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authorRichard Purdie <richard@openedhand.com>2008-09-30 15:08:33 +0000
committerRichard Purdie <richard@openedhand.com>2008-09-30 15:08:33 +0000
commitc30eddb243e7e65f67f656e62848a033cf6f2e5c (patch)
tree110dd95788b76f55d31cb8d30aac2de8400b6f4a /bitbake-dev/lib/bb/providers.py
parent5ef0510474004eeb2ae8a99b64e2febb1920e077 (diff)
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Add bitbake-dev to allow ease of testing and development of bitbake trunk
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5337 311d38ba-8fff-0310-9ca6-ca027cbcb966
Diffstat (limited to 'bitbake-dev/lib/bb/providers.py')
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diff --git a/bitbake-dev/lib/bb/providers.py b/bitbake-dev/lib/bb/providers.py
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+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2003, 2004 Chris Larson
+# Copyright (C) 2003, 2004 Phil Blundell
+# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
+# Copyright (C) 2005 Holger Hans Peter Freyther
+# Copyright (C) 2005 ROAD GmbH
+# Copyright (C) 2006 Richard Purdie
+#
+# 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.
+
+import os, re
+from bb import data, utils
+import bb
+
+class NoProvider(Exception):
+ """Exception raised when no provider of a build dependency can be found"""
+
+class NoRProvider(Exception):
+ """Exception raised when no provider of a runtime dependency can be found"""
+
+
+def sortPriorities(pn, dataCache, pkg_pn = None):
+ """
+ Reorder pkg_pn by file priority and default preference
+ """
+
+ if not pkg_pn:
+ pkg_pn = dataCache.pkg_pn
+
+ files = pkg_pn[pn]
+ priorities = {}
+ for f in files:
+ priority = dataCache.bbfile_priority[f]
+ preference = dataCache.pkg_dp[f]
+ if priority not in priorities:
+ priorities[priority] = {}
+ if preference not in priorities[priority]:
+ priorities[priority][preference] = []
+ priorities[priority][preference].append(f)
+ pri_list = priorities.keys()
+ pri_list.sort(lambda a, b: a - b)
+ tmp_pn = []
+ for pri in pri_list:
+ pref_list = priorities[pri].keys()
+ pref_list.sort(lambda a, b: b - a)
+ tmp_pref = []
+ for pref in pref_list:
+ tmp_pref.extend(priorities[pri][pref])
+ tmp_pn = [tmp_pref] + tmp_pn
+
+ return tmp_pn
+
+
+def findPreferredProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
+ """
+ Find the first provider in pkg_pn with a PREFERRED_VERSION set.
+ """
+
+ preferred_file = None
+ preferred_ver = None
+
+ localdata = data.createCopy(cfgData)
+ bb.data.setVar('OVERRIDES', "pn-%s:%s:%s" % (pn, pn, data.getVar('OVERRIDES', localdata)), localdata)
+ bb.data.update_data(localdata)
+
+ preferred_v = bb.data.getVar('PREFERRED_VERSION_%s' % pn, localdata, True)
+ if preferred_v:
+ m = re.match('(\d+:)*(.*)(_.*)*', preferred_v)
+ if m:
+ if m.group(1):
+ preferred_e = int(m.group(1)[:-1])
+ else:
+ preferred_e = None
+ preferred_v = m.group(2)
+ if m.group(3):
+ preferred_r = m.group(3)[1:]
+ else:
+ preferred_r = None
+ else:
+ preferred_e = None
+ preferred_r = None
+
+ for file_set in pkg_pn:
+ for f in file_set:
+ pe,pv,pr = dataCache.pkg_pepvpr[f]
+ if preferred_v == pv and (preferred_r == pr or preferred_r == None) and (preferred_e == pe or preferred_e == None):
+ preferred_file = f
+ preferred_ver = (pe, pv, pr)
+ break
+ if preferred_file:
+ break;
+ if preferred_r:
+ pv_str = '%s-%s' % (preferred_v, preferred_r)
+ else:
+ pv_str = preferred_v
+ if not (preferred_e is None):
+ pv_str = '%s:%s' % (preferred_e, pv_str)
+ itemstr = ""
+ if item:
+ itemstr = " (for item %s)" % item
+ if preferred_file is None:
+ bb.msg.note(1, bb.msg.domain.Provider, "preferred version %s of %s not available%s" % (pv_str, pn, itemstr))
+ else:
+ bb.msg.debug(1, bb.msg.domain.Provider, "selecting %s as PREFERRED_VERSION %s of package %s%s" % (preferred_file, pv_str, pn, itemstr))
+
+ return (preferred_ver, preferred_file)
+
+
+def findLatestProvider(pn, cfgData, dataCache, file_set):
+ """
+ Return the highest version of the providers in file_set.
