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from __future__ import absolute_import

from __future__ import print_function

from __future__ import unicode_literals

import argparse

import os.path

import tarfile

from pre_commit import output

from pre_commit.util import cmd_output

from pre_commit.util import resource_filename

from pre_commit.util import rmtree

from pre_commit.util import tmpdir

# This is a script for generating the tarred resources for git repo

# dependencies. Currently it's just for "vendoring" ruby support packages.

REPOS = (

('rbenv', 'git://github.com/rbenv/rbenv', 'e60ad4a'),

('ruby-build', 'git://github.com/rbenv/ruby-build', '9bc9971'),

(

'ruby-download',

'git://github.com/garnieretienne/rvm-download',

'09bd7c6',

)

def make_archive(name, repo, ref, destdir):

"""Makes an archive of a repository in the given destdir.

:param text name: Name to give the archive. For instance foo. The file

that is created will be called foo.tar.gz.

:param text repo: Repository to clone.

:param text ref: Tag/SHA/branch to check out.

:param text destdir: Directory to place archives in.

"""

output_path = os.path.join(destdir, name + '.tar.gz')

with tmpdir() as tempdir:

# Clone the repository to the temporary directory

cmd_output('git', 'clone', repo, tempdir)

cmd_output('git', 'checkout', ref, cwd=tempdir)

# We don't want the '.git' directory

# It adds a bunch of size to the archive and we don't use it at

# runtime

rmtree(os.path.join(tempdir, '.git'))

with tarfile.open(output_path, 'w|gz') as tf:

tf.add(tempdir, name)

return output_path

def main(argv=None):

parser = argparse.ArgumentParser()

parser.add_argument('--dest', default=resource_filename())

args = parser.parse_args(argv)

for archive_name, repo, ref in REPOS:

output.write_line('Making {}.tar.gz for {}@{}'.format(

archive_name, repo, ref,

))

make_archive(archive_name, repo, ref, args.dest)

if __name__ == '__main__':

exit(main())

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