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//usr/bin/glacier

#!/usr/bin/python2
# -*- coding: utf-8 -*-
# Copyright (c) 2012 Miguel Olivares http://moliware.com/
#
# 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, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing 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 MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR 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.
#
"""
  glacier
  ~~~~~~~

Amazon Glacier tool built on top of boto. Look at the usage method to see
    how to use it.

Author: Miguel Olivares <miguel@moliware.com>
"""
import sys

from boto.glacier import connect_to_region
from getopt import getopt, GetoptError
from os.path import isfile, basename

COMMANDS = ('vaults', 'jobs', 'upload')

def usage():
    print("""
glacier <command> [args]

Commands
        vaults    - Operations with vaults
        jobs      - Operations with jobs
        upload    - Upload files to a vault. If the vault doesn't exits, it is
                    created

Common args:
        --access_key - Your AWS Access Key ID.  If not supplied, boto will
                       use the value of the environment variable
                       AWS_ACCESS_KEY_ID
        --secret_key - Your AWS Secret Access Key.  If not supplied, boto
                       will use the value of the environment variable
                       AWS_SECRET_ACCESS_KEY
        --region     - AWS region to use. Possible values: us-east-1, us-west-1,
                       us-west-2, ap-northeast-1, eu-west-1.
                       Default: us-east-1

Vaults operations:

List vaults:
            glacier vaults

Jobs operations:

List jobs:
            glacier jobs <vault name>

Uploading files:

glacier upload <vault name> <files>

Examples : 
            glacier upload pics *.jpg
            glacier upload pics a.jpg b.jpg
""")
    sys.exit()

def connect(region, debug_level=0, access_key=None, secret_key=None):
    """ Connect to a specific region """
    layer2 = connect_to_region(region,
                               aws_access_key_id=access_key,
                               aws_secret_access_key=secret_key,
                               debug=debug_level)
    if layer2 is None:
        print('Invalid region (%s)' % region)
        sys.exit(1)
    return layer2

def list_vaults(region, access_key=None, secret_key=None):
    layer2 = connect(region, access_key = access_key, secret_key = secret_key)
    for vault in layer2.list_vaults():
        print(vault.arn)

def list_jobs(vault_name, region, access_key=None, secret_key=None):
    layer2 = connect(region, access_key = access_key, secret_key = secret_key)
    print(layer2.layer1.list_jobs(vault_name))

def upload_files(vault_name, filenames, region, access_key=None, secret_key=None):
    layer2 = connect(region, access_key = access_key, secret_key = secret_key)
    layer2.create_vault(vault_name)
    glacier_vault = layer2.get_vault(vault_name)
    for filename in filenames:
        if isfile(filename):
            print('Uploading %s to %s' % (filename, vault_name))
            glacier_vault.upload_archive(filename, description = basename(filename))

def main():
    if len(sys.argv) < 2:
        usage()
    
    command = sys.argv[1]
    if command not in COMMANDS:
        usage()

argv = sys.argv[2:]
    options = 'a:s:r:'
    long_options = ['access_key=', 'secret_key=', 'region=']
    try:
        opts, args = getopt(argv, options, long_options)
    except GetoptError as e:
        usage()

# Parse agument
    access_key = secret_key = None
    region = 'us-east-1'
    for option, value in opts:
        if option in ('-a', '--access_key'):
            access_key = value
        elif option in ('-s', '--secret_key'):
            secret_key = value
        elif option in ('-r', '--region'):
            region = value
    # handle each command
    if command == 'vaults':
        list_vaults(region, access_key, secret_key)
    elif command == 'jobs':
        if len(args) != 1:
            usage()
        list_jobs(args[0], region, access_key, secret_key)
    elif command == 'upload':
        if len(args) < 2:
            usage()
        upload_files(args[0], args[1:], region, access_key, secret_key)

if __name__ == '__main__':
    main()