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# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Fetch' implementations
Classes for obtaining upstream sources for the
BitBake build tools.
"""
# Copyright (C) 2003, 2004 Chris Larson
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
import os, re
import bb
from bb import data
class FetchError(Exception):
"""Exception raised when a download fails"""
class NoMethodError(Exception):
"""Exception raised when there is no method to obtain a supplied url or set of urls"""
class MissingParameterError(Exception):
"""Exception raised when a fetch method is missing a critical parameter in the url"""
class ParameterError(Exception):
"""Exception raised when a url cannot be proccessed due to invalid parameters."""
class MD5SumError(Exception):
"""Exception raised when a MD5SUM of a file does not match the expected one"""
def uri_replace(uri, uri_find, uri_replace, d):
# bb.note("uri_replace: operating on %s" % uri)
if not uri or not uri_find or not uri_replace:
bb.debug(1, "uri_replace: passed an undefined value, not replacing")
uri_decoded = list(bb.decodeurl(uri))
uri_find_decoded = list(bb.decodeurl(uri_find))
uri_replace_decoded = list(bb.decodeurl(uri_replace))
result_decoded = ['','','','','',{}]
for i in uri_find_decoded:
loc = uri_find_decoded.index(i)
result_decoded[loc] = uri_decoded[loc]
import types
if type(i) == types.StringType:
import re
if (re.match(i, uri_decoded[loc])):
result_decoded[loc] = re.sub(i, uri_replace_decoded[loc], uri_decoded[loc])
if uri_find_decoded.index(i) == 2:
if d:
localfn = bb.fetch.localpath(uri, d)
if localfn:
result_decoded[loc] = os.path.dirname(result_decoded[loc]) + "/" + os.path.basename(bb.fetch.localpath(uri, d))
# bb.note("uri_replace: matching %s against %s and replacing with %s" % (i, uri_decoded[loc], uri_replace_decoded[loc]))
else:
# bb.note("uri_replace: no match")
return uri
# else:
# for j in i.keys():
# FIXME: apply replacements against options
return bb.encodeurl(result_decoded)
methods = []
def init(urls = [], d = None):
if d == None:
bb.debug(2,"BUG init called with None as data object!!!")
return
for m in methods:
m.urls = []
for u in urls:
for m in methods:
m.data = d
if m.supports(u, d):
m.urls.append(u)
def go(d):
"""Fetch all urls"""
for m in methods:
if m.urls:
m.go(d)
def localpaths(d):
"""Return a list of the local filenames, assuming successful fetch"""
local = []
for m in methods:
for u in m.urls:
local.append(m.localpath(u, d))
return local
def localpath(url, d):
for m in methods:
if m.supports(url, d):
return m.localpath(url, d)
return url
class Fetch(object):
"""Base class for 'fetch'ing data"""
def __init__(self, urls = []):
self.urls = []
for url in urls:
if self.supports(bb.decodeurl(url), d) is 1:
self.urls.append(url)
def supports(url, d):
"""Check to see if this fetch class supports a given url.
Expects supplied url in list form, as outputted by bb.decodeurl().
"""
return 0
supports = staticmethod(supports)
def localpath(url, d):
"""Return the local filename of a given url assuming a successful fetch.
"""
return url
localpath = staticmethod(localpath)
def setUrls(self, urls):
self.__urls = urls
def getUrls(self):
return self.__urls
urls = property(getUrls, setUrls, None, "Urls property")
def setData(self, data):
self.__data = data
def getData(self):
return self.__data
data = property(getData, setData, None, "Data property")
def go(self, urls = []):
"""Fetch urls"""
raise NoMethodError("Missing implementation for url")
def getSRCDate(d):
"""
Return the SRC Date for the component
d the bb.data module
"""
return data.getVar("SRCDATE", d, 1) or data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1 )
getSRCDate = staticmethod(getSRCDate)
def try_mirror(d, tarfn):
"""
Try to use a mirrored version of the sources. We do this
to avoid massive loads on foreign cvs and svn servers.
This method will be used by the different fetcher
implementations.
d Is a bb.data instance
tarfn is the name of the tarball
"""
tarpath = os.path.join(data.getVar("DL_DIR", d, 1), tarfn)
if os.access(tarpath, os.R_OK):
bb.debug(1, "%s already exists, skipping checkout." % tarfn)
return True
pn = data.getVar('PN', d, True)
src_tarball_stash = None
if pn:
src_tarball_stash = (data.getVar('SRC_TARBALL_STASH_%s' % pn, d, True) or data.getVar('CVS_TARBALL_STASH_%s' % pn, d, True) or data.getVar('SRC_TARBALL_STASH', d, True) or data.getVar('CVS_TARBALL_STASH', d, True) or "").split()
for stash in src_tarball_stash:
fetchcmd = data.getVar("FETCHCOMMAND_mirror", d, True) or data.getVar("FETCHCOMMAND_wget", d, True)
uri = stash + tarfn
bb.note("fetch " + uri)
fetchcmd = fetchcmd.replace("${URI}", uri)
ret = os.system(fetchcmd)
if ret == 0:
bb.note("Fetched %s from tarball stash, skipping checkout" % tarfn)
return True
return False
try_mirror = staticmethod(try_mirror)
def check_for_tarball(d, tarfn, dldir, date):
"""
Check for a local copy then check the tarball stash.
Both checks are skipped if date == 'now'.
d Is a bb.data instance
tarfn is the name of the tarball
date is the SRCDATE
"""
if "now" != date:
dl = os.path.join(dldir, tarfn)
if os.access(dl, os.R_OK):
bb.debug(1, "%s already exists, skipping checkout." % tarfn)
return True
# try to use the tarball stash
if Fetch.try_mirror(d, tarfn):
return True
return False
check_for_tarball = staticmethod(check_for_tarball)
import cvs
import git
import local
import svn
import wget
import svk
methods.append(cvs.Cvs())
methods.append(git.Git())
methods.append(local.Local())
methods.append(svn.Svn())
methods.append(wget.Wget())
methods.append(svk.Svk())
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