renamed bootstrap.py to bootstraping.py so it differs from zc.buildout filename

--HG--
branch : distribute
extra : rebase_source : b784247763e9f8814d70ba9ffcf07ceab02a3ba4

1 files changed, 431 insertions, 0 deletions

diff --git a/bootstraping.py b/bootstraping.py
new file mode 100644
index 00000000..27b49c78
--- /dev/null
+++ b/bootstraping.py
@@ -0,0 +1,431 @@
+#!python
+"""Bootstrap distribute installation
+
+If you want to use setuptools in your package's setup.py, just include this
+file in the same directory with it, and add this to the top of your setup.py::
+
+    from ez_setup import use_setuptools
+    use_setuptools()
+
+If you want to require a specific version of setuptools, set a download
+mirror, or use an alternate download directory, you can do so by supplying
+the appropriate options to ``use_setuptools()``.
+
+This file can also be run as a script to install or upgrade setuptools.
+"""
+import sys
+import os
+import shutil
+import time
+import fnmatch
+from distutils import log
+from distutils.errors import DistutilsError
+
+is_jython = sys.platform.startswith('java')
+if is_jython:
+    import subprocess
+
+try:
+    from hashlib import md5
+except ImportError:
+    from md5 import md5
+
+DEFAULT_VERSION = "0.6"
+#DEFAULT_URL     = "http://pypi.python.org/packages/%s/d/distribute/" % sys.version[:3]
+DEFAULT_URL     = "http://nightly.ziade.org/"
+
+md5_data = {
+    'distribute-0.6-py2.3.egg': '83789f9a3b2f32c7088065f6fd3de930',
+    'distribute-0.6-py2.4.egg': '8d47e28f76d4b94de1568abed1ad585d',
+    'distribute-0.6-py2.5.egg': 'f4295ea6b57b67c30fc223c5fef229d2',
+    'distribute-0.6-py2.6.egg': 'c0d34cbce8cd509c33a788f4a5611466',
+}
+
+def _validate_md5(egg_name, data):
+    if egg_name in md5_data:
+        digest = md5(data).hexdigest()
+        if digest != md5_data[egg_name]:
+            print >>sys.stderr, (
+                "md5 validation of %s failed!  (Possible download problem?)"
+                % egg_name
+            )
+            sys.exit(2)
+    return data
+
+def use_setuptools(
+    version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
+    download_delay=15
+):
+    """Automatically find/download setuptools and make it available on sys.path
+
+    `version` should be a valid setuptools version number that is available
+    as an egg for download under the `download_base` URL (which should end with
+    a '/').  `to_dir` is the directory where setuptools will be downloaded, if
+    it is not already available.  If `download_delay` is specified, it should
+    be the number of seconds that will be paused before initiating a download,
+    should one be required.  If an older version of setuptools is installed,
+    this routine will print a message to ``sys.stderr`` and raise SystemExit in
+    an attempt to abort the calling script.
+    """
+    was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
+    def do_download():
+        egg = download_setuptools(version, download_base, to_dir, download_delay)
+        sys.path.insert(0, egg)
+        import setuptools; setuptools.bootstrap_install_from = egg
+    try:
+        import pkg_resources
+        if not hasattr(pkg_resources, '_distribute'):
+            raise ImportError
+    except ImportError:
+        return do_download()
+    try:
+        pkg_resources.require("distribute>="+version); return
+    except pkg_resources.VersionConflict, e:
+        if was_imported:
+            print >>sys.stderr, (
+            "The required version of distribute (>=%s) is not available, and\n"
+            "can't be installed while this script is running. Please install\n"
+            " a more recent version first, using 'easy_install -U distribute'."
