mirror of
https://github.com/mongodb/mongo.git
synced 2024-11-24 08:30:56 +01:00
334 lines
13 KiB
Python
334 lines
13 KiB
Python
#!/usr/bin/env python
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import re
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import sys
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import os
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import tempfile
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import subprocess
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import json
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import urlparse
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import tarfile
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import signal
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import threading
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import traceback
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import shutil
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import errno
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from contextlib import closing
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# To ensure it exists on the system
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import zipfile
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#
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# Useful script for installing multiple versions of MongoDB on a machine
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# Only really tested/works on Linux.
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#
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def dump_stacks(signal, frame):
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print "======================================"
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print "DUMPING STACKS due to SIGUSR1 signal"
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print "======================================"
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threads = threading.enumerate();
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print "Total Threads: " + str(len(threads))
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for id, stack in sys._current_frames().items():
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print "Thread %d" % (id)
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print "".join(traceback.format_stack(stack))
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print "======================================"
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def version_tuple(version):
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"""Returns a version tuple that can be used for numeric sorting
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of version strings such as '2.6.0-rc1' and '2.4.0'"""
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RC_OFFSET = -100
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version_parts = re.split(r'\.|-', version[0])
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if version_parts[-1] == "pre":
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# Prior to improvements for how the version string is managed within the server
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# (SERVER-17782), the binary archives would contain a trailing "-pre".
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version_parts.pop()
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if version_parts[-1].startswith("rc"):
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rc_part = version_parts.pop()
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rc_part = rc_part.split('rc')[1]
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# RC versions are weighted down to allow future RCs and general
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# releases to be sorted in ascending order (e.g., 2.6.0-rc1,
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# 2.6.0-rc2, 2.6.0).
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version_parts.append(int(rc_part) + RC_OFFSET)
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elif version_parts[0].startswith("v") and version_parts[-1] == "latest":
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version_parts[0] = version_parts[0][1:]
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# The "<branchname>-latest" versions are weighted the highest when a particular major
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# release is requested.
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version_parts[-1] = float("inf")
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else:
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# Non-RC releases have an extra 0 appended so version tuples like
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# (2, 6, 0, -100) and (2, 6, 0, 0) sort in ascending order.
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version_parts.append(0)
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return tuple(map(float, version_parts))
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def download_file(url, file_name):
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"""Returns True if download was successful. Raises error if download fails."""
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proc = subprocess.Popen(["curl",
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"-L", "--silent",
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"--retry", "5",
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"--retry-max-time", "600",
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"--max-time", "120",
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"-o", file_name,
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url],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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proc.communicate()
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error_code = proc.returncode
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if not error_code:
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error_code = proc.wait()
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if not error_code:
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return True
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raise Exception("Failed to download %s with error %d" % (url, error_code))
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class MultiVersionDownloader :
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def __init__(self, install_dir, link_dir, edition, platform_arch):
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self.install_dir = install_dir
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self.link_dir = link_dir
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self.edition = edition
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match = re.compile("(.*)\/(.*)").match(platform_arch)
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if match:
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self.platform_arch = match.group(1).lower() + "_" + match.group(2).lower()
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else:
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self.platform_arch = platform_arch.lower()
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self._links = None
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@property
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def links(self):
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if self._links is None:
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self._links = self.download_links()
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return self._links
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def download_links(self):
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temp_file = tempfile.mktemp()
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download_file("https://downloads.mongodb.org/full.json", temp_file)
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with open(temp_file) as f:
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full_json = json.load(f)
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os.remove(temp_file)
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if 'versions' not in full_json:
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raise Exception("No versions field in JSON: \n" + str(full_json))
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links = {}
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for json_version in full_json['versions']:
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if 'version' in json_version and 'downloads' in json_version:
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for download in json_version['downloads']:
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if 'target' in download and 'edition' in download and \
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download['target'] == self.platform_arch and \
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download['edition'] == self.edition:
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links[json_version['version']] = download['archive']['url']
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return links
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def download_version(self, version):
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try:
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os.makedirs(self.install_dir)
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except OSError as exc:
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if exc.errno == errno.EEXIST and os.path.isdir(self.install_dir):
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pass
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else: raise
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urls = []
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for link_version, link_url in self.links.iteritems():
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if link_version.startswith(version) or link_version == "v%s-latest" % (version):
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# The 'link_version' is a candidate for the requested 'version' if
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# (a) it is a prefix of the requested version, or if
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# (b) it is the "<branchname>-latest" version and the requested version is for a
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# particular major release.
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if "-" in version:
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# The requested 'version' contains a hyphen, so we only consider exact matches
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# to that version.
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if link_version != version:
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continue
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urls.append((link_version, link_url))
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if len(urls) == 0:
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raise Exception("Cannot find a link for version %s, versions %s found." \
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% (version, self.links))
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urls.sort(key=version_tuple)
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full_version = urls[-1][0]
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url = urls[-1][1]
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extract_dir = url.split("/")[-1][:-4]
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file_suffix = os.path.splitext(urlparse.urlparse(url).path)[1]
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# only download if we don't already have the directory
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already_downloaded = os.path.isdir(os.path.join( self.install_dir, extract_dir))
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if already_downloaded:
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print "Skipping download for version %s (%s) since the dest already exists '%s'" \
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% (version, full_version, extract_dir)
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else:
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print "Downloading data for version %s (%s)..." % (version, full_version)
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print "Download url is %s" % url
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temp_dir = tempfile.mkdtemp()
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temp_file = tempfile.mktemp(suffix=file_suffix)
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download_file(url, temp_file)
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print "Uncompressing data for version %s (%s)..." % (version, full_version)
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first_file = ''
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if file_suffix == ".zip":
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# Support .zip downloads, used for Windows binaries.
