Support updating submodules to main branch

main is the new master ... even better would be a
possibility to specify the branch or tag. Maybe with
tag:<SOMTHING>, but then the next question arises
to do this per submodule ...

TarSCM/cli.py

@@ -127,12 +127,13 @@ def parse_args(self, options):
         parser.add_argument('--subdir', default='',
                             help='Package just a subdirectory of the sources')
         parser.add_argument('--submodules',
-                            choices=['enable', 'master', 'disable'],
+                            choices=['enable', 'master', 'main', 'disable'],
                             default='enable',
                             help='Whether or not to include git submodules '
                                  'from SCM commit log since a given parent '
                                  'revision (see changesrevision). Use '
-                                 '\'master\' to fetch the latest master.')
+                                 '\'master\' or \'main\' to fetch the latest'
+                                 'development revision.')
         parser.add_argument('--lfs',
                             choices=['enable', 'disable'],
                             default='disable',

TarSCM/scm/git.py

@@ -201,7 +201,8 @@ def fetch_submodules(self):
                                        '--recursive'],
                 cwd=self.clone_dir
             )
-        elif 'submodules' in argsd and argsd['submodules'] == 'master':
+        elif 'submodules' in argsd and
+             argsd['submodules'] in ['main', 'master']:
             self.helpers.safe_run(
                 self._get_scm_cmd() + ['submodule', 'update', '--init',
                                        '--recursive', '--remote'],

appimage.service

@@ -2,9 +2,10 @@
   <summary>handle sources specified in appimage.yml</summary>
   <description>This service needs to be executed to download sources according to appimage.yml file</description>
   <parameter name="submodules">
-    <description>Specify whether to include git submodules.  Default is 'enable'.</description>
+    <description>Specify whether to include git submodules. Default is 'enable'. main or master is override the specified commit with master or main branch.</description>
     <allowedvalue>enable</allowedvalue>
     <allowedvalue>master</allowedvalue>
+    <allowedvalue>main</allowedvalue>
     <allowedvalue>disable</allowedvalue>
   </parameter>
   <parameter name="lfs">

snapcraft.service

@@ -2,9 +2,10 @@
   <summary>handle sources specified in snapcraft.yaml</summary>
   <description>This service needs to be executed to download sources according to snapcraft.yaml file. It also patches the snapcraft tile to use local sources during build.</description>
   <parameter name="submodules">
-    <description>Specify whether to include git submodules.  Default is 'enable'.</description>
+    <description>Specify whether to include git submodules. Default is 'enable'. main or master is override the specified commit with master or main branch.</description>
     <allowedvalue>enable</allowedvalue>
     <allowedvalue>master</allowedvalue>
+    <allowedvalue>main</allowedvalue>
     <allowedvalue>disable</allowedvalue>
   </parameter>
   <parameter name="lfs">

tar_scm.service.in

@@ -172,9 +172,10 @@ which get maintained in the SCM. Can be used multiple times.</description>
     <description>Obsolete parameter which will be ignored.</description>
   </parameter>
   <parameter name="submodules">
-    <description>Specify whether to include git submodules.  Default is 'enable'.</description>
+    <description>Specify whether to include git submodules. Default is 'enable'. main or master is override the specified commit with master or main branch.</description>
     <allowedvalue>enable</allowedvalue>
     <allowedvalue>master</allowedvalue>
+    <allowedvalue>main</allowedvalue>
     <allowedvalue>disable</allowedvalue>
   </parameter>
 ===OBS_ONLY