Merge pull request #56 from kiorky/import_image_tarball

support tarball imports

README.md

@@ -46,6 +46,8 @@ Identical to the `docker import` command. If `src` is a string or unicode
 string, it will be treated as a URL to fetch the image from. To import an image
 from the local machine, `src` needs to be a file-like object or bytes
 collection.
+To import from a tarball use your absolute path to your tarball.
+To load arbitrary data as tarball use whatever you want as src and your tarball content in data.
 
 * `c.info()`  
 Identical to the `docker info` command.

docker/client.py

@@ -275,15 +275,28 @@ class Client(requests.Session):
             return [x['Id'] for x in res]
         return res
 
-    def import_image(self, src, repository=None, tag=None):
+    def import_image(self, src, data=None, repository=None, tag=None):
+        '''
+        To import from a local tarball, use the absolute path to the file
+        '''
         u = self._url("/images/create")
         params = {
             'repo': repository,
             'tag': tag
         }
+        try:
+            # XXX: this is ways not optimal but the only way
+            # for now to import tarballs through the API
+            fic = open(src)
+            data = fic.read()
+            fic.close()
+            src = "-"
+        except IOError:
+            # file does not exists or not a file (URL)
+            data = None
         if isinstance(src, six.string_types):
             params['fromSrc'] = src
-            return self._result(self.post(u, None, params=params))
+            return self._result(self.post(u, data, params=params))
 
         return self._result(self.post(u, src, params=params))