delay get_rootfs_tgz_url

Author: zaoqi

install.alpine.sh

@@ -15,6 +15,6 @@ get_rootfs_tgz_url(){
     echo "http://dl-cdn.alpinelinux.org/alpine/edge/releases/armhf/$(get_rootfs_tgz_filename)"
 }
 
-install_tgz_rootfs "$(get_rootfs_tgz_url)"
+install_tgz_rootfs "get_rootfs_tgz_url"
 
 quit

install.ubuntu.1904.sh

@@ -4,6 +4,10 @@
 
 [ -f "$ROOTFS_IMG" ] && fail "rootfs exist.Please remove it and continue."
 
-install_tgz_rootfs "http://mirrors.ustc.edu.cn/ubuntu-cdimage/ubuntu-base/releases/19.04/release/ubuntu-base-19.04-base-armhf.tar.gz"
+get_rootfs_tgz_url(){
+    echo "http://mirrors.ustc.edu.cn/ubuntu-cdimage/ubuntu-base/releases/19.04/release/ubuntu-base-19.04-base-armhf.tar.gz"
+}
+
+install_tgz_rootfs "get_rootfs_tgz_url"
 
 quit

lib.sh

@@ -133,12 +133,12 @@ resize_rootfs_interactive(){
 }
 
 install_tgz_rootfs(){
-    local ROOTFS_TGZ_URL="$1"
     [ -f "$ROOTFS_LOCK" ] && fail "rootfs mounted."
     rm -fr "$ROOTFS_IMG" || fail
     cp rootfs."$ROOTFS_TYPE".base "$ROOTFS_IMG" || fail
     resize_rootfs_interactive
     mount_rootfs_base
+    local ROOTFS_TGZ_URL="$("$1")" # Delay
     curl "$ROOTFS_TGZ_URL" | tar -xvz -C "$ROOTFS_DIR" || fail "download and extract rootfs: failed."
     umount_rootfs_all
 }