--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/distribute_setup.py	Tue Feb 18 00:15:43 2014 +0100
@@ -0,0 +1,556 @@
+#!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 distribute_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 os
+import shutil
+import sys
+import time
+import fnmatch
+import tempfile
+import tarfile
+import optparse
+
+from distutils import log
+
+try:
+    from site import USER_SITE
+except ImportError:
+    USER_SITE = None
+
+try:
+    import subprocess
+
+    def _python_cmd(*args):
+        args = (sys.executable,) + args
+        return subprocess.call(args) == 0
+
+except ImportError:
+    # will be used for python 2.3
+    def _python_cmd(*args):
+        args = (sys.executable,) + args
+        # quoting arguments if windows
+        if sys.platform == 'win32':
+            def quote(arg):
+                if ' ' in arg:
+                    return '"%s"' % arg
+                return arg
+            args = [quote(arg) for arg in args]
+        return os.spawnl(os.P_WAIT, sys.executable, *args) == 0
+
+DEFAULT_VERSION = "0.6.49"
+DEFAULT_URL = "http://pypi.python.org/packages/source/d/distribute/"
+SETUPTOOLS_FAKED_VERSION = "0.6c11"
+
+SETUPTOOLS_PKG_INFO = """\
+Metadata-Version: 1.0
+Name: setuptools
+Version: %s
+Summary: xxxx
+Home-page: xxx
+Author: xxx
+Author-email: xxx
+License: xxx
+Description: xxx
+""" % SETUPTOOLS_FAKED_VERSION
+
+
+def _install(tarball, install_args=()):
+    # extracting the tarball
+    tmpdir = tempfile.mkdtemp()
+    log.warn('Extracting in %s', tmpdir)
+    old_wd = os.getcwd()
+    try:
+        os.chdir(tmpdir)
+        tar = tarfile.open(tarball)
+        _extractall(tar)
+        tar.close()
+
+        # going in the directory
+        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
+        os.chdir(subdir)
+        log.warn('Now working in %s', subdir)
+
+        # installing
+        log.warn('Installing Distribute')
+        if not _python_cmd('setup.py', 'install', *install_args):
+            log.warn('Something went wrong during the installation.')
+            log.warn('See the error message above.')
+            # exitcode will be 2
+            return 2
+    finally:
+        os.chdir(old_wd)
+        shutil.rmtree(tmpdir)
+
+
+def _build_egg(egg, tarball, to_dir):
+    # extracting the tarball
+    tmpdir = tempfile.mkdtemp()
+    log.warn('Extracting in %s', tmpdir)
+    old_wd = os.getcwd()
+    try:
+        os.chdir(tmpdir)
+        tar = tarfile.open(tarball)
+        _extractall(tar)
+        tar.close()
+
+        # going in the directory
+        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
+        os.chdir(subdir)
+        log.warn('Now working in %s', subdir)
+
+        # building an egg
+        log.warn('Building a Distribute egg in %s', to_dir)
+        _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
+
+    finally:
+        os.chdir(old_wd)
+        shutil.rmtree(tmpdir)
+    # returning the result
+    log.warn(egg)
+    if not os.path.exists(egg):
+        raise IOError('Could not build the egg.')
+
+
+def _do_download(version, download_base, to_dir, download_delay):
+    egg = os.path.join(to_dir, 'distribute-%s-py%d.%d.egg'
+                       % (version, sys.version_info[0], sys.version_info[1]))
+    if not os.path.exists(egg):
+        tarball = download_setuptools(version, download_base,
+                                      to_dir, download_delay)
+        _build_egg(egg, tarball, to_dir)
+    sys.path.insert(0, egg)
+    import setuptools
+    setuptools.bootstrap_install_from = egg
+
+
+def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
+                   to_dir=os.curdir, download_delay=15, no_fake=True):
+    # making sure we use the absolute path
+    to_dir = os.path.abspath(to_dir)
+    was_imported = 'pkg_resources' in sys.modules or \
+        'setuptools' in sys.modules
+    try:
+        try:
+            import pkg_resources
+
+            # Setuptools 0.7b and later is a suitable (and preferable)
+            # substitute for any Distribute version.
