orange / Orange / utils / addons.py

Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 









Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 


Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 



Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 



Marko Toplak 94a831b 


Aleš Erjavec 67f486d 
Aleš Erjavec 705107a 



Aleš Erjavec 67f486d 
Matija Polajnar b7cbf2b 
Matija Polajnar e0b3d7e 
Marko Toplak 94a831b 


Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 

Matija Polajnar b7cbf2b 




Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 


Aleš Erjavec 705107a 
Matija Polajnar e0b3d7e 









Matija Polajnar b7cbf2b 
Matija Polajnar e0b3d7e 


Matija Polajnar e7cba04 
Aleš Erjavec 2f4fbcb 

Matija Polajnar b7cbf2b 







Matija Polajnar e0b3d7e 









Matija Polajnar b7cbf2b 





Matija Polajnar e0b3d7e 

Matija Polajnar b7cbf2b 



Matija Polajnar ecf11f8 
Matija Polajnar b7cbf2b 
Matija Polajnar ecf11f8 

Matija Polajnar b7cbf2b 







Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 

Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 
Matija Polajnar e0b3d7e 
Matija Polajnar b7cbf2b 
Matija Polajnar ecf11f8 

Matija Polajnar e0b3d7e 





Marko Toplak 94a831b 
Matija Polajnar e0b3d7e 
























Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 
Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 

Matija Polajnar e0b3d7e 






















Matija Polajnar b7cbf2b 

Aleš Erjavec 67f486d 
Matija Polajnar b7cbf2b 
Aleš Erjavec 67f486d 




















Matija Polajnar b7cbf2b 

Matija Polajnar 258cd74 


Aleš Erjavec 705107a 



Matija Polajnar b7cbf2b 

Aleš Erjavec 705107a 

















Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 
Aleš Erjavec 705107a 

Marko Toplak 94a831b 
Aleš Erjavec 67f486d 



Matija Polajnar b7cbf2b 

Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 







Marko Toplak 94a831b 

Matija Polajnar b7cbf2b 
Matija Polajnar b692493 






Matija Polajnar b7cbf2b 
Matija Polajnar 258cd74 

Matija Polajnar b7cbf2b 





Marko Toplak 94a831b 

Matija Polajnar b7cbf2b 

Marko Toplak 94a831b 


Matija Polajnar b7cbf2b 

Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 









Marko Toplak 94a831b 
Matija Polajnar b7cbf2b 
from __future__ import absolute_import
"""
==============================
Add-on Management (``addons``)
==============================

.. index:: add-ons

Orange.utils.addons module provides a framework for Orange add-on management. As
soon as it is imported, the following initialization takes place: the list of
installed add-ons is loaded, their directories are added to python path
(:obj:`sys.path`) the callback list is initialized, the stored repository list is
loaded. The most important consequence of importing the module is thus the
injection of add-ons into the namespace.

"""

#TODO Document this module.

import socket
import shelve
import xmlrpclib
import warnings
import re
import pkg_resources
import tempfile
import tarfile
import shutil
import os
import sys
import platform
import subprocess
import urllib2
import urlparse
import posixpath
import site

from collections import namedtuple, defaultdict
from contextlib import closing

import Orange.utils.environ

ADDONS_ENTRY_POINT="orange.addons"


OrangeAddOn = namedtuple('OrangeAddOn', ['name', 'available_version', 'installed_version', 'summary', 'description',
                                         'author', 'docs_url', 'keywords', 'homepage', 'package_url',
                                         'release_url', 'release_size', 'python_version'])
#It'd be great if we could somehow read a list and descriptions of widgets, show them in the dialog and enable
#search of add-ons based on keywords in widget names and descriptions.

