+# Copyright (c) 2017 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
import os
import logging
import yaml
+import pickle
import lttng_ivc.utils.project as Project
+import lttng_ivc.settings as Settings
+from lttng_ivc.utils.utils import sha256_checksum
_logger = logging.getLogger('project.factory')
-_conf_file = os.path.dirname(os.path.abspath(__file__)) + "/../run_configuration.yaml"
_project_constructor = {
'babeltrace': Project.Babeltrace,
'lttng-modules': Project.Lttng_modules,
'lttng-ust': Project.Lttng_ust,
}
+__projects_cache = {}
+
+_project_py_checksum = sha256_checksum(Settings.project_py_file_location)
+
_markers = None
-with open(_conf_file, 'r') as stream:
- # This is voluntary static across call, no need to perform this
+with open(Settings.run_configuration_file, 'r') as stream:
+ # This is voluntary static across calls, no need to perform this
# every time.
_markers = yaml.load(stream)
-def get(label, tmpdir):
+def get_fresh(label, tmpdir):
if label not in _markers:
# TODO: specialized exception, handle it caller-side so the caller
# can decide to skip or fail test.
path = marker['path']
sha1 = marker['sha1']
return constructor(label, path, sha1, tmpdir)
+
+
+def _validate_pickle(pickle, label):
+ _logger.debug("Checking validate for {} {}".format(pickle,
+ label))
+ if pickle._py_file_checksum != _project_py_checksum:
+ _logger.warn("Project py file changed".format(pickle.label,
+ label))
+ return False
+
+ if pickle.label != label:
+ _logger.warn("Label {} and {} are not the same".format(pickle.label,
+ label))
+ return False
+ if pickle.sha1 != _markers[label]['sha1']:
+ _logger.warn("Sha1 {} and {} are not the same".format(pickle.sha1,
+ _markers[label]['sha1']))
+ return False
+
+ deps = _markers[label]['deps']
+ if len(deps) != len(pickle.dependencies):
+ _logger.warn("Len {} and {} are not the same".format(len(deps),
+ len(pickle.dependencies)))
+ return False
+ for dep in deps:
+ if dep not in pickle.dependencies:
+ _logger.warn("Dep {} is not in {}".format(dep,
+ pickle.dependencies))
+ return False
+ else:
+ _logger.debug("Calling validate {} {}".format(pickle.dependencies[dep],
+ dep))
+ valid = _validate_pickle(pickle.dependencies[dep], dep)
+ if not valid:
+ return False
+ return True
+
+
+def get_precook(label):
+ """
+ Retrieve a precooked immutable projects from a cache if present
+ otherwise the project is built, installed and cached for future access.
+ """
+ if label not in _markers:
+ # TODO: specialized exception, handle it caller-side so the caller
+ # can decide to skip or fail test.
+ raise Exception('Label is no present')
+ marker = _markers[label]
+ constructor = _project_constructor[marker['project']]
+ path = marker['path']
+ sha1 = marker['sha1']
+ deps = marker['deps']
+
+ # Cache path for the label
+ cache_path = os.path.join(Settings.projects_cache_folder, label)
+ pickle_path = os.path.join(cache_path, label+".pickle")
+
+ # Check if Pickle Rick is present and valid. If so return it asap.
+ if os.path.exists(pickle_path):
+ with open(pickle_path, 'rb') as pickle_file:
+ pickled = pickle.load(pickle_file)
+ if _validate_pickle(pickled, label):
+ return pickled
+ else:
+ pickled.cleanup()
+ _logger.warn("Pickle for {} is invalid. Rebuilding".format(label))
+
+ project = constructor(label, path, sha1, cache_path)
+
+ for dep in deps:
+ obj_dep = get_precook(dep)
+ project.dependencies[dep] = obj_dep
+
+ project.autobuild()
+ project._immutable = True
+ with open(pickle_path, 'wb') as pickle_file:
+ pickle.dump(project, pickle_file)
+
+ return project
projects / deliverable / lttng-ivc.git / blobdiff