+            try:
+                pkg_resources.require("setuptools>=0.7b")
+                return
+            except (pkg_resources.DistributionNotFound,
+                    pkg_resources.VersionConflict):
+                pass
+
+            if not hasattr(pkg_resources, '_distribute'):
+                if not no_fake:
+                    _fake_setuptools()
+                raise ImportError
+        except ImportError:
+            return _do_download(version, download_base, to_dir, download_delay)
+        try:
+            pkg_resources.require("distribute>=" + version)
+            return
+        except pkg_resources.VersionConflict:
+            e = sys.exc_info()[1]
+            if was_imported:
+                sys.stderr.write(
+                "The required version of distribute (>=%s) is not available,\n"
+                "and can't be installed while this script is running. Please\n"
+                "install a more recent version first, using\n"
+                "'easy_install -U distribute'."
+                "\n\n(Currently using %r)\n" % (version, e.args[0]))
+                sys.exit(2)
+            else:
+                del pkg_resources, sys.modules['pkg_resources']    # reload ok
+                return _do_download(version, download_base, to_dir,
+                                    download_delay)
+        except pkg_resources.DistributionNotFound:
+            return _do_download(version, download_base, to_dir,
+                                download_delay)
+    finally:
+        if not no_fake:
+            _create_fake_setuptools_pkg_info(to_dir)
+
+
+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.
+    """
+    # making sure we use the absolute path
+    to_dir = os.path.abspath(to_dir)
+    try:
+        from urllib.request import urlopen
+    except ImportError:
+        from urllib2 import urlopen
+    tgz_name = "distribute-%s.tar.gz" % version
+    url = download_base + tgz_name
+    saveto = os.path.join(to_dir, tgz_name)
+    src = dst = None
+    if not os.path.exists(saveto):  # Avoid repeated downloads
+        try:
+            log.warn("Downloading %s", url)
+            src = urlopen(url)
+            # Read/write all in one block, so we don't create a corrupt file
+            # if the download is interrupted.
+            data = src.read()
+            dst = open(saveto, "wb")
+            dst.write(data)
+        finally:
+            if src:
+                src.close()
+            if dst:
+                dst.close()
+    return os.path.realpath(saveto)
+
+
+def _no_sandbox(function):
+    def __no_sandbox(*args, **kw):
+        try:
+            from setuptools.sandbox import DirectorySandbox
+            if not hasattr(DirectorySandbox, '_old'):
+                def violation(*args):
+                    pass
+                DirectorySandbox._old = DirectorySandbox._violation
+                DirectorySandbox._violation = violation
+                patched = True
+            else:
+                patched = False
+        except ImportError:
+            patched = False
+
+        try:
+            return function(*args, **kw)
+        finally:
+            if patched:
+                DirectorySandbox._violation = DirectorySandbox._old
+                del DirectorySandbox._old
+
+    return __no_sandbox
+
+
+def _patch_file(path, content):
+    """Will backup the file then patch it"""
+    f = open(path)
+    existing_content = f.read()
+    f.close()
+    if existing_content == content:
+        # already patched
+        log.warn('Already patched.')
+        return False
+    log.warn('Patching...')
+    _rename_path(path)
+    f = open(path, 'w')
+    try:
+        f.write(content)
+    finally:
+        f.close()
+    return True
+
+_patch_file = _no_sandbox(_patch_file)
+
+
+def _same_content(path, content):
+    f = open(path)
+    existing_content = f.read()
+    f.close()
+    return existing_content == content
+
+
+def _rename_path(path):
+    new_name = path + '.OLD.%s' % time.time()
+    log.warn('Renaming %s to %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')
+        return
+
+    log.warn('Moving 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
+
+_remove_flat_installation = _no_sandbox(_remove_flat_installation)
+
+
+def _after_install(dist):
+    log.warn('After install bootstrap.')
