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# Copyright (C) 2008 Lars Wirzenius <liw@iki.fi>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""Operation to show contents of generations in a backup store."""
import logging
import sys
import time
import obnam
class ShowGenerations(obnam.Operation):
"""Show contents of generations specified by user."""
name = "show-generations"
def format_period(self, start, end):
"""Format time period in a format that is easy to read for humans"""
start = time.localtime(start)
end = time.localtime(end)
if start[0:3] == end[0:3]:
return "%s %s - %s" % \
(time.strftime("%Y-%m-%d", start),
time.strftime("%H:%M", start),
time.strftime("%H:%M", end))
else:
return "%s %s - %s %s" % \
(time.strftime("%Y-%m-%d", start),
time.strftime("%H:%M", start),
time.strftime("%Y-%m-%d", end),
time.strftime("%H:%M", end))
def format_generation_period(self, gen):
"""Return human readable string to show the period of a generation"""
start_time = gen.get_start_time()
end_time = gen.get_end_time()
return self.format_period(start_time, end_time)
def show_filelist(self, fl):
pretty = True
list = []
for c in fl.find_by_kind(obnam.cmp.FILE):
filename = c.first_string_by_kind(obnam.cmp.FILENAME)
if pretty:
list.append((obnam.format.inode_fields(c), filename))
else:
print " ".join(obnam.format.inode_fields(c)), filename
if pretty:
widths = []
for fields, _ in list:
for i in range(len(fields)):
if i >= len(widths):
widths.append(0)
widths[i] = max(widths[i], len(fields[i]))
for fields, filename in list:
cols = []
for i in range(len(widths)):
if i < len(fields):
x = fields[i]
else:
x = ""
cols.append("%*s" % (widths[i], x))
print " ", " ".join(cols), filename
def show_dirs_and_filegroups(self, context, gen):
listing = obnam.format.Listing(context, sys.stdout)
listing.walk(listing.get_objects(gen.get_dirrefs()),
listing.get_objects(gen.get_filegrouprefs()))
def do_it(self, gen_ids):
app = self.get_application()
context = app.get_context()
host = app.load_host()
app.get_store().load_maps()
for gen_id in gen_ids:
gen = obnam.io.get_object(context, gen_id)
if not gen:
logging.warning("Can't find generation %s" % gen_id)
continue
print "Generation: %s %s" % (gen_id,
self.format_generation_period(gen))
fl_id = gen.get_filelistref()
if fl_id:
fl = obnam.io.get_object(context, fl_id)
if fl:
self.show_filelist(fl)
else:
logging.warning("Can't find file list %s" % fl_id)
else:
self.show_dirs_and_filegroups(context, gen)
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