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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Module for representing the workspace directory which CIFuzz uses."""

import os
import shutil


class Workspace:
  """Class representing the workspace directory."""

  def __init__(self, config):
    self.workspace = config.workspace

  def initialize_dir(self, directory):  # pylint: disable=no-self-use
    """Creates directory if it doesn't already exist, otherwise does nothing."""
    os.makedirs(directory, exist_ok=True)

  @property
  def repo_storage(self):
    """The parent directory for repo storage."""
    return os.path.join(self.workspace, 'storage')

  @property
  def out(self):
    """The out directory used for storing the fuzzer build built by
    build_fuzzers."""
    # Don't use 'out' because it needs to be used by artifacts.
    return os.path.join(self.workspace, 'build-out')

  @property
  def work(self):
    """The directory used as the work directory for the fuzzer build/run."""
    return os.path.join(self.workspace, 'work')

  @property
  def artifacts(self):
    """The directory used to store artifacts for download by CI-system users."""
    # This is hardcoded by a lot of clients, so we need to use this.
    return os.path.join(self.workspace, 'out', 'artifacts')

  @property
  def clusterfuzz_build(self):
    """The directory where builds from ClusterFuzz are stored."""
    return os.path.join(self.workspace, 'cifuzz-prev-build')

  @property
  def clusterfuzz_coverage(self):
    """The directory where builds from ClusterFuzz are stored."""
    return os.path.join(self.workspace, 'cifuzz-prev-coverage')

  @property
  def coverage_report(self):
    """The directory where coverage reports generated by cifuzz are put."""
    return os.path.join(self.workspace, 'cifuzz-coverage')

  @property
  def corpora(self):
    """The directory where corpora from ClusterFuzz are stored."""
    return os.path.join(self.workspace, 'cifuzz-corpus')

  @property
  def pruned_corpora(self):
    """The directory where pruned corpora are stored."""
    return os.path.join(self.workspace, 'cifuzz-pruned-corpus')

  @property
  def sarif(self):
    """The directory where sarif files are stored."""
    return os.path.join(self.workspace, 'cifuzz-sarif')

  def make_repo_for_sarif(self, repo_manager):
    """Copies the repo over for the sarif upload GitHub action."""
    return shutil.copytree(repo_manager.repo_dir, self.sarif, symlinks=True)