+    placeholder = dist.get_command_obj('install').install_purelib
+    _create_fake_setuptools_pkg_info(placeholder)
+
+
+def _create_fake_setuptools_pkg_info(placeholder):
+    if not placeholder or 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-%s-py%s.egg-info' % \
+            (SETUPTOOLS_FAKED_VERSION, 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)
+    try:
+        f = open(pkg_info, 'w')
+    except EnvironmentError:
+        log.warn("Don't have permissions to write %s, skipping", pkg_info)
+        return
+    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()
+
+_create_fake_setuptools_pkg_info = _no_sandbox(
+    _create_fake_setuptools_pkg_info
+)
+
+
+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
+
+_patch_egg_dir = _no_sandbox(_patch_egg_dir)
+
+
+def _before_install():
+    log.warn('Before install bootstrap.')
+    _fake_setuptools()
+
+
+def _under_prefix(location):
+    if 'install' not in sys.argv:
+        return True
+    args = sys.argv[sys.argv.index('install') + 1:]
+    for index, arg in enumerate(args):
+        for option in ('--root', '--prefix'):
+            if arg.startswith('%s=' % option):
+                top_dir = arg.split('root=')[-1]
+                return location.startswith(top_dir)
+            elif arg == option:
+                if len(args) > index:
+                    top_dir = args[index + 1]
+                    return location.startswith(top_dir)
+        if arg == '--user' and USER_SITE is not None:
+            return location.startswith(USER_SITE)
+    return True
+
+
+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
+    try:
+        setuptools_dist = ws.find(
+            pkg_resources.Requirement.parse('setuptools', replacement=False)
+            )
+    except TypeError:
+        # old distribute API
+        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)
+
+    # if --root or --preix was provided, and if
+    # setuptools is not located in them, we don't patch it
+    if not _under_prefix(setuptools_location):
+        log.warn('Not patching, --root or --prefix is installing Distribute'
+                 ' in another location')
+        return
+
+    # 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('Patching complete.')
+    _relaunch()
+
+
+def _relaunch():
+    log.warn('Relaunching...')
+    # we have to relaunch the process
+    # pip marker to avoid a relaunch bug
+    _cmd1 = ['-c', 'install', '--single-version-externally-managed']
+    _cmd2 = ['-c', 'install', '--record']
+    if sys.argv[:3] == _cmd1 or sys.argv[:3] == _cmd2:
+        sys.argv[0] = 'setup.py'
+    args = [sys.executable] + sys.argv
+    sys.exit(subprocess.call(args))
+
+
+def _extractall(self, path=".", members=None):
+    """Extract all members from the archive to the current working
+       directory and set owner, modification time and permissions on
+       directories afterwards. `path' specifies a different directory
+       to extract to. `members' is optional and must be a subset of the
+       list returned by getmembers().
+    """
+    import copy
+    import operator
+    from tarfile import ExtractError
+    directories = []
+
+    if members is None:
+        members = self
+
+    for tarinfo in members:
+        if tarinfo.isdir():
+            # Extract directories with a safe mode.
+            directories.append(tarinfo)
+            tarinfo = copy.copy(tarinfo)
+            tarinfo.mode = 448  # decimal for oct 0700
+        self.extract(tarinfo, path)
+
+    # Reverse sort directories.
+    if sys.version_info < (2, 4):
+        def sorter(dir1, dir2):
+            return cmp(dir1.name, dir2.name)
+        directories.sort(sorter)
+        directories.reverse()
+    else:
+        directories.sort(key=operator.attrgetter('name'), reverse=True)
+
+    # Set correct owner, mtime and filemode on directories.
