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#!/usr/bin/python -O
#
# /usr/sbin/webapp-config
# Python script for managing the deployment of web-based
# applications
#
# Originally written for the Gentoo Linux distribution
#
# Copyright (c) 1999-2007 Authors
# Released under v2 of the GNU GPL
#
# Author(s) Stuart Herbert
# Renat Lumpau <rl03@gentoo.org>
# Gunnar Wrobel <wrobel@gentoo.org>
#
# ========================================================================
'''
This helper module intends to provide a wrapper for some Gentoo
specific features used by webapp-config. This might make it easier
to use the tool on other distributions.
'''
__version__ = "$Id: wrapper.py 283 2006-04-20 22:53:04Z wrobel $"
# ========================================================================
# Dependencies
# ------------------------------------------------------------------------
import os, string
from WebappConfig.debug import OUT
from WebappConfig.debug import OUT
from WebappConfig.version import WCVERSION
# ========================================================================
# Portage Wrapper
# ------------------------------------------------------------------------
protect_prefix = '._cfg'
update_command = 'etc-update'
# Link for bug reporting
bugs_link = 'http://bugs.gentoo.org/'
def config_protect(cat, pn, pvr, pm):
'''Return CONFIG_PROTECT (used by protect.py)'''
if pm == "portage":
try:
import portage
except ImportError as e:
OUT.die("Portage libraries not found, quitting:\n%s" % e)
return portage.settings['CONFIG_PROTECT']
elif pm == "paludis":
cmd="paludis --log-level silent --no-color --environment-variable %s/%s CONFIG_PROTECT" % (cat,pn)
fi, fo, fe = os.popen3(cmd)
fi.close()
result_lines = fo.readlines()
fo.close()
fe.close()
return string.join(result_lines, ' ').strip()
else:
OUT.die("Unknown package manager: " + pm)
def config_libdir(pm):
OUT.die("I shouldn't get called at all")
def want_category(config):
'''Check if the package manager requires category info
Portage: optional
Paludis: mandatory
'''
if config.config.get('USER', 'package_manager') == "portage":
return
elif config.config.get('USER', 'package_manager') == "paludis":
if not config.config.has_option('USER', 'cat'):
OUT.die("Package name must be in the form CAT/PN")
else:
OUT.die("Unknown package manager: " + pm)
def get_root(config):
'''Returns the $ROOT variable'''
if config.config.get('USER', 'package_manager') == "portage":
try:
import portage
except ImportError as e:
OUT.die("Portage libraries not found, quitting:\n%s" % e)
return portage.root
elif config.config.get('USER', 'package_manager') == "paludis":
cat = config.maybe_get('cat')
pn = config.maybe_get('pn')
if cat and pn:
cmd="paludis --log-level silent --no-color --environment-variable %s/%s ROOT" % (cat,pn)
fi, fo, fe = os.popen3(cmd)
fi.close()
result_lines = fo.readlines()
fo.close()
fe.close()
if result_lines[0].strip():
return result_lines[0].strip()
else:
return '/'
else:
return '/'
else:
OUT.die("Unknown package manager: " + pm)
def package_installed(full_name, pm):
'''
This function identifies installed packages.
The Portage part is stolen from gentoolkit.
We are not using gentoolkit directly as it doesn't seem to support ${ROOT}
'''
if pm == "portage":
try:
import portage
except ImportError as e:
OUT.die("Portage libraries not found, quitting:\n%s" % e)
try:
t = portage.db[portage.root]["vartree"].dbapi.match(full_name)
# catch the "ambiguous package" Exception
except ValueError as e:
if isinstance(e[0], list):
t = []
for cp in e[0]:
t += portage.db[portage.root]["vartree"].dbapi.match(cp)
else:
raise ValueError(e)
return t
elif pm == "paludis":
cmd="paludis --best-version %s" % (full_name)
fi, fo, fe = os.popen3(cmd)
fi.close()
result_lines = fo.readlines()
error_lines = fe.readlines()
fo.close()
fe.close()
if error_lines:
for i in error_lines:
OUT.warn(i)
return string.join(result_lines, ' ')
else:
OUT.die("Unknown package manager: " + pm)
if __name__ == '__main__':
OUT.info('\nPACKAGE MANAGER WRAPPER')
OUT.info('---------------\n')
if package_installed('=app-admin/webapp-config-' + WCVERSION, 'portage'):
a = 'YES'
else:
a = 'NO'
OUT.info('package_installed("webapp-config-'
+ WCVERSION + '") : ' + a + '\n')
OUT.info('config_protect : ' + config_protect('app-admin','webapp-config',WCVERSION,'portage'))
OUT.info('protect_prefix : ' + protect_prefix)
OUT.info('update_command : ' + update_command)
OUT.info('bugs_link : ' + bugs_link)
|
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