"""VCS Helpers
"""
import logging
import os
import re
from datetime import date
from pathlib import Path, PurePath
from typing import List, Optional, Tuple
from urllib.parse import urlsplit
from git import GitCommandError, InvalidGitRepositoryError, Repo
from git.exc import BadName
from git.objects import TagObject
from .errors import GitError, HvcsRepoParseError
from .helpers import LoggedFunction
from .settings import config
_repo: Optional[Repo]
try:
_repo = Repo(".", search_parent_directories=True)
except InvalidGitRepositoryError:
_repo = None
logger = logging.getLogger(__name__)
[docs]def repo():
if _repo is None:
raise GitError("Not in a valid git repository")
return _repo
[docs]def get_commit_log(from_rev=None):
"""Yield all commit messages from last to first."""
rev = None
if from_rev:
from_rev = get_formatted_tag(from_rev)
try:
repo().commit(from_rev)
rev = f"...{from_rev}"
except BadName:
logger.debug(
f"Reference {from_rev} does not exist, considering entire history"
)
for commit in repo().iter_commits(rev):
yield (commit.hexsha, commit.message.replace("\r\n", "\n"))
[docs]@LoggedFunction(logger)
def get_last_version(pattern, skip_tags=None) -> Optional[str]:
"""
Find the latest version using repo tags.
:return: A string containing a version number.
"""
skip_tags = skip_tags or []
def version_finder(tag):
if isinstance(tag.commit, TagObject):
return tag.tag.tagged_date
return tag.commit.committed_date
for i in sorted(repo().tags, reverse=True, key=version_finder):
if i.name in skip_tags:
continue
match = re.search(pattern, i.name)
if match:
return match.group(1).strip()
return None
[docs]@LoggedFunction(logger)
def get_repository_owner_and_name() -> Tuple[str, str]:
"""
Check the 'origin' remote to get the owner and name of the remote repository.
:return: A tuple of the owner and name.
"""
# Gitlab-CI context
if "CI_PROJECT_NAMESPACE" in os.environ and "CI_PROJECT_NAME" in os.environ:
return os.environ["CI_PROJECT_NAMESPACE"], os.environ["CI_PROJECT_NAME"]
# Github actions context
if "GITHUB_REPOSITORY" in os.environ:
owner, name = os.environ["GITHUB_REPOSITORY"].rsplit("/", 1)
return owner, name
# Local context
url = repo().remote("origin").url
split_url = urlsplit(url)
# Select the owner and name as regex groups
parts = re.search(r"[:/]([^:]+)/([^/]*?)(.git)?$", split_url.path)
if not parts:
raise HvcsRepoParseError
return parts.group(1), parts.group(2)
[docs]def get_current_head_hash() -> str:
"""
Get the commit hash of the current HEAD.
:return: The commit hash.
"""
return repo().head.commit.name_rev.split(" ")[0]
[docs]@LoggedFunction(logger)
def commit_new_version(version: str):
"""
Commit the file containing the version number variable.
The commit message will be generated from the configured template.
:param version: Version number to be used in the commit message.
"""
from .history import load_version_declarations
commit_message = get_formatted_commit(version)
commit_author = config.get(
"commit_author",
"semantic-release <semantic-release>",
)
for declaration in load_version_declarations():
git_path: PurePath = PurePath(os.getcwd(), declaration.path).relative_to(repo().working_dir) # type: ignore
repo().git.add(str(git_path))
return repo().git.commit(m=commit_message, author=commit_author)
[docs]@LoggedFunction(logger)
def update_changelog_file(version: str, content_to_add: str):
"""
Update changelog file with changelog for the release.
:param version: The release version number, as a string.
:param content_to_add: The release notes for the version.
"""
changelog_file = config.get("changelog_file")
changelog_placeholder = config.get("changelog_placeholder")
git_path = Path(os.getcwd(), changelog_file)
if not git_path.exists() or git_path.read_text().strip() == "":
original_content = f"# Changelog\n\n{changelog_placeholder}\n"
logger.warning(f"Changelog file not found: {git_path} - creating it.")
else:
original_content = git_path.read_text()
if (
changelog_placeholder not in original_content
and "# Changelog" in original_content
):
original_content = original_content.replace(
"# Changelog", f"# Changelog\n\n{changelog_placeholder}\n"
)
if changelog_placeholder not in original_content:
logger.warning(
f"Placeholder '{changelog_placeholder}' not found "
f"in changelog file {git_path} - skipping change."
)
return
updated_content = original_content.replace(
changelog_placeholder,
"\n".join(
[
changelog_placeholder,
"",
f"## v{version} ({date.today():%Y-%m-%d})",
content_to_add,
]
),
)
git_path.write_text(updated_content)
repo().git.add(str(git_path.relative_to(str(repo().working_dir))))
[docs]def get_changed_files(repo: Repo) -> List[str]:
"""
Get untracked / dirty files in the given git repo().
:param repo: Git repo to check.
:return: A list of filenames.
"""
untracked_files = repo.untracked_files
dirty_files = [item.a_path for item in repo.index.diff(None)]
return [*untracked_files, *dirty_files]
[docs]@LoggedFunction(logger)
def update_additional_files():
"""
Add specified files to VCS, if they've changed.
"""
changed_files = get_changed_files(repo())
include_additional_files = config.get("include_additional_files")
if include_additional_files:
for filename in include_additional_files.split(","):
if filename in changed_files:
logger.debug(f"Updated file: {filename}")
repo().git.add(filename)
else:
logger.warning(f"File {filename} shows no changes, cannot update it.")
[docs]@LoggedFunction(logger)
def tag_new_version(version: str):
"""
Create a new tag with the version number, prefixed with v by default.
:param version: The version number used in the tag as a string.
"""
tag = get_formatted_tag(version)
return repo().git.tag("-a", tag, m=tag)
[docs]@LoggedFunction(logger)
def push_new_version(
auth_token: str = None,
owner: str = None,
name: str = None,
branch: str = "master",
domain: str = "github.com",
):
"""
Run git push and git push --tags.
:param auth_token: Authentication token used to push.
:param owner: Organisation or user that owns the repository.
:param name: Name of repository.
:param branch: Branch to push to
:param server_url: Name of the server. Will be used to identify a gitlab instance.
:raises GitError: if GitCommandError is raised
"""
server = "origin"
if auth_token:
if not config.get("ignore_token_for_push"):
token = auth_token
if config.get("hvcs") == "gitlab":
token = "gitlab-ci-token:" + token
actor = os.environ.get("GITHUB_ACTOR")
if actor:
server = f"https://{actor}:{token}@{domain}/{owner}/{name}.git"
else:
server = f"https://{token}@{domain}/{owner}/{name}.git"
else:
logger.debug("Ignoring token for pushing to the repository.")
try:
repo().git.push(server, branch)
repo().git.push("--tags", server, branch)
except GitCommandError as error:
message = str(error)
if auth_token:
message = message.replace(auth_token, "[AUTH_TOKEN]")
raise GitError(message)
[docs]@LoggedFunction(logger)
def checkout(branch: str):
"""
Check out the given branch in the local repository.
:param branch: The branch to checkout.
"""
return repo().git.checkout(branch)