+            "\n\n(Currently using %r)"
+            ) % (version, e.args[0])
+            sys.exit(2)
+        else:
+            del pkg_resources, sys.modules['pkg_resources']    # reload ok
+            return do_download()
+    except pkg_resources.DistributionNotFound:
+        return do_download()
+
+def download_setuptools(
+    version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
+    delay = 15
+):
+    """Download distribute from a specified location and return its filename
+
+    `version` should be a valid distribute version number that is available
+    as an egg for download under the `download_base` URL (which should end
+    with a '/'). `to_dir` is the directory where the egg will be downloaded.
+    `delay` is the number of seconds to pause before an actual download attempt.
+    """
+    import urllib2, shutil
+    egg_name = "distribute-%s-py%s.egg" % (version,sys.version[:3])
+    url = download_base + egg_name
+    saveto = os.path.join(to_dir, egg_name)
+    src = dst = None
+    if not os.path.exists(saveto):  # Avoid repeated downloads
+        try:
+            from distutils import log
+            if delay:
+                log.warn("""
+---------------------------------------------------------------------------
+This script requires distribute version %s to run (even to display
+help).  I will attempt to download it for you (from
+%s), but
+you may need to enable firewall access for this script first.
+I will start the download in %d seconds.
+
+(Note: if this machine does not have network access, please obtain the file
+
+   %s
+
+and place it in this directory before rerunning this script.)
+---------------------------------------------------------------------------""",
+                    version, download_base, delay, url
+                ); from time import sleep; sleep(delay)
+            log.warn("Downloading %s", url)
+            src = urllib2.urlopen(url)
+            # Read/write all in one block, so we don't create a corrupt file
+            # if the download is interrupted.
+            data = _validate_md5(egg_name, src.read())
+            dst = open(saveto,"wb"); dst.write(data)
+        finally:
+            if src: src.close()
+            if dst: dst.close()
+    return os.path.realpath(saveto)
+
+
+SETUPTOOLS_PKG_INFO  = """\
+Metadata-Version: 1.0
+Name: setuptools
+Version: 0.6c9
+Summary: xxxx
+Home-page: xxx
+Author: xxx
+Author-email: xxx
+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 at %s' % placeholder)
+        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):
+            patched = _patch_egg_dir(pkg_info)
+        else:
+            patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO)
+
+    if not patched:
+        log.warn('%s already patched.' % pkg_info)
+        return False
+    # 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 after_install(dist):
+    log.warn('After install bootstrap.')
+    placeholder = dist.get_command_obj('install').install_purelib
+    if not os.path.exists(placeholder):
+        log.warn('Could not find the install location')
+        return
+    pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1])
+    setuptools_file = 'setuptools-0.6c9-py%s.egg-info' % pyver
+    pkg_info = os.path.join(placeholder, setuptools_file)
+    if os.path.exists(pkg_info):
+        log.warn('%s already exists' % pkg_info)
+        return
+    log.warn('Creating %s' % pkg_info)
+    f = open(pkg_info, 'w')
+    try:
+        f.write(SETUPTOOLS_PKG_INFO)
+    finally:
+        f.close()
+    pth_file = os.path.join(placeholder, 'setuptools.pth')
+    log.warn('Creating %s' % pth_file)
+    f = open(pth_file, 'w')
+    try:
+        f.write(os.path.join(os.curdir, setuptools_file))
+    finally:
+        f.close()
+
+def _patch_egg_dir(path):
+    # let's check if it's already patched
+    pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO')
+    if os.path.exists(pkg_info):
+        if _same_content(pkg_info, SETUPTOOLS_PKG_INFO):
+            log.warn('%s already patched.' % pkg_info)
+            return False
+    _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()
+    return True
+
+def before_install():
+    log.warn('Before install bootstrap.')
+    fake_setuptools()
+
+def fake_setuptools():
+    log.warn('Scanning installed packages')
+    try:
+        import pkg_resources
+    except ImportError:
+        # we're cool
+        log.warn('Setuptools or Distribute does not seem to be installed.')
