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#!/usr/bin/python
"""
NAME - metagen
SYNOPSIS - Adds metadata.xml to current directory
AUTHOR - Rob Cakebread <cakebread@gmail.com>
AUTHOR - Jesus Rivero <neurogeek@gentoo.org>
USE - metagen --help
EXAMPLES - man metagen
"""
import re
import os
import sys
from optparse import OptionParser
from commands import getstatusoutput
from portage import config
from repoman import herdbase
from portage.output import red, blue
from metagen.version import __version__
from metagen import metagenerator
PORTDIR = config(local_config=False)["PORTDIR"]
HB = herdbase.make_herd_base(os.path.sep.join([PORTDIR, 'metadata', 'herds.xml']))
def parse_echangelog_variable(name, email):
"""Extract developer name and email from ECHANGELOG_USER variable"""
try:
e = os.environ["ECHANGELOG_USER"]
except KeyError:
print red("!!! Environmental variable ECHANGELOG_USER not set.")
print red("!!! Set ECHANGELOG_USER or use -e and -n")
sys.exit(1)
try:
my_email = e[e.find("<") +1:e.find(">")]
except:
print red("!!! ECHANGELOG_USER not set properly")
sys.exit(1)
try:
my_name = e[0:e.find("<")-1]
except:
print red("!!! ECHANGELOG_USER not set properly")
sys.exit(1)
if email:
email = "%s,%s" % (my_email, email)
else:
email = my_email
if name:
name = "%s,%s" % (my_name, name)
else:
name = my_name
return name, email
def generate_xml(options):
"""Returns metadata.xml text"""
herds=[]
metadata = metagenerator.MyMetadata()
if options.herd:
herds = options.herd.split(",")
for herd in herds:
if not HB.known_herd(herd):
print red("!!! Error. Herd %s does not exist." % herd)
sys.exit(1)
metadata.set_herd(herds)
if options.echangelog:
(options.name, options.email) = \
parse_echangelog_variable(options.name, options.email)
if options.email:
names, descs = [], []
if options.name:
names = options.name.split(",")
if options.desc:
descs = options.desc.split(",")
metadata.set_maintainer(options.email.split(","),
names,
descs
)
if options.long:
metadata.set_longdescription(options.long)
return "%s" % metadata
def validate_xml(my_xml):
"""Test for valid XML"""
#TODO validate against DTD
#This just makes sure its valid XML of some sort.
#Probably not necessary since repoman validates against DTD?
re_escape_quotes = re.compile('"')
s = re_escape_quotes.sub('\\"', my_xml)
cmd = "echo \"%s\" | xmllint --valid - 2>&1 > /dev/null" % s
return getstatusoutput(cmd)[0]
if __name__ == '__main__':
optParser = OptionParser(version=__version__)
optParser.add_option("-H", action="store", dest="herd", type="string",
help="Name of herd. If not specified, It will be empty. " +
"This requires either the -e or -m option.")
optParser.add_option("-e", action="store", dest="email", type="string",
help="Maintainer's email address")
optParser.add_option("-n", action="store", dest="name", type="string",
help="Maintainer's name")
optParser.add_option("-m", action="store_true", dest="echangelog",
default=False,
help="Use name and email address from ECHANGELOG_USER "+
"environmental variable. "+
"This is a shortcut for -e <email> -n <name>")
optParser.add_option("-d", action="store", dest="desc", type="string",
help="Description of maintainership")
optParser.add_option("-l", action="store", dest="long", type="string",
help="Long description of package.")
optParser.add_option("-o", action="store", dest="output", type="string",
help="Specify location of output file.")
optParser.add_option("-f", action="store_true", dest="force", default=False,
help="Force overwrite of existing metadata.")
optParser.add_option("-v", action="store_true", dest="verbose", default=True,
help="Verbose. Output of file to stdout. (default)")
optParser.add_option("-q", action="store_false", dest="verbose",
help="Squelch output of file to stdout.")
optParser.add_option("-Q", action="store_true", dest="no_write",
default=False,
help="Do not write file to disk.")
(options, remainingArgs) = optParser.parse_args()
if len(sys.argv) == 1:
optParser.print_help()
sys.exit(1)
if options.desc or options.name:
if not options.email and not options.echangelog:
print red("!!! No maintainer's email address specified.")
print red("!!! Options -d and -n are only valid with -e or -m")
sys.exit(1)
if not options.herd and not options.email and not options.echangelog:
print red("!!! You must specify at least a herd (-H) " +
"or maintainer's email address (-e)\n")
sys.exit(1)
txt = generate_xml(options)
error_status = validate_xml(txt)
if error_status < 0:
print red("!!! Error - Invalid XML")
print red("!!! Please report this bug with the options you used and the output:")
print error_status
print txt
sys.exit(1)
if options.verbose:
print "\n%s" % txt
out_file = "./metadata.xml"
if options.output:
out_file = options.output
if not options.no_write and os.path.exists(out_file):
if not options.force:
print red("!!! File %s exists." % out_file)
print red("!!! Use -f to force overwrite.")
sys.exit(1)
if not options.no_write:
open("%s" % out_file, "w").writelines(txt)
print blue("%s written") % out_file
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