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# Copyright(c) 2009-2010, Gentoo Foundation
#
# Licensed under the GNU General Public License, v2
#
# $Header: $
"""Print total size of files contained in a given package"""
__docformat__ = 'epytext'
# =======
# Imports
# =======
import sys
from getopt import gnu_getopt, GetoptError
import gentoolkit.pprinter as pp
from gentoolkit.equery import format_options, mod_usage, CONFIG
from gentoolkit.helpers import do_lookup
# =======
# Globals
# =======
QUERY_OPTS = {
"includeInstalled": True,
"includePortTree": False,
"includeOverlayTree": False,
"includeMasked": True,
"isRegex": False,
"matchExact": False,
"printMatchInfo": False,
"sizeInBytes": False
}
# =========
# Functions
# =========
def print_help(with_description=True):
"""Print description, usage and a detailed help message.
@type with_description: bool
@param with_description: if true, print module's __doc__ string
"""
if with_description:
print __doc__.strip()
print
# Deprecation warning added by djanderson, 12/2008
depwarning = (
"Default action for this module has changed in Gentoolkit 0.3.",
"Use globbing to simulate the old behavior (see man equery).",
"Use '*' to check all installed packages.",
"Use 'foo-bar/*' to filter by category."
)
for line in depwarning:
sys.stderr.write(pp.warn(line))
print
print mod_usage(mod_name="size")
print
print pp.command("options")
print format_options((
(" -h, --help", "display this help message"),
(" -b, --bytes", "report size in bytes"),
(" -f, --full-regex", "query is a regular expression")
))
def display_size(match_set):
"""Display the total size of all accessible files owned by packages.
@type match_set: list
@param match_set: package cat/pkg-ver strings
"""
for pkg in match_set:
size, files, uncounted = pkg.size()
if CONFIG['verbose']:
print " * %s" % pp.cpv(str(pkg.cpv))
print "Total files : %s".rjust(25) % pp.number(str(files))
if uncounted:
print ("Inaccessible files : %s".rjust(25) %
pp.number(str(uncounted)))
if QUERY_OPTS["sizeInBytes"]:
size_str = pp.number(str(size))
else:
size_str = "%s %s" % format_bytes(size)
print "Total size : %s".rjust(25) % size_str
else:
info = "%s: total(%d), inaccessible(%d), size(%s)"
print info % (str(pkg.cpv), files, uncounted, size)
def format_bytes(bytes_, precision=2):
"""Format bytes into human-readable format (IEC naming standard).
@see: http://mail.python.org/pipermail/python-list/2008-August/503423.html
@rtype: tuple
@return: (str(num), str(label))
"""
labels = (
(1<<40L, 'TiB'),
(1<<30L, 'GiB'),
(1<<20L, 'MiB'),
(1<<10L, 'KiB'),
(1, 'bytes')
)
if bytes_ == 0:
return (pp.number('0'), 'bytes')
elif bytes_ == 1:
return (pp.number('1'), 'byte')
for factor, label in labels:
if not bytes_ >= factor:
continue
float_split = str(bytes_/float(factor)).split('.')
integer = float_split[0]
decimal = float_split[1]
if int(decimal[0:precision]):
float_string = '.'.join([integer, decimal[0:precision]])
else:
float_string = integer
return (pp.number(float_string), label)
def parse_module_options(module_opts):
"""Parse module options and update QUERY_OPTS"""
opts = (x[0] for x in module_opts)
for opt in opts:
if opt in ('-h', '--help'):
print_help()
sys.exit(0)
elif opt in ('-b', '--bytes'):
QUERY_OPTS["sizeInBytes"] = True
elif opt in ('-e', '--exact-name'):
sys.stderr.write(pp.warn("-e, --exact-name is now default."))
warning = pp.warn("Use globbing to simulate the old behavior.")
sys.stderr.write(warning)
print
elif opt in ('-f', '--full-regex'):
QUERY_OPTS['isRegex'] = True
def main(input_args):
"""Parse input and run the program"""
# -e, --exact-name is no longer needed. Kept for compatibility.
# 04/09 djanderson
short_opts = "hbfe"
long_opts = ('help', 'bytes', 'full-regex', 'exact-name')
try:
module_opts, queries = gnu_getopt(input_args, short_opts, long_opts)
except GetoptError, err:
sys.stderr.write(pp.error("Module %s" % err))
print
print_help(with_description=False)
sys.exit(2)
parse_module_options(module_opts)
if not queries:
print_help()
sys.exit(2)
first_run = True
for query in queries:
if not first_run:
print
matches = do_lookup(query, QUERY_OPTS)
if not matches:
sys.stderr.write(pp.error("No package found matching %s" % query))
display_size(matches)
first_run = False
# vim: set ts=4 sw=4 tw=79:
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