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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 os, re
from twisted.python import log, runtime
from buildslave.commands.base import SourceBaseCommand, AbandonChain
from buildslave import runprocess
from buildslave.util import remove_userpassword
class Mercurial(SourceBaseCommand):
"""Mercurial specific VC operation. In addition to the arguments
handled by SourceBaseCommand, this command reads the following keys:
['repourl'] (required): the Mercurial repository string
['clobberOnBranchChange']: Document me. See ticket #462.
"""
header = "mercurial operation"
def setup(self, args):
SourceBaseCommand.setup(self, args)
self.repourl = args['repourl']
self.clobberOnBranchChange = args.get('clobberOnBranchChange', True)
self.sourcedata = "%s\n" % self.repourl
self.branchType = args.get('branchType', 'dirname')
self.stdout = ""
self.stderr = ""
self.clobbercount = 0 # n times we've clobbered
def sourcedirIsUpdateable(self):
return os.path.isdir(os.path.join(self.builder.basedir,
self.srcdir, ".hg"))
def doVCUpdate(self):
hg = self.getCommand('hg')
d = os.path.join(self.builder.basedir, self.srcdir)
command = [hg, 'pull', '--verbose', self.repourl]
c = runprocess.RunProcess(self.builder, command, d,
sendRC=False, timeout=self.timeout,
maxTime=self.maxTime, keepStdout=True,
logEnviron=self.logEnviron, usePTY=False)
self.command = c
d = c.start()
d.addCallback(self._handleEmptyUpdate)
d.addCallback(self._update)
return d
def _handleEmptyUpdate(self, res):
if type(res) is int and res == 1:
if self.command.stdout.find("no changes found") != -1:
# 'hg pull', when it doesn't have anything to do, exits with
# rc=1, and there appears to be no way to shut this off. It
# emits a distinctive message to stdout, though. So catch
# this and pretend that it completed successfully.
return 0
return res
def doVCFull(self):
hg = self.getCommand('hg')
command = [hg, 'clone', '--verbose', '--noupdate']
# if got revision, clobbering and in dirname, only clone to specific revision
# (otherwise, do full clone to re-use .hg dir for subsequent builds)
if self.args.get('revision') and self.mode == 'clobber' and self.branchType == 'dirname':
command.extend(['--rev', self.args.get('revision')])
command.extend([self.repourl, self.srcdir])
c = runprocess.RunProcess(self.builder, command, self.builder.basedir,
sendRC=False, timeout=self.timeout,
maxTime=self.maxTime, logEnviron=self.logEnviron,
usePTY=False)
self.command = c
cmd1 = c.start()
cmd1.addCallback(self._update)
return cmd1
def _clobber(self, dummy, dirname):
self.clobbercount += 1
if self.clobbercount > 3:
raise Exception, "Too many clobber attempts. Aborting step"
def _vcfull(res):
return self.doVCFull()
c = self.doClobber(dummy, dirname)
c.addCallback(_vcfull)
return c
def _purge(self, dummy, dirname):
hg = self.getCommand('hg')
d = os.path.join(self.builder.basedir, self.srcdir)
purge = [hg, 'purge', '--all']
purgeCmd = runprocess.RunProcess(self.builder, purge, d,
keepStdout=True, keepStderr=True,
logEnviron=self.logEnviron, usePTY=False)
def _clobber(res):
if res != 0:
# purge failed, we need to switch to a classic clobber
msg = "'hg purge' failed: %s\n%s. Clobbering." % (purgeCmd.stdout, purgeCmd.stderr)
self.sendStatus({'header': msg + "\n"})
log.msg(msg)
return self._clobber(dummy, dirname)
# Purge was a success, then we need to update
return res
p = purgeCmd.start()
p.addCallback(_clobber)
return p
def _update(self, res):
hg = self.getCommand('hg')
if res != 0:
return res
# compare current branch to update
self.update_branch = self.args.get('branch', 'default')
d = os.path.join(self.builder.basedir, self.srcdir)
parentscmd = [hg, 'identify', '--num', '--branch']
cmd = runprocess.RunProcess(self.builder, parentscmd, d,
sendRC=False, timeout=self.timeout, keepStdout=True,
keepStderr=True, logEnviron=self.logEnviron,
usePTY=False)
self.clobber = None
def _parseIdentify(res):
if res != 0:
msg = "'hg identify' failed."
