Added option to list the installed APIs

1 files changed, 16 insertions, 7 deletions

diff --git a/coinfetch b/coinfetch
index ec9b7fa..9c1c562 100755
--- a/coinfetch
+++ b/coinfetch
@@ -30,15 +30,30 @@ There is NO WARRANTY, to the extent permitted by law.
 
 Written by {}'''.format(__title__, __version__, __author__)
 
+def list_sorted_apis():
+    tickers = get_registered_tickers()
+    tickers.sort()
+    for api, desc in tickers:
+        print(api + '\t- ' + desc)
+
+class ListAction(Action):
+    def __call__(self, parser, values, namespace, option_string):
+        list_sorted_apis()
+        exit(0)
+
 class VersionAction(Action):
     def __call__(self, parser, values, namespace, option_string):
         print(__version_info__)
         exit(0)
 
+load_default_plugins()
+
 cli = ArgumentParser(__title__)
 
 cli.add_argument('-a', '--api', default='btce', help='uses an API by name')
 cli.add_argument('-k', '--kind', help='specifies which kind of rate to get')
+cli.add_argument('-l', '--list-apis', action=ListAction,
+                 help='list available APIs and exit', nargs=0)
 cli.add_argument('-v', '--version', action=VersionAction,
                  help='show version information and exit', nargs=0)
 
@@ -49,18 +64,12 @@ cli.add_argument('dest', help='currency to which to convert')
 
 args = cli.parse_args()
 
-load_default_plugins()
-
 try:
     print('%.8f' %get_ticker(args.api).get_rate(args.src, args.dest, args.amount))
 except KeyError:
     print('The API {} is not available. Currently installed APIs:'.format(args.api))
 
-    tickers = get_registered_tickers()
-    tickers.sort()
-    for api, desc in tickers:
-        print(api + '\t- ' + desc)
-
+    list_sorted_apis()
     exit(10)
 except ValueError:
     pair = '/'.join([args.src, args.dest])