472 lines
14 KiB
Python
472 lines
14 KiB
Python
from __future__ import unicode_literals
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import hashlib
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import os
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import re
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import shutil
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import site
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import stat
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import subprocess
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import sys
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import tarfile
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from functools import cmp_to_key
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from gzip import GzipFile
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from cleo import argument
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from cleo import option
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from poetry.core.packages import Dependency
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from poetry.utils._compat import PY2
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from poetry.utils._compat import Path
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from ..command import Command
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try:
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from urllib.error import HTTPError
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from urllib.request import urlopen
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except ImportError:
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from urllib2 import HTTPError
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from urllib2 import urlopen
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BIN = """# -*- coding: utf-8 -*-
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import glob
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import sys
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import os
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lib = os.path.normpath(os.path.join(os.path.realpath(__file__), "../..", "lib"))
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vendors = os.path.join(lib, "poetry", "_vendor")
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current_vendors = os.path.join(
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vendors, "py{}".format(".".join(str(v) for v in sys.version_info[:2]))
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)
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sys.path.insert(0, lib)
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sys.path.insert(0, current_vendors)
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if __name__ == "__main__":
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from poetry.console import main
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main()
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"""
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BAT = '@echo off\r\n{python_executable} "{poetry_bin}" %*\r\n'
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class SelfUpdateCommand(Command):
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name = "update"
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description = "Updates Poetry to the latest version."
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arguments = [argument("version", "The version to update to.", optional=True)]
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options = [option("preview", None, "Install prereleases.")]
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REPOSITORY_URL = "https://github.com/python-poetry/poetry"
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BASE_URL = REPOSITORY_URL + "/releases/download"
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_data_dir = None
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_bin_dir = None
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_pool = None
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@property
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def home(self):
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from poetry.utils._compat import Path
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return Path(os.environ.get("POETRY_HOME", "~/.poetry")).expanduser()
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@property
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def bin(self):
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return self.home / "bin"
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@property
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def lib(self):
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return self.home / "lib"
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@property
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def lib_backup(self):
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return self.home / "lib-backup"
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@property
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def data_dir(self): # type: () -> Path
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if self._data_dir is not None:
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return self._data_dir
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from poetry.locations import data_dir
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self._data_dir = data_dir()
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return self._data_dir
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@property
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def bin_dir(self): # type: () -> Path
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if self._data_dir is not None:
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return self._data_dir
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from poetry.utils._compat import WINDOWS
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if os.getenv("POETRY_HOME"):
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return Path(os.getenv("POETRY_HOME"), "bin").expanduser()
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user_base = site.getuserbase()
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if WINDOWS:
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bin_dir = os.path.join(user_base, "Scripts")
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else:
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bin_dir = os.path.join(user_base, "bin")
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self._bin_dir = Path(bin_dir)
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return self._bin_dir
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@property
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def pool(self):
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if self._pool is not None:
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return self._pool
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from poetry.repositories.pool import Pool
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from poetry.repositories.pypi_repository import PyPiRepository
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pool = Pool()
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pool.add_repository(PyPiRepository(config=self.poetry.config, fallback=False))
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self._pool = pool
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return self._pool
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def handle(self):
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from poetry.__version__ import __version__
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from poetry.core.semver import Version
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from poetry.utils.env import EnvManager
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new_update_method = False
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try:
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self._check_recommended_installation()
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except RuntimeError as e:
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env = EnvManager.get_system_env(naive=True)
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try:
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env.path.relative_to(self.data_dir)
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except ValueError:
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raise e
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new_update_method = True
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version = self.argument("version")
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if not version:
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version = ">=" + __version__
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repo = self.pool.repositories[0]
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packages = repo.find_packages(
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Dependency("poetry", version, allows_prereleases=self.option("preview"))
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)
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if not packages:
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self.line("No release found for the specified version")
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return
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packages.sort(
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key=cmp_to_key(
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lambda x, y: 0