self.sendStatus({'header': msg + "\n"})
log.msg(msg)
raise AbandonChain(-1)
log.msg('Output: %s' % cmd.stdout)
match = re.search(r'^(.+) (.+)$', cmd.stdout)
if not match:
msg = "'hg identify' did not give a recognizable output"
self.sendStatus({'header': msg + "\n"})
log.msg(msg)
raise AbandonChain(-1)
rev = match.group(1)
current_branch = match.group(2)
if rev == '-1':
msg = "Fresh hg repo, don't worry about in-repo branch name"
log.msg(msg)
elif self.sourcedirIsPatched():
self.clobber = self._purge
elif self.update_branch != current_branch:
msg = "Working dir is on in-repo branch '%s' and build needs '%s'." % (current_branch, self.update_branch)
if self.clobberOnBranchChange:
msg += ' Cloberring.'
else:
msg += ' Updating.'
self.sendStatus({'header': msg + "\n"})
log.msg(msg)
# Clobbers only if clobberOnBranchChange is set
if self.clobberOnBranchChange:
self.clobber = self._purge
else:
msg = "Working dir on same in-repo branch as build (%s)." % (current_branch)
log.msg(msg)
return 0
def _checkRepoURL(res):
hg = self.getCommand('hg')
parentscmd = [hg, 'paths', 'default']
cmd2 = runprocess.RunProcess(self.builder, parentscmd, d,
keepStdout=True, keepStderr=True, usePTY=False,
timeout=self.timeout, sendRC=False,
logEnviron=self.logEnviron)
def _parseRepoURL(res):
if res == 1:
if "not found!" == cmd2.stderr.strip():
msg = "hg default path not set. Not checking repo url for clobber test"
log.msg(msg)
return 0
else:
msg = "'hg paths default' failed."
log.msg(msg)
return 1
oldurl = cmd2.stdout.strip()
log.msg("Repo cloned from: '%s'" % oldurl)
if runtime.platformType == 'win32':
oldurl = oldurl.lower().replace('\\', '/')
repourl = self.repourl.lower().replace('\\', '/')
else:
repourl = self.repourl
if repourl.startswith('file://'):
repourl = repourl.split('file://')[1]
if oldurl.startswith('file://'):
oldurl = oldurl.split('file://')[1]
oldurl = remove_userpassword(oldurl)
repourl = remove_userpassword(repourl)
if oldurl.rstrip('/') != repourl.rstrip('/'):
self.clobber = self._clobber
msg = "RepoURL changed from '%s' in wc to '%s' in update. Clobbering" % (oldurl, repourl)
log.msg(msg)
return 0
c = cmd2.start()
c.addCallback(_parseRepoURL)
return c
def _maybeClobber(res):
if self.clobber:
msg = "Clobber flag set. Doing clobbering"
log.msg(msg)
return self.clobber(None, self.srcdir)
return 0
c = cmd.start()
c.addCallback(_parseIdentify)
c.addCallback(_checkRepoURL)
c.addCallback(_maybeClobber)
c.addCallback(self._update2)
return c
def _update2(self, res):
hg = self.getCommand('hg')
updatecmd=[hg, 'update', '--clean', '--repository', self.srcdir]
if self.args.get('revision'):
updatecmd.extend(['--rev', self.args['revision']])
else:
updatecmd.extend(['--rev', self.args.get('branch', 'default')])
self.command = runprocess.RunProcess(self.builder, updatecmd,
self.builder.basedir, sendRC=False,
timeout=self.timeout, maxTime=self.maxTime,
logEnviron=self.logEnviron, usePTY=False)
return self.command.start()
def parseGotRevision(self):
hg = self.getCommand('hg')
# we use 'hg parents' to find out what we wound up with
command = [hg, "parents", "--template", "{node}\\n"] # get full rev id
c = runprocess.RunProcess(self.builder, command,
os.path.join(self.builder.basedir, self.srcdir),
environ=self.env, timeout=self.timeout,
sendRC=False,
keepStdout=True, usePTY=False,
logEnviron=self.logEnviron)
d = c.start()
def _parse(res):
m = re.search(r'^(\w+)', c.stdout)
return m.group(1)
d.addCallback(_parse)
return d
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