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#!/usr/bin/python
"""
NAME - metagen
SYNOPSIS - Adds metadata.xml to current directory
AUTHOR - Rob Cakebread <pythonhead@gentoo.org>
USE - metagen --help
EXAMPLES - man metagen
"""
import sys
import re
import os
from optparse import OptionParser
from commands import getstatusoutput
from output import red, blue
import metagenerator
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"""
metadata = metagenerator.MyMetadata()
if options.herd:
herds = options.herd.split(",")
else:
herds = ["no-herd"]
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 repoma 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()
optParser.add_option("-H", action="store", dest="herd", type="string",
help="Name of herd. If not specified, " +
"'no-herd' will be inserted. " +
"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 options.herd == "no-herd" and not options.email and not options.echangelog:
print red("!!! You must specify a maintainer if you have no-herd.")
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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