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if x.version == y.version
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else int(x.version < y.version or -1)
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)
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)
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release = None
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for package in packages:
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if package.is_prerelease():
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if self.option("preview"):
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release = package
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break
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continue
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release = package
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break
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if release is None:
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self.line("No new release found")
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return
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if release.version == Version.parse(__version__):
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self.line("You are using the latest version")
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return
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if new_update_method:
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return self.update_with_new_method(release.version)
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self.update(release)
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def update(self, release):
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version = release.version
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self.line("Updating to <info>{}</info>".format(version))
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if self.lib_backup.exists():
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shutil.rmtree(str(self.lib_backup))
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# Backup the current installation
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if self.lib.exists():
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shutil.copytree(str(self.lib), str(self.lib_backup))
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shutil.rmtree(str(self.lib))
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try:
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self._update(version)
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except Exception:
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if not self.lib_backup.exists():
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raise
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shutil.copytree(str(self.lib_backup), str(self.lib))
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shutil.rmtree(str(self.lib_backup))
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raise
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finally:
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if self.lib_backup.exists():
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shutil.rmtree(str(self.lib_backup))
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self.make_bin()
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self.line("")
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self.line("")
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self.line(
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"<info>Poetry</info> (<comment>{}</comment>) is installed now. Great!".format(
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version
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)
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)
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def update_with_new_method(self, version):
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self.line("Updating <c1>Poetry</c1> to <c2>{}</c2>".format(version))
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self.line("")
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self._update_with_new_method(version)
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self._make_bin()
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self.line("")
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self.line(
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"<c1>Poetry</c1> (<c2>{}</c2>) is installed now. Great!".format(version)
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)
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def _update(self, version):
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from poetry.utils.helpers import temporary_directory
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release_name = self._get_release_name(version)
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checksum = "{}.sha256sum".format(release_name)
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base_url = self.BASE_URL
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try:
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r = urlopen(base_url + "/{}/{}".format(version, checksum))
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except HTTPError as e:
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if e.code == 404:
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raise RuntimeError("Could not find {} file".format(checksum))
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raise
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checksum = r.read().decode().strip()
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# We get the payload from the remote host
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name = "{}.tar.gz".format(release_name)
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try:
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r = urlopen(base_url + "/{}/{}".format(version, name))
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except HTTPError as e:
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if e.code == 404:
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raise RuntimeError("Could not find {} file".format(name))
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raise
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meta = r.info()
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size = int(meta["Content-Length"])
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current = 0
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block_size = 8192
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bar = self.progress_bar(max=size)
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bar.set_format(" - Downloading <info>{}</> <comment>%percent%%</>".format(name))
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bar.start()
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sha = hashlib.sha256()
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with temporary_directory(prefix="poetry-updater-") as dir_:
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tar = os.path.join(dir_, name)
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with open(tar, "wb") as f:
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while True:
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buffer = r.read(block_size)
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if not buffer:
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break
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current += len(buffer)
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f.write(buffer)
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sha.update(buffer)
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bar.set_progress(current)
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bar.finish()
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# Checking hashes
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if checksum != sha.hexdigest():
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raise RuntimeError(
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"Hashes for {} do not match: {} != {}".format(
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name, checksum, sha.hexdigest()
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)
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)
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gz = GzipFile(tar, mode="rb")
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try:
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with tarfile.TarFile(tar, fileobj=gz, format=tarfile.PAX_FORMAT) as f:
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f.extractall(str(self.lib))
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finally:
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gz.close()
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def _update_with_new_method(self, version):
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from poetry.config.config import Config
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from poetry.core.packages.dependency import Dependency
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from poetry.core.packages.project_package import ProjectPackage
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from poetry.installation.installer import Installer
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from poetry.packages.locker import NullLocker
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from poetry.repositories.installed_repository import InstalledRepository
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from poetry.utils.env import EnvManager
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env = EnvManager.get_system_env(naive=True)