+    for tarinfo in directories:
+        dirpath = os.path.join(path, tarinfo.name)
+        try:
+            self.chown(tarinfo, dirpath)
+            self.utime(tarinfo, dirpath)
+            self.chmod(tarinfo, dirpath)
+        except ExtractError:
+            e = sys.exc_info()[1]
+            if self.errorlevel > 1:
+                raise
+            else:
+                self._dbg(1, "tarfile: %s" % e)
+
+
+def _build_install_args(options):
+    """
+    Build the arguments to 'python setup.py install' on the distribute package
+    """
+    install_args = []
+    if options.user_install:
+        if sys.version_info < (2, 6):
+            log.warn("--user requires Python 2.6 or later")
+            raise SystemExit(1)
+        install_args.append('--user')
+    return install_args
+
+def _parse_args():
+    """
+    Parse the command line for options
+    """
+    parser = optparse.OptionParser()
+    parser.add_option(
+        '--user', dest='user_install', action='store_true', default=False,
+        help='install in user site package (requires Python 2.6 or later)')
+    parser.add_option(
+        '--download-base', dest='download_base', metavar="URL",
+        default=DEFAULT_URL,
+        help='alternative URL from where to download the distribute package')
+    options, args = parser.parse_args()
+    # positional arguments are ignored
+    return options
+
+def main(version=DEFAULT_VERSION):
+    """Install or upgrade setuptools and EasyInstall"""
+    options = _parse_args()
+    tarball = download_setuptools(download_base=options.download_base)
+    return _install(tarball, _build_install_args(options))
+
+if __name__ == '__main__':
+    sys.exit(main())

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia_server/libervia.sh	Tue Feb 18 00:15:43 2014 +0100
@@ -0,0 +1,60 @@
+#!/bin/sh
+
+#if there is one argument which is "stop", then we kill libervia
+DEBUG=""
+if [ $# -eq 1 ];then
+    if [ $1 = "stop" ];then
+        echo "Terminating Libervia"
+        pkill -f "twistd.*libervia"
+        exit 0
+    fi
+    if [ $1 = "debug" ];then
+        echo "Launching Libervia in debug mode"
+        DEBUG="--debug"
+    fi
+fi
+
+NAME='libervia'
+PYTHON='python'
+
+#We use python to parse config files
+eval `"$PYTHON" << PYTHONEND
+from ConfigParser import SafeConfigParser
+from os.path import expanduser, join
+import sys
+
+config = SafeConfigParser(defaults={'local_dir':'~/.libervia',
+                                    'pid_dir':'/tmp',
+                                    'log_dir':'%(local_dir)s'})
+try:
+    config.read(map(expanduser, ['/etc/libervia.conf', '~/libervia.conf', '~/.libervia.conf', 'libervia.conf', '.libervia.conf']))
+except:
+    print ("echo \"/!\\ Can't read main config ! Please check the syntax\";")
+    print ("exit 1")
+    sys.exit()
+
+env=[]
+env.append("LOCAL_DIR='%s'" % join(expanduser(config.get('DEFAULT', 'local_dir')),''))
+env.append("PID_DIR='%s'" % join(expanduser(config.get('DEFAULT', 'pid_dir')),''))
+env.append("LOG_DIR='%s'" % join(expanduser(config.get('DEFAULT', 'pid_dir')),''))
+
+print ";".join(env)
+PYTHONEND
+`
+
+PID_FILE="$PID_DIR$NAME.pid"
+LOG_FILE="$LOCAL_DIR$NAME.log"
+DAEMON="n"
+MAIN_OPTIONS="-${DAEMON}o"
+
+#Don't change the next line
+AUTO_OPTIONS=""
+ADDITIONAL_OPTIONS="--pidfile $PID_FILE --logfile $LOG_FILE $AUTO_OPTIONS $DEBUG"
+
+log_dir=`dirname "$LOG_FILE"`
+if [ ! -d $log_dir ] ; then
+    mkdir $log_dir
+fi
+
+echo "Starting Libervia..."
