euscan-ng/bin/euscan

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#!/usr/bin/python
"""Copyright 2011 Gentoo Foundation
Distributed under the terms of the GNU General Public License v2
"""
from __future__ import print_function
""" Meta """
__author__ = "Corentin Chary (iksaif)"
__email__ = "corentin.chary@gmail.com"
__version__ = "git"
__productname__ = "euscan"
__description__ = "A tool to detect new upstream releases."
__version__ = "git"
""" Imports """
import os
import sys
import getopt
import errno
import httplib
from portage.output import white, yellow, turquoise, green, EOutput
import gentoolkit.pprinter as pp
from gentoolkit.eclean.search import (port_settings)
from euscan import CONFIG, output
from euscan.scan import scan_upstream
""" Globals """
def setupSignals():
""" This block ensures that ^C interrupts are handled quietly. """
import signal
def exithandler(signum,frame):
signal.signal(signal.SIGINT, signal.SIG_IGN)
signal.signal(signal.SIGTERM, signal.SIG_IGN)
print ()
sys.exit(errno.EINTR)
signal.signal(signal.SIGINT, exithandler)
signal.signal(signal.SIGTERM, exithandler)
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
def printVersion():
"""Output the version info."""
print( "%s (%s) - %s" \
% (__productname__, __version__, __description__))
print()
print("Author: %s <%s>" % (__author__,__email__))
print("Copyright 2011 Gentoo Foundation")
print("Distributed under the terms of the GNU General Public License v2")
def printUsage(_error=None, help=None):
"""Print help message. May also print partial help to stderr if an
error from {'options'} is specified."""
out = sys.stdout
if _error:
out = sys.stderr
if not _error in ('global-options', 'packages',):
_error = None
if not _error and not help: help = 'all'
if _error in ('global-options',):
print( pp.error("Wrong option on command line."), file=out)
print( file=out)
if _error in ('packages',):
print( pp.error("You need to specify exactly one package."), file=out)
print( file=out)
print( white("Usage:"), file=out)
if _error in ('global-options', 'packages',) or help == 'all':
print( " "+turquoise(__productname__),
yellow("[options]"),
green("<package>"), file=out)
if _error in ('global-options',) or help == 'all':
print( " "+turquoise(__productname__),
yellow("[--help, --version]"), file=out)
print(file=out)
if _error in ('global-options',) or help:
print( "Available ", yellow("options")+":", file=out)
print( yellow(" -C, --nocolor")+
" - turn off colors on output", file=out)
print( yellow(" -q, --quiet")+
" - be as quiet as possible", file=out)
print( yellow(" -h, --help")+ \
" - display the help screen", file=out)
print( yellow(" -V, --version")+
" - display version info", file=out)
print( file=out)
print( yellow(" -1, --oneshot")+
" - stop as soon as a new version is found", file=out)
print( yellow(" -b, --brute-force=<level>")+
" - define the brute force "+yellow("<level>")+" (default: 2)\n" +
" " * 29 + "bigger levels will generate more versions numbers\n" +
" " * 29 + "0 means disabled", file=out)
print( file=out)
if _error in ('packages',) or help:
print( green(" package")+
" - the package (or ebuild) you want to scan", file=out)
print( file=out)
'''print( "More detailed instruction can be found in",
turquoise("`man %s`" % __productname__), file=out)'''
class ParseArgsException(Exception):
"""For parseArgs() -> main() communications."""
def __init__(self, value):
self.value = value
def __str__(self):
return repr(self.value)
def parseArgs():
"""Parse the command line arguments. Raise exceptions on
errors. Returns package and affect the CONFIG dict.
"""
def optionSwitch(opts):
"""local function for interpreting command line options
and setting options accordingly"""
return_code = True
for o, a in opts:
if o in ("-h", "--help"):
raise ParseArgsException('help')
elif o in ("-V", "--version"):
raise ParseArgsException('version')
elif o in ("-C", "--nocolor"):
CONFIG['nocolor'] = True
pp.output.nocolor()
elif o in ("-q", "--quiet"):
CONFIG['quiet'] = True
CONFIG['verbose'] = 0
elif o in ("-1", "--oneshot"):
CONFIG['oneshot'] = True
elif o in ("-b", "--brute-force"):
CONFIG['brute-force'] = int(a)
elif o in ("-v", "--verbose") and not CONFIG['quiet']:
CONFIG['verbose'] += 1
else:
return_code = False
return return_code
' here are the different allowed command line options (getopt args) '
getopt_options = {'short':{}, 'long':{}}
getopt_options['short']['global'] = "hVCqv1b:"
getopt_options['long']['global'] = ["help", "version", "nocolor", "quiet",
"verbose", "oneshot", "brute-force="]
short_opts = getopt_options['short']['global']
long_opts = getopt_options['long']['global']
opts_mode = 'global'
' apply getopts to command line, show partial help on failure '
try:
opts, args = getopt.getopt(sys.argv[1:], short_opts, long_opts)
except:
raise ParseArgsException(opts_mode+'-options')
' set options accordingly '
optionSwitch(opts)
if len(args) != 1:
raise ParseArgsException('packages')
return args[0]
def main():
"""Parse command line and execute all actions."""
CONFIG['nocolor'] = (port_settings["NOCOLOR"] in ('yes','true')
or not sys.stdout.isatty())
if CONFIG['nocolor']:
pp.output.nocolor()
' parse command line options and actions '
try:
package = parseArgs()
except ParseArgsException as e:
if e.value == 'help':
printUsage(help='all')
sys.exit(0)
elif e.value[:5] == 'help-':
printUsage(help=e.value[5:])
sys.exit(0)
elif e.value == 'version':
printVersion()
sys.exit(0)
else:
printUsage(e.value)
sys.exit(errno.EINVAL)
""" Change euscan's output """
output = EOutput(CONFIG['quiet'])
ret = scan_upstream(package)
if CONFIG['verbose'] > 2:
httplib.HTTPConnection.debuglevel = 1
print ()
for url, version in ret:
print ("Upstream Version: "
+ pp.number("%s" % version)
+ pp.path(" %s" % url))
if not len(ret):
print (pp.warn("Didn't find any new version, "
+ "check package's homepage for "
+ "more informations"));
if __name__ == "__main__":
try:
setupSignals()
main()
except KeyboardInterrupt:
print( "Aborted.")
sys.exit(errno.EINTR)
sys.exit(0)