451 lines
14 KiB
Python
451 lines
14 KiB
Python
import os
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import subprocess
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import sys
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import requests
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import shutil
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import yaml
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from copy import deepcopy
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from typing import Optional, TypedDict
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# Get TMP_DIR variable from environment
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TMP_DIR = os.path.join(os.environ.get("TMP_DIR", "/tmp"), "ohmyzsh")
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# Relative path to dependencies.yml file
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DEPS_YAML_FILE = ".github/dependencies.yml"
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# Dry run flag
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DRY_RUN = os.environ.get("DRY_RUN", "0") == "1"
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import timeit
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class CodeTimer:
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def __init__(self, name=None):
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self.name = " '" + name + "'" if name else ''
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def __enter__(self):
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self.start = timeit.default_timer()
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def __exit__(self, exc_type, exc_value, traceback):
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self.took = (timeit.default_timer() - self.start) * 1000.0
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print('Code block' + self.name + ' took: ' + str(self.took) + ' ms')
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### YAML representation
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def str_presenter(dumper, data):
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"""
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Configures yaml for dumping multiline strings
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Ref: https://stackoverflow.com/a/33300001
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"""
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if len(data.splitlines()) > 1: # check for multiline string
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return dumper.represent_scalar('tag:yaml.org,2002:str', data, style='|')
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return dumper.represent_scalar('tag:yaml.org,2002:str', data)
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yaml.add_representer(str, str_presenter)
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yaml.representer.SafeRepresenter.add_representer(str, str_presenter)
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# Types
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class DependencyDict(TypedDict):
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repo: str
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branch: str
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version: str
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precopy: Optional[str]
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postcopy: Optional[str]
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class DependencyYAML(TypedDict):
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dependencies: dict[str, DependencyDict]
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class UpdateStatus(TypedDict):
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has_updates: bool
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version: Optional[str]
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compare_url: Optional[str]
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head_ref: Optional[str]
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head_url: Optional[str]
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class CommandRunner:
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class Exception(Exception):
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def __init__(self, message, returncode, stage, stdout, stderr):
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super().__init__(message)
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self.returncode = returncode
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self.stage = stage
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self.stdout = stdout
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self.stderr = stderr
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@staticmethod
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def run_or_fail(command: list[str], stage: str, *args, **kwargs):
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if DRY_RUN and command[0] == "gh":
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command.insert(0, "echo")
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result = subprocess.run(command, *args, capture_output=True, **kwargs)
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if result.returncode != 0:
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raise CommandRunner.Exception(
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f"{stage} command failed with exit code {result.returncode}", returncode=result.returncode,
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stage=stage,
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stdout=result.stdout.decode("utf-8"),
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stderr=result.stderr.decode("utf-8")
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)
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return result
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class DependencyStore:
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store: DependencyYAML = {
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"dependencies": {}
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}
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@staticmethod
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def set(data: DependencyYAML):
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DependencyStore.store = data
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@staticmethod
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def update_dependency_version(path: str, version: str) -> DependencyYAML:
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with CodeTimer(f"store deepcopy: {path}"):
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store_copy = deepcopy(DependencyStore.store)
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dependency = store_copy["dependencies"].get(path, {})
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dependency["version"] = version
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store_copy["dependencies"][path] = dependency
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return store_copy
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@staticmethod
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def write_store(file: str, data: DependencyYAML):
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with open(file, "w") as yaml_file:
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yaml.safe_dump(data, yaml_file, sort_keys=False)
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class Dependency:
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def __init__(self, path: str, values: DependencyDict):
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self.path = path
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self.values = values
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self.name: str = ""
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self.desc: str = ""
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self.kind: str = ""
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match path.split("/"):
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case ["plugins", name]:
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self.name = name
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self.kind = "plugin"
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self.desc = f"{name} plugin"
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case ["themes", name]:
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self.name = name.replace(".zsh-theme", "")
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self.kind = "theme"
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self.desc = f"{self.name} theme"
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case _:
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self.name = self.desc = path
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def __str__(self):
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output: str = ""
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for key in DependencyDict.__dict__['__annotations__'].keys():
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if key not in self.values:
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output += f"{key}: None\n"
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continue
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value = self.values[key]
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if "\n" not in value:
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output += f"{key}: {value}\n"
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else:
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output += f"{key}:\n "
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output += value.replace("\n", "\n ", value.count("\n") - 1)
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return output
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def update_or_notify(self):
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# Print dependency settings
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print(f"Processing {self.desc}...", file=sys.stderr)
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print(self, file=sys.stderr)
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# Check for updates
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repo = self.values["repo"]
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remote_branch = self.values["branch"]
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version = self.values["version"]
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is_tag = version.startswith("tag:")
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try:
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with CodeTimer(f"update check: {repo}"):
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if is_tag:
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status = GitHub.check_newer_tag(repo, version.replace("tag:", ""))
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else:
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status = GitHub.check_updates(repo, remote_branch, version)
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if status["has_updates"]:
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short_sha = status["head_ref"][:8]
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new_version = status["version"] if is_tag else short_sha
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try:
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# Create new branch
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branch = Git.create_branch(self.path, new_version)
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# Update dependencies.yml file
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self.__update_yaml(f"tag:{new_version}" if is_tag else status["version"])
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# Update dependency files
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self.__apply_upstream_changes()
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# Add all changes and commit
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Git.add_and_commit(self.name, short_sha)
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# Push changes to remote
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Git.push(branch)
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# Create GitHub PR
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GitHub.create_pr(
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branch,
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f"feat({self.name}): update to version {new_version}",
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f"""## Description
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Update for **{self.desc}**: update to version [{new_version}]({status['head_url']}).
