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# Load Baserock Definitions serialisation format V5 into a SurfRDF 'store'.
# https://github.com/cosminbasca/surfrdf
import rdflib
import surf
import yaml
import os
import warnings
surf.ns.register(baserock='http://baserock.org/definitions/example-schema#')
surf.ns.register(dc='http://purl.org/dc/terms/')
def load_all_morphologies(session, store):
Chunk = session.get_class(surf.ns.BASEROCK.Chunk)
ChunkReference = session.get_class(surf.ns.BASEROCK.ChunkReference)
Stratum = session.get_class(surf.ns.BASEROCK.Stratum)
StratumArtifact = session.get_class(surf.ns.BASEROCK.StratumArtifact)
System = session.get_class(surf.ns.BASEROCK.System)
SystemDeployment = session.get_class(surf.ns.BASEROCK.SystemDeployment)
Cluster = session.get_class(surf.ns.BASEROCK.Cluster)
def load_morph(path):
try:
with open(path) as f:
text = f.read()
contents = yaml.safe_load(text)
morph_type = contents['kind']
assert 'name' in contents
assert contents['kind'] in ['cluster', 'system', 'stratum', 'chunk']
except Exception as e:
warnings.warn("Problem loading %s: %s" % (path, e))
# FIXME:
base_uri = 'http://example.com/'
entity = None
# Note the 'surf' library doesn't seem to do any kind of validity checking
# so you can insert whatever random data you feel like, if you want.
if contents['kind'] == 'chunk':
chunk_uri = base_uri + 'chunks/' + contents['name']
entity = chunk = Chunk(chunk_uri)
# FIXME: I think order is lost here !!!!!
if 'pre-configure-commands' in contents:
chunk.baserock_preConfigureCommands = contents['pre-configure-commands']
if 'configure-commands' in contents:
chunk.baserock_configureCommands = contents['configure-commands']
if 'post-configure-commands' in contents:
chunk.baserock_postConfigureCommands = contents['post-configure-commands']
if 'pre-build-commands' in contents:
chunk.baserock_preBuildCommands = contents['pre-build-commands']
if 'build-commands' in contents:
chunk.baserock_buildCommands = contents['build-commands']
if 'post-build-commands' in contents:
chunk.baserock_postBuildCommands = contents['post-build-commands']
if 'pre-install-commands' in contents:
chunk.baserock_preInstallCommands = contents['pre-install-commands']
if 'install-commands' in contents:
chunk.baserock_installCommands = contents['install-commands']
if 'post-install-commands' in contents:
chunk.baserock_postInstallCommands = contents['post-install-commands']
elif contents['kind'] == 'stratum':
stratum_uri = base_uri + 'strata/' + contents['name']
entity = stratum = Stratum(stratum_uri)
stratum_build_deps = []
for entry in contents.get('build-depends', []):
build_dep_uri = base_uri + 'strata/' + entry['morph']
stratum_build_deps.append(rdflib.URIRef(build_dep_uri))
stratum.baserock_hasBuildDependency = stratum_build_deps
artifacts = []
for entry in contents.get('products', []):
artifact_uri = stratum_uri + '/products/' + entry['artifact']
artifact = StratumArtifact(artifact_uri)
# FIXME: order probably lost here
if 'includes' in entry:
artifact.baserock_includes = entry['includes']
artifacts.append(artifact)
stratum.baserock_produces = artifacts
chunk_refs = []
for entry in contents.get('chunks', []):
chunk_ref_uri = stratum_uri + '/chunk-refs/' + entry['name']
chunk_ref = ChunkReference(chunk_ref_uri)
