fabfile.py

from fabric.api import *

[...]

def gzip_assets():
    """
    GZips every file in the assets directory and places the new file
    in the gzip directory with the same filename.
    """
    local('python gzip_assets.py')

def deploy_to_s3():
    """
    Deploy the latest built tables to S3.
    """
    env.gzip_path = 'gzip/tables/'
    local(('s3cmd -P --add-header=Content-encoding:gzip --guess-mime-type sync %(gzip_path)s s3://%(s3_bucket)s/%(project_name)s/') % env)

gzip_assets.py

#!/bin/env python

import os
import gzip
import shutil

class FakeTime:
    def time(self):
        return 1261130520.0

# Hack to override gzip's time implementation
# See: http://stackoverflow.com/questions/264224/setting-the-gzip-timestamp-from-python
gzip.time = FakeTime()

shutil.rmtree('gzip', ignore_errors=True)
shutil.copytree('out', 'gzip')

for path, dirs, files in os.walk('gzip'):
    for filename in files:
        if filename[-3:] in ['gif', 'png', 'jpg']:
            continue
        
        file_path = os.path.join(path, filename)
        
        f_in = open(file_path, 'rb')
        contents = f_in.readlines()
        f_in.close()
        f_out = gzip.open(file_path, 'wb')
        f_out.writelines(contents)
        f_out.close();