bitbake: Drop fetch v1, v2 provides a much better codebase to build from

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 832 deletions

diff --git a/lib/bb/fetch/__init__.py b/lib/bb/fetch/__init__.py
deleted file mode 100644
index 18988646b..000000000
--- a/lib/bb/fetch/__init__.py
+++ /dev/null
@@ -1,832 +0,0 @@
-# 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
-
-from __future__ import absolute_import
-from __future__ import print_function
-import os, re
-import logging
-import bb
-from   bb import data
-from   bb import persist_data
-from   bb import utils
-
-__version__ = "1"
-
-logger = logging.getLogger("BitBake.Fetch")
-
-class MalformedUrl(Exception):
-    """Exception raised when encountering an invalid url"""
-
-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"""
-
-class InvalidSRCREV(Exception):
-    """Exception raised when an invalid SRCREV is encountered"""
-
-def decodeurl(url):
-    """Decodes an URL into the tokens (scheme, network location, path,
-    user, password, parameters).
-    """
-
-    m = re.compile('(?P<type>[^:]*)://((?P<user>.+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
-    if not m:
-        raise MalformedUrl(url)
-
-    type = m.group('type')
-    location = m.group('location')
-    if not location:
-        raise MalformedUrl(url)
-    user = m.group('user')
-    parm = m.group('parm')
-
-    locidx = location.find('/')
-    if locidx != -1 and type.lower() != 'file':
-        host = location[:locidx]
-        path = location[locidx:]
-    else:
-        host = ""
-        path = location
-    if user:
-        m = re.compile('(?P<user>[^:]+)(:?(?P<pswd>.*))').match(user)
-        if m:
-            user = m.group('user')
-            pswd = m.group('pswd')
-    else:
-        user = ''
-        pswd = ''
-
-    p = {}
-    if parm:
-        for s in parm.split(';'):
-            s1, s2 = s.split('=')
-            p[s1] = s2
-
-    return (type, host, path, user, pswd, p)
-
-def encodeurl(decoded):
-    """Encodes a URL from tokens (scheme, network location, path,
-    user, password, parameters).
-    """
-
-    (type, host, path, user, pswd, p) = decoded
-
-    if not type or not path:
-        raise MissingParameterError("Type or path url components missing when encoding %s" % decoded)
-    url = '%s://' % type
-    if user:
-        url += "%s" % user
-        if pswd:
-            url += ":%s" % pswd
-        url += "@"
-    if host:
-        url += "%s" % host
-    url += "%s" % path
-    if p:
-        for parm in p:
-            url += ";%s=%s" % (parm, p[parm])
-
-    return url
-
-def uri_replace(uri, uri_find, uri_replace, d):
-    if not uri or not uri_find or not uri_replace:
-        logger.debug(1, "uri_replace: passed an undefined value, not replacing")
-    uri_decoded = list(decodeurl(uri))
-    uri_find_decoded = list(decodeurl(uri_find))
-    uri_replace_decoded = list(decodeurl(uri_replace))
-    result_decoded = ['', '', '', '', '', {}]
-    for i in uri_find_decoded:
-        loc = uri_find_decoded.index(i)
-        result_decoded[loc] = uri_decoded[loc]
-        if isinstance(i, basestring):
-            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.join(os.path.dirname(result_decoded[loc]), os.path.basename(bb.fetch.localpath(uri, d)))
-            else:
-                return uri
-    return encodeurl(result_decoded)
-
-methods = []
-urldata_cache = {}
-saved_headrevs = {}
-
-def fetcher_init(d):
-    """
-    Called to initialize the fetchers once the configuration data is known.
-    Calls before this must not hit the cache.
-    """
-    # When to drop SCM head revisions controlled by user policy
-    srcrev_policy = d.getVar('BB_SRCREV_POLICY', True) or "clear"
-    if srcrev_policy == "cache":
-        logger.debug(1, "Keeping SRCREV cache due to cache policy of: %s", srcrev_policy)
-    elif srcrev_policy == "clear":
-        logger.debug(1, "Clearing SRCREV cache due to cache policy of: %s", srcrev_policy)
-        revs = persist_data.persist('BB_URI_HEADREVS', d)
-        try:
-            bb.fetch.saved_headrevs = revs.items()
-        except:
-            pass
-        revs.clear()
-    else:
-        raise FetchError("Invalid SRCREV cache policy of: %s" % srcrev_policy)
-
-    for m in methods:
-        if hasattr(m, "init"):
-            m.init(d)
-
-def fetcher_compare_revisions(d):
-    """
-    Compare the revisions in the persistant cache with current values and
-    return true/false on whether they've changed.
