test/init.sh: handle broken dir symlinks

mmgen_node_tools/data/version

@@ -1 +1 @@
-3.2.dev7
+3.2.dev8

test/cmdtest_py_d/cfg.py

@@ -12,7 +12,7 @@
 test.cmdtest_py_d.cfg: configuration data for cmdtest.py
 """
 
-import os
+cmd_groups_altcoin = []
 
 cmd_groups_dfl = {
 	'main':        ('CmdTestMain',{}),
@@ -29,4 +29,5 @@ cfgs = {
 	'3':  {}, # main
 }
 
-def fixup_cfgs(): pass
+def fixup_cfgs():
+	pass

test/init.sh

@@ -47,9 +47,15 @@ build_mmgen_extmod() {
 create_dir_links() {
 	for link_name in 'mmgen' 'scripts'; do
 		target="$wallet_repo/$link_name"
-		if [ -e $link_name ]; then
-			[ $(realpath --relative-to=. $link_name) == $target ] || die "'$link_name' does not point to '$target'"
-		else
+		if [ -L $link_name ]; then
+			[ "$(realpath --relative-to=. $link_name 2>/dev/null)" == $target ] || {
+				echo "Removing broken symlink '$link_name'"
+				rm $link_name
+			}
+		elif [ -e $link_name ]; then
+			die "'$link_name' is not a symbolic link. Please remove or relocate it and re-run this script"
+		fi
+		if [ ! -e $link_name ]; then
 			echo "Creating symlink: $link_name"
 			ln -s $target
 		fi