[pkg] Use sections from requires.txt to populate Recommends and Suggests As Denis Laxalde pointed out, dh_python can also generate Recommends and Suggests from Python package names. So let's use that instead of manually populating these fields in `debian/control`. Optional dependencies are currently specified in `setup.py` grouped by feature. These dependency groups are turned into sections in `requires.txt`. Thankfully `dh_python3` has options to populate Recommends or Suggests with all package from a given section. `debian/rules` now contains a list of which sections should go to Recommends and which section should go to Suggests. Because such extra list easily gets out-of-sync, we add a third list for ignored sections, and ensure that all sections currently in `requires.txt` get a mentioned in `debian/rules`. Here are the results compared to the previous version with explicit Recommends and Suggests (only listing Python packages): |==============================================================| | only in previous | common | only in new | |==============================================================| | Recommends | |--------------------------------------------------------------| | | python3-docutils | | | python3-fyzz | | | | python3-imaging | | | | | python3-pycryptodome | | | | python3-pyramid | | | | python3-pyramid-multiauth | | | python3-pysqlite2 | | | | | python3-rdflib | | | | python3-repoze.lru | | | python3-simpletal | | | | | python3-vobject | | | | python3-waitress | | | python3-werkzeug | | | | | python3-wsgicors | | |--------------------------------------------------------------| | Suggests | |--------------------------------------------------------------| | | | python3-pil | We also lose versioned dependencies which should not really be an issue for Recommends and Suggests.

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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)