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Make program installable with setuptools.

pull/2/head
Tony DiCola 9 years ago
parent
commit
a1da408897
10 changed files with 354 additions and 3 deletions
  1. +2
    -0
      Adafruit_Video_Looper/__init__.py
  2. +0
    -0
      Adafruit_Video_Looper/directory.py
  3. +0
    -0
      Adafruit_Video_Looper/hello_video.py
  4. +0
    -0
      Adafruit_Video_Looper/model.py
  5. +0
    -0
      Adafruit_Video_Looper/omxplayer.py
  6. +0
    -0
      Adafruit_Video_Looper/usb_drive.py
  7. +0
    -0
      Adafruit_Video_Looper/usb_drive_mounter.py
  8. +6
    -3
      Adafruit_Video_Looper/video_looper.py
  9. +332
    -0
      ez_setup.py
  10. +14
    -0
      setup.py

+ 2
- 0
Adafruit_Video_Looper/__init__.py View File

@@ -0,0 +1,2 @@
# Import main program.
from .video_looper import main

directory.py → Adafruit_Video_Looper/directory.py View File


hello_video.py → Adafruit_Video_Looper/hello_video.py View File


model.py → Adafruit_Video_Looper/model.py View File


omxplayer.py → Adafruit_Video_Looper/omxplayer.py View File


usb_drive.py → Adafruit_Video_Looper/usb_drive.py View File


usb_drive_mounter.py → Adafruit_Video_Looper/usb_drive_mounter.py View File


video_looper.py → Adafruit_Video_Looper/video_looper.py View File

@@ -3,6 +3,7 @@
# License: GNU GPLv2, see LICENSE.txt
import atexit
import ConfigParser
import importlib
import os
import re
import sys
@@ -81,12 +82,14 @@ class VideoLooper(object):
def _load_player(self):
"""Load the configured video player and return an instance of it."""
module = self._config.get('video_looper', 'video_player')
return __import__(module).create_player(self._config)
return importlib.import_module('.' + module, 'Adafruit_Video_Looper') \
.create_player(self._config)

def _load_file_reader(self):
"""Load the configured file reader and return an instance of it."""
module = self._config.get('video_looper', 'file_reader')
return __import__(module).create_file_reader(self._config)
return importlib.import_module('.' + module, 'Adafruit_Video_Looper') \
.create_file_reader(self._config)

def _build_playlist(self):
"""Search all the file reader paths for movie files with the provided
@@ -204,7 +207,7 @@ class VideoLooper(object):


# Main entry point.
if __name__ == '__main__':
def main():
# Default config path to /boot.
config_path = '/boot/video_looper.ini'
# Override config path if provided as parameter.

+ 332
- 0
ez_setup.py View File

@@ -0,0 +1,332 @@
#!/usr/bin/env python
"""Bootstrap setuptools installation

To use setuptools in your package's setup.py, include this
file in the same directory and add this to the top of your setup.py::

from ez_setup import use_setuptools
use_setuptools()

To require a specific version of setuptools, set a download
mirror, or use an alternate download directory, simply supply
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 tempfile
import zipfile
import optparse
import subprocess
import platform
import textwrap
import contextlib

from distutils import log

try:
from site import USER_SITE
except ImportError:
USER_SITE = None

DEFAULT_VERSION = "3.5.1"
DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/"

def _python_cmd(*args):
"""
Return True if the command succeeded.
"""
args = (sys.executable,) + args
return subprocess.call(args) == 0


def _install(archive_filename, install_args=()):
with archive_context(archive_filename):
# installing
log.warn('Installing Setuptools')
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


def _build_egg(egg, archive_filename, to_dir):
with archive_context(archive_filename):
# building an egg
log.warn('Building a Setuptools egg in %s', to_dir)
_python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
# returning the result
log.warn(egg)
if not os.path.exists(egg):
raise IOError('Could not build the egg.')


def get_zip_class():
"""
Supplement ZipFile class to support context manager for Python 2.6
"""
class ContextualZipFile(zipfile.ZipFile):
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close
return zipfile.ZipFile if hasattr(zipfile.ZipFile, '__exit__') else \
ContextualZipFile


@contextlib.contextmanager
def archive_context(filename):
# extracting the archive
tmpdir = tempfile.mkdtemp()
log.warn('Extracting in %s', tmpdir)
old_wd = os.getcwd()
try:
os.chdir(tmpdir)
with get_zip_class()(filename) as archive:
archive.extractall()

# going in the directory
subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
os.chdir(subdir)
log.warn('Now working in %s', subdir)
yield

finally:
os.chdir(old_wd)
shutil.rmtree(tmpdir)


def _do_download(version, download_base, to_dir, download_delay):
egg = os.path.join(to_dir, 'setuptools-%s-py%d.%d.egg'
% (version, sys.version_info[0], sys.version_info[1]))
if not os.path.exists(egg):
archive = download_setuptools(version, download_base,
to_dir, download_delay)
_build_egg(egg, archive, to_dir)
sys.path.insert(0, egg)