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with zipfile.ZipFile(temp_file) as zf:
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# Use the name of the root directory in the archive as the name of the directory
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# to extract the binaries into inside 'self.install_dir'. The name of the root
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# directory nearly always matches the parsed URL text, with the exception of
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# versions such as "v3.2-latest" that instead contain the githash.
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first_file = zf.namelist()[0]
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zf.extractall(temp_dir)
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elif file_suffix == ".tgz":
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# Support .tgz downloads, used for Linux binaries.
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with closing(tarfile.open(temp_file, 'r:gz')) as tf:
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# Use the name of the root directory in the archive as the name of the directory
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# to extract the binaries into inside 'self.install_dir'. The name of the root
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# directory nearly always matches the parsed URL text, with the exception of
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# versions such as "v3.2-latest" that instead contain the githash.
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first_file = tf.getnames()[0]
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tf.extractall(path=temp_dir)
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else:
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raise Exception("Unsupported file extension %s" % file_suffix)
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# Sometimes the zip will contain the root directory as the first file and
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# os.path.dirname() will return ''.
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extract_dir = os.path.dirname(first_file)
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if not extract_dir:
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extract_dir = first_file
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temp_install_dir = os.path.join(temp_dir, extract_dir)
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# We may not have been able to determine whether we already downloaded the requested
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# version due to the ambiguity in the parsed URL text, so we check for it again using
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# the adjusted 'extract_dir' value.
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already_downloaded = os.path.isdir(os.path.join(self.install_dir, extract_dir))
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if not already_downloaded:
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shutil.move(temp_install_dir, self.install_dir)
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shutil.rmtree(temp_dir)
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os.remove(temp_file)
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self.symlink_version(version, os.path.abspath(os.path.join(self.install_dir, extract_dir)))
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def symlink_version(self, version, installed_dir):
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try:
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os.makedirs(self.link_dir)
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except OSError as exc:
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if exc.errno == errno.EEXIST and os.path.isdir(self.link_dir):
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pass
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else: raise
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for executable in os.listdir(os.path.join(installed_dir, "bin")):
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executable_name, executable_extension = os.path.splitext(executable)
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link_name = "%s-%s%s" % (executable_name, version, executable_extension)
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try:
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executable = os.path.join(installed_dir, "bin", executable)
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executable_link = os.path.join(self.link_dir, link_name)
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if os.name == "nt":
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# os.symlink is not supported on Windows, use a direct method instead.
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def symlink_ms(source, link_name):
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import ctypes
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csl = ctypes.windll.kernel32.CreateSymbolicLinkW
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csl.argtypes = (ctypes.c_wchar_p, ctypes.c_wchar_p, ctypes.c_uint32)
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csl.restype = ctypes.c_ubyte
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flags = 1 if os.path.isdir(source) else 0
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if csl(link_name, source.replace('/', '\\'), flags) == 0:
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raise ctypes.WinError()
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os.symlink = symlink_ms
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os.symlink(executable, executable_link)
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except OSError as exc:
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if exc.errno == errno.EEXIST:
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pass
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else: raise
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CL_HELP_MESSAGE = \
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"""
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Downloads and installs particular mongodb versions (each binary is renamed to include its version)
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into an install directory and symlinks the binaries with versions to another directory. This script
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supports community and enterprise builds.
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Usage: setup_multiversion_mongodb.py INSTALL_DIR LINK_DIR EDITION PLATFORM_AND_ARCH VERSION1 [VERSION2 VERSION3 ...]
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EDITION is one of the following:
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base (generic community builds)
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enterprise
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targeted (platform specific community builds, includes SSL)
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PLATFORM_AND_ARCH can be specified with just a platform, i.e., OSX, if it is supported.
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Ex: setup_multiversion_mongodb.py ./install ./link base "Linux/x86_64" "2.0.6" "2.0.3-rc0" "2.0" "2.2" "2.3"
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Ex: setup_multiversion_mongodb.py ./install ./link enterprise "OSX" "2.4" "2.2"
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After running the script you will have a directory structure like this:
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./install/[mongodb-osx-x86_64-2.4.9, mongodb-osx-x86_64-2.2.7]
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./link/[mongod-2.4.9, mongod-2.2.7, mongo-2.4.9...]
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You should then add ./link/ to your path so multi-version tests will work.
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Note: If "rc" is included in the version name, we'll use the exact rc, otherwise we'll pull the highest non-rc
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version compatible with the version specified.
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"""
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def parse_cl_args(args):
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def raise_exception(msg):
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print CL_HELP_MESSAGE
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raise Exception(msg)
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if len(args) == 0: raise_exception("Missing INSTALL_DIR")
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install_dir = args[0]
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args = args[1:]
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if len(args) == 0: raise_exception("Missing LINK_DIR")
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link_dir = args[0]
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args = args[1:]
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if len(args) == 0: raise_exception("Missing EDITION")
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edition = args[0]
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if edition not in ['base', 'enterprise', 'targeted']:
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raise Exception("Unsupported edition %s" % edition)
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args = args[1:]
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if len(args) == 0: raise_exception("Missing PLATFORM_AND_ARCH")
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platform_arch = args[0]
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args = args[1:]
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if len(args) == 0: raise_exception("Missing VERSION1")
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versions = args
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return (MultiVersionDownloader(install_dir, link_dir, edition, platform_arch), versions)
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def main():
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# Listen for SIGUSR1 and dump stack if received.
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try:
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signal.signal(signal.SIGUSR1, dump_stacks)
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except AttributeError:
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print "Cannot catch signals on Windows"
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downloader, versions = parse_cl_args(sys.argv[1:])
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for version in versions:
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downloader.download_version(version)
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if __name__ == '__main__':
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main()
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