Add project_separator to config file

This allows for arbitrary string to be used as a project
separator instead of restricting oneself to : or directory
structure.

Fixes: #1024

osc/commandline.py

@@ -4704,6 +4704,8 @@ Please submit there instead, or use --nodevelproject to force direct submission.
             prj_dir = opts.output_dir if opts.output_dir else project
             if not opts.output_dir and conf.config['checkout_no_colon']:
                 prj_dir = prj_dir.replace(':', '/')
+            else:
+                prj_dir = prj_dir.replace(':', conf.config['project_separator'])
             if os.path.exists(prj_dir):
                 sys.exit('osc: project directory \'%s\' already exists' % prj_dir)
 

osc/conf.py

@@ -168,6 +168,8 @@ DEFAULTS = {'apiurl': 'https://api.opensuse.org',
             'getpac_default_project': 'openSUSE:Factory',
             # alternate filesystem layout: have multiple subdirs, where colons were.
             'checkout_no_colon': '0',
+            # project separator
+            'project_separator': ':',
             # change filesystem layout: avoid checkout from within a proj or package dir.
             'checkout_rooted': '0',
             # local files to ignore with status, addremove, ....
@@ -338,6 +340,9 @@ apiurl = %(apiurl)s
 # alternate filesystem layout: have multiple subdirs, where colons were.
 #checkout_no_colon = %(checkout_no_colon)s
 
+# instead of colons, use the specified as separator
+#project_separator = %(project_separator)s
+
 # change filesystem layout: avoid checkout within a project or package dir.
 #checkout_rooted = %(checkout_rooted)s
 

osc/core.py

@@ -5136,6 +5136,8 @@ def checkout_package(apiurl, project, package,
         prj_dir = olddir
     elif conf.config['checkout_no_colon']:
         prj_dir = prj_dir.replace(':', '/')
+    else:
+        prj_dir = prj_dir.replace(':', conf.config['project_separator'])
 
     root_dots = '.'
     if conf.config['checkout_rooted']: