From c91beccdb04f0437ac6cd8f13c09117ea9766296 Mon Sep 17 00:00:00 2001
From: Eric Sunshine <sunshine@sunshineco.com>
Date: Tue, 13 Jan 2015 04:57:15 -0500
Subject: blob: cap amount of rendered binary blob content

Although hexdump(1)-style rendering of binary blob content may reveal
some meaningful information about the data, it wastes even more storage
space than embedding the raw data itself. However, many binary files
have a "magic number" or other signature near the beginning of the file,
so it is often possible to glean useful information from just the
initial chunk of the file without having the entire content available.

Thus, limiting the rendered data to just an initial chunk saves storage
space while still potentially presenting useful information about the
binary content.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
---
 static/git-arr.css |  4 ++++
 views/blob.html    | 11 ++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/static/git-arr.css b/static/git-arr.css
index a3fcadb..4e0c7ad 100644
--- a/static/git-arr.css
+++ b/static/git-arr.css
@@ -171,6 +171,10 @@ table.blob-binary .offset {
     border-right: 1px solid #eee;
 }
 
+table.blob-binary tr.etc {
+    text-align: center;
+}
+
 /* Pygments overrides. */
 div.linenodiv {
     padding-right: 0.5em;
diff --git a/views/blob.html b/views/blob.html
index 74c910a..521fe74 100644
--- a/views/blob.html
+++ b/views/blob.html
@@ -48,7 +48,8 @@
             binary &mdash; {{'{:,}'.format(len(blob.raw_content))}} bytes
         </td>
     </tr>
-%   for offset, hex1, hex2, text in hexdump(blob.raw_content):
+%   lim = 256
+%   for offset, hex1, hex2, text in hexdump(blob.raw_content[:lim]):
     <tr>
         <td class="offset">{{offset}}</td>
         <td><pre>{{hex1}}</pre></td>
@@ -56,6 +57,14 @@
         <td><pre>{{text}}</pre></td>
     </tr>
 %   end
+%   if lim < len(blob.raw_content):
+    <tr class="etc">
+        <td></td>
+        <td>&hellip;</td>
+        <td>&hellip;</td>
+        <td>&hellip;</td>
+    </tr>
+%   end
 </table>
 % elif can_markdown(repo, fname.unicode):
 {{!markdown_blob(blob.utf8_content)}}
-- 
cgit v1.2.3