# Remove previously-imported pkg_resources if present (see
# https://bitbucket.org/pypa/setuptools/pull-request/7/ for details).
if 'pkg_resources' in sys.modules:
del sys.modules['pkg_resources']

import setuptools
setuptools.bootstrap_install_from = egg


def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
to_dir=os.curdir, download_delay=15):
to_dir = os.path.abspath(to_dir)
rep_modules = 'pkg_resources', 'setuptools'
imported = set(sys.modules).intersection(rep_modules)
try:
import pkg_resources
except ImportError:
return _do_download(version, download_base, to_dir, download_delay)
try:
pkg_resources.require("setuptools>=" + version)
return
except pkg_resources.DistributionNotFound:
return _do_download(version, download_base, to_dir, download_delay)
except pkg_resources.VersionConflict as VC_err:
if imported:
msg = textwrap.dedent("""
The required version of setuptools (>={version}) is not available,
and can't be installed while this script is running. Please
install a more recent version first, using
'easy_install -U setuptools'.

(Currently using {VC_err.args[0]!r})
""").format(VC_err=VC_err, version=version)
sys.stderr.write(msg)
sys.exit(2)

# otherwise, reload ok
del pkg_resources, sys.modules['pkg_resources']
return _do_download(version, download_base, to_dir, download_delay)

def _clean_check(cmd, target):
"""
Run the command to download target. If the command fails, clean up before
re-raising the error.
"""
try:
subprocess.check_call(cmd)
except subprocess.CalledProcessError:
if os.access(target, os.F_OK):
os.unlink(target)
raise

def download_file_powershell(url, target):
"""
Download the file at url to target using Powershell (which will validate
trust). Raise an exception if the command cannot complete.
"""
target = os.path.abspath(target)
cmd = [
'powershell',
'-Command',
"(new-object System.Net.WebClient).DownloadFile(%(url)r, %(target)r)" % vars(),
]
_clean_check(cmd, target)

def has_powershell():
if platform.system() != 'Windows':
return False
cmd = ['powershell', '-Command', 'echo test']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True

download_file_powershell.viable = has_powershell

def download_file_curl(url, target):
cmd = ['curl', url, '--silent', '--output', target]
_clean_check(cmd, target)

def has_curl():
cmd = ['curl', '--version']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True

download_file_curl.viable = has_curl

def download_file_wget(url, target):
cmd = ['wget', url, '--quiet', '--output-document', target]
_clean_check(cmd, target)

def has_wget():
cmd = ['wget', '--version']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True

download_file_wget.viable = has_wget

def download_file_insecure(url, target):
"""
Use Python to download the file, even though it cannot authenticate the
connection.
"""
try:
from urllib.request import urlopen
except ImportError:
from urllib2 import urlopen
src = dst = None
try:
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(target, "wb")
dst.write(data)
finally:
if src:
src.close()
if dst:
dst.close()

download_file_insecure.viable = lambda: True

def get_best_downloader():
downloaders = [
download_file_powershell,
download_file_curl,
download_file_wget,
download_file_insecure,
]

for dl in downloaders:
if dl.viable():
return dl

def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
to_dir=os.curdir, delay=15, downloader_factory=get_best_downloader):
"""
Download setuptools from a specified location and return its filename

`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 the egg will be downloaded.
`delay` is the number of seconds to pause before an actual download
attempt.

``downloader_factory`` should be a function taking no arguments and
returning a function for downloading a URL to a target.
"""
# making sure we use the absolute path
to_dir = os.path.abspath(to_dir)
zip_name = "setuptools-%s.zip" % version
url = download_base + zip_name
saveto = os.path.join(to_dir, zip_name)
if not os.path.exists(saveto): # Avoid repeated downloads
log.warn("Downloading %s", url)
downloader = downloader_factory()
downloader(url, saveto)
return os.path.realpath(saveto)

def _build_install_args(options):
"""
Build the arguments to 'python setup.py install' on the setuptools package
"""
return ['--user'] if options.user_install else []

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 setuptools package')
parser.add_option(
'--insecure', dest='downloader_factory', action='store_const',
const=lambda: download_file_insecure, default=get_best_downloader,
help='Use internal, non-validating downloader'
)
parser.add_option(
'--version', help="Specify which version to download",
default=DEFAULT_VERSION,
)
options, args = parser.parse_args()
# positional arguments are ignored
return options

def main():
"""Install or upgrade setuptools and EasyInstall"""
options = _parse_args()
archive = download_setuptools(
version=options.version,
download_base=options.download_base,
downloader_factory=options.downloader_factory,
)
return _install(archive, _build_install_args(options))

if __name__ == '__main__':
sys.exit(main())

+ 14
- 0
setup.py View File

@@ -0,0 +1,14 @@
from ez_setup import use_setuptools
use_setuptools()
from setuptools import setup, find_packages

setup(name = 'Adafruit_Video_Looper',
version = '1.0.0',
author = 'Tony DiCola',
author_email = 'tdicola@adafruit.com',
description = 'Application to turn your Raspberry Pi into a dedicated looping video playback device, good for art installations, information displays, or just playing cat videos all day.',
license = 'GNU GPLv2',
url = 'https://github.com/adafruit/pi_video_looper',
install_requires = ['pyudev'],
packages = find_packages(),
entry_points = {'console_scripts': ['video_looper = Adafruit_Video_Looper:main']})

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