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from __future__ import annotations
import logging
import os
import re
import subprocess
from typing import Optional, Tuple, Union
import ghp_import
from packaging import version
import mkdocs
from mkdocs.config.defaults import MkDocsConfig
from mkdocs.exceptions import Abort
log = logging.getLogger(__name__)
default_message = """Deployed {sha} with MkDocs version: {version}"""
def _is_cwd_git_repo() -> bool:
try:
proc = subprocess.Popen(
['git', 'rev-parse', '--is-inside-work-tree'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
except FileNotFoundError:
log.error("Could not find git - is it installed and on your path?")
raise Abort('Deployment Aborted!')
proc.communicate()
return proc.wait() == 0
def _get_current_sha(repo_path) -> str:
proc = subprocess.Popen(
['git', 'rev-parse', '--short', 'HEAD'],
cwd=repo_path or None,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
stdout, _ = proc.communicate()
sha = stdout.decode('utf-8').strip()
return sha
def _get_remote_url(remote_name: str) -> Union[Tuple[str, str], Tuple[None, None]]:
# No CNAME found. We will use the origin URL to determine the GitHub
# pages location.
remote = f"remote.{remote_name}.url"
proc = subprocess.Popen(
["git", "config", "--get", remote],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
stdout, _ = proc.communicate()
url = stdout.decode('utf-8').strip()
if 'github.com/' in url:
host, path = url.split('github.com/', 1)
elif 'github.com:' in url:
host, path = url.split('github.com:', 1)
else:
return None, None
return host, path
def _check_version(branch: str) -> None:
proc = subprocess.Popen(
['git', 'show', '-s', '--format=%s', f'refs/heads/{branch}'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
stdout, _ = proc.communicate()
msg = stdout.decode('utf-8').strip()
m = re.search(r'\d+(\.\d+)+((a|b|rc)\d+)?(\.post\d+)?(\.dev\d+)?', msg, re.X | re.I)
previousv = version.parse(m.group()) if m else None
currentv = version.parse(mkdocs.__version__)
if not previousv:
log.warning('Version check skipped: No version specified in previous deployment.')
elif currentv > previousv:
log.info(
f'Previous deployment was done with MkDocs version {previousv}; '
f'you are deploying with a newer version ({currentv})'
)
elif currentv < previousv:
log.error(
f'Deployment terminated: Previous deployment was made with MkDocs version {previousv}; '
f'you are attempting to deploy with an older version ({currentv}). Use --ignore-version '
'to deploy anyway.'
)
raise Abort('Deployment Aborted!')
def gh_deploy(
config: MkDocsConfig,
message: Optional[str] = None,
force=False,
no_history=False,
ignore_version=False,
shell=False,
) -> None:
if not _is_cwd_git_repo():
log.error('Cannot deploy - this directory does not appear to be a git repository')
remote_branch = config.remote_branch
remote_name = config.remote_name
if not ignore_version:
_check_version(remote_branch)
if message is None:
message = default_message
sha = _get_current_sha(os.path.dirname(config.config_file_path))
message = message.format(version=mkdocs.__version__, sha=sha)
log.info(
"Copying '%s' to '%s' branch and pushing to GitHub.",
config.site_dir,
config.remote_branch,
)
try:
ghp_import.ghp_import(
config.site_dir,
mesg=message,
remote=remote_name,
branch=remote_branch,
push=True,
force=force,
use_shell=shell,
no_history=no_history,
nojekyll=True,
)
except ghp_import.GhpError as e:
log.error(f"Failed to deploy to GitHub with error: \n{e.message}")
raise Abort('Deployment Aborted!')
cname_file = os.path.join(config.site_dir, 'CNAME')
# Does this repository have a CNAME set for GitHub pages?
if os.path.isfile(cname_file):
# This GitHub pages repository has a CNAME configured.
with open(cname_file) as f:
cname_host = f.read().strip()
log.info(
f'Based on your CNAME file, your documentation should be '
f'available shortly at: http://{cname_host}'
)
log.info(
'NOTE: Your DNS records must be configured appropriately for your CNAME URL to work.'
)
return
host, path = _get_remote_url(remote_name)
if host is None or path is None:
# This could be a GitHub Enterprise deployment.
log.info('Your documentation should be available shortly.')
else:
username, repo = path.split('/', 1)
if repo.endswith('.git'):
repo = repo[: -len('.git')]
url = f'https://{username}.github.io/{repo}/'
log.info(f"Your documentation should shortly be available at: {url}")
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