "$cnt" -- sh -c '
-    apk add --no-cache apt curl gnupg &>/dev/null
-    curl -fsSL https://dist.jriver.com/mediacenter@jriver.com.gpg.key | gpg --dearmor -o /usr/share/keyrings/jriver-com-archive-keyring.gpg
-    cat <<-EOF > /etc/apt/sources.list.d/jriver.sources
-			Types: deb
-			URIs: https://dist.jriver.com/latest/mediacenter/
-			Signed-By: /usr/share/keyrings/jriver-com-archive-keyring.gpg
-			Suites: '"$MC_REPO"'
-			Components: main
-			Architectures: '"$MC_ARCH"'
-		EOF
-    apt-get update --allow-insecure-repositories &>/dev/null' &&
+  if cnt=$(apt_mc_container) &&
   MC_VERSION=$(sudo buildah run "$cnt" -- apt-cache policy "mediacenter${USER_MC_MVERSION:-${MC_VERSION%%.*}}" | grep Candidate | awk '{print $2}' | sort -V | tail -n1) &&
   [[ $MC_VERSION =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
     mc_version_source="containerized package manager"
@@ -799,7 +786,7 @@ acquire_deb_new() {
     apt-get update --allow-insecure-repositories &>/dev/null
     cd /download
     apt-get download --allow-unauthenticated mediacenter'"$MC_MVERSION"'' &&
-  sudo buildah copy "$cnt" /download/MediaCenter-"$MC_VERSION"*.deb "$OUTPUT_DIR/SOURCES/" &&
+  sudo buildah copy "$cnt" "/download/*.deb" "$OUTPUT_DIR/SOURCES/" &&
   sudo buildah rm "$cnt"
 
   # Return if the download was successful
@@ -1865,6 +1852,24 @@ download() {
   debug "${cmd[@]}" "$url"
   "${cmd[@]}" "$url"
 }
+apt_mc_container() {
+  debug "Running: ${FUNCNAME[0]}"
+  install_package --silent buildah && 
+  cnt=$(sudo buildah from --quiet alpine:edge 2>/dev/null) &&
+  sudo buildah run "$cnt" -- sh -c '
+    apk add --no-cache apt curl gnupg &>/dev/null
+    curl -fsSL https://dist.jriver.com/mediacenter@jriver.com.gpg.key | gpg --dearmor -o /usr/share/keyrings/jriver-com-archive-keyring.gpg &>/dev/null
+    cat <<-EOF > /etc/apt/sources.list.d/jriver.sources
+			Types: deb
+			URIs: https://dist.jriver.com/latest/mediacenter/
+			Signed-By: /usr/share/keyrings/jriver-com-archive-keyring.gpg
+			Suites: '"$MC_REPO"'
+			Components: main
+			Architectures: '"$MC_ARCH"'
+		EOF
+    apt-get update --allow-insecure-repositories &>/dev/null' &&
+  echo "$cnt"
+}
 
 # Roughly turn debugging on for pre-init
 # Reset and reparse in parse_input() with getopt