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This is important for both ensuring the Nagios checks work correctly in production, as well as making sure the `zulip` user can access the virtualenv (owned by the `travis` user) in Travis CI.
72 lines
2.8 KiB
Python
72 lines
2.8 KiB
Python
from __future__ import print_function
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import os
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import sys
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from os.path import dirname, abspath
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import subprocess
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from zulip_tools import run
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ZULIP_PATH = dirname(dirname(dirname(abspath(__file__))))
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VENV_CACHE_PATH = "/srv/zulip-venv-cache"
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if 'TEST_SUITE' in os.environ:
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# In Travis CI, we don't have root access
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VENV_CACHE_PATH = os.path.join(os.environ['HOME'], "zulip-venv-cache")
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if False:
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# Don't add a runtime dependency on typing
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from typing import List, Optional
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VENV_DEPENDENCIES = [
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"build-essential",
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"libffi-dev",
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"libfreetype6-dev",
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"libldap2-dev",
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"libmemcached-dev",
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"postgresql-server-dev-all",
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"python3-dev", # Needed to install typed-ast dependency of mypy
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"python-dev",
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"python-pip",
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"python-virtualenv",
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]
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def setup_virtualenv(target_venv_path, requirements_file, virtualenv_args=None):
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# type: (Optional[str], str, Optional[List[str]]) -> str
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# Check if a cached version already exists
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path = os.path.join(ZULIP_PATH, 'scripts', 'lib', 'hash_reqs.py')
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output = subprocess.check_output([path, requirements_file])
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sha1sum = output.split()[0]
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if target_venv_path is None:
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cached_venv_path = os.path.join(VENV_CACHE_PATH, sha1sum, 'venv')
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else:
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cached_venv_path = os.path.join(VENV_CACHE_PATH, sha1sum, os.path.basename(target_venv_path))
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success_stamp = os.path.join(cached_venv_path, "success-stamp")
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if not os.path.exists(success_stamp):
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do_setup_virtualenv(cached_venv_path, requirements_file, virtualenv_args or [])
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run(["touch", success_stamp])
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print("Using cached Python venv from %s" % (cached_venv_path,))
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if target_venv_path is not None:
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run(["sudo", "ln", "-nsf", cached_venv_path, target_venv_path])
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activate_this = os.path.join(cached_venv_path, "bin", "activate_this.py")
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exec(open(activate_this).read(), {}, dict(__file__=activate_this)) # type: ignore # https://github.com/python/mypy/issues/1577
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return cached_venv_path
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def do_setup_virtualenv(venv_path, requirements_file, virtualenv_args):
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# type: (str, str, List[str]) -> None
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# Setup Python virtualenv
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run(["sudo", "rm", "-rf", venv_path])
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run(["sudo", "mkdir", "-p", venv_path])
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run(["sudo", "chown", "{}:{}".format(os.getuid(), os.getgid()), venv_path])
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run(["virtualenv"] + virtualenv_args + [venv_path])
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# Switch current Python context to the virtualenv.
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activate_this = os.path.join(venv_path, "bin", "activate_this.py")
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exec(open(activate_this).read(), {}, dict(__file__=activate_this)) # type: ignore # https://github.com/python/mypy/issues/1577
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run(["pip", "install", "--upgrade", "pip"])
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run(["pip", "install", "--no-deps", "--requirement", requirements_file])
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run(["sudo", "chmod", "-R", "a+rX", venv_path])
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