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|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
elpa_db.py
~~~~~~~~~~
ELPA package database
:copyright: (c) 2013-2014 by Jauhien Piatlicki
:license: GPL-2, see LICENSE for more details.
"""
import sexpdata
from g_sorcery.compatibility import basestring, py2k
if py2k:
from urlparse import urljoin
else:
from urllib.parse import urljoin
from g_sorcery.g_collections import Dependency, Package, serializable_elist
from g_sorcery.package_db import DBGenerator
from g_sorcery.exceptions import SyncError
class ElpaDBGenerator(DBGenerator):
"""
Implementation of database generator for ELPA backend.
"""
def get_download_uries(self, common_config, config):
"""
Download database file from REPO_URI/archive-contents
and parse it with sexpdata.
Args:
common_config: Backend config.
config: Repository config.
Returns:
List with one URI entry.
"""
ac_uri = urljoin(config["repo_uri"], 'archive-contents')
return [{"uri" : ac_uri, "parser" : sexpdata.load}]
def process_data(self, pkg_db, data, common_config, config):
"""
Process downloaded and parsed data and generate tree.
Args:
pkg_db: Package database.
data: Dictionary with data, keys are file names.
common_config; Backend config.
config: Repository config.
"""
archive_contents = data['archive-contents']
repo_uri = config["repo_uri"]
if sexpdata.car(archive_contents) != 1:
raise SyncError('sync failed: ' \
+ repo_uri + ' bad archive contents format')
pkg_db.add_category('app-emacs')
PKG_INFO = 2
PKG_NAME = 0
INFO_VERSION = 0
INFO_DEPENDENCIES = 1
INFO_DESCRIPTION = 2
INFO_SRC_TYPE = 3
DEP_NAME = 0
#DEP_VERSION = 1 #we do not use it at the moment
for entry in sexpdata.cdr(archive_contents):
desc = entry[PKG_INFO].value()
realname = entry[PKG_NAME].value()
if self.in_config([common_config, config], "exclude", realname):
continue
pkg = Package("app-emacs", realname,
'.'.join(map(str, desc[INFO_VERSION])))
source_type = desc[INFO_SRC_TYPE].value()
allowed_ords = set(range(ord('a'), ord('z'))) \
| set(range(ord('A'), ord('Z'))) | \
set(range(ord('0'), ord('9'))) | set(list(map(ord,
['+', '_', '-', ' ', '.', '(', ')', '[', ']', '{', '}', ','])))
description = "".join([x for x in desc[INFO_DESCRIPTION] if ord(x) in allowed_ords])
deps = desc[INFO_DEPENDENCIES]
#fix for crappy arhive-contents that have "No commentary."
#in place of dependency
if isinstance(deps, basestring):
deps = []
dependencies = serializable_elist(separator="\n\t")
for dep in deps:
dep = self.convert_dependency([common_config, config],
dep[DEP_NAME].value(), external = False)
if dep:
dependencies.append(dep)
properties = {'source_type' : source_type,
'description' : description,
'dependencies' : dependencies,
'depend' : dependencies,
'rdepend' : dependencies,
'homepage' : repo_uri,
'repo_uri' : repo_uri,
'realname' : realname,
#eclass entry
'eclasses' : ['g-sorcery', 'gs-elpa'],
#metadata entries
'maintainer' : [{'email' : 'jauhien@gentoo.org',
'name' : 'Jauhien Piatlicki'}],
'longdescription' : description
}
pkg_db.add_package(pkg, properties)
def convert_internal_dependency(self, configs, dependency):
"""
At the moment we have only internal dependencies, each of them
is just a package name.
Args:
configs: Backend and repo configs.
dependency: Package name.
Returns:
Dependency instance with category="app-emacs", package="dependency".
"""
return Dependency("app-emacs", dependency)
|
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