[db-api/configuration] simplify db-api and configuration so that all the connection information is in the repository url, closes #2521848 eg no more specific option of pyro ns host, group, etc. This also fixes broken ZMQ sources. Changes: * dropped pyro-ns-host, pyro-instance-id, pyro-ns-group from client side config, in favor of repository-uri. No migration done, supposing there is **no web-only config** in the wild. Also stop discovering the connection method through the repo_method class attribute of the configuration, varying according to the configuration class. This is a first step on the way to a simpler configuration handling. Notice those pyro options are still available for repository only / all-in-one configurations as they are needed to configure the pyro server. * stop telling connection method using ConnectionProperties, this is so boring. Also, drop _cnxtype from Connection and cnxtype from Session. The former is replaced by a is_repo_in_memory property and the later is totaly useless. * deprecate in_memory_cnx which becomes useless, use _repo_connect instead

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#!/usr/bin/python

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"""usage: fix-po-encodings [filename...]

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change the encoding of the po files passed as arguments to utf-8

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"""

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import sys

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import re

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import codecs

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def change_encoding(filename, target='UTF-8'):

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    fdesc = open(filename)

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    data = fdesc.read()

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    fdesc.close()

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    encoding = find_encoding(data)

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    if encoding == target:

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        return

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    data = fix_encoding(data, target)

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    data = unicode(data, encoding)

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    fdesc = codecs.open(filename, 'wb', encoding=target)

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    fdesc.write(data)

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    fdesc.close()

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def find_encoding(data):

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    regexp = re.compile(r'"Content-Type:.* charset=([a-zA-Z0-9-]+)\\n"', re.M)

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    mo = regexp.search(data)

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    if mo is None:

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        raise ValueError('No encoding declaration')

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    return mo.group(1)

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def fix_encoding(data, target_encoding):

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    regexp = re.compile(r'("Content-Type:.* charset=)(.*)(\\n")', re.M)

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    return regexp.sub(r'\1%s\3' % target_encoding, data)

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for filename in sys.argv[1:]:

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    print filename

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    change_encoding(filename)