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#!/usr/bin/env python2
#emacs: -*- mode: python; py-indent-offset: 4; tab-width: 4; indent-tabs-mode: nil -*-
#ex: set sts=4 ts=4 sw=4 noet:
"""
Simple script to simulate an annex repository given a list of files.
Not sure why I wrote it in Python, since in bash it would be more natural and shorter ;)
COPYRIGHT: Yaroslav Halchenko 2014
LICENSE: MIT
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
__author__ = 'Yaroslav Halchenko'
__copyright__ = 'Copyright (c) 2014 Yaroslav Halchenko'
__license__ = 'MIT'
import fileinput
import os
import sys
import commands
i = 0
addurl = "http://some.example.com/prefix/"
def run_command(cmd):
global i
st, output = commands.getstatusoutput(cmd)
if st != 0:
raise RuntimeError("E: run of {cmd} failed with status={st} output={output}".format(**locals()))
return st, output
def init_git_annex(path):
if os.path.exists(path):
raise RuntimeError("path {path} exists already".format(**locals()))
run_command('mkdir -p {path}; cd {path}; git init; git annex init'.format(**locals()))
print("I: initialized in {}".format(path))
def populate_git_annex(list_, path='.'):
count = 0
i = 0
for l in fileinput.FileInput(list_, openhook=fileinput.hook_compressed):
if not l: break
i += 1
items = l.rstrip().split(None, 3)
s3filename = items[-1]
if s3filename.endswith('/'):
continue
if not s3filename.startswith('s3://'):
print "ERROR: %i: %s is not starting with s3://" % (i, s3filename)
import pdb; pdb.set_trace()
# create a dummy file with content being just a filename
filename_ = s3filename[5:]
filename = os.path.join(path, filename_)
dirname = os.path.dirname(filename)
if not os.path.exists(dirname):
os.makedirs(dirname)
with open(filename, 'w') as fout:
fout.write(filename)
count += 1
if not (i % 100):
sys.stdout.write('.')
sys.stdout.flush()#print("D: ran {cmd}. Got output {output}".format(**locals()))
# TODO
if addurl:
# we need to add a url for each file, thus first we just annex add
run_command('cd {path}; git annex add {filename_}'.format(**locals()))
# and then add a bogus url
url = addurl + filename_
run_command('cd {path}; git annex addurl --relaxed --file={filename_} {url}'.format(**locals()))
if not addurl:
print()
print("I: adding to annex {count} files after processing {i} lines".format(**locals()))
run_command('cd {path}; git annex add *'.format(**locals()))
print("I: committing")
run_command('cd {path}; git commit -m "final commit"'.format(**locals()))
print "DONE. Created {} files".format(count)
def git_repack(path):
print("Repacking {}".format(path))
run_command("cd {path}; git repack -a -d -f --window=100".format(path=path))
def du(path):
st, output = commands.getstatusoutput('du -sk {path}'.format(path=path))
print "du for {path}: {output}".format(**locals())
if __name__ == '__main__':
list_ = sys.argv[1]
path = sys.argv[2]
init_git_annex(path)
populate_git_annex(list_, path)
du(path)
git_repack(path)
du(path)
# let's now clone
run_command("git clone --no-hardlinks {path} {path}.cloned".format(path=path))
du(path+".cloned")
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