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# This file is part of Buildbot. Buildbot 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, version 2.
#
# 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.
#
# Copyright Buildbot Team Members
import xml.dom.minidom
import xml.parsers.expat
from twisted.python import log
from twisted.internet import defer
from buildbot.process import buildstep
from buildbot.steps.source.base import Source
from buildbot.interfaces import BuildSlaveTooOldError
from buildbot.config import ConfigErrors
class SVN(Source):
"""I perform Subversion checkout/update operations."""
name = 'svn'
renderables = [ 'repourl' ]
possible_modes = ('incremental', 'full')
possible_methods = ('clean', 'fresh', 'clobber', 'copy', 'export', None)
def __init__(self, repourl=None, mode='incremental',
method=None, username=None,
password=None, extra_args=None, keep_on_purge=None,
depth=None, preferLastChangedRev=False, **kwargs):
self.repourl = repourl
self.username = username
self.password = password
self.extra_args = extra_args
self.keep_on_purge = keep_on_purge or []
self.depth = depth
self.method = method
self.mode = mode
self.preferLastChangedRev = preferLastChangedRev
Source.__init__(self, **kwargs)
errors = []
if self.mode not in self.possible_modes:
errors.append("mode %s is not one of %s" % (self.mode, self.possible_modes))
if self.method not in self.possible_methods:
errors.append("method %s is not one of %s" % (self.method, self.possible_methods))
if repourl is None:
errors.append("you must provide repourl")
if errors:
raise ConfigErrors(errors)
def startVC(self, branch, revision, patch):
self.revision = revision
self.method = self._getMethod()
self.stdio_log = self.addLogForRemoteCommands("stdio")
d = self.checkSvn()
def checkInstall(svnInstalled):
if not svnInstalled:
raise BuildSlaveTooOldError("SVN is not installed on slave")
return 0
d.addCallback(checkInstall)
if self.mode == 'full':
d.addCallback(self.full)
elif self.mode == 'incremental':
d.addCallback(self.incremental)
d.addCallback(self.parseGotRevision)
d.addCallback(self.finish)
d.addErrback(self.failed)
return d
@defer.inlineCallbacks
def full(self, _):
if self.method == 'clobber':
yield self.clobber()
return
elif self.method in ['copy', 'export']:
yield self.copy()
return
updatable = yield self._sourcedirIsUpdatable()
if not updatable:
# blow away the old (un-updatable) directory
yield self.runRmdir(self.workdir)
# then do a checkout
checkout_cmd = ['checkout', self.repourl, '.']
if self.revision:
checkout_cmd.extend(["--revision", str(self.revision)])
yield self._dovccmd(checkout_cmd)
elif self.method == 'clean':
yield self.clean()
elif self.method == 'fresh':
yield self.fresh()
@defer.inlineCallbacks
def incremental(self, _):
updatable = yield self._sourcedirIsUpdatable()
if not updatable:
# blow away the old (un-updatable) directory
yield self.runRmdir(self.workdir)
# and plan to do a checkout
command = ['checkout', self.repourl, '.']
else:
# otherwise, do an update
command = ['update']
if self.revision:
command.extend(['--revision', str(self.revision)])
yield self._dovccmd(command)
@defer.inlineCallbacks
def clobber(self):
yield self.runRmdir(self.workdir)
checkout_cmd = ['checkout', self.repourl, '.']
if self.revision:
checkout_cmd.extend(["--revision", str(self.revision)])
yield self._dovccmd(checkout_cmd)
def fresh(self):
d = self.purge(True)
cmd = ['update']
if self.revision:
cmd.extend(['--revision', str(self.revision)])
d.addCallback(lambda _: self._dovccmd(cmd))
return d
def clean(self):
d = self.purge(False)
cmd = ['update']
if self.revision:
cmd.extend(['--revision', str(self.revision)])
d.addCallback(lambda _: self._dovccmd(cmd))
return d
@defer.inlineCallbacks
def copy(self):
yield self.runRmdir(self.workdir)
# temporarily set workdir = 'source' and do an incremental checkout
try:
old_workdir = self.workdir
self.workdir = 'source'
yield self.incremental(None)
except: # finally doesn't work in python-2.4
self.workdir = old_workdir
raise
self.workdir = old_workdir
# if we're copying, copy; otherwise, export from source to build
if self.method == 'copy':
cmd = buildstep.RemoteCommand('cpdir',
{ 'fromdir': 'source', 'todir':self.workdir,
'logEnviron': self.logEnviron })
else:
export_cmd = ['svn', 'export']
if self.revision:
export_cmd.extend(["--revision", str(self.revision)])
export_cmd.extend(['source', self.workdir])
cmd = buildstep.RemoteShellCommand('', export_cmd,
env=self.env, logEnviron=self.logEnviron, timeout=self.timeout)
cmd.useLog(self.stdio_log, False)
yield self.runCommand(cmd)
if cmd.didFail():
raise buildstep.BuildStepFailed()
def finish(self, res):
d = defer.succeed(res)
def _gotResults(results):
self.setStatus(self.cmd, results)
return results
d.addCallback(_gotResults)
d.addCallbacks(self.finished, self.checkDisconnect)
return d
def _dovccmd(self, command, collectStdout=False):
assert command, "No command specified"
command.extend(['--non-interactive', '--no-auth-cache'])
if self.username:
command.extend(['--username', self.username])
if self.password:
command.extend(['--password', self.password])
