| # |
| # Copyright (C) 2016 Intel Corporation |
| # |
| # Released under the MIT license (see COPYING.MIT) |
| # |
| """Git repository interactions""" |
| import os |
| |
| from oeqa.utils.commands import runCmd |
| |
| |
| class GitError(Exception): |
| """Git error handling""" |
| pass |
| |
| class GitRepo(object): |
| """Class representing a Git repository clone""" |
| def __init__(self, path, is_topdir=False): |
| git_dir = self._run_git_cmd_at(['rev-parse', '--git-dir'], path) |
| git_dir = git_dir if os.path.isabs(git_dir) else os.path.join(path, git_dir) |
| self.git_dir = os.path.realpath(git_dir) |
| |
| if self._run_git_cmd_at(['rev-parse', '--is-bare-repository'], path) == 'true': |
| self.bare = True |
| self.top_dir = self.git_dir |
| else: |
| self.bare = False |
| self.top_dir = self._run_git_cmd_at(['rev-parse', '--show-toplevel'], |
| path) |
| realpath = os.path.realpath(path) |
| if is_topdir and realpath != self.top_dir: |
| raise GitError("{} is not a Git top directory".format(realpath)) |
| |
| @staticmethod |
| def _run_git_cmd_at(git_args, cwd, **kwargs): |
| """Run git command at a specified directory""" |
| git_cmd = 'git ' if isinstance(git_args, str) else ['git'] |
| git_cmd += git_args |
| ret = runCmd(git_cmd, ignore_status=True, cwd=cwd, **kwargs) |
| if ret.status: |
| cmd_str = git_cmd if isinstance(git_cmd, str) \ |
| else ' '.join(git_cmd) |
| raise GitError("'{}' failed with exit code {}: {}".format( |
| cmd_str, ret.status, ret.output)) |
| return ret.output.strip() |
| |
| @staticmethod |
| def init(path, bare=False): |
| """Initialize a new Git repository""" |
| cmd = ['init'] |
| if bare: |
| cmd.append('--bare') |
| GitRepo._run_git_cmd_at(cmd, cwd=path) |
| return GitRepo(path, is_topdir=True) |
| |
| def run_cmd(self, git_args, env_update=None): |
| """Run Git command""" |
| env = None |
| if env_update: |
| env = os.environ.copy() |
| env.update(env_update) |
| return self._run_git_cmd_at(git_args, self.top_dir, env=env) |
| |
| def rev_parse(self, revision): |
| """Do git rev-parse""" |
| try: |
| return self.run_cmd(['rev-parse', revision]) |
| except GitError: |
| # Revision does not exist |
| return None |
| |
| def get_current_branch(self): |
| """Get current branch""" |
| try: |
| # Strip 11 chars, i.e. 'refs/heads' from the beginning |
| return self.run_cmd(['symbolic-ref', 'HEAD'])[11:] |
| except GitError: |
| return None |
| |
| |