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installed = InstalledRepository.load(env)
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root = ProjectPackage("poetry-updater", "0.0.0")
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root.python_versions = ".".join(str(c) for c in env.version_info[:3])
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root.add_dependency(Dependency("poetry", version.text))
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installer = Installer(
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self.io,
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env,
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root,
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NullLocker(self.data_dir.joinpath("poetry.lock"), {}),
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self.pool,
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Config(),
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installed=installed,
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)
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installer.update(True)
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installer.run()
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def _make_bin(self):
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from poetry.utils._compat import WINDOWS
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self.line("")
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self.line("Updating the <c1>poetry</c1> script")
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self.bin_dir.mkdir(parents=True, exist_ok=True)
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script = "poetry"
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target_script = "venv/bin/poetry"
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if WINDOWS:
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script = "poetry.exe"
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target_script = "venv/Scripts/poetry.exe"
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if self.bin_dir.joinpath(script).exists():
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self.bin_dir.joinpath(script).unlink()
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if not PY2 and not WINDOWS:
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try:
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self.bin_dir.joinpath(script).symlink_to(
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self.data_dir.joinpath(target_script)
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)
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except OSError:
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# This can happen if the user
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# does not have the correct permission on Windows
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shutil.copy(
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self.data_dir.joinpath(target_script), self.bin_dir.joinpath(script)
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)
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else:
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shutil.copy(
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str(self.data_dir.joinpath(target_script)),
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str(self.bin_dir.joinpath(script)),
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)
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def process(self, *args):
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return subprocess.check_output(list(args), stderr=subprocess.STDOUT)
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def _check_recommended_installation(self):
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from poetry.utils._compat import Path
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current = Path(__file__)
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try:
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current.relative_to(self.home)
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except ValueError:
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raise RuntimeError(
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"Poetry was not installed with the recommended installer. "
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"Cannot update automatically."
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)
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def _get_release_name(self, version):
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platform = sys.platform
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if platform == "linux2":
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platform = "linux"
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return "poetry-{}-{}".format(version, platform)
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def _bin_path(self, base_path, bin):
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from poetry.utils._compat import WINDOWS
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if WINDOWS:
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return (base_path / "Scripts" / bin).with_suffix(".exe")
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return base_path / "bin" / bin
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def make_bin(self):
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from poetry.utils._compat import WINDOWS
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self.bin.mkdir(0o755, parents=True, exist_ok=True)
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python_executable = self._which_python()
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if WINDOWS:
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with self.bin.joinpath("poetry.bat").open("w", newline="") as f:
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f.write(
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BAT.format(
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python_executable=python_executable,
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poetry_bin=str(self.bin / "poetry").replace(
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os.environ["USERPROFILE"], "%USERPROFILE%"
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),
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)
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)
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bin_content = BIN
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if not WINDOWS:
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bin_content = "#!/usr/bin/env {}\n".format(python_executable) + bin_content
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self.bin.joinpath("poetry").write_text(bin_content, encoding="utf-8")
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if not WINDOWS:
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# Making the file executable
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st = os.stat(str(self.bin.joinpath("poetry")))
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os.chmod(str(self.bin.joinpath("poetry")), st.st_mode | stat.S_IEXEC)
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def _which_python(self):
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"""
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Decides which python executable we'll embed in the launcher script.
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"""
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from poetry.utils._compat import WINDOWS
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allowed_executables = ["python", "python3"]
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if WINDOWS:
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allowed_executables += ["py.exe -3", "py.exe -2"]
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# \d in regex ensures we can convert to int later
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version_matcher = re.compile(r"^Python (?P<major>\d+)\.(?P<minor>\d+)\..+$")
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fallback = None
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for executable in allowed_executables:
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try:
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raw_version = subprocess.check_output(
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executable + " --version", stderr=subprocess.STDOUT, shell=True
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).decode("utf-8")
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except subprocess.CalledProcessError:
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continue
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match = version_matcher.match(raw_version.strip())
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if match and tuple(map(int, match.groups())) >= (3, 0):
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# favor the first py3 executable we can find.
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return executable
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if fallback is None:
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# keep this one as the fallback; it was the first valid executable we found.
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fallback = executable
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if fallback is None:
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# Avoid breaking existing scripts
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fallback = "python"
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return fallback
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