Add support for top-level variant IDs with dashes.

This is for layered products that have a variant mapped
to multiple variants in a base product, for example:
 * Foo-Tools (id: FooTools, uid: Foo-Tools, name: Tools)
 * Bar-Tools (id: BarTools, uid: Bar-Tools, name: Tools)

Requires productmd >= 1.2.

Signed-off-by: Daniel Mach <dmach@redhat.com>

pungi/metadata.py

@@ -94,7 +94,8 @@ def compose_to_composeinfo(compose):
             return None
 
         # variant details
-        var.id = variant.id
+        # remove dashes from variant ID, rely on productmd verification
+        var.id = variant.id.replace("-", "")
         var.uid = variant.uid
         var.name = variant.name
         var.type = variant.type
@@ -230,7 +231,8 @@ def write_tree_info(compose, arch, variant, timestamp=None):
         var.name = variant.parent.name
         var.type = "variant"
     else:
-        var.id = variant.id
+        # remove dashes from variant ID, rely on productmd verification
+        var.id = variant.id.replace("-", "")
         var.uid = variant.uid
         var.name = variant.name
         var.type = variant.type

pungi/wrappers/variants.py

@@ -198,8 +198,6 @@ class VariantsXmlParser(object):
 class Variant(object):
     def __init__(self, id, name, type, arches, groups, environments=None,
                  buildinstallpackages=None, is_empty=False, parent=None):
-        if not id.isalnum():
-            raise ValueError("Variant ID must contain only alphanumeric characters: %s" % id)
 
         environments = environments or []
         buildinstallpackages = buildinstallpackages or []