Add options to specify user and mail in changelog entry

When modifying a spec file, rdopkg takes user name and mail
from gitconfig. There are cases where we want to define other
values, for using it in unattended mode inside scripts.

Change-Id: I1415663ff4d14cec1cda8d9ad23ca117af45377d

Author: amoralej

rdopkg/actions/distgit/__init__.py

@@ -79,6 +79,10 @@
                Arg('commit_header_file', shortcut='-H', metavar='FILE',
                    help="start commit message with FILE contents, "
                         "- for stdin"),
+               Arg('changelog_user', shortcut='-u', default=None,
+                   help="User to be used in new changelog entry"),
+               Arg('changelog_email', shortcut='-e', default=None,
+                   help="email address to be used in new changelog entry"),
            ],
            steps=[
                Action('get_package_env'),
@@ -123,6 +127,10 @@
                Arg('commit_header_file', shortcut='-H', metavar='FILE',
                    help="start commit message with FILE contents, "
                         "- for stdin"),
+               Arg('changelog_user', shortcut='-u', default=None,
+                   help="User to be used in new changelog entry"),
+               Arg('changelog_email', shortcut='-e', default=None,
+                   help="email address to be used in new changelog entry"),
            ],
            steps=[
                Action('get_package_env'),

rdopkg/actions/distgit/actions.py

@@ -619,7 +619,8 @@ def get_upstream_patches(version, local_patches_branch,
 def update_spec(branch=None, changes=None,
                 new_rpm_version=None, new_release=None,
                 new_milestone=None, new_patches_base=None,
-                no_bump=False):
+                no_bump=False, changelog_user=None,
+                changelog_email=None):
 
     if no_bump:
         return
@@ -649,7 +650,9 @@ def update_spec(branch=None, changes=None,
         changed = spec.set_patches_base_version(new_patches_base)
         if not changed:
             log.info("Macro detected in patches_base - not touching that.")
-    spec.new_changelog_entry(user=guess.user(), email=guess.email(),
+    user = (changelog_user or guess.user())
+    email = (changelog_email or guess.email())
+    spec.new_changelog_entry(user=user, email=email,
                              changes=changes)
     spec.save()