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loappimage-helpers/loaih/__init__.py

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#!/usr/bin/env python
# encoding: utf-8
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import urllib.request
from lxml import etree
from packaging.version import parse as parse_version
import datetime
class Definitions(object):
DOWNLOADPAGE = "https://www.libreoffice.org/download/download/"
ARCHIVE = "https://downloadarchive.documentfoundation.org/libreoffice/old/"
RELEASE = "https://download.documentfoundation.org/libreoffice/stable/"
DAILY = "https://dev-builds.libreoffice.org/daily/master/Linux-rpm_deb-x86_64@tb87-TDF/"
PRERELEASE = "https://dev-builds.libreoffice.org/pre-releases/deb/x86_64/"
SELECTORS = {
'still': {
'URL': DOWNLOADPAGE,
'xpath': '(//span[@class="dl_version_number"])[last()]/text()'
},
'fresh': {
'URL': DOWNLOADPAGE,
'xpath': '(//span[@class="dl_version_number"])[1]/text()'
},
'prerelease': {
'URL': DOWNLOADPAGE,
'xpath': '//p[@class="lead_libre"][last()]/following-sibling::ul[last()]/li/a/text()'
},
'daily': {
'URL': DAILY,
'xpath': '//td/a'
}
}
class Base(object):
# Class for static methods which might be useful even outside the build
# scripts.
@staticmethod
def dailyurl(date = datetime.datetime.today()):
"""Returns the URL for the latest valid daily build."""
# As per other parts of the build, we need to maintain an URL also for
# x86 versions that it isn't really provided.
# As such, the return value must be a dictionary
# Get the anchor for today's builds
a = etree.HTML(urllib.request.urlopen(Definitions.DAILY).read()).xpath("//td/a[contains(text(), '" + date.strftime('%Y-%m-%d') + "')]/text()")
if len(a) == 0:
# No results found, no version found, let's return a
return { 'x86': '-', 'x86_64': '-' }
# On the contrary, more than a version is found. let's order the
# list and get the latest item
return { 'x86': '-', 'x86_64': Definitions.SELECTORS['daily']['URL'] + sorted(a)[-1] }
@staticmethod
def dailyver(date = datetime.datetime.today()):
"""Returns versions present on the latest daily build."""
url = Base.dailyurl(date)['x86_64']
# If no daily releases has been provided yet, return empty
if url == '-':
return []
# Rerun the page parsing, this time to find out the versions built
b = etree.HTML(urllib.request.urlopen(url).read()).xpath("//td/a[contains(text(), '_deb.tar.gz')]/text()")
# This should have returned the main package for a version, but can
# have returned multiple ones, so let's treat it as a list
return [ x.split('_')[1] for x in b ]
@staticmethod
def namedver(query):
"""Gets the version for a specific named version."""
if query == 'daily' or query == 'yesterday':
# Daily needs double parsing for the same result to apply.
# We first select today's build anchor:
date = datetime.datetime.today()
if query == 'yesterday':
# Use yesterdays' date for testing purposes.
date += datetime.timedelta(days=-1)
return Base.dailyver(date)
# In case the query isn't for daily
return etree.HTML(urllib.request.urlopen(Definitions.SELECTORS[query]['URL']).read()).xpath(Definitions.SELECTORS[query]['xpath'])
@staticmethod
def fullversion(version):
"""Get latest full version from Archive based on partial version."""
versionlist = etree.HTML(urllib.request.urlopen(Definitions.ARCHIVE).read()).xpath(f"//td/a[starts-with(text(), '{version}')]/text()")
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if versionlist:
cleanlist = sorted([ x.strip('/') for x in versionlist ])
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# Sorting, then returning the last version
return cleanlist[-1]
return None
@staticmethod
def urlfromqueryandver(query, version):
"""Returns the fetching URL based on the queried version and the numeric version of it."""
# This has the purpose to simplify and explain how the releases are
# layed out.
# If the query tells about daily or 'yesterday' (for testing purposes),
# we might ignore versions and return the value coming from dailyurl:
if query == 'daily':
return Base.dailyurl()
if query == 'yesterday':
date = datetime.datetime.today() + datetime.timedelta(days=-1)
return Base.dailyurl(date)
# All other versions will be taken from Archive, as such we need a full
# version.
# If the version has only 2 points in it (or splits into three parts by '.'), that's not a full version and we will call the getlatestver() function
fullversion = str(version)
if len(fullversion.split('.')) <= 3:
fullversion = str(Base.fullversion(version))
# So the final URL is the Archive one, plus the full versions, plus a
# final '/deb/' - and an arch subfolder
baseurl = Definitions.ARCHIVE + fullversion + '/deb/'
retval = {}
# x86 binaries are not anymore offered after 6.3.0.
if parse_version(fullversion) < parse_version('6.3.0'):
retval['x86'] = baseurl + 'x86/'
else:
retval['x86'] = '-'
retval['x86_64'] = baseurl + 'x86_64/'
return retval
@staticmethod
def collectedbuilds(query):
"""Creates a list of Builds based on each queried version found."""
retval = []
if '.' in query:
# Called with a numeric query. Pass it to RemoteBuild
retval.append(RemoteBuild(query))
else:
# Named query
a = Base.namedver(query)
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if not a:
# a is empty
return retval
if isinstance(a, list) and len(a) > 1:
retval.extend([ RemoteBuild(query, version) for version in a ])
else:
retval.append(RemoteBuild(query))
return sorted(retval, key=lambda x: x.version)
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class RemoteBuild(object):
def __init__(self, query, version = None):
"""Should simplify the single builded version."""
self.query = query
self.version = ''
self.basedirurl = { 'x86': '-', 'x86_64': '-' }
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if version and isinstance(version, str):
self.version = version
if not '.' in self.query:
# Named version.
# Let's check if a specific version was requested.
if self.version == '':
# In case it was not requested, we will carry on the generic
# namedver() query.
# If the results are more than one, we'll take the latest (since we are requested to provide a single build).
a = Base.namedver(self.query)
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if isinstance(a, list):
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# if the number of versions is zero, return and exit
if not a:
return None
if len(a) == 1:
# version is a single one.
self.version = a[0]
else:
# In this case, we will select the latest release.
self.version = sorted(a)[-1]
# If the version has already a version, as requested by user,
# continue using that version
else:
# In case of numbered queries, put it as initial version
self.version = self.query
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if len(str(self.version).split('.')) < 4:
# If not 4 dotted, let's search for the 4 dotted version
self.version = Base.fullversion(self.version)
self.basedirurl = Base.urlfromqueryandver(self.query, self.version)
def todict(self):
return {
'query': self.query,
'version': self.version,
'basedirurl': self.basedirurl
}
def __str__(self):
return f"""query: {self.query}
version: {self.version}
x86: {self.basedirurl['x86']}
x86_64: {self.basedirurl['x86_64']}"""