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#
# Common entry point to access a temporary directory (for testing, etc.)
# This uses the py lib's logic to create numbered directories. The last
# three temporary directories are kept.
#
# The udir is created with the following name:
#
# $PYPY_USESSION_DIR/usession-$PYPY_USESSION_BASENAME-N
#
# where N is a small number. If supported, a symlink is created for
# convenience too, pointing to (the most recent) udir:
#
# $PYPY_USESSION_DIR/usession-$PYPY_USESSION_BASENAME-$USER
#
# The default value for $PYPY_USESSION_DIR is the system's tmp.
# The default value for $PYPY_USESSION_BASENAME is the name
# of the current Mercurial branch.
#
import os
import sys
from rpython.tool.version import get_repo_version_info
from py.path import local
PYPY_KEEP = int(os.environ.get('PYPY_USESSION_KEEP', '3'))
def make_udir(dir=None, basename=None):
if dir is not None:
dir = local(dir)
if basename is None:
info = get_repo_version_info()
if info:
hgtag, hgid = info
basename = hgtag
if basename == '?':
basename = 'unknown' # directories with ? are not fun
# especially on windows
else:
basename = ''
basename = basename.replace('/', '--')
if not basename.startswith('-'):
basename = '-' + basename
if not basename.endswith('-'):
basename = basename + '-'
return local.make_numbered_dir(rootdir = dir,
prefix = 'usession' + basename,
keep = PYPY_KEEP)
udir = make_udir(dir = os.environ.get('PYPY_USESSION_DIR'),
basename = os.environ.get('PYPY_USESSION_BASENAME'))
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