default createrepo_checksum to sha256

Signed-off-by: Qixiang Wan <qwan@redhat.com>

doc/configuration.rst

@@ -358,8 +358,9 @@ Createrepo Settings
 Options
 -------
 
-**createrepo_checksum** [mandatory]
-    (*str*) -- specify checksum type for createrepo; expected values: sha256, sha
+**createrepo_checksum**
+    (*str*) -- specify checksum type for createrepo; expected values: sha256, sha.
+    Defaults to sha256.
 
 **createrepo_c** = True
     (*bool*) -- use createrepo_c (True) or legacy createrepo (False)
@@ -387,7 +388,7 @@ Example
 -------
 ::
 
-    createrepo_checksum = "sha256"
+    createrepo_checksum = "sha"
 
 
 Package Set Settings

pungi/checks.py

@@ -517,6 +517,7 @@ def _make_schema():
             },
             "createrepo_checksum": {
                 "type": "string",
+                "default": "sha256",
                 "enum": ["sha", "sha256"],
             },
             "createrepo_use_xz": {
@@ -965,7 +966,7 @@ def _make_schema():
 
         "required": ["release_name", "release_short", "release_version",
                      "release_is_layered",
-                     "variants_file", "sigkeys", "createrepo_checksum",
+                     "variants_file", "sigkeys",
                      "runroot", "pkgset_source",
                      "gather_source", "gather_method"],
         "additionalProperties": False,