if self.depth:
command.extend(['--depth', self.depth])
if self.extra_args:
command.extend(self.extra_args)
cmd = buildstep.RemoteShellCommand(self.workdir, ['svn'] + command,
env=self.env,
logEnviron=self.logEnviron,
timeout=self.timeout,
collectStdout=collectStdout)
cmd.useLog(self.stdio_log, False)
log.msg("Starting SVN command : svn %s" % (" ".join(command), ))
d = self.runCommand(cmd)
def evaluateCommand(cmd):
if cmd.didFail():
log.msg("Source step failed while running command %s" % cmd)
raise buildstep.BuildStepFailed()
if collectStdout:
return cmd.stdout
else:
return cmd.rc
d.addCallback(lambda _: evaluateCommand(cmd))
return d
def _getMethod(self):
if self.method is not None and self.mode != 'incremental':
return self.method
elif self.mode == 'incremental':
return None
elif self.method is None and self.mode == 'full':
return 'fresh'
@defer.inlineCallbacks
def _sourcedirIsUpdatable(self):
# first, perform a stat to ensure that this is really an svn directory
res = yield self.pathExists(self.build.path_module.join(self.workdir, '.svn'))
if not res:
defer.returnValue(False)
return
# then run 'svn info --xml' to check that the URL matches our repourl
stdout = yield self._dovccmd(['info', '--xml'], collectStdout=True)
try:
stdout_xml = xml.dom.minidom.parseString(stdout)
extractedurl = stdout_xml.getElementsByTagName('url')[0].firstChild.nodeValue
except xml.parsers.expat.ExpatError:
msg = "Corrupted xml, aborting step"
self.stdio_log.addHeader(msg)
raise buildstep.BuildStepFailed()
defer.returnValue(extractedurl == self.repourl)
return
@defer.inlineCallbacks
def parseGotRevision(self, _):
# if this was a full/export, then we need to check svnversion in the
# *source* directory, not the build directory
svnversion_dir = self.workdir
if self.mode == 'full' and self.method == 'export':
svnversion_dir = 'source'
cmd = buildstep.RemoteShellCommand(svnversion_dir, ['svn', 'info', '--xml'],
env=self.env,
logEnviron=self.logEnviron,
timeout=self.timeout,
collectStdout=True)
cmd.useLog(self.stdio_log, False)
yield self.runCommand(cmd)
stdout = cmd.stdout
try:
stdout_xml = xml.dom.minidom.parseString(stdout)
except xml.parsers.expat.ExpatError:
msg = "Corrupted xml, aborting step"
self.stdio_log.addHeader(msg)
raise buildstep.BuildStepFailed()
revision = None
if self.preferLastChangedRev:
try:
revision = stdout_xml.getElementsByTagName('commit')[0].attributes['revision'].value
except (KeyError, IndexError):
msg =("SVN.parseGotRevision unable to detect Last Changed Rev in"
" output of svn info")
log.msg(msg)
# fall through and try to get 'Revision' instead
if revision is None:
try:
revision = stdout_xml.getElementsByTagName('entry')[0].attributes['revision'].value
except (KeyError, IndexError):
msg =("SVN.parseGotRevision unable to detect revision in"
" output of svn info")
log.msg(msg)
raise buildstep.BuildStepFailed()
msg = "Got SVN revision %s" % (revision, )
self.stdio_log.addHeader(msg)
self.updateSourceProperty('got_revision', revision)
defer.returnValue(cmd.rc)
def purge(self, ignore_ignores):
"""Delete everything that shown up on status."""
command = ['status', '--xml']
if ignore_ignores:
command.append('--no-ignore')
d = self._dovccmd(command, collectStdout=True)
def parseAndRemove(stdout):
files = []
for filename in self.getUnversionedFiles(stdout, self.keep_on_purge):
filename = self.workdir+'/'+str(filename)
files.append(filename)
if len(files) == 0:
d = defer.succeed(0)
else:
if self.slaveVersionIsOlderThan('rmdir', '2.14'):
d = self.removeFiles(files)
else:
d = self.runRmdir(files, abandonOnFailure=False)
return d
d.addCallback(parseAndRemove)
def evaluateCommand(rc):
if rc != 0:
log.msg("Failed removing files")
raise buildstep.BuildStepFailed()
return rc
d.addCallback(evaluateCommand)
return d
@staticmethod
def getUnversionedFiles(xmlStr, keep_on_purge):
try:
result_xml = xml.dom.minidom.parseString(xmlStr)
except xml.parsers.expat.ExpatError:
log.err("Corrupted xml, aborting step")
raise buildstep.BuildStepFailed()
for entry in result_xml.getElementsByTagName('entry'):
(wc_status,) = entry.getElementsByTagName('wc-status')
if wc_status.getAttribute('item') == 'external':
continue
if wc_status.getAttribute('item') == 'missing':
continue
filename = entry.getAttribute('path')
if filename in keep_on_purge or filename == '':
continue
yield filename
@defer.inlineCallbacks
def removeFiles(self, files):
for filename in files:
res = yield self.runRmdir(filename, abandonOnFailure=False)
if res:
defer.returnValue(res)
return
defer.returnValue(0)
def checkSvn(self):
cmd = buildstep.RemoteShellCommand(self.workdir, ['svn', '--version'],
env=self.env,
logEnviron=self.logEnviron,
timeout=self.timeout)
cmd.useLog(self.stdio_log, False)
d = self.runCommand(cmd)
def evaluate(cmd):
if cmd.rc != 0:
return False
return True
d.addCallback(lambda _: evaluate(cmd))
return d
def computeSourceRevision(self, changes):
if not changes or None in [c.revision for c in changes]:
return None
lastChange = max([int(c.revision) for c in changes])
return lastChange
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