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Check out the [list of changes]({status['compare_url']}).
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"""
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)
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# Clean up repository
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Git.clean_repo()
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except (CommandRunner.Exception, shutil.Error) as e:
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# Handle exception on automatic update
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match type(e):
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case CommandRunner.Exception:
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# Print error message
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print(f"Error running {e.stage} command: {e.returncode}", file=sys.stderr)
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print(e.stderr, file=sys.stderr)
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case shutil.Error:
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print(f"Error copying files: {e}", file=sys.stderr)
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try:
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Git.clean_repo()
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except CommandRunner.Exception as e:
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print(f"Error reverting repository to clean state: {e}", file=sys.stderr)
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sys.exit(1)
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# Create a GitHub issue to notify maintainer
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title = f"{self.path}: update to {new_version}"
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body = (
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f"""## Description
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There is a new version of `{self.name}` {self.kind} available.
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New version: [{new_version}]({status['head_url']})
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Check out the [list of changes]({status['compare_url']}).
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"""
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)
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print(f"Creating GitHub issue", file=sys.stderr)
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print(f"{title}\n\n{body}", file=sys.stderr)
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GitHub.create_issue(title, body)
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except Exception as e:
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print(e, file=sys.stderr)
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def __update_yaml(self, new_version: str) -> None:
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dep_yaml = DependencyStore.update_dependency_version(self.path, new_version)
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DependencyStore.write_store(DEPS_YAML_FILE, dep_yaml)
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def __apply_upstream_changes(self) -> None:
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# Patterns to ignore in copying files from upstream repo
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GLOBAL_IGNORE = [
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".git",
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".github",
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".gitignore"
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]
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path = os.path.abspath(self.path)
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precopy = self.values.get("precopy")
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postcopy = self.values.get("postcopy")
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repo = self.values["repo"]
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branch = self.values["branch"]
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remote_url = f"https://github.com/{repo}.git"
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repo_dir = os.path.join(TMP_DIR, repo)
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# Clone repository
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Git.clone(remote_url, branch, repo_dir, reclone=True)
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# Run precopy on tmp repo
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if precopy is not None:
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print("Running precopy script:", end="\n ", file=sys.stderr)
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print(precopy.replace("\n", "\n ", precopy.count("\n") - 1), file=sys.stderr)
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CommandRunner.run_or_fail(["bash", "-c", precopy], cwd=repo_dir, stage="Precopy")
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# Copy files from upstream repo
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print(f"Copying files from {repo_dir} to {path}", file=sys.stderr)
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shutil.copytree(repo_dir, path, dirs_exist_ok=True, ignore=shutil.ignore_patterns(*GLOBAL_IGNORE))
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# Run postcopy on our repository
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if postcopy is not None:
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print("Running postcopy script:", end="\n ", file=sys.stderr)
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print(postcopy.replace("\n", "\n ", postcopy.count("\n") - 1), file=sys.stderr)
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CommandRunner.run_or_fail(["bash", "-c", postcopy], cwd=path, stage="Postcopy")
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class Git:
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default_branch = "master"
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@staticmethod
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def clone(remote_url: str, branch: str, repo_dir: str, reclone=False):
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# If repo needs to be fresh
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if reclone and os.path.exists(repo_dir):
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shutil.rmtree(repo_dir)
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# Clone repo in tmp directory and checkout branch
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if not os.path.exists(repo_dir):
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print(f"Cloning {remote_url} to {repo_dir} and checking out {branch}", file=sys.stderr)
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CommandRunner.run_or_fail(["git", "clone", "--depth=1", "-b", branch, remote_url, repo_dir], stage="Clone")
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@staticmethod
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def create_branch(path: str, version: str):
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# Get current branch name
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result = CommandRunner.run_or_fail(["git", "rev-parse", "--abbrev-ref", "HEAD"], stage="GetDefaultBranch")
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Git.default_branch = result.stdout.decode("utf-8").strip()
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# Create new branch and return created branch name
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branch_name = f"update/{path}/{version}"
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CommandRunner.run_or_fail(["git", "checkout", "-b", branch_name], stage="CreateBranch")
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return branch_name
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@staticmethod
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def add_and_commit(scope: str, version: str):
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user_name = os.environ.get("GIT_APP_NAME")
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user_email = os.environ.get("GIT_APP_EMAIL")
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# Add all files to git staging
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CommandRunner.run_or_fail(["git", "add", "-A", "-v"], stage="AddFiles")
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# Reset environment and git config
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clean_env = os.environ.copy()
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clean_env["LANG"]="C.UTF-8"
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clean_env["GIT_CONFIG_GLOBAL"]="/dev/null"
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clean_env["GIT_CONFIG_NOSYSTEM"]="1"
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# Commit with settings above
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CommandRunner.run_or_fail([
