cmd-join: don't restart git cat-file so frequently.

We would restart cat-file for every id passed on the command line or via
stdin, which was needlessly inefficient.

diff --git a/cmd-join.py b/cmd-join.py
index 6ad32feb7bb294f36b2cea6bcea86b05ef60e21a..07dfdcd238b22eb551468aafcd855be1b4344c97 100755 (executable)
--- a/cmd-join.py
+++ b/cmd-join.py
@@ -25,7 +25,8 @@ if opt.remote:
             sys.stdout.write(blob)
     cli.close()
 else:
+    cp = git.CatPipe()
     for id in extra:
         #log('id=%r\n' % id)
-        for blob in git.cat(id):
+        for blob in cp.join(id):
             sys.stdout.write(blob)