Add type to base product for layered releases

Default value is "ga", can be overwritten by `base_product_type` config
option.

Fixes: #305
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

doc/configuration.rst

@@ -98,6 +98,10 @@ Options
 **base_product_version**
     (*str*) -- base product **major** version
 
+**base_product_type** = "ga"
+    (*str*) -- base product type, "ga", "updates" etc., for full list see
+    documentation of *productmd*.
+
 
 Example
 -------

pungi/compose.py

@@ -52,6 +52,7 @@ def get_compose_dir(topdir, conf, compose_type="production", compose_date=None,
         ci.base_product.name = conf["base_product_name"]
         ci.base_product.short = conf["base_product_short"]
         ci.base_product.version = conf["base_product_version"]
+        ci.base_product.type = conf.get("base_product_type", "ga").lower()
 
     ci.compose.label = compose_label
     ci.compose.type = compose_type

pungi/metadata.py

@@ -84,6 +84,7 @@ def compose_to_composeinfo(compose):
         ci.base_product.name = compose.conf["base_product_name"]
         ci.base_product.version = compose.conf["base_product_version"]
         ci.base_product.short = compose.conf["base_product_short"]
+        ci.base_product.type = compose.conf.get("base_product_type", "ga").lower()
 
     def dump_variant(variant, parent=None):
         var = productmd.composeinfo.Variant(ci)