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