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# Copyright (C) 2012-2016 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, see <http://www.gnu.org/licenses/>.
import cliapp
import os
import morphlib
class ShowDependenciesPlugin(cliapp.Plugin):
def enable(self):
self.app.add_subcommand('show-dependencies',
self.show_dependencies,
arg_synopsis='(REPO REF MORPHOLOGY)...')
def disable(self):
pass
def show_dependencies(self, args):
'''Dumps the dependency tree of all input morphologies.
Command line arguments:
* `REPO` is a git repository URL.
* `REF` is a branch or other commit reference in that repository.
* `FILENAME` is a morphology filename at that ref.
This command analyses a system morphology and produces a listing
of build dependencies of the constituent components.
'''
build_command = morphlib.buildcommand.BuildCommand(self.app)
# traverse the morphs to list all the sources
for repo, ref, filename in self.app.itertriplets(args):
morph = morphlib.util.sanitise_morphology_path(filename)
self.app.output.write('dependency graph for %s|%s|%s:\n' %
(repo, ref, morph))
srcpool = build_command.create_source_pool(repo, ref, [filename])
root_artifact = build_command.resolve_artifacts(srcpool)
for artifact in reversed(root_artifact.walk()):
self.app.output.write(' %s\n' % artifact)
for dep in sorted(artifact.source.dependencies, key=str):
self.app.output.write(' -> %s\n' % dep)
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