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#!/usr/bin/env python
# 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 as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
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., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA.
Based on functions from the base bb module, Copyright 2003 Holger Schurig
"""
import os, re
import bb
from bb import data
from bb.fetch import Fetch
from bb.fetch import FetchError
from bb.fetch import MD5SumError
from bb.fetch import uri_replace
class Wget(Fetch):
"""Class to fetch urls via 'wget'"""
def supports(url, d):
"""Check to see if a given url can be fetched using wget.
Expects supplied url in list form, as outputted by bb.decodeurl().
"""
(type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
return type in ['http','https','ftp']
supports = staticmethod(supports)
def localpath(url, d):
# strip off parameters
(type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(url, d))
if "localpath" in parm:
# if user overrides local path, use it.
return parm["localpath"]
url = bb.encodeurl([type, host, path, user, pswd, {}])
return os.path.join(data.getVar("DL_DIR", d), os.path.basename(url))
localpath = staticmethod(localpath)
def go(self, d, urls = []):
"""Fetch urls"""
def md5_sum(parm, d):
"""
Return the MD5SUM associated with the to be downloaded
file.
It can return None if no md5sum is associated
"""
try:
return parm['md5sum']
except:
return None
def verify_md5sum(wanted_sum, got_sum):
"""
Verify the md5sum we wanted with the one we got
"""
if not wanted_sum:
return True
return wanted_sum == got_sum
def fetch_uri(uri, basename, dl, md5, parm, d):
# the MD5 sum we want to verify
wanted_md5sum = md5_sum(parm, d)
if os.path.exists(dl):
# file exists, but we didnt complete it.. trying again..
fetchcmd = data.getVar("RESUMECOMMAND", d, 1)
else:
fetchcmd = data.getVar("FETCHCOMMAND", d, 1)
bb.note("fetch " + uri)
fetchcmd = fetchcmd.replace("${URI}", uri)
fetchcmd = fetchcmd.replace("${FILE}", basename)
bb.debug(2, "executing " + fetchcmd)
ret = os.system(fetchcmd)
if ret != 0:
return False
# check if sourceforge did send us to the mirror page
dl_dir = data.getVar("DL_DIR", d, True)
if not os.path.exists(dl):
os.system("rm %s*" % dl) # FIXME shell quote it
bb.debug(2,"sourceforge.net send us to the mirror on %s" % basename)
return False
# supposedly complete.. write out md5sum
if bb.which(data.getVar('PATH', d), 'md5sum'):
try:
md5pipe = os.popen('md5sum ' + dl)
md5data = (md5pipe.readline().split() or [ "" ])[0]
md5pipe.close()
except OSError:
md5data = ""
# verify the md5sum
if not verify_md5sum(wanted_md5sum, md5data):
raise MD5SumError(uri)
md5out = file(md5, 'w')
md5out.write(md5data)
md5out.close()
return True
if not urls:
urls = self.urls
localdata = data.createCopy(d)
data.setVar('OVERRIDES', "wget:" + data.getVar('OVERRIDES', localdata), localdata)
data.update_data(localdata)
for uri in urls:
completed = 0
(type, host, path, user, pswd, parm) = bb.decodeurl(data.expand(uri, localdata))
basename = os.path.basename(path)
dl = self.localpath(uri, d)
dl = data.expand(dl, localdata)
md5 = dl + '.md5'
if os.path.exists(md5):
# complete, nothing to see here..
continue
premirrors = [ i.split() for i in (data.getVar('PREMIRRORS', localdata, 1) or "").split('\n') if i ]
for (find, replace) in premirrors:
newuri = uri_replace(uri, find, replace, d)
if newuri != uri:
if fetch_uri(newuri, basename, dl, md5, parm, localdata):
completed = 1
break
if completed:
continue
if fetch_uri(uri, basename, dl, md5, parm, localdata):
continue
# try mirrors
mirrors = [ i.split() for i in (data.getVar('MIRRORS', localdata, 1) or "").split('\n') if i ]
for (find, replace) in mirrors:
newuri = uri_replace(uri, find, replace, d)
if newuri != uri:
if fetch_uri(newuri, basename, dl, md5, parm, localdata):
completed = 1
break
if not completed:
raise FetchError(uri)
del localdata
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