80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
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# Copyright © 2023 Vulcanize
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http:#www.gnu.org/licenses/>.
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import click
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import datetime
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import filecmp
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import os
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from pathlib import Path
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import requests
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import sys
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import stat
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import shutil
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import validators
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from app.util import get_yaml
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def _download_url(url: str, file_path: Path):
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r = requests.get(url, stream=True)
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r.raw.decode_content = True
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with open(file_path, 'wb') as f:
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shutil.copyfileobj(r.raw, f)
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def _error_exit(s: str):
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print(s)
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sys.exit(1)
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# Note at present this probably won't work on non-Unix based OSes like Windows
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@click.command()
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@click.option("--check-only", is_flag=True, default=False, help="only check, don't update")
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@click.pass_context
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def command(ctx, check_only):
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'''update shiv binary from a distribution url'''
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# Get the distribution URL from config
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config_key = 'distribution-url'
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config_file_path = Path(os.path.expanduser("~/.laconic-so/config.yml"))
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if not config_file_path.exists():
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_error_exit(f"Error: Config file: {config_file_path} not found")
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yaml = get_yaml()
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config = yaml.load(open(config_file_path, "r"))
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if "distribution-url" not in config:
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_error_exit(f"Error: {config_key} not defined in {config_file_path}")
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distribution_url = config[config_key]
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# Sanity check the URL
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if not validators.url(distribution_url):
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_error_exit(f"ERROR: distribution url: {distribution_url} is not valid")
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# Figure out the filename for ourselves
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shiv_binary_path = Path(sys.argv[0])
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timestamp_filename = f"laconic-so-download-{datetime.datetime.now().strftime('%y%m%d-%H%M%S')}"
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temp_download_path = shiv_binary_path.parent.joinpath(timestamp_filename)
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# Download the file to a temp filename
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if ctx.obj.verbose:
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print(f"Downloading from: {distribution_url} to {temp_download_path}")
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_download_url(distribution_url, temp_download_path)
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# Set the executable bit
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existing_mode = os.stat(temp_download_path)
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os.chmod(temp_download_path, existing_mode.st_mode | stat.S_IXUSR)
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# Switch the new file for the path we ran from
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# Check if the downloaded file is identical to the existing one
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same = filecmp.cmp(temp_download_path, shiv_binary_path)
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if same:
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if not ctx.obj.quiet:
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print("Up update available, latest version already installed")
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if ctx.obj.verbose:
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print(f"Replacing: {shiv_binary_path} with {temp_download_path}")
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os.replace(temp_download_path, shiv_binary_path)
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