+twistd $MAIN_OPTIONS $ADDITIONAL_OPTIONS $NAME

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/setup.py	Tue Feb 18 00:15:43 2014 +0100
@@ -0,0 +1,195 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Libervia: a Salut à Toi frontend
+# Copyright (C) 2011, 2012, 2013, 2014 Jérôme Poisson <goffi@goffi.org>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from distribute_setup import use_setuptools
+use_setuptools()
+from setuptools.command.install import install
+from setuptools import setup
+from distutils.file_util import copy_file
+import os
+import sys
+import subprocess
+from stat import ST_MODE
+
+# seen here: http://stackoverflow.com/questions/7275295
+try:
+    from setuptools.command import egg_info
+    egg_info.write_toplevel_names
+except (ImportError, AttributeError):
+    pass
+else:
+    def _top_level_package(name):
+        return name.split('.', 1)[0]
+
+    def _hacked_write_toplevel_names(cmd, basename, filename):
+        pkgs = dict.fromkeys(
+            [_top_level_package(k)
+                for k in cmd.distribution.iter_distribution_names()
+                if _top_level_package(k) != "twisted"
+            ]
+        )
+        cmd.write_file("top-level names", filename, '\n'.join(pkgs) + '\n')
+
+    egg_info.write_toplevel_names = _hacked_write_toplevel_names
+
+
+NAME = 'libervia'
+LAUNCH_DAEMON_COMMAND = 'libervia'
+
+
+class MercurialException(Exception):
+    pass
+
+
+def module_installed(module_name):
+    """Try to import module_name, and return False if it failed
+    @param module_name: name of the module to test
+    @return: True if successful"""
+    try:
+        __import__(module_name)
+    except ImportError:
+        return False
+    return True
+
+
+class CustomInstall(install):
+
+    def custom_auto_options(self):
+        """Change options for twistd in the shell script
+        Mainly change the paths"""
+        sh_buffer = ""
+        run_dir = os.path.dirname(self.sh_script_path)
+        with open(self.sh_script_path, 'r') as sh_file:
+            for ori_line in sh_file:
+                if ori_line.startswith('DAEMON='):
+                    dest_line = 'DAEMON=""\n'  # we want to launch sat as a daemon
+                elif ori_line.startswith('TAP_PATH='):
+                    dest_line = 'TAP_PATH="%s/"\n' % run_dir
+                elif ori_line.startswith('PYTHON='):
+                    dest_line = 'PYTHON="%s"\n' % sys.executable
+                else:
+                    dest_line = ori_line
+                sh_buffer += dest_line
+
+        with open(self.sh_script_path, 'w') as sh_file:
+            sh_file.write(sh_buffer)
+
+    def custom_create_links(self):
+        """Create symbolic links to executables"""
+        # the script which launch the daemon
+        links = [(self.sh_script_path, LAUNCH_DAEMON_COMMAND)]
+        for source, dest in links:
+            dest_name, copied = copy_file(source, os.path.join(self.install_scripts, dest), link='sym')
+            assert (copied)
+            # we change the perm in the same way as in the original install_scripts
+            mode = ((os.stat(dest_name)[ST_MODE]) | 0555) & 07777
+            os.chmod(dest_name, mode)
+
+    def pyjs_build(self):
+        return subprocess.call('pyjsbuild libervia --no-compile-inplace -m -I %s' % self.install_lib, shell=True)
+
+    def run(self):
+        sys.stdout.write('running pre installation stuff\n')
+        sys.stdout.flush()
+        build_result = self.pyjs_build()
+        if build_result == 127:  # TODO: remove magic string
+            print "pyjsbuild is not installed or not accessible from the PATH of user '%s'" % os.getenv('USERNAME')
+            return
+        if build_result != 0:
+            print "pyjsbuild failed to build libervia"
+            return
+        install.run(self)
+        sys.stdout.write('running post installation stuff\n')
+        sys.stdout.flush()
+        self.sh_script_path = os.path.join(self.install_lib, 'libervia_server', 'libervia.sh')
+        self.custom_auto_options()
+        self.custom_create_links()
+
+
+def preinstall_check():
+    """Check presence of problematic dependencies, and try to install them with package manager
+    This ugly stuff is necessary as distributions are not installed correctly with setuptools/distribute
+    Hope to remove this at some point"""
+
+    modules_tocheck = []  # if empty this method is dummy
+
+    package = {'twisted': 'python-twisted-core',
+               'twisted.words': 'python-twisted-words',
+               'twisted.web': 'python-twisted-web',
+               'mercurial': 'mercurial'}  # this dict map dependencies to packages names for debian distributions
+
+    sys.stdout.write("Running pre-installation dependencies check\n")
+
+    # which modules are not installed ?