INDEX_RE = "[^a-z0-9-']"  # RE for splitting entries in the search index

AOLIST_FILE = os.path.join(Orange.utils.environ.orange_settings_dir, "addons.shelve")

def open_addons():
    try:
        addons = shelve.open(AOLIST_FILE, 'c')
        if any(name != name.lower() for name, record in addons.items()):  # Try to read the whole list and check for sanity.
            raise Exception("Corrupted add-on list.")
    except:
        if os.path.isfile(AOLIST_FILE):
            os.remove(AOLIST_FILE)
        addons = shelve.open(AOLIST_FILE, 'n')
    return addons

global addons_corrupted
with closing(open_addons()) as addons:
    addons_corrupted = len(addons)==0

del addons

addon_refresh_callback = []

global index
index = defaultdict(list)
def rebuild_index():
    global index

    index = defaultdict(list)
    with closing(open_addons()) as addons:
        for name, ao in addons.items():
            for s in [name, ao.summary, ao.description, ao.author] + (ao.keywords if ao.keywords else []):
                if not s:
                    continue
                words = [word for word in re.split(INDEX_RE, s.lower())
                         if len(word)>1]
                for word in words:
                    for i in range(len(word)):
                        index[word[:i+1]].append(name)

def search_index(query):
    global index
    result = set()
    words = [word for word in re.split(INDEX_RE, query.lower()) if len(word)>1]
    if not words:
        with closing(open_addons()) as addons:
            return addons.keys()
    for word in words:
        result.update(index[word])
    return result

def refresh_available_addons(force=False, progress_callback=None):
    pypi = xmlrpclib.ServerProxy('http://pypi.python.org/pypi')
    if progress_callback:
        progress_callback(1, 0)

    pkg_dict = {}
    for data in pypi.search({'keywords': 'orange'}):
        name = data['name']
        order = data['_pypi_ordering']
        if name not in pkg_dict or pkg_dict[name][0] < order:
            pkg_dict[name] = (order, data['version'])

    try:
        import slumber
        readthedocs = slumber.API(base_url='http://readthedocs.org/api/v1/')
    except:
        readthedocs = None

    global addons_corrupted
    docs = {}
    if progress_callback:
        progress_callback(len(pkg_dict)+1, 1)
    with closing(open_addons()) as addons:
        for i, (name, (_, version)) in enumerate(pkg_dict.items()):
            if force or name not in addons or addons[name.lower()].available_version != version:
                try:
                    data = pypi.release_data(name, version)
                    rel = pypi.release_urls(name, version)[0]

                    if readthedocs:
                        try:
                            docs = readthedocs.project.get(slug=name.lower())['objects'][0]
                        except:
                            docs = {}
                    addons[name.lower()] = OrangeAddOn(name = name,
                                               available_version = data['version'],
                                               installed_version = addons[name.lower()].installed_version if name.lower() in addons else None,
                                               summary = data['summary'],
                                               description = data.get('description', ''),
                                               author = str((data.get('author', '') or '') + ' ' + (data.get('author_email', '') or '')).strip(),
                                               docs_url = data.get('docs_url', docs.get('subdomain', '')),
                                               keywords = data.get('keywords', "").split(","),
                                               homepage = data.get('home_page', ''),
                                               package_url = data.get('package_url', ''),
                                               release_url = rel.get('url', None),
                                               release_size = rel.get('size', -1),
                                               python_version = rel.get('python_version', None))
                except Exception, e:
                    import traceback
                    traceback.print_exc()
                    warnings.warn('Could not load data for the following add-on: %s'%name)
            if progress_callback:
                progress_callback(len(pkg_dict)+1, i+2)
        addons_corrupted = False

    rebuild_index()

def load_installed_addons():
    found = set()
    with closing(open_addons()) as addons:
        for entry_point in pkg_resources.iter_entry_points(ADDONS_ENTRY_POINT):
            name, version = entry_point.dist.project_name, entry_point.dist.version
            #TODO We could import setup.py from entry_point.location and load descriptions and such ...
            if name.lower() in addons:
                addons[name.lower()] = addons[name.lower()]._replace(installed_version = version)
            else:
                addons[name.lower()] = OrangeAddOn(name = name,
                    available_version = None,
                    installed_version = version,
                    summary = "",
                    description = "",
                    author = "",
                    docs_url = "",
                    keywords = "",
                    homepage = "",
                    package_url = "",
                    release_url = "",
                    release_size = None,
                    python_version = None)
            found.add(name.lower())
        for name in set(addons).difference(found):
            addons[name.lower()] = addons[name.lower()]._replace(installed_version = None)
    rebuild_index()


def run_setup(setup_script, args):
    """
    Run `setup_script` with `args` in a subprocess, using
    :ref:`subprocess.check_output`.

