diff --git a/Lib/ensurepip/__init__.py b/Lib/ensurepip/__init__.py
index 5021ebf..63c763a 100644
--- a/Lib/ensurepip/__init__.py
+++ b/Lib/ensurepip/__init__.py
@@ -7,6 +7,7 @@ import pkgutil
import shutil
import sys
import tempfile
+from ensurepip import rewheel
__all__ = ["version", "bootstrap"]
@@ -29,6 +30,8 @@ def _run_pip(args, additional_paths=None):
# Install the bundled software
import pip._internal
+ if args[0] in ["install", "list", "wheel"]:
+ args.append('--pre')
return pip._internal.main(args)
@@ -93,21 +96,40 @@ def _bootstrap(root=None, upgrade=False, user=False,
# omit pip and easy_install
os.environ["ENSUREPIP_OPTIONS"] = "install"
+ whls = []
+ rewheel_dir = None
+ # try to see if we have system-wide versions of _PROJECTS
+ dep_records = rewheel.find_system_records([p[0] for p in _PROJECTS])
+ # TODO: check if system-wide versions are the newest ones
+ # if --upgrade is used?
+ if all(dep_records):
+ # if we have all _PROJECTS installed system-wide, we'll recreate
+ # wheels from them and install those
+ rewheel_dir = tempfile.mkdtemp()
+ for dr in dep_records:
+ new_whl = rewheel.rewheel_from_record(dr, rewheel_dir)
+ whls.append(os.path.join(rewheel_dir, new_whl))
+ else:
+ # if we don't have all the _PROJECTS installed system-wide,
+ # let's just fall back to bundled wheels
+ for project, version in _PROJECTS:
+ whl = os.path.join(
+ os.path.dirname(__file__),
+ "_bundled",
+ "{}-{}-py2.py3-none-any.whl".format(project, version)
+ )
+ whls.append(whl)
+
tmpdir = tempfile.mkdtemp()
try:
# Put our bundled wheels into a temporary directory and construct the
# additional paths that need added to sys.path
additional_paths = []
- for project, version in _PROJECTS:
- wheel_name = "{}-{}-py2.py3-none-any.whl".format(project, version)
- whl = pkgutil.get_data(
- "ensurepip",
- "_bundled/{}".format(wheel_name),
- )
- with open(os.path.join(tmpdir, wheel_name), "wb") as fp:
- fp.write(whl)
-
- additional_paths.append(os.path.join(tmpdir, wheel_name))
+ for whl in whls:
+ shutil.copy(whl, tmpdir)
+ additional_paths.append(os.path.join(tmpdir, os.path.basename(whl)))
+ if rewheel_dir:
+ shutil.rmtree(rewheel_dir)
# Construct the arguments to be passed to the pip command
args = ["install", "--no-index", "--find-links", tmpdir]
diff --git a/Lib/ensurepip/rewheel/__init__.py b/Lib/ensurepip/rewheel/__init__.py
new file mode 100644
index 0000000..75c2094
--- /dev/null
+++ b/Lib/ensurepip/rewheel/__init__.py
@@ -0,0 +1,158 @@
+import argparse
+import codecs
+import csv
+import email.parser
+import os
+import io
+import re
+import site
+import subprocess
+import sys
+import zipfile
+
+def run():
+ parser = argparse.ArgumentParser(description='Recreate wheel of package with given RECORD.')
+ parser.add_argument('record_path',
+ help='Path to RECORD file')
+ parser.add_argument('-o', '--output-dir',
+ help='Dir where to place the wheel, defaults to current working dir.',
+ dest='outdir',
+ default=os.path.curdir)
+
+ ns = parser.parse_args()
+ retcode = 0
+ try:
+ print(rewheel_from_record(**vars(ns)))
+ except BaseException as e:
+ print('Failed: {}'.format(e))
+ retcode = 1
+ sys.exit(1)
+
+def find_system_records(projects):
+ """Return list of paths to RECORD files for system-installed projects.
+
+ If a project is not installed, the resulting list contains None instead
+ of a path to its RECORD
+ """
+ records = []
+ # get system site-packages dirs
+ if hasattr(sys, 'real_prefix'):
+ #we are in python2 virtualenv and sys.real_prefix is the original sys.prefix
+ _orig_prefixes = site.PREFIXES
+ setattr(site, 'PREFIXES', [sys.real_prefix]*2)
+ sys_sitepack = site.getsitepackages()
+ setattr(site, 'PREFIXES', _orig_prefixes)
+ elif hasattr(sys, 'base_prefix'): # python3 venv doesn't inject real_prefix to sys
+ # we are on python3 and base(_exec)_prefix is unchanged in venv
+ sys_sitepack = site.getsitepackages([sys.base_prefix, sys.base_exec_prefix])
+ else:
+ # we are in python2 without virtualenv
+ sys_sitepack = site.getsitepackages()
+
+ sys_sitepack = [sp for sp in sys_sitepack if os.path.exists(sp)]
+ # try to find all projects in all system site-packages
+ for project in projects:
+ path = None
+ for sp in sys_sitepack:
+ dist_info_re = os.path.join(sp, project) + '-[^\{0}]+\.dist-info'.format(os.sep)
+ candidates = [os.path.join(sp, p) for p in os.listdir(sp)]
+ # filter out candidate dirs based on the above regexp
+ filtered = [c for c in candidates if re.match(dist_info_re, c)]
+ # if we have 0 or 2 or more dirs, something is wrong...