+    modules_toinstall = [mod for mod in modules_tocheck if not module_installed(mod)]
+
+    if modules_toinstall:
+        # are we on a distribution using apt ?
+        apt_path = subprocess.Popen('which apt-get', stdout=subprocess.PIPE, shell=True).communicate()[0][:-1]
+        not_installed = set()
+        if apt_path:
+            # we have apt, we'll try to use it
+            for module_name in modules_toinstall:
+                package_name = package[module_name]
+                sys.stdout.write("Installing %s\n" % package_name)
+                success = subprocess.call('%s -qy install %s' % (apt_path, package_name), shell=True) == 0
+                if not success:
+                    not_installed.add(module_name)
+        else:
+            not_installed = set(modules_toinstall)
+
+        if not_installed:
+            # some packages can't be automatically installed, we print their name for manual installation
+            sys.stdout.write("You should install the following dependencies with your distribution recommanded tool before installing %s:\n" % NAME)
+            for module_name in not_installed:
+                sys.stdout.write("- %s (Debian name: %s)\n" % (module_name, package[module_name]))
+            sys.exit(2)
+
+
+if sys.argv[1].lower() in ['egg_info', 'install']:
+    # we only check dependencies if egg_info or install is used
+    install_opt = os.environ.get("LIBERVIA_INSTALL", "")
+    if not "nopreinstall" in install_opt:  # user can force preinstall skipping
+        preinstall_check()
+
+setup(name=NAME,
+      version='0.3.0',
+      description=u'Web frontend for Salut à Toi',
+      long_description=u'Libervia is a web frontend for Salut à Toi (SàT), a multi-frontends and multi-purposes XMPP client.',
+      author='Goffi (Jérôme Poisson)',
+      author_email='goffi@goffi.org',
+      url='http://sat.goffi.org',
+      classifiers=['Development Status :: 3 - Alpha',
+                   'Environment :: Web Environment',
+                   'Framework :: Twisted',
+                   'Framework :: Pyjamas',
+                   'License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)',
+                   'Operating System :: POSIX :: Linux',
+                   'Topic :: Communications :: Chat'],
+      package_dir={'libervia': '.', 'libervia_server': 'libervia_server'},
+      packages=['libervia', 'libervia.output', 'libervia_server', 'twisted.plugins'],
+      package_data={'libervia': ['libervia.py'], 'libervia.output': ['**/*.*'], 'libervia_server': ['libervia.sh']},
+      data_files=[('share/doc/%s' % NAME, ['COPYING', 'README'])],
+      scripts=[],
+      zip_safe=False,
+      dependency_links=['http://www.blarg.net/%7Esteveha/pyfeed-0.7.4.tar.gz', 'http://www.blarg.net/%7Esteveha/xe-0.7.4.tar.gz'],
+      install_requires=['sat', 'twisted', 'pyfeed', 'xe', 'txjsonrpc', 'zope'],
+      cmdclass={'install': CustomInstall},
+      )
+

--- a/twisted/plugins/libervia.py	Tue Feb 18 14:38:04 2014 +0100
+++ b/twisted/plugins/libervia.py	Tue Feb 18 00:15:43 2014 +0100
@@ -28,7 +28,10 @@
 from ConfigParser import SafeConfigParser, NoSectionError
 from os.path import expanduser
 
-from libervia_server import Libervia
+try:
+    from libervia_server import Libervia
+except (ImportError, SystemExit):
+    pass  # avoid raising an error when you call twisted and sat is not launched
 
 
 class Options(usage.Options):