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"git",
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"-c", f"user.name={user_name}",
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"-c", f"user.email={user_email}",
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"commit",
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"-m", f"feat({scope}): update to {version}"
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], stage="CreateCommit", env=clean_env)
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@staticmethod
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def push(branch: str):
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CommandRunner.run_or_fail(["git", "push", "-u", "origin", branch], stage="PushBranch")
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@staticmethod
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def clean_repo():
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CommandRunner.run_or_fail(["git", "reset", "--hard", "HEAD"], stage="ResetRepository")
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CommandRunner.run_or_fail(["git", "checkout", Git.default_branch], stage="CheckoutDefaultBranch")
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class GitHub:
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@staticmethod
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def check_newer_tag(repo, current_tag) -> UpdateStatus:
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# GET /repos/:owner/:repo/git/refs/tags
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url = f"https://api.github.com/repos/{repo}/git/refs/tags"
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# Send a GET request to the GitHub API
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response = requests.get(url)
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# If the request was successful
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if response.status_code == 200:
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# Parse the JSON response
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data = response.json()
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if len(data) == 0:
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return {
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"has_updates": False,
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}
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latest_ref = data[-1]
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latest_tag = latest_ref["ref"].replace("refs/tags/", "")
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if latest_tag == current_tag:
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return {
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"has_updates": False,
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}
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return {
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"has_updates": True,
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"version": latest_tag,
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"compare_url": f"https://github.com/{repo}/compare/{current_tag}...{latest_tag}",
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"head_ref": latest_ref["object"]["sha"],
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"head_url": f"https://github.com/{repo}/releases/tag/{latest_tag}",
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}
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else:
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# If the request was not successful, raise an exception
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raise Exception(f"GitHub API request failed with status code {response.status_code}: {response.json()}")
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@staticmethod
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def check_updates(repo, branch, version) -> UpdateStatus:
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# TODO: add support for semver updating (based on tags)
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# Check if upstream github repo has a new version
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# GitHub API URL for comparing two commits
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url = f"https://api.github.com/repos/{repo}/compare/{version}...{branch}"
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# Send a GET request to the GitHub API
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response = requests.get(url)
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# If the request was successful
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if response.status_code == 200:
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# Parse the JSON response
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data = response.json()
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# If the base is behind the head, there is a newer version
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has_updates = data["status"] != "identical"
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if not has_updates:
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return {
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"has_updates": False,
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}
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return {
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"has_updates": data["status"] != "identical",
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"version": data["commits"][-1]["sha"],
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"compare_url": data["permalink_url"],
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"head_ref": data["commits"][-1]["sha"],
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"head_url": data["commits"][-1]["html_url"]
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}
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else:
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# If the request was not successful, raise an exception
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raise Exception(f"GitHub API request failed with status code {response.status_code}: {response.json()}")
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@staticmethod
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def create_issue(title: str, body: str) -> None:
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cmd = [
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"gh",
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"issue",
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"create",
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"-t", title,
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"-b", body
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]
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CommandRunner.run_or_fail(cmd, stage="CreateIssue")
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@staticmethod
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def create_pr(branch: str, title: str, body: str) -> None:
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cmd = [
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"gh",
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"pr",
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"create",
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"-B", Git.default_branch,
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"-H", branch,
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"-t", title,
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"-b", body
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]
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CommandRunner.run_or_fail(cmd, stage="CreatePullRequest")
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def main():
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# Load the YAML file
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with open(DEPS_YAML_FILE, "r") as yaml_file:
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data: DependencyYAML = yaml.safe_load(yaml_file)
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if "dependencies" not in data:
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raise Exception(f"dependencies.yml not properly formatted")
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# Cache YAML version
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DependencyStore.set(data)
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dependencies = data["dependencies"]
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for path in dependencies:
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dependency = Dependency(path, dependencies[path])
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dependency.update_or_notify()
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if __name__ == "__main__":
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main()
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