# FIXME: this ignores the 'morph' field, and assumes 'name' is
# usable as-is.
chunk_uri = base_uri + 'chunks/' + entry['name']
chunk_ref.baserock_refersToChunk = rdflib.URIRef(chunk_uri)
chunk_ref.baserock_repo = entry['repo']
chunk_ref.baserock_ref = entry['ref']
if 'unpetrify-ref' in entry:
chunk_ref.baserock_unpetrifyRef = entry['unpetrify-ref']
chunk_ref.baserock_buildMode = entry.get('build-mode', 'normal')
chunk_ref.baserock_prefix = entry.get('prefix', '/usr')
chunk_ref_build_deps = []
for entry_dep in entry.get('build-depends', []):
build_dep_uri = stratum_uri + '/chunk-refs/' + entry_dep
chunk_ref_build_deps.append(build_dep_uri)
chunk_ref.baserock_hasChunkBuildDependency = chunk_ref_build_deps
chunk_refs.append(chunk_ref)
stratum.baserock_containsChunkReference = chunk_refs
elif contents['kind'] == 'system':
system_uri = base_uri + 'systems/' + contents['name']
entity = system = System(system_uri)
system.baserock_arch = contents['arch']
stratum_artifacts = []
for entry in contents.get('strata', []):
# FIXME: need to include all strata if 'artifacts' isn't specified,
# which is difficult becausee they might not all be loaded yet ...
# so for now I cheat and just assume -runtime and -devel. If there
# are extra artifacts for the stratum they won't be incuded by
# default. I'm not sure if this is how Morph behaves or not.
artifacts = entry.get('artifacts')
if artifacts is None:
artifacts = ['%s-runtime' % entry['name'],
'%s-devel' % entry['name']]
for artifact in artifacts:
artifact_uri = (base_uri + '/strata/' + entry['name'] +
'/products/' + artifact)
stratum_artifacts.append(artifact_uri)
system.baserock_containsStratumArtifact = stratum_artifacts
system.baserock_hasConfigurationExtension = \
contents.get('configuration-extensions', [])
elif contents['kind'] == 'cluster':
cluster_uri = base_uri + 'clusters/' + contents['name']
entity = cluster = Cluster(cluster_uri)
deployments = []
for entry in contents.get('systems', []):
# FIXME: can't get the URI from the 'morph' entry... need to load
# the actual .morph file and get the name from there.
system_uri = 'http://FIXME'
# FIXME: ignores deploy-defaults at present
for label, details in entry['deploy'].items():
deployment_uri = cluster_uri + '/' + label
deployment = SystemDeployment(deployment_uri)
deployment.baserock_deploysSystem = rdflib.URIRef(system_uri)
deployment.baserock_hasLabel = label
deployment.baserock_hasType = details['type']
deployment.baserock_hasLocation = details['location']
settings = []
for key, value in details.items():
if key in ['type', 'location']:
continue
# FIXME: RDF must have a way of representing arbitrary
# key/values better than using a string with an = sign...
settings.append('%s=%s' % (key,value))
deployment.baserock_hasConfigurationSetting = settings
deployments.append(deployment)
cluster.baserock_deploysSystem = deployments
if 'description' in contents:
entity.dc_description = contents['description']
# FIXME: is this needed? why?
entity.set_dirty(True)
# FIXME: comments from the .yaml file are lost ... as a quick solution,
# you could manually find every line from the YAML that starts with a '#'
# and dump that into a property.
print 'Parsing .morph files...'
for dirname, dirnames, filenames in os.walk('..'):
if '.git' in dirnames:
dirnames.remove('.git')
for filename in sorted(filenames):
if filename.endswith('.morph'):
load_morph(os.path.join(dirname, filename))
print 'Committing to database...'
try:
session.commit()
except Exception as e:
if DATABASE=='virtuoso' and \
'Virtuoso 42000 Error SR186: No permission to execute procedure DB' in e.message:
print("Permission denied trying to update the database via the "
"SPARQL endpoint. By default this endpoint is read-only. "
"To enable write access, run the `isql` or `isql-vt` "
"commandline interface and run the following statement:\n\n"
" grant SPARQL_UPDATE to \"SPARQL\";\n\n"
"WARNING! Only do this if you're using a local test instance "
"of Virtuoso. You need to set up a real authenticated user "
"account if using an instance of Virtuoso that has "
"important data on it.")
else:
raise
store.save()
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