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# {{{ License header: GPLv2+
# This file is part of cnucnu.
#
# Cnucnu is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Cnucnu is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cnucnu. If not, see <http://www.gnu.org/licenses/>.
# }}}
import re
import urllib
def restore_underscore(name):
return name.replace("-", "_")
ALIASES = {
"CPAN-DEFAULT": {
"prefix": "perl-",
"url": "http://search.cpan.org/dist/{name}/",
},
"DEBIAN-DEFAULT": {
"url": "http://ftp.debian.org/debian/pool/main/{name[0]}/{name}/",
},
"DEFAULT": {
"regex":
r"(?i)" # ignore case
r"\b{name}[-_]" # word-boundary, name and dash/underscore
r"(?:(?:src|source)[-_])?" # optional src or source string
r"([^-/_\s]*?" #
r"\d"
r"[^-/_\s]*?)"
r"(?:[-_.](?:src|source|orig))?"
r"\.(?:[jt]ar|t[bglx]z|tbz2|zip)\b"
},
"DIR-LISTING-DEFAULT": {
"regex": 'href="([0-9][0-9.]*)/"'
},
"DRUPAL-DEFAULT": {
"prefix": ["drupal6-", "drupal7-"],
"regex": "(?s)Recommended releases.*?>{raw_name[6]}.x-([^<]*)",
"url": "http://drupal.org/project/{name}",
},
"FM-DEFAULT": {
"regex": '<a href="/projects/[^/]*/releases/[0-9]*">([^<]*)</a>',
"url": "http://freshmeat.net/projects/{name}",
},
"GNU-DEFAULT": {
"url": "http://ftp.gnu.org/gnu/{name}/"
},
"GNOME-DEFAULT": {
"url": "http://download.gnome.org/sources/{name}/*/",
},
"GOOGLE-DEFAULT": {
"url": "http://code.google.com/p/{name}/downloads/list"
},
"HACKAGE-DEFAULT": {
"prefix": "ghc-",
"url": "http://hackage.haskell.org/package/{name}",
},
"LP-DEFAULT": {
"url": "https://launchpad.net/{name}/+download"
},
"NPM-DEFAULT": {
"prefix": "nodejs-",
"regex": '"version":"([0-9.]*?)"',
"url": "http://registry.npmjs.org/{name}",
},
"PEAR-DEFAULT": {
"name_modifiers": [restore_underscore],
"prefix": "php-pear-",
"url": "http://pear.php.net/package/{name}/download/All",
},
"PECL-DEFAULT": {
"name_modifiers": [restore_underscore],
"prefix": "php-pecl-",
"url": "http://pecl.php.net/package/{name}/download",
},
"PYPI-DEFAULT": {
"url": "https://pypi.python.org/packages/source/{name[0]}/{name}/",
},
"RUBYGEMS-DEFAULT": {
"prefix": "rubygem-",
"regex":
'"gem_uri":"http:\/\/rubygems.org\/gems\/{name}-([0-9.]*?)\.gem"',
"url": "http://rubygems.org/api/v1/gems/{name}.json",
},
"SF-DEFAULT": {
"url": "http://sourceforge.net/api/file/index/project-name/{name}/"
"mtime/desc/limit/200/rss"
},
}
def unalias(name, value, what):
""" Unalias `value` for package `name`.
:param what: "regex" or "url"
:returns: Unaliased value
"""
raw_name = name
# allow name override with e.g. DEFAULT:othername
if value and ":" in value:
alias, name_override = value.split(":", 1)
if alias in ALIASES.keys():
value = alias
name = name_override
name_override = True
else:
name_override = False
else:
name_override = False
# Use while loop to allow to fall back to DEFAULT value
while value in ALIASES.keys():
if not name_override:
prefixes = ALIASES[value].get("prefix", [])
if isinstance(prefixes, basestring):
prefixes = [prefixes]
for prefix in prefixes:
if name.startswith(prefix):
name = name[len(prefix):]
name_modifiers = ALIASES[value].get("name_modifiers", [])
for modifier in name_modifiers:
name = modifier(name)
# Use DEFAULT regex if None is defined
value = ALIASES[value].get(what, "DEFAULT")
if what == "regex":
format_values = {"name": re.escape(name),
"raw_name": re.escape(raw_name)}
elif what == "url":
format_values = {"name": urllib.quote(name, safe=""),
"raw_name": urllib.quote(raw_name, safe="")}
else:
raise NotImplementedError("what needs ot be 'regex' or 'url'")
value = value.format(**format_values)
return value
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