diff options
| -rw-r--r-- | bootstrap.py | 118 |
1 files changed, 98 insertions, 20 deletions
diff --git a/bootstrap.py b/bootstrap.py index a069c95c..b0de9366 100644 --- a/bootstrap.py +++ b/bootstrap.py @@ -17,6 +17,8 @@ import sys import os import shutil import time +import fnmatch +from distutils import log is_jython = sys.platform.startswith('java') if is_jython: @@ -152,8 +154,74 @@ License: xxx Description: xxx """ +def _patch_file(path, content): + """Will backup the file then patch it""" + existing_content = open(path).read() + if existing_content == content: + # already patched + log.warn('Already patched.') + return False + log.warn('Patching...') + os.rename(path, path +'.OLD.%s' % time.time()) + f = open(path, 'w') + try: + f.write(content) + finally: + f.close() + return True + +def _same_content(path, content): + return open(path).read() == content + +def _rename_path(path): + new_name = path + '.OLD.%s' % time.time() + log.warn('Renaming %s into %s' % (path, new_name)) + os.rename(path, new_name) + return new_name + +def _remove_flat_installation(placeholder): + if not os.path.isdir(placeholder): + log.warn('Unkown installation') + return False + found = False + for file in os.listdir(placeholder): + if fnmatch.fnmatch(file, 'setuptools*.egg-info'): + found = True + break + if not found: + log.warn('Could not locate setuptools*.egg-info') + else: + log.warn('Removing elements out of the way...') + pkg_info = os.path.join(placeholder, file) + if os.path.isdir(pkg_info): + _patch_egg_dir(pkg_info) + else: + patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO) + if not patched: + log.warn('%s already patched.' % pkg_info) + + # now let's move the files out of the way + for element in ('setuptools', 'pkg_resources.py', 'site.py'): + element = os.path.join(placeholder, element) + if os.path.exists(element): + _rename_path(element) + else: + log.warn('Could not find the %s element of the ' + 'Setuptools distribution' % element) + return True + +def _patch_egg_dir(path): + _rename_path(path) + os.mkdir(path) + os.mkdir(os.path.join(path, 'EGG-INFO')) + pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') + f = open(pkg_info, 'w') + try: + f.write(SETUPTOOLS_PKG_INFO) + finally: + f.close() + def fake_setuptools(): - from distutils import log log.warn('Scanning installed packages') try: import pkg_resources @@ -166,30 +234,29 @@ def fake_setuptools(): if setuptools_dist is None: log.warn('No setuptools distribution found') return - # detecting if it was already faked setuptools_location = setuptools_dist.location log.warn('Setuptools installation detected at %s' % setuptools_location) - pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') - if os.path.exists(pkg_info): - content = open(pkg_info).read() - if SETUPTOOLS_PKG_INFO == content: - # already patched + + # let's see if its an egg until this supports non-egg installation + if not setuptools_location.endswith('.egg'): + log.warn('Non-egg installation') + _remove_flat_installation(setuptools_location) + else: + log.warn('Egg installation') + pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') + if (os.path.exists(pkg_info) and + _same_content(pkg_info, SETUPTOOLS_PKG_INFO)): log.warn('Already patched.') return + log.warn('Patching...') + # let's create a fake egg replacing setuptools one + _patch_egg_dir(setuptools_location) - log.warn('Patching...') - # let's create a fake egg replacing setuptools one - os.rename(setuptools_location, setuptools_location+'.OLD.%s' % time.time()) - os.mkdir(setuptools_location) - os.mkdir(os.path.join(setuptools_location, 'EGG-INFO')) - pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') - f = open(pkg_info, 'w') - try: - f.write(SETUPTOOLS_PKG_INFO) - finally: - f.close() log.warn('Patched done.') + _relaunch() + +def _relaunch(): log.warn('Relaunching...') # we have to relaunch the process args = [sys.executable] + sys.argv @@ -200,10 +267,8 @@ def fake_setuptools(): def main(argv, version=DEFAULT_VERSION): """Install or upgrade setuptools and EasyInstall""" - # let's deactivate any existing setuptools installation first fake_setuptools() - try: import setuptools # we need to check if the installed setuptools @@ -216,6 +281,19 @@ def main(argv, version=DEFAULT_VERSION): try: egg = download_setuptools(version, delay=0) sys.path.insert(0, egg) + import setuptools + if not hasattr(setuptools, '_distribute'): + placeholder = os.path.split(os.path.dirname(setuptools.__file__))[0] + res = _remove_flat_installation(placeholder) + if res: + _relaunch() + print >> sys.stderr, ( + "The patch didn't work, Setuptools is still active.\n" + "Possible reason: your have a system-wide setuptools installed " + "and you are in a virtualenv.\n" + "If you are inside a virtualenv, make sure you used the --no-site-packages option" + ) + sys.exit(2) from setuptools.command import easy_install return easy_install.main(list(argv)+['-v']+[egg]) finally: |