+ Take default preferences into account.
+ """
+ latest = None
+ latest_p = 0
+ latest_f = None
+ for file_name in file_set:
+ pe,pv,pr = dataCache.pkg_pepvpr[file_name]
+ dp = dataCache.pkg_dp[file_name]
+
+ if (latest is None) or ((latest_p == dp) and (utils.vercmp(latest, (pe, pv, pr)) < 0)) or (dp > latest_p):
+ latest = (pe, pv, pr)
+ latest_f = file_name
+ latest_p = dp
+
+ return (latest, latest_f)
+
+
+def findBestProvider(pn, cfgData, dataCache, pkg_pn = None, item = None):
+ """
+ If there is a PREFERRED_VERSION, find the highest-priority bbfile
+ providing that version. If not, find the latest version provided by
+ an bbfile in the highest-priority set.
+ """
+
+ sortpkg_pn = sortPriorities(pn, dataCache, pkg_pn)
+ # Find the highest priority provider with a PREFERRED_VERSION set
+ (preferred_ver, preferred_file) = findPreferredProvider(pn, cfgData, dataCache, sortpkg_pn, item)
+ # Find the latest version of the highest priority provider
+ (latest, latest_f) = findLatestProvider(pn, cfgData, dataCache, sortpkg_pn[0])
+
+ if preferred_file is None:
+ preferred_file = latest_f
+ preferred_ver = latest
+
+ return (latest, latest_f, preferred_ver, preferred_file)
+
+
+def _filterProviders(providers, item, cfgData, dataCache):
+ """
+ Take a list of providers and filter/reorder according to the
+ environment variables and previous build results
+ """
+ eligible = []
+ preferred_versions = {}
+ sortpkg_pn = {}
+
+ # The order of providers depends on the order of the files on the disk
+ # up to here. Sort pkg_pn to make dependency issues reproducible rather
+ # than effectively random.
+ providers.sort()
+
+ # Collate providers by PN
+ pkg_pn = {}
+ for p in providers:
+ pn = dataCache.pkg_fn[p]
+ if pn not in pkg_pn:
+ pkg_pn[pn] = []
+ pkg_pn[pn].append(p)
+
+ bb.msg.debug(1, bb.msg.domain.Provider, "providers for %s are: %s" % (item, pkg_pn.keys()))
+
+ # First add PREFERRED_VERSIONS
+ for pn in pkg_pn.keys():
+ sortpkg_pn[pn] = sortPriorities(pn, dataCache, pkg_pn)
+ preferred_versions[pn] = findPreferredProvider(pn, cfgData, dataCache, sortpkg_pn[pn], item)
+ if preferred_versions[pn][1]:
+ eligible.append(preferred_versions[pn][1])
+
+ # Now add latest verisons
+ for pn in pkg_pn.keys():
+ if pn in preferred_versions and preferred_versions[pn][1]:
+ continue
+ preferred_versions[pn] = findLatestProvider(pn, cfgData, dataCache, sortpkg_pn[pn][0])
+ eligible.append(preferred_versions[pn][1])
+
+ if len(eligible) == 0:
+ bb.msg.error(bb.msg.domain.Provider, "no eligible providers for %s" % item)
+ return 0
+
+ # If pn == item, give it a slight default preference
+ # This means PREFERRED_PROVIDER_foobar defaults to foobar if available
+ for p in providers:
+ pn = dataCache.pkg_fn[p]
+ if pn != item:
+ continue
+ (newvers, fn) = preferred_versions[pn]
+ if not fn in eligible:
+ continue
+ eligible.remove(fn)
