| # Copyright 2017 The PDFium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """Classes for dealing with git.""" |
| |
| import subprocess |
| |
| # pylint: disable=relative-import |
| from common import RunCommandPropagateErr |
| |
| |
| class GitHelper(object): |
| """Issues git commands. Stateful.""" |
| |
| def __init__(self): |
| self.stashed = 0 |
| |
| def Checkout(self, branch): |
| """Checks out a branch.""" |
| RunCommandPropagateErr(['git', 'checkout', branch], exit_status_on_error=1) |
| |
| def FetchOriginMaster(self): |
| """Fetches new changes on origin/master.""" |
| RunCommandPropagateErr(['git', 'fetch', 'origin', 'master'], |
| exit_status_on_error=1) |
| |
| def StashPush(self): |
| """Stashes uncommitted changes.""" |
| output = RunCommandPropagateErr(['git', 'stash', '--include-untracked'], |
| exit_status_on_error=1) |
| if 'No local changes to save' in output: |
| return False |
| |
| self.stashed += 1 |
| return True |
| |
| def StashPopAll(self): |
| """Pops as many changes as this instance stashed.""" |
| while self.stashed > 0: |
| RunCommandPropagateErr(['git', 'stash', 'pop'], exit_status_on_error=1) |
| self.stashed -= 1 |
| |
| def GetCurrentBranchName(self): |
| """Returns a string with the current branch name.""" |
| return RunCommandPropagateErr(['git', 'rev-parse', '--abbrev-ref', 'HEAD'], |
| exit_status_on_error=1).strip() |
| |
| def GetCurrentBranchHash(self): |
| return RunCommandPropagateErr(['git', 'rev-parse', 'HEAD'], |
| exit_status_on_error=1).strip() |
| |
| def IsCurrentBranchClean(self): |
| output = RunCommandPropagateErr(['git', 'status', '--porcelain'], |
| exit_status_on_error=1) |
| return not output |
| |
| def BranchExists(self, branch_name): |
| """Return whether a branch with the given name exists.""" |
| output = RunCommandPropagateErr( |
| ['git', 'rev-parse', '--verify', branch_name]) |
| return output is not None |
| |
| def CloneLocal(self, source_repo, new_repo): |
| RunCommandPropagateErr(['git', 'clone', source_repo, new_repo], |
| exit_status_on_error=1) |