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+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' clearcase implementation
+
+The clearcase fetcher is used to retrieve files from a ClearCase repository.
+
+Usage in the recipe:
+
+ SRC_URI = "ccrc://cc.example.org/ccrc;vob=/example_vob;module=/example_module"
+ SRCREV = "EXAMPLE_CLEARCASE_TAG"
+ PV = "${@d.getVar("SRCREV", False).replace("/", "+")}"
+
+The fetcher uses the rcleartool or cleartool remote client, depending on which one is available.
+
+Supported SRC_URI options are:
+
+- vob
+ (required) The name of the clearcase VOB (with prepending "/")
+
+- module
+ The module in the selected VOB (with prepending "/")
+
+ The module and vob parameters are combined to create
+ the following load rule in the view config spec:
+ load <vob><module>
+
+- proto
+ http or https
+
+Related variables:
+
+ CCASE_CUSTOM_CONFIG_SPEC
+ Write a config spec to this variable in your recipe to use it instead
+ of the default config spec generated by this fetcher.
+ Please note that the SRCREV loses its functionality if you specify
+ this variable. SRCREV is still used to label the archive after a fetch,
+ but it doesn't define what's fetched.
+
+User credentials:
+ cleartool:
+ The login of cleartool is handled by the system. No special steps needed.
+
+ rcleartool:
+ In order to use rcleartool with authenticated users an `rcleartool login` is
+ necessary before using the fetcher.
+"""
+# Copyright (C) 2014 Siemens AG
+#
+# 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
+import sys
+import shutil
+import bb
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import FetchError
+from bb.fetch2 import runfetchcmd
+from bb.fetch2 import logger
+from distutils import spawn
+
+class ClearCase(FetchMethod):
+ """Class to fetch urls via 'clearcase'"""
+ def init(self, d):
+ pass
+
+ def supports(self, ud, d):
+ """
+ Check to see if a given url can be fetched with Clearcase.
+ """
+ return ud.type in ['ccrc']
+
+ def debug(self, msg):
+ logger.debug(1, "ClearCase: %s", msg)
+
+ def urldata_init(self, ud, d):
+ """
+ init ClearCase specific variable within url data
+ """
+ ud.proto = "https"
+ if 'protocol' in ud.parm:
+ ud.proto = ud.parm['protocol']
+ if not ud.proto in ('http', 'https'):
+ raise fetch2.ParameterError("Invalid protocol type", ud.url)
+
+ ud.vob = ''
+ if 'vob' in ud.parm:
+ ud.vob = ud.parm['vob']
+ else:
+ msg = ud.url+": vob must be defined so the fetcher knows what to get."
+ raise MissingParameterError('vob', msg)
+
+ if 'module' in ud.parm:
+ ud.module = ud.parm['module']
+ else:
+ ud.module = ""
+
+ ud.basecmd = d.getVar("FETCHCMD_ccrc") or spawn.find_executable("cleartool") or spawn.find_executable("rcleartool")
+
+ if d.getVar("SRCREV") == "INVALID":
+ raise FetchError("Set a valid SRCREV for the clearcase fetcher in your recipe, e.g. SRCREV = \"/main/LATEST\" or any other label of your choice.")
+
+ ud.label = d.getVar("SRCREV", False)
+ ud.customspec = d.getVar("CCASE_CUSTOM_CONFIG_SPEC")
+
+ ud.server = "%s://%s%s" % (ud.proto, ud.host, ud.path)
+
+ ud.identifier = "clearcase-%s%s-%s" % ( ud.vob.replace("/", ""),
+ ud.module.replace("/", "."),
+ ud.label.replace("/", "."))