-    """
-
-    data = persist_data.persist('BB_URI_HEADREVS', d).items()
-    data2 = bb.fetch.saved_headrevs
-
-    changed = False
-    for key in data:
-        if key not in data2 or data2[key] != data[key]:
-            logger.debug(1, "%s changed", key)
-            changed = True
-            return True
-        else:
-            logger.debug(2, "%s did not change", key)
-    return False
-
-# Function call order is usually:
-#   1. init
-#   2. go
-#   3. localpaths
-# localpath can be called at any time
-
-def init(urls, d, setup = True):
-    urldata = {}
-
-    fn = d.getVar('FILE', True)
-    if fn in urldata_cache:
-        urldata = urldata_cache[fn]
-
-    for url in urls:
-        if url not in urldata:
-            urldata[url] = FetchData(url, d)
-
-    if setup:
-        for url in urldata:
-            if not urldata[url].setup:
-                urldata[url].setup_localpath(d)
-
-    urldata_cache[fn] = urldata
-    return urldata
-
-def mirror_from_string(data):
-    return [ i.split() for i in (data or "").replace('\\n','\n').split('\n') if i ]
-
-def verify_checksum(u, ud, d):
-    """
-    verify the MD5 and SHA256 checksum for downloaded src
-
-    return value:
-        - True: checksum matched
-        - False: checksum unmatched
-
-    if checksum is missing in recipes file, "BB_STRICT_CHECKSUM" decide the return value.
-    if BB_STRICT_CHECKSUM = "1" then return false as unmatched, otherwise return true as
-    matched
-    """
-
-    if not ud.type in ["http", "https", "ftp", "ftps"]:
-        return
-
-    md5data = bb.utils.md5_file(ud.localpath)
-    sha256data = bb.utils.sha256_file(ud.localpath)
-
-    if (ud.md5_expected == None or ud.sha256_expected == None):
-        logger.warn('Missing SRC_URI checksum for %s, consider adding to the recipe:\n'
-                    'SRC_URI[%s] = "%s"\nSRC_URI[%s] = "%s"',
-                    ud.localpath, ud.md5_name, md5data,
-                    ud.sha256_name, sha256data)
-        if d.getVar("BB_STRICT_CHECKSUM", True) == "1":
-            raise FetchError("No checksum specified for %s." % u)
-        return
-
-    if (ud.md5_expected != md5data or ud.sha256_expected != sha256data):
-        logger.error('The checksums for "%s" did not match.\n'
-                     '  MD5: expected "%s", got "%s"\n'
-                     '  SHA256: expected "%s", got "%s"\n',
-                     ud.localpath, ud.md5_expected, md5data,
-                     ud.sha256_expected, sha256data)
-        raise FetchError("%s checksum mismatch." % u)
-
-def go(d, urls = None):
-    """
-    Fetch all urls
-    init must have previously been called
-    """
-    if not urls:
-        urls = d.getVar("SRC_URI", True).split()
-    urldata = init(urls, d, True)
-
-    for u in urls:
-        ud = urldata[u]
-        m = ud.method
-        localpath = ""
-
-        if not ud.localfile:
-            continue
-
-        lf = bb.utils.lockfile(ud.lockfile)
-
-        if m.try_premirror(u, ud, d):
-            # First try fetching uri, u, from PREMIRRORS
-            mirrors = mirror_from_string(d.getVar('PREMIRRORS', True))
-            localpath = try_mirrors(d, u, mirrors, False, m.forcefetch(u, ud, d))
-        elif os.path.exists(ud.localfile):
-            localpath = ud.localfile
-
-        # Need to re-test forcefetch() which will return true if our copy is too old
-        if m.forcefetch(u, ud, d) or not localpath:
-            # Next try fetching from the original uri, u
-            try:
-                m.go(u, ud, d)
-                localpath = ud.localpath
-            except FetchError:
-                # Remove any incomplete file
-                bb.utils.remove(ud.localpath)
-                # Finally, try fetching uri, u, from MIRRORS
-                mirrors = mirror_from_string(d.getVar('MIRRORS', True))
-                localpath = try_mirrors (d, u, mirrors)
-                if not localpath or not os.path.exists(localpath):
-                    raise FetchError("Unable to fetch URL %s from any source." % u)
-
-        ud.localpath = localpath
-
-        if os.path.exists(ud.md5):
-            # Touch the md5 file to show active use of the download
-            try:
