From 657db330174e89c2a98637ef92fdfd1e29644caf Mon Sep 17 00:00:00 2001
From: yuvipanda <yuvipanda@gmail.com>
Date: Mon, 22 May 2017 22:16:30 -0700
Subject: [PATCH] Set a default image name if none is provided

It's kind of shitty but better than just erroring.
---
 repo2docker/app.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/repo2docker/app.py b/repo2docker/app.py
index 865bc505..2b417f32 100644
--- a/repo2docker/app.py
+++ b/repo2docker/app.py
@@ -6,6 +6,7 @@ import logging
 import uuid
 import shutil
 from pythonjsonlogger import jsonlogger
+import escapism
 
 
 from traitlets.config import Application, LoggingConfigurable
@@ -126,6 +127,12 @@ class Repo2Docker(Application):
         self.log.setLevel(logging.INFO)
         self.load_config_file(self.config_file)
 
+        if self.output_image_spec is None:
+            # Attempt to set a sane default!
+            # HACK: Provide something more descriptive?
+            self.output_image_spec = escapism.escape(self.repo).lower() + ':' + self.ref.lower()
+
+
     def run(self):
         # HACK: Try to just pull this and see if that works.
         # if it does, then just bail.