+        return
+    ws = pkg_resources.working_set
+    setuptools_dist = ws.find(pkg_resources.Requirement.parse('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)
+
+    # let's see if its an egg
+    if not setuptools_location.endswith('.egg'):
+        log.warn('Non-egg installation')
+        res = _remove_flat_installation(setuptools_location)
+        if not res:
+            return
+    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
+        res = _patch_egg_dir(setuptools_location)
+        if not res:
+            return
+    log.warn('Patched done.')
+    _relaunch()
+
+def _relaunch():
+    log.warn('Relaunching...')
+    # we have to relaunch the process
+    args = [sys.executable]  + sys.argv
+    if is_jython:
+        sys.exit(subprocess.call(args))
+    else:
+        sys.exit(os.spawnv(os.P_WAIT, sys.executable, args))
+
+def _easy_install(argv, egg=None):
+    from setuptools import setup
+    from setuptools.dist import Distribution
+    import distutils.core
+    if egg is not None:
+        setup_args = list(argv) + ['-v'] + [egg]
+    else:
+        setup_args = list(argv)
+    try:
+        return setup(script_args = ['-q','easy_install',
+                                    '-v'] + setup_args,
+                    script_name = sys.argv[0] or 'easy_install',
+                    distclass=Distribution)
+    except DistutilsError:
+        return sys.exit(2)
+
+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
+        # is from Distribute or from setuptools
+        if not hasattr(setuptools, '_distribute'):
+            # now we are ready to install distribute
+            raise ImportError
+    except ImportError:
+        egg = None
+        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]
+                if not placeholder.endswith('.egg'):
+                    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)
+            dist = _easy_install(argv, egg)
+            after_install(dist)
+            return
+            #from setuptools.command import easy_install
+            #try:
+            #    return easy_install.main(list(argv)+['-v']+[egg])
+            #except DistutilsError:
+            #    return sys.exit(2)
+        finally:
+            if egg and os.path.exists(egg):
+                os.unlink(egg)
+    else:
+        if setuptools.__version__ == '0.0.1':
+            print >>sys.stderr, (
+            "You have an obsolete version of setuptools installed.  Please\n"
+            "remove it from your system entirely before rerunning this script."
+            )
+            sys.exit(2)
+
+    req = "distribute>="+version
+    import pkg_resources
+    try:
+        pkg_resources.require(req)
+    except pkg_resources.VersionConflict:
+        try:
+            _easy_install(argv, [download_setuptools(delay=0)])
+            #from setuptools.command.easy_install import main
+        except ImportError:
+            from easy_install import main
+            main(list(argv)+[download_setuptools(delay=0)])
+        sys.exit(0) # try to force an exit
+    else:
+        if argv:
+            _easy_install(argv)
+            #from setuptools.command.easy_install import main
+            #main(argv)
+        else:
+            print "distribute version",version,"or greater has been installed."
+            print '(Run "ez_setup.py -U distribute" to reinstall or upgrade.)'
+
+def update_md5(filenames):
+    """Update our built-in md5 registry"""
+
+    import re
+
+    for name in filenames:
+        base = os.path.basename(name)
+        f = open(name,'rb')
+        md5_data[base] = md5(f.read()).hexdigest()
+        f.close()
+
+    data = ["    %r: %r,\n" % it for it in md5_data.items()]
+    data.sort()
+    repl = "".join(data)
+
+    import inspect
+    srcfile = inspect.getsourcefile(sys.modules[__name__])
+    f = open(srcfile, 'rb'); src = f.read(); f.close()
+
+    match = re.search("\nmd5_data = {\n([^}]+)}", src)
+    if not match:
+        print >>sys.stderr, "Internal error!"
+        sys.exit(2)
+
+    src = src[:match.start(1)] + repl + src[match.end(1):]
+    f = open(srcfile,'w')
+    f.write(src)
+    f.close()
+
+
+if __name__ == '__main__':
+    if len(sys.argv) > 2 and sys.argv[1] == '--md5update':
+        update_md5(sys.argv[2:])
+    else:
+        main(sys.argv[1:])
+