git.py: introduce Blob abstraction

Some blob representations (such as embedded images) require raw blob
content, however, the 'blob' view is unconditionally handed cooked
(utf8-encoded) content, thus representations which need raw content are
forced to reload the blob in raw form, which is ugly and expensive (due
to shelling out to git-cat-file a second time).

The ultimate goal is to eliminate the wasteful blob reloading when raw
content is needed. As a first step, introduce a Blob abstraction to be
returned by Repo.blob() rather than the cooked content. A subsequent
change will flesh out Blob, allowing it to return raw or cooked content
on demand without the client having to specify one or the other when
invoking Repo.blob().

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>

1 files changed, 1 insertions, 1 deletions

diff --git a/utils.py b/utils.py
index 46407bd..be6ab78 100644
--- a/utils.py
+++ b/utils.py
@@ -107,5 +107,5 @@ def embed_image_blob(repo, dirname, fname):
     raw_blob = repo.blob(dirname + fname, raw = True)
 
     return '<img style="max-width:100%;" src="data:{0};base64,{1}" />'.format( \
-                                    mimetype, base64.b64encode(raw_blob))
+                                    mimetype, base64.b64encode(raw_blob.raw_content))