change stash subcommands to require "--" prefix

jsvn

@@ -1233,12 +1233,7 @@ def revert_h(argv, svn, out, config):
                         break
     return RET_OK if did_something else RET_REEXEC
 
-def stash_save_h(argv, svn, out, config):
-    keep_wc = False
-    options, args = getopt.getopt(argv, 'k')
-    for opt, val in options:
-        if opt == '-k':
-            keep_wc = True
+def stash_save_h(args, svn, out, config, keep_wc):
     owd = os.getcwd()
     wc_dir = get_svn_wc_root(svn)
     os.chdir(wc_dir)
@@ -1380,12 +1375,7 @@ def stash_list_h(argv, svn, out, config):
         out.write('\n')
     return RET_OK
 
-def stash_pop_h(argv, svn, out, config):
-    keep = False
-    options, args = getopt.getopt(argv, 'k')
-    for opt, val in options:
-        if opt == '-k':
-            keep = True
+def stash_pop_h(args, svn, out, config, keep):
     owd = os.getcwd()
     wc_dir = get_svn_wc_root(svn)
     os.chdir(wc_dir)
@@ -1443,23 +1433,21 @@ def stash_drop_h(argv, svn, out, config):
 
 def stash_h(argv, svn, out, config):
     argv = argv[1:] # strip 'stash' command
-    action = 'save'
-    if len(argv) >= 1:
-        if not argv[0].startswith('-'):
-            action = argv[0]
-            argv = argv[1:]
-    # now argv only contains options/arguments to the stash subcommand itself
-    actions = {
-            'save': stash_save_h,
-            'list': stash_list_h,
-            'pop': stash_pop_h,
-            'show': stash_show_h,
-            'drop': stash_drop_h
-            }
-    if action in actions:
-        return actions[action](argv, svn, out, config)
-    sys.stderr.write('Unknown action "%s"\n' % action)
-    return RET_ERR
+    opts, args = getopt.getopt(argv, 'k',
+            ['list', 'pop', 'show', 'drop'])
+    keep = False
+    for opt, arg in opts:
+        if opt == '--list':
+            return stash_list_h(args, svn, out, config)
+        if opt == '--pop':
+            return stash_pop_h(args, svn, out, config, keep)
+        if opt == '--show':
+            return stash_show_h(args, svn, out, config)
+        if opt == '--drop':
+            return stash_drop_h(args, svn, out, config)
+        if opt == '-k':
+            keep = True
+    return stash_save_h(args, svn, out, config, keep)
 
 def root_h(argv, svn, out, config):
     out.write(get_svn_root_url(svn) + '\n')