-                os.utime(ud.md5, None)
-            except:
-                # Errors aren't fatal here
-                pass
-        else:
-            # Only check the checksums if we've not seen this item before
-            verify_checksum(u, ud, d)
-            Fetch.write_md5sum(u, ud, d)
-
-        bb.utils.unlockfile(lf)
-
-def checkstatus(d, urls = None):
-    """
-    Check all urls exist upstream
-    init must have previously been called
-    """
-    urldata = init([], d, True)
-
-    if not urls:
-        urls = urldata
-
-    for u in urls:
-        ud = urldata[u]
-        m = ud.method
-        logger.debug(1, "Testing URL %s", u)
-        # First try checking uri, u, from PREMIRRORS
-        mirrors = mirror_from_string(d.getVar('PREMIRRORS', True))
-        ret = try_mirrors(d, u, mirrors, True)
-        if not ret:
-            # Next try checking from the original uri, u
-            try:
-                ret = m.checkstatus(u, ud, d)
-            except:
-                # Finally, try checking uri, u, from MIRRORS
-                mirrors = mirror_from_string(d.getVar('MIRRORS', True))
-                ret = try_mirrors (d, u, mirrors, True)
-
-        if not ret:
-            raise FetchError("URL %s doesn't work" % u)
-
-def localpaths(d):
-    """
-    Return a list of the local filenames, assuming successful fetch
-    """
-    local = []
-    urldata = init([], d, True)
-
-    for u in urldata:
-        ud = urldata[u]
-        local.append(ud.localpath)
-
-    return local
-
-srcrev_internal_call = False
-
-def get_autorev(d):
-    return get_srcrev(d)
-
-def get_srcrev(d):
-    """
-    Return the version string for the current package
-    (usually to be used as PV)
-    Most packages usually only have one SCM so we just pass on the call.
-    In the multi SCM case, we build a value based on SRCREV_FORMAT which must
-    have been set.
-    """
-
-    #
-    # Ugly code alert. localpath in the fetchers will try to evaluate SRCREV which
-    # could translate into a call to here. If it does, we need to catch this
-    # and provide some way so it knows get_srcrev is active instead of being
-    # some number etc. hence the srcrev_internal_call tracking and the magic
-    # "SRCREVINACTION" return value.
-    #
-    # Neater solutions welcome!
-    #
-    if bb.fetch.srcrev_internal_call:
-        return "SRCREVINACTION"
-
-    scms = []
-
-    # Only call setup_localpath on URIs which supports_srcrev()
-    urldata = init(d.getVar('SRC_URI', True).split(), d, False)
-    for u in urldata:
-        ud = urldata[u]
-        if ud.method.supports_srcrev():
-            if not ud.setup:
-                ud.setup_localpath(d)
-            scms.append(u)
-
-    if len(scms) == 0:
-        logger.error("SRCREV was used yet no valid SCM was found in SRC_URI")
-        raise ParameterError
-
-    if d.getVar('BB_SRCREV_POLICY', True) != "cache":
-        d.setVar('__BB_DONT_CACHE', '1')
-
-    if len(scms) == 1:
-        return urldata[scms[0]].method.sortable_revision(scms[0], urldata[scms[0]], d)
-
-    #
-    # Mutiple SCMs are in SRC_URI so we resort to SRCREV_FORMAT
-    #
-    format = d.getVar('SRCREV_FORMAT', True)
-    if not format:
-        logger.error("The SRCREV_FORMAT variable must be set when multiple SCMs are used.")
-        raise ParameterError
-
-    for scm in scms:
-        if 'name' in urldata[scm].parm:
-            name = urldata[scm].parm["name"]
-            rev = urldata[scm].method.sortable_revision(scm, urldata[scm], d)
-            format = format.replace(name, rev)
-
-    return format
-
-def localpath(url, d, cache = True):
-    """
-    Called from the parser with cache=False since the cache isn't ready
-    at this point. Also called from classed in OE e.g. patch.bbclass
-    """
-    ud = init([url], d)
-    if ud[url].method:
-        return ud[url].localpath
-    return url
-
-def runfetchcmd(cmd, d, quiet = False):
-    """
-    Run cmd returning the command output
-    Raise an error if interrupted or cmd fails
-    Optionally echo command output to stdout
-    """
-
-    # Need to export PATH as binary could be in metadata paths
-    # rather than host provided
-    # Also include some other variables.
