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# Copyright (C) 2012-2014 Codethink Limited
#
# This program 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 of the License.
#
# 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 morphlib
class Source(object):
'''Represent the source to be built.
Has the following properties:
* ``repo`` -- the git repository which contains the source
* ``repo_name`` -- name of the git repository which contains the source
* ``original_ref`` -- the git ref provided by the user or a morphology
* ``sha1`` -- the absolute git commit id for the revision we use
* ``tree`` -- the SHA1 of the tree corresponding to the commit
* ``morphology`` -- the in-memory representation of the morphology we use
* ``filename`` -- basename of the morphology filename
* ``artifacts`` -- the set of artifacts this source produces, or
None if it has not yet been set by the
ArtifactResolver.
'''
def __init__(self, repo_name, original_ref, sha1, tree, morphology,
filename):
self.repo = None
self.repo_name = repo_name
self.original_ref = original_ref
self.sha1 = sha1
self.tree = tree
self.morphology = morphology
self.filename = filename
self.artifacts = None
def __str__(self): # pragma: no cover
return '%s|%s|%s' % (self.repo_name,
self.original_ref,
self.filename[:-len('.morph')])
def get_artifact(self, name): # pragma: no cover
'''Get the artifact of this source named ``name``.
This initialises a new Artifact object with this source as a
parent, if it does not already exist.
The same Artifact object is returned if the same name is given
later.
The set of Artifacts a Source has may be iterated over with the
``artifacts`` field, which has the sentinel value of ``None``
if no Artifacts have been initialised yet.
'''
if self.artifacts is None:
self.artifacts = {}
try:
return self.artifacts[name]
except KeyError:
a = morphlib.artifact.Artifact(self, name)
self.artifacts[name] = a
return a
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