169 lines
5.3 KiB
Python
169 lines
5.3 KiB
Python
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import os
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import sys
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import git
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SOURCE_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
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VENDOR_DIR = os.path.join(SOURCE_ROOT, 'vendor')
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PYYAML_LIB_DIR = os.path.join(VENDOR_DIR, 'pyyaml', 'lib')
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sys.path.append(PYYAML_LIB_DIR)
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import yaml
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class Patch:
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def __init__(self, file_path, repo_path, paths_prefix=None, author='Anonymous <anonymous@electronjs.org>', description=None):
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self.author = author
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self.description = description
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self.file_path = file_path
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self.paths_prefix = paths_prefix
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self.repo_path = repo_path
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def apply(self, reverse=False, commit=False, index=False):
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# Add the change to index only if we're going to commit it later.
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add_to_index = index or commit
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patch_applied = git.apply(self.repo_path, self.file_path, directory=self.paths_prefix, index=add_to_index, reverse=reverse)
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if not patch_applied:
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return False
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if commit:
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message = self.__get_commit_message(reverse)
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patch_committed = git.commit(self.repo_path, author=self.author, message=message)
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return patch_committed
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return True
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def __get_commit_message(self, reverse):
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message = self.description
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if message is None:
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message = os.path.basename(self.file_path)
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if reverse:
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message = 'Revert: ' + message
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return message
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def reverse(self):
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return self.apply(reverse=True)
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def get_file_path(self):
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return self.file_path
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class PatchesList:
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"""A list of patches for a specific git repo."""
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def __init__(self, repo_path, patches):
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# TODO(alexeykuzmin): Make sure that all patches have the same repo_path.
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self.repo_path = repo_path
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self.patches = patches
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def __len__(self):
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return len(self.patches)
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def apply(self, reverse=False, stop_on_error=True, commit=False):
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all_patches_applied = True
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failed_patches = []
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for patch in self.patches:
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# Even if `commit` is True we're not going to commit
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# individual patches, it takes too much time in the Chromium repo.
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# Applying all commits takes about 10 minutes (!) on a fast dev machine.
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# Instead of it we are going only to add all changes to the index
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# and commit them all at once later.
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applied_successfully = patch.apply(reverse=reverse, index=commit, commit=False)
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if not applied_successfully:
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all_patches_applied = False
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failed_patches.append(patch)
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should_stop_now = not applied_successfully and stop_on_error
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if should_stop_now:
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break
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if commit and not all_patches_applied:
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git.reset(self.repo_path)
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if commit and all_patches_applied:
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author = 'Electron Build Process <build@electronjs.org>'
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message = 'Apply Electron patches'
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git.commit(self.repo_path, author=author, message=message)
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return (all_patches_applied, failed_patches)
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def reverse(self, stop_on_error=True, commit=False):
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return self.apply(reverse=True, stop_on_error=stop_on_error, commit=commit)
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class PatchesConfig:
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@staticmethod
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def from_directory(dir_path, project_root, config_name='.patches.yaml'):
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config_path = os.path.join(dir_path, config_name)
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return PatchesConfig(config_path, project_root)
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def __init__(self, config_path, project_root):
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self.path = config_path
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self.patches_list = None
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self.project_root = project_root
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def __parse(self):
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contents = None
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if os.path.isfile(self.path):
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with open(self.path, 'r') as stream:
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try:
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contents = yaml.load(stream)
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except yaml.YAMLError as e:
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print(e)
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return contents
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def __create_patch(self, raw_data, base_directory, repo_path, paths_prefix):
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author = raw_data['author']
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if author is None: # Shouldn't actually happen.
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author = 'Anonymous <anonymous@electronjs.org>'
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relative_file_path = raw_data['file']
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absolute_file_path = os.path.join(base_directory, relative_file_path)
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# Use a patch file path as a commit summary
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# and optional description as a commit body.
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description = relative_file_path
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if raw_data['description'] is not None:
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description += '\n\n' + raw_data['description']
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return Patch(absolute_file_path, repo_path, paths_prefix=paths_prefix, author=author, description=description)
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def __create_patches_list(self):
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config_contents = self.__parse()
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if config_contents is None:
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return None
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relative_repo_path = os.path.normpath(config_contents['repo'])
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absolute_repo_path = os.path.join(self.project_root, relative_repo_path)
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# If the 'repo' path is not really a git repository,
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# then use that path as a prefix for patched files.
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paths_prefix = None
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if not git.is_repo_root(absolute_repo_path):
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assert(git.is_repo_root(self.project_root))
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absolute_repo_path = self.project_root
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paths_prefix = relative_repo_path
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patches_data = config_contents['patches']
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base_directory = os.path.abspath(os.path.dirname(self.path))
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patches = [self.__create_patch(data, base_directory, absolute_repo_path, paths_prefix) for data in patches_data]
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patches_list = PatchesList(repo_path=absolute_repo_path, patches=patches)
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return patches_list
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def get_patches_list(self):
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if self.patches_list is not None:
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return self.patches_list
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patches_list = self.__create_patches_list()
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self.patches_list = patches_list
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return patches_list
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