+ eligible = [fn] + eligible
+
+ return eligible
+
+
+def filterProviders(providers, item, cfgData, dataCache):
+ """
+ Take a list of providers and filter/reorder according to the
+ environment variables and previous build results
+ Takes a "normal" target item
+ """
+
+ eligible = _filterProviders(providers, item, cfgData, dataCache)
+
+ prefervar = bb.data.getVar('PREFERRED_PROVIDER_%s' % item, cfgData, 1)
+ if prefervar:
+ dataCache.preferred[item] = prefervar
+
+ foundUnique = False
+ if item in dataCache.preferred:
+ for p in eligible:
+ pn = dataCache.pkg_fn[p]
+ if dataCache.preferred[item] == pn:
+ bb.msg.note(2, bb.msg.domain.Provider, "selecting %s to satisfy %s due to PREFERRED_PROVIDERS" % (pn, item))
+ eligible.remove(p)
+ eligible = [p] + eligible
+ foundUnique = True
+ break
+
+ bb.msg.debug(1, bb.msg.domain.Provider, "sorted providers for %s are: %s" % (item, eligible))
+
+ return eligible, foundUnique
+
+def filterProvidersRunTime(providers, item, cfgData, dataCache):
+ """
+ Take a list of providers and filter/reorder according to the
+ environment variables and previous build results
+ Takes a "runtime" target item
+ """
+
+ eligible = _filterProviders(providers, item, cfgData, dataCache)
+
+ # Should use dataCache.preferred here?
+ preferred = []
+ preferred_vars = []
+ for p in eligible:
+ pn = dataCache.pkg_fn[p]
+ provides = dataCache.pn_provides[pn]
+ for provide in provides:
+ prefervar = bb.data.getVar('PREFERRED_PROVIDER_%s' % provide, cfgData, 1)
+ if prefervar == pn:
+ var = "PREFERRED_PROVIDERS_%s = %s" % (provide, prefervar)
+ bb.msg.note(2, bb.msg.domain.Provider, "selecting %s to satisfy runtime %s due to %s" % (pn, item, var))
+ preferred_vars.append(var)
+ eligible.remove(p)
+ eligible = [p] + eligible
+ preferred.append(p)
+ break
+
+ numberPreferred = len(preferred)
+
+ if numberPreferred > 1:
+ bb.msg.error(bb.msg.domain.Provider, "Conflicting PREFERRED_PROVIDERS entries were found which resulted in an attempt to select multiple providers (%s) for runtime dependecy %s\nThe entries resulting in this conflict were: %s" % (preferred, item, preferred_vars))
+
+ bb.msg.debug(1, bb.msg.domain.Provider, "sorted providers for %s are: %s" % (item, eligible))
+
+ return eligible, numberPreferred
+
+def getRuntimeProviders(dataCache, rdepend):
+ """
+ Return any providers of runtime dependency
+ """
+ rproviders = []
+
+ if rdepend in dataCache.rproviders:
+ rproviders += dataCache.rproviders[rdepend]
+
+ if rdepend in dataCache.packages:
+ rproviders += dataCache.packages[rdepend]
+
+ if rproviders:
+ return rproviders
+
+ # Only search dynamic packages if we can't find anything in other variables
+ for pattern in dataCache.packages_dynamic:
+ regexp = re.compile(pattern)
+ if regexp.match(rdepend):
+ rproviders += dataCache.packages_dynamic[pattern]
+
+ return rproviders