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gramps/gramps/cli/clidbman.py

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#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2007 Donald N. Allingham
# Copyright (C) 2009 Brian G. Matherly
# Copyright (C) 2009 Gary Burton
#
# 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.
#
"""
Provide the management of databases from CLI. This includes opening, renaming,
creating, and deleting of databases.
"""
#-------------------------------------------------------------------------
#
# Standard python modules
#
#-------------------------------------------------------------------------
import os
import sys
import time
import io
from urllib.parse import urlparse
from urllib.request import urlopen, url2pathname
import tempfile
#-------------------------------------------------------------------------
#
# set up logging
#
#-------------------------------------------------------------------------
import logging
LOG = logging.getLogger(".clidbman")
from gramps.gen.db.dbconst import DBLOGNAME
_LOG = logging.getLogger(DBLOGNAME)
#-------------------------------------------------------------------------
#
# gramps modules
#
#-------------------------------------------------------------------------
from gramps.gen.const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext
from gramps.gen.plug import BasePluginManager
from gramps.gen.config import config
from gramps.gen.constfunc import win, conv_to_unicode
#-------------------