Shows repeated calls to repos not being cached.

foo.txt

git+git://github.com/Celc/facebook-sdk.git@05ef99bbd2eab3dced959cbd913b2719772a1861#egg=facebook-sdk
git+git://github.com/bmihelac/django-import-export.git@e3087e4dc7b0a191587c2a890035286c065f4971#egg=import-export

output

% pip install -r foo.txt 
Downloading/unpacking facebook-sdk from git+git://github.com/Celc/facebook-sdk.git@05ef99bbd2eab3dced959cbd913b2719772a1861 (from -r foo.txt (line 1))
  Cloning git://github.com/Celc/facebook-sdk.git (to 05ef99bbd2eab3dced959cbd913b2719772a1861) to /home/deploy/.virtualenv/foo/build/facebook-sdk
  Could not find a tag or branch '05ef99bbd2eab3dced959cbd913b2719772a1861', assuming commit.
  Running setup.py egg_info for package facebook-sdk
    
Downloading/unpacking import-export from git+git://github.com/bmihelac/django-import-export.git@e3087e4dc7b0a191587c2a890035286c065f4971 (from -r foo.txt (line 2))
  Cloning git://github.com/bmihelac/django-import-export.git (to e3087e4dc7b0a191587c2a890035286c065f4971) to /home/deploy/.virtualenv/foo/build/import-export
  Could not find a tag or branch 'e3087e4dc7b0a191587c2a890035286c065f4971', assuming commit.
  Running setup.py egg_info for package import-export
    
Downloading/unpacking tablib (from import-export->-r foo.txt (line 2))
  Downloading tablib-0.9.11.tar.gz (571Kb): 571Kb downloaded
  Storing download in cache at /home/deploy/pip-cache/http%3A%2F%2Fe.pypi.python.org%2Fpackages%2Fsource%2Ft%2Ftablib%2Ftablib-0.9.11.tar.gz
  Running setup.py egg_info for package tablib
    
Downloading/unpacking Django>=1.4.2 (from import-export->-r foo.txt (line 2))
  Using download cache from /home/deploy/pip-cache/http%3A%2F%2Fe.pypi.python.org%2Fpackages%2Fsource%2FD%2FDjango%2FDjango-1.5.2.tar.gz
  Running setup.py egg_info for package Django
    
    warning: no previously-included files matching '__pycache__' found under directory '*'
    warning: no previously-included files matching '*.py[co]' found under directory '*'
Downloading/unpacking diff-match-patch (from import-export->-r foo.txt (line 2))
  Downloading diff-match-patch-20120106.tar.gz (54Kb): 54Kb downloaded
  Storing download in cache at /home/deploy/pip-cache/http%3A%2F%2Fe.pypi.python.org%2Fpackages%2Fsource%2Fd%2Fdiff-match-patch%2Fdiff-match-patch-20120106.tar.gz
  Running setup.py egg_info for package diff-match-patch
    
Installing collected packages: facebook-sdk, import-export, tablib, Django, diff-match-patch
  Running setup.py install for facebook-sdk
    
  Running setup.py install for import-export
    
  Running setup.py install for tablib
    
  Running setup.py install for Django
    changing mode of build/scripts-2.7/django-admin.py from 664 to 775
    
    warning: no previously-included files matching '__pycache__' found under directory '*'
    warning: no previously-included files matching '*.py[co]' found under directory '*'
    changing mode of /home/deploy/.virtualenv/foo/bin/django-admin.py to 775
  Running setup.py install for diff-match-patch
    
Successfully installed facebook-sdk import-export tablib Django diff-match-patch
Cleaning up...
(foo)[deploy@ip-10-136-87-61@13/08/16,19:50:~/media-pop](staging)
% pip install -r foo.txt 
Requirement already satisfied (use --upgrade to upgrade): facebook-sdk from git+git://github.com/Celc/facebook-sdk.git@05ef99bbd2eab3dced959cbd913b2719772a1861 in /home/deploy/.virtualenv/foo/lib/python2.7/site-packages (from -r foo.txt (line 1))
Downloading/unpacking import-export from git+git://github.com/bmihelac/django-import-export.git@e3087e4dc7b0a191587c2a890035286c065f4971 (from -r foo.txt (line 2))
  Cloning git://github.com/bmihelac/django-import-export.git (to e3087e4dc7b0a191587c2a890035286c065f4971) to /home/deploy/.virtualenv/foo/build/import-export
  Could not find a tag or branch 'e3087e4dc7b0a191587c2a890035286c065f4971', assuming commit.
  Running setup.py egg_info for package import-export
    
Requirement already satisfied (use --upgrade to upgrade): tablib in /home/deploy/.virtualenv/foo/lib/python2.7/site-packages (from import-export->-r foo.txt (line 2))
Requirement already satisfied (use --upgrade to upgrade): Django>=1.4.2 in /home/deploy/.virtualenv/foo/lib/python2.7/site-packages (from import-export->-r foo.txt (line 2))
Requirement already satisfied (use --upgrade to upgrade): diff-match-patch in /home/deploy/.virtualenv/foo/lib/python2.7/site-packages (from import-export->-r foo.txt (line 2))
Installing collected packages: import-export
  Running setup.py install for import-export
    
Successfully installed import-export
Cleaning up...
(foo)[deploy@ip-10-136-87-61@13/08/16,19:51:~/media-pop](staging)