    """
    source_root = os.path.dirname(setup_script)
    executable = sys.executable
    extra_kwargs = {}
    if os.name == "nt" and os.path.basename(executable) == "pythonw.exe":
        dirname, _ = os.path.split(executable)
        executable = os.path.join(dirname, "python.exe")
        # by default a new console window would show up when executing the
        # script
        startupinfo = subprocess.STARTUPINFO()
        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        extra_kwargs["startupinfo"] = startupinfo

    subprocess.check_output([executable, setup_script] + args,
                             cwd=source_root,
                             stderr=subprocess.STDOUT,
                             **extra_kwargs)


def install(name, progress_callback=None):
    if progress_callback:
        progress_callback(1, 0)

    with closing(open_addons()) as addons:
        addon = addons[name.lower()]
    release_url = addon.release_url

    try:
        tmpdir = tempfile.mkdtemp()

        stream = urllib2.urlopen(release_url, timeout=120)

        parsed_url = urlparse.urlparse(release_url)
        package_name = posixpath.basename(parsed_url.path)
        package_path = os.path.join(tmpdir, package_name)

        progress_cb = (lambda value: progress_callback(value, 0)) \
                      if progress_callback else None
        with open(package_path, "wb") as package_file:
            Orange.utils.copyfileobj(
                stream, package_file, progress=progress_cb)

        egg_contents = tarfile.open(package_path)
        egg_contents.extractall(tmpdir)
        setup_py = os.path.join(tmpdir, name + '-' + addon.available_version,
                                'setup.py')

        if not os.path.isfile(setup_py):
            raise Exception("Unable to install add-on - it is not properly "
                            "packed.")

        switches = []
        if site.USER_SITE in sys.path:   # we're not in a virtualenv
            switches.append('--user')
        run_setup(setup_py, ['install'] + switches)
    finally:
        shutil.rmtree(tmpdir, ignore_errors=True)

    for p in list(sys.path):
        site.addsitedir(p)
    reload(pkg_resources)
    for p in list(sys.path):
        pkg_resources.find_distributions(p)
    from orngRegistry import load_new_addons
    load_new_addons()
    load_installed_addons()
    for func in addon_refresh_callback:
        func()

def uninstall(name, progress_callback=None):
    try:
        import pip.req
        ao = pip.req.InstallRequirement(name, None)
        ao.uninstall(True)
    except ImportError:
        raise Exception("Pip is required for add-on uninstallation. Install pip and try again.")

def upgrade(name, progress_callback=None):
    install(name, progress_callback)

load_installed_addons()



# Support for loading legacy "registered" add-ons
def __read_addons_list(addons_file, systemwide):
    if os.path.isfile(addons_file):
        return [tuple([x.strip() for x in lne.split("\t")])
                for lne in file(addons_file, "rt")]
    else:
        return []

registered = __read_addons_list(os.path.join(Orange.utils.environ.orange_settings_dir, "add-ons.txt"), False) + \
             __read_addons_list(os.path.join(Orange.utils.environ.install_dir, "add-ons.txt"), True)

for name, path in registered:
    for p in [os.path.join(path, "widgets", "prototypes"),
          os.path.join(path, "widgets"),
          path,
          os.path.join(path, "lib-%s" % "-".join(( sys.platform, "x86" if (platform.machine()=="")
          else platform.machine(), ".".join(map(str, sys.version_info[:2])) )) )]:
        if os.path.isdir(p) and not any([Orange.utils.environ.samepath(p, x)
                                         for x in sys.path]):
            if p not in sys.path:
                sys.path.insert(0, p)

#TODO Show some progress to the user at least during the installation procedure.
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.