+ if len(filtered) == 1:
+ path = filtered[0]
+ if path is not None:
+ records.append(os.path.join(path, 'RECORD'))
+ else:
+ records.append(None)
+ return records
+
+def rewheel_from_record(record_path, outdir):
+ """Recreates a whee of package with given record_path and returns path
+ to the newly created wheel."""
+ site_dir = os.path.dirname(os.path.dirname(record_path))
+ record_relpath = record_path[len(site_dir):].strip(os.path.sep)
+ to_write, to_omit = get_records_to_pack(site_dir, record_relpath)
+ new_wheel_name = get_wheel_name(record_path)
+ new_wheel_path = os.path.join(outdir, new_wheel_name + '.whl')
+
+ new_wheel = zipfile.ZipFile(new_wheel_path, mode='w', compression=zipfile.ZIP_DEFLATED)
+ # we need to write a new record with just the files that we will write,
+ # e.g. not binaries and *.pyc/*.pyo files
+ if sys.version_info[0] < 3:
+ new_record = io.BytesIO()
+ else:
+ new_record = io.StringIO()
+ writer = csv.writer(new_record)
+
+ # handle files that we can write straight away
+ for f, sha_hash, size in to_write:
+ new_wheel.write(os.path.join(site_dir, f), arcname=f)
+ writer.writerow([f, sha_hash,size])
+
+ # rewrite the old wheel file with a new computed one
+ writer.writerow([record_relpath, '', ''])
+ new_wheel.writestr(record_relpath, new_record.getvalue())
+
+ new_wheel.close()
+
+ return new_wheel.filename
+
+def get_wheel_name(record_path):
+ """Return proper name of the wheel, without .whl."""
+
+ wheel_info_path = os.path.join(os.path.dirname(record_path), 'WHEEL')
+ with codecs.open(wheel_info_path, encoding='utf-8') as wheel_info_file:
+ wheel_info = email.parser.Parser().parsestr(wheel_info_file.read().encode('utf-8'))
+
+ metadata_path = os.path.join(os.path.dirname(record_path), 'METADATA')
+ with codecs.open(metadata_path, encoding='utf-8') as metadata_file:
+ metadata = email.parser.Parser().parsestr(metadata_file.read().encode('utf-8'))
+
+ # construct name parts according to wheel spec
+ distribution = metadata.get('Name')
+ version = metadata.get('Version')
+ build_tag = '' # nothing for now
+ lang_tag = []
+ for t in wheel_info.get_all('Tag'):
+ lang_tag.append(t.split('-')[0])
+ lang_tag = '.'.join(lang_tag)
+ abi_tag, plat_tag = wheel_info.get('Tag').split('-')[1:3]
+ # leave out build tag, if it is empty
+ to_join = filter(None, [distribution, version, build_tag, lang_tag, abi_tag, plat_tag])
+ return '-'.join(list(to_join))
+
+def get_records_to_pack(site_dir, record_relpath):
+ """Accepts path of sitedir and path of RECORD file relative to it.
+ Returns two lists:
+ - list of files that can be written to new RECORD straight away
+ - list of files that shouldn't be written or need some processing
+ (pyc and pyo files, scripts)
+ """
+ record_file_path = os.path.join(site_dir, record_relpath)
+ with codecs.open(record_file_path, encoding='utf-8') as record_file:
+ record_contents = record_file.read()
+ # temporary fix for https://github.com/pypa/pip/issues/1376
+ # we need to ignore files under ".data" directory
+ data_dir = os.path.dirname(record_relpath).strip(os.path.sep)
+ data_dir = data_dir[:-len('dist-info')] + 'data'
+
+ to_write = []
+ to_omit = []
+ for l in record_contents.splitlines():
+ spl = l.split(',')
+ if len(spl) == 3:
+ # new record will omit (or write differently):
+ # - abs paths, paths with ".." (entry points),
+ # - pyc+pyo files
+ # - the old RECORD file
+ # TODO: is there any better way to recognize an entry point?
+ if os.path.isabs(spl[0]) or spl[0].startswith('..') or \
+ spl[0].endswith('.pyc') or spl[0].endswith('.pyo') or \
+ spl[0] == record_relpath or spl[0].startswith(data_dir):
+ to_omit.append(spl)
+ else:
+ to_write.append(spl)
+ else:
+ pass # bad RECORD or empty line
+ return to_write, to_omit
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 877698c..2c43611 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -1065,7 +1065,7 @@ LIBSUBDIRS= lib-tk lib-tk/test lib-tk/test/test_tkinter \
test/tracedmodules \
encodings compiler hotshot \
email email/mime email/test email/test/data \
- ensurepip ensurepip/_bundled \
+ ensurepip ensurepip/_bundled ensurepip/rewheel\
json json/tests \
sqlite3 sqlite3/test \
logging bsddb bsddb/test csv importlib wsgiref \