def get_commit_list(self, old_commit, new_commit):
"""Gets the list of commits(inclusive) between the old and new commits.
Args:
old_commit: The oldest commit to be in the list
new_commit: The newest commit to be in the list
Returns:
The list of commit SHAs from newest to oldest
Raises:
RepoManagerError when commits dont exist
"""
if not self.commit_exists(old_commit):
raise RepoManagerError('The old commit %s does not exist' %
old_commit)
if not self.commit_exists(new_commit):
raise RepoManagerError('The new commit %s does not exist' %
new_commit)
if old_commit == new_commit:
return [old_commit]
out, err_code = build_specified_commit.execute(
['git', 'rev-list', old_commit + '..' + new_commit], self.repo_dir)
commits = out.split('\n')
commits = [commit for commit in commits if commit]
if err_code or not commits:
raise RepoManagerError(
'Error getting commit list between %s and %s ' %
(old_commit, new_commit))
# Make sure result is inclusive
commits.append(old_commit)
return commits
def get_current_commit(self):
"""Gets the current commit SHA of the repo.
Returns:
The current active commit SHA
"""
out, _ = build_specified_commit.execute(['git', 'rev-parse', 'HEAD'],
self.repo_dir,
check_result=True)
return out.strip('\n')
def checkout_commit(self, commit):
"""Checks out a specific commit from the repo.
Args:
commit: The commit SHA to be checked out
Raises:
RepoManagerError when checkout is not successful
"""
if not self.commit_exists(commit):
raise RepoManagerError(
'Commit %s does not exist in current branch' % commit)
git_path = os.path.join(self.repo_dir, '.git', 'shallow')
if os.path.exists(git_path):
build_specified_commit.execute(['git', 'fetch', '--unshallow'],
self.repo_dir,
check_result=True)
build_specified_commit.execute(['git', 'checkout', '-f', commit],
self.repo_dir,
check_result=True)
build_specified_commit.execute(['git', 'clean', '-fxd'],
self.repo_dir,
check_result=True)
if self.get_current_commit() != commit:
raise RepoManagerError('Error checking out commit %s' % commit)
def _clone(self):
"""Creates a clone of the repo in the specified directory.
Raises:
RepoManagerError if the repo was not able to be cloned
"""
if not os.path.exists(self.base_dir):
os.makedirs(self.base_dir)
self.remove_repo()
out, err = build_specified_commit.execute(
['git', 'clone', self.repo_url], location=self.base_dir)
if not self._is_git_repo():
raise RepoManagerError('%s is not a git repo' % self.repo_url)
def commit_exists(self, commit):
"""Checks to see if a commit exists in the project repo.
Args:
commit: The commit SHA you are checking
Returns:
True if the commit exits in the project
Raises:
ValueException: an empty string was passed in as a commit
"""
# Handle the exception case, if empty string is passed execute will
# raise a ValueError
if not commit.rstrip():
raise RepoManagerError('An empty string is not a valid commit SHA')
_, err_code = build_specified_commit.execute(
['git', 'cat-file', '-e', commit], self.repo_dir)
return not err_code