+
+ ud.viewname = "%s-view%s" % (ud.identifier, d.getVar("DATETIME", d, True))
+ ud.csname = "%s-config-spec" % (ud.identifier)
+ ud.ccasedir = os.path.join(d.getVar("DL_DIR"), ud.type)
+ ud.viewdir = os.path.join(ud.ccasedir, ud.viewname)
+ ud.configspecfile = os.path.join(ud.ccasedir, ud.csname)
+ ud.localfile = "%s.tar.gz" % (ud.identifier)
+
+ self.debug("host = %s" % ud.host)
+ self.debug("path = %s" % ud.path)
+ self.debug("server = %s" % ud.server)
+ self.debug("proto = %s" % ud.proto)
+ self.debug("type = %s" % ud.type)
+ self.debug("vob = %s" % ud.vob)
+ self.debug("module = %s" % ud.module)
+ self.debug("basecmd = %s" % ud.basecmd)
+ self.debug("label = %s" % ud.label)
+ self.debug("ccasedir = %s" % ud.ccasedir)
+ self.debug("viewdir = %s" % ud.viewdir)
+ self.debug("viewname = %s" % ud.viewname)
+ self.debug("configspecfile = %s" % ud.configspecfile)
+ self.debug("localfile = %s" % ud.localfile)
+
+ ud.localfile = os.path.join(d.getVar("DL_DIR"), ud.localfile)
+
+ def _build_ccase_command(self, ud, command):
+ """
+ Build up a commandline based on ud
+ command is: mkview, setcs, rmview
+ """
+ options = []
+
+ if "rcleartool" in ud.basecmd:
+ options.append("-server %s" % ud.server)
+
+ basecmd = "%s %s" % (ud.basecmd, command)
+
+ if command is 'mkview':
+ if not "rcleartool" in ud.basecmd:
+ # Cleartool needs a -snapshot view
+ options.append("-snapshot")
+ options.append("-tag %s" % ud.viewname)
+ options.append(ud.viewdir)
+
+ elif command is 'rmview':
+ options.append("-force")
+ options.append("%s" % ud.viewdir)
+
+ elif command is 'setcs':
+ options.append("-overwrite")
+ options.append(ud.configspecfile)
+
+ else:
+ raise FetchError("Invalid ccase command %s" % command)
+
+ ccasecmd = "%s %s" % (basecmd, " ".join(options))
+ self.debug("ccasecmd = %s" % ccasecmd)
+ return ccasecmd
+
+ def _write_configspec(self, ud, d):
+ """
+ Create config spec file (ud.configspecfile) for ccase view
+ """
+ config_spec = ""
+ custom_config_spec = d.getVar("CCASE_CUSTOM_CONFIG_SPEC", d)
+ if custom_config_spec is not None:
+ for line in custom_config_spec.split("\\n"):
+ config_spec += line+"\n"
+ bb.warn("A custom config spec has been set, SRCREV is only relevant for the tarball name.")
+ else:
+ config_spec += "element * CHECKEDOUT\n"
+ config_spec += "element * %s\n" % ud.label
+ config_spec += "load %s%s\n" % (ud.vob, ud.module)
+
+ logger.info("Using config spec: \n%s" % config_spec)
+
+ with open(ud.configspecfile, 'w') as f:
+ f.write(config_spec)
+
+ def _remove_view(self, ud, d):
+ if os.path.exists(ud.viewdir):
+ cmd = self._build_ccase_command(ud, 'rmview');
+ logger.info("cleaning up [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+ bb.fetch2.check_network_access(d, cmd, ud.url)
+ output = runfetchcmd(cmd, d, workdir=ud.ccasedir)
+ logger.info("rmview output: %s", output)
+
+ def need_update(self, ud, d):
+ if ("LATEST" in ud.label) or (ud.customspec and "LATEST" in ud.customspec):
+ ud.identifier += "-%s" % d.getVar("DATETIME",d, True)
+ return True
+ if os.path.exists(ud.localpath):
+ return False
+ return True
+
+ def supports_srcrev(self):
+ return True
+
+ def sortable_revision(self, ud, d, name):
+ return False, ud.identifier
+
+ def download(self, ud, d):
+ """Fetch url"""
+
+ # Make a fresh view
+ bb.utils.mkdirhier(ud.ccasedir)
+ self._write_configspec(ud, d)
+ cmd = self._build_ccase_command(ud, 'mkview')
+ logger.info("creating view [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+ bb.fetch2.check_network_access(d, cmd, ud.url)
+ try:
+ runfetchcmd(cmd, d)
+ except FetchError as e:
+ if "CRCLI2008E" in e.msg:
+ raise FetchError("%s\n%s\n" % (e.msg, "Call `rcleartool login` in your console to authenticate to the clearcase server before running bitbake."))
+ else:
+ raise e
+
+ # Set configspec: Setting the configspec effectively fetches the files as defined in the configspec
+ cmd = self._build_ccase_command(ud, 'setcs');
+ logger.info("fetching data [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+ bb.fetch2.check_network_access(d, cmd, ud.url)
+ output = runfetchcmd(cmd, d, workdir=ud.viewdir)
+ logger.info("%s", output)
+
+ # Copy the configspec to the viewdir so we have it in our source tarball later
+ shutil.copyfile(ud.configspecfile, os.path.join(ud.viewdir, ud.csname))
+
+ # Clean clearcase meta-data before tar
+
+ runfetchcmd('tar -czf "%s" .' % (ud.localpath), d, cleanup = [ud.localpath])
+
+ # Clean up so we can create a new view next time
+ self.clean(ud, d);
+
+ def clean(self, ud, d):
+ self._remove_view(ud, d)
+ bb.utils.remove(ud.configspecfile)