-    # FIXME: Should really include all export varaiables?
-    exportvars = ['PATH', 'GIT_PROXY_COMMAND', 'GIT_PROXY_HOST',
-                  'GIT_PROXY_PORT', 'GIT_CONFIG', 'http_proxy', 'ftp_proxy',
-                  'https_proxy', 'no_proxy', 'ALL_PROXY', 'all_proxy',
-                  'KRB5CCNAME', 'SSH_AUTH_SOCK', 'SSH_AGENT_PID', 'HOME']
-
-    for var in exportvars:
-        val = data.getVar(var, d, True)
-        if val:
-            cmd = 'export ' + var + '=\"%s\"; %s' % (val, cmd)
-
-    logger.debug(1, "Running %s", cmd)
-
-    # redirect stderr to stdout
-    stdout_handle = os.popen(cmd + " 2>&1", "r")
-    output = ""
-
-    while True:
-        line = stdout_handle.readline()
-        if not line:
-            break
-        if not quiet:
-            print(line, end=' ')
-        output += line
-
-    status = stdout_handle.close() or 0
-    signal = status >> 8
-    exitstatus = status & 0xff
-
-    if signal:
-        raise FetchError("Fetch command %s failed with signal %s, output:\n%s" % (cmd, signal, output))
-    elif status != 0:
-        raise FetchError("Fetch command %s failed with exit code %s, output:\n%s" % (cmd, status, output))
-
-    return output
-
-def try_mirrors(d, uri, mirrors, check = False, force = False):
-    """
-    Try to use a mirrored version of the sources.
-    This method will be automatically called before the fetchers go.
-
-    d Is a bb.data instance
-    uri is the original uri we're trying to download
-    mirrors is the list of mirrors we're going to try
-    """
-    fpath = os.path.join(data.getVar("DL_DIR", d, 1), os.path.basename(uri))
-    if not check and os.access(fpath, os.R_OK) and not force:
-        logger.debug(1, "%s already exists, skipping checkout.", fpath)
-        return fpath
-
-    ld = d.createCopy()
-    for (find, replace) in mirrors:
-        newuri = uri_replace(uri, find, replace, ld)
-        if newuri != uri:
-            try:
-                ud = FetchData(newuri, ld)
-            except bb.fetch.NoMethodError:
-                logger.debug(1, "No method for %s", uri)
-                continue
-
-            ud.setup_localpath(ld)
-
-            try:
-                if check:
-                    found = ud.method.checkstatus(newuri, ud, ld)
-                    if found:
-                        return found
-                else:
-                    ud.method.go(newuri, ud, ld)
-                    return ud.localpath
-            except (bb.fetch.MissingParameterError,
-                    bb.fetch.FetchError,
-                    bb.fetch.MD5SumError):
-                import sys
-                (type, value, traceback) = sys.exc_info()
-                logger.debug(2, "Mirror fetch failure: %s", value)
-                bb.utils.remove(ud.localpath)
-                continue
-    return None
-
-
-class FetchData(object):
-    """
-    A class which represents the fetcher state for a given URI.
-    """
-    def __init__(self, url, d):
-        self.localfile = ""
-        (self.type, self.host, self.path, self.user, self.pswd, self.parm) = decodeurl(data.expand(url, d))
-        self.date = Fetch.getSRCDate(self, d)
-        self.url = url
-        if not self.user and "user" in self.parm:
-            self.user = self.parm["user"]
-        if not self.pswd and "pswd" in self.parm:
-            self.pswd = self.parm["pswd"]
-        self.setup = False
-
-        if "name" in self.parm:
-            self.md5_name = "%s.md5sum" % self.parm["name"]
-            self.sha256_name = "%s.sha256sum" % self.parm["name"]
-        else:
-            self.md5_name = "md5sum"
-            self.sha256_name = "sha256sum"
-        self.md5_expected = d.getVarFlag("SRC_URI", self.md5_name)
-        self.sha256_expected = d.getVarFlag("SRC_URI", self.sha256_name)
-
-        for m in methods:
-            if m.supports(url, self, d):
-                self.method = m
-                return
-        raise NoMethodError("Missing implementation for url %s" % url)
-
-    def setup_localpath(self, d):
-        self.setup = True
-        if "localpath" in self.parm:
-            # if user sets localpath for file, use it instead.
-            self.localpath = self.parm["localpath"]
-            self.basename = os.path.basename(self.localpath)
-        else:
-            premirrors = d.getVar('PREMIRRORS', True)
-            local = ""
-            if premirrors and self.url:
-                aurl = self.url.split(";")[0]
-                mirrors = mirror_from_string(premirrors)
-                for (find, replace) in mirrors:
-                    if replace.startswith("file://"):
-                        path = aurl.split("://")[1]
-                        path = path.split(";")[0]
-                        local = replace.split("://")[1] + os.path.basename(path)
-                        if local == aurl or not os.path.exists(local) or os.path.isdir(local):
-                            local = ""
-                self.localpath = local
-            if not local:
-                try:
-                    bb.fetch.srcrev_internal_call = True
-                    self.localpath = self.method.localpath(self.url, self, d)
-                finally:
-                    bb.fetch.srcrev_internal_call = False
-                # We have to clear data's internal caches since the cached value of SRCREV is now wrong.
-                # Horrible...
-                bb.data.delVar("ISHOULDNEVEREXIST", d)
-
-        if self.localpath is not None:
-            # Note: These files should always be in DL_DIR whereas localpath may not be.
-            basepath = bb.data.expand("${DL_DIR}/%s" % os.path.basename(self.localpath), d)
-            self.md5 = basepath + '.md5'
-            self.lockfile = basepath + '.lock'
-
-
-class Fetch(object):
-    """Base class for 'fetch'ing data"""
-
-    def __init__(self, urls = []):
-        self.urls = []
-
-    def supports(self, url, urldata, d):
-        """
-        Check to see if this fetch class supports a given url.
-        """
-        return 0
-
-    def localpath(self, url, urldata, d):
-        """
-        Return the local filename of a given url assuming a successful fetch.
-        Can also setup variables in urldata for use in go (saving code duplication
-        and duplicate code execution)
-        """
-        return url
-    def _strip_leading_slashes(self, relpath):
-        """
-        Remove leading slash as os.path.join can't cope
-        """
-        while os.path.isabs(relpath):
-            relpath = relpath[1:]
-        return relpath
-
-    def setUrls(self, urls):
-        self.__urls = urls
-
-    def getUrls(self):
-        return self.__urls
-
-    urls = property(getUrls, setUrls, None, "Urls property")
-
-    def forcefetch(self, url, urldata, d):
-        """
-        Force a fetch, even if localpath exists?
-        """
-        return False
-
-    def supports_srcrev(self):
-        """
-        The fetcher supports auto source revisions (SRCREV)
-        """
-        return False
-
-    def go(self, url, urldata, d):
-        """
-        Fetch urls
-        Assumes localpath was called first
-        """
-        raise NoMethodError("Missing implementation for url")
-
-    def try_premirror(self, url, urldata, d):
-        """
-        Should premirrors be used?
-        """
-        if urldata.method.forcefetch(url, urldata, d):
-            return True
-        elif os.path.exists(urldata.md5) and os.path.exists(urldata.localfile):
-            return False
-        else:
-            return True
-
-    def checkstatus(self, url, urldata, d):
-        """
-        Check the status of a URL
-        Assumes localpath was called first
-        """
-        logger.info("URL %s could not be checked for status since no method exists.", url)
-        return True
-
-    def getSRCDate(urldata, d):
-        """
-        Return the SRC Date for the component
-
-        d the bb.data module
-        """
-        if "srcdate" in urldata.parm:
-            return urldata.parm['srcdate']
-
-        pn = data.getVar("PN", d, 1)
-
-        if pn:
-            return data.getVar("SRCDATE_%s" % pn, d, 1) or data.getVar("CVSDATE_%s" % pn, d, 1) or data.getVar("SRCDATE", d, 1) or data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
-
-        return data.getVar("SRCDATE", d, 1) or data.getVar("CVSDATE", d, 1) or data.getVar("DATE", d, 1)
-    getSRCDate = staticmethod(getSRCDate)
-
-    def srcrev_internal_helper(ud, d):
-        """
-        Return:
-            a) a source revision if specified
-            b) True if auto srcrev is in action
-            c) False otherwise
-        """
-
-        if 'rev' in ud.parm:
-            return ud.parm['rev']
-
-        if 'tag' in ud.parm:
-            return ud.parm['tag']
-
-        rev = None
-        if 'name' in ud.parm:
-            pn = data.getVar("PN", d, 1)
-            rev = data.getVar("SRCREV_%s_pn-%s" % (ud.parm['name'], pn), d, 1)
-            if not rev:
-                rev = data.getVar("SRCREV_pn-%s_%s" % (pn, ud.parm['name']), d, 1)
-            if not rev:
-                rev = data.getVar("SRCREV_%s" % (ud.parm['name']), d, 1)
-        if not rev:
-            rev = data.getVar("SRCREV", d, 1)
-        if rev == "INVALID":
-            raise InvalidSRCREV("Please set SRCREV to a valid value")
-        if not rev:
-            return False
-        if rev == "SRCREVINACTION":
-            return True
-        return rev
-
-    srcrev_internal_helper = staticmethod(srcrev_internal_helper)
-
-    def localcount_internal_helper(ud, d):
-        """
-        Return:
-            a) a locked localcount if specified
-            b) None otherwise
-        """
-
-        localcount = None
-        if 'name' in ud.parm:
-            pn = data.getVar("PN", d, 1)
-            localcount = data.getVar("LOCALCOUNT_" + ud.parm['name'], d, 1)
-        if not localcount:
-            localcount = data.getVar("LOCALCOUNT", d, 1)
-        return localcount
-
-    localcount_internal_helper = staticmethod(localcount_internal_helper)
-
-    def verify_md5sum(ud, got_sum):
-        """
-        Verify the md5sum we wanted with the one we got
-        """
-        wanted_sum = ud.parm.get('md5sum')
-        if not wanted_sum:
-            return True
-
-        return wanted_sum == got_sum
-    verify_md5sum = staticmethod(verify_md5sum)
-
-    def write_md5sum(url, ud, d):
-        md5data = bb.utils.md5_file(ud.localpath)
-        # verify the md5sum
-        if not Fetch.verify_md5sum(ud, md5data):
-            raise MD5SumError(url)
-
-        md5out = file(ud.md5, 'w')
-        md5out.write(md5data)
-        md5out.close()
-    write_md5sum = staticmethod(write_md5sum)
-
-    def latest_revision(self, url, ud, d):
-        """
-        Look in the cache for the latest revision, if not present ask the SCM.
-        """
-        if not hasattr(self, "_latest_revision"):
-            raise ParameterError
-
-        revs = persist_data.persist('BB_URI_HEADREVS', d)
-        key = self.generate_revision_key(url, ud, d)
-        try:
-            return revs[key]
-        except KeyError:
-            revs[key] = rev = self._latest_revision(url, ud, d)
-            return rev
-
-    def sortable_revision(self, url, ud, d):
-        """
-
-        """
-        if hasattr(self, "_sortable_revision"):
-            return self._sortable_revision(url, ud, d)
-
-        localcounts = persist_data.persist('BB_URI_LOCALCOUNT', d)
-        key = self.generate_revision_key(url, ud, d)
-
-        latest_rev = self._build_revision(url, ud, d)
-        last_rev = localcounts.get(key + '_rev')
-        uselocalcount = d.getVar("BB_LOCALCOUNT_OVERRIDE", True) or False
-        count = None
-        if uselocalcount:
-            count = Fetch.localcount_internal_helper(ud, d)
-        if count is None:
-            count = localcounts.get(key + '_count')
-
-        if last_rev == latest_rev:
-            return str(count + "+" + latest_rev)
-
-        buildindex_provided = hasattr(self, "_sortable_buildindex")
-        if buildindex_provided:
-            count = self._sortable_buildindex(url, ud, d, latest_rev)
-
-        if count is None:
-            count = "0"
-        elif uselocalcount or buildindex_provided:
-            count = str(count)
-        else:
-            count = str(int(count) + 1)
-
-        localcounts[key + '_rev'] = latest_rev
-        localcounts[key + '_count'] = count
-
-        return str(count + "+" + latest_rev)
-
-    def generate_revision_key(self, url, ud, d):
-        key = self._revision_key(url, ud, d)
-        return "%s-%s" % (key, d.getVar("PN", True) or "")
-
-from . import cvs
-from . import git
-from . import local
-from . import svn
-from . import wget
-from . import svk
-from . import ssh
-from . import perforce
-from . import bzr
-from . import hg
-from . import osc
-from . import repo
-
-methods.append(local.Local())
-methods.append(wget.Wget())
-methods.append(svn.Svn())
-methods.append(git.Git())
-methods.append(cvs.Cvs())
-methods.append(svk.Svk())
-methods.append(ssh.SSH())
-methods.append(perforce.Perforce())
-methods.append(bzr.Bzr())
-methods.append(hg.Hg())
-methods.append(osc.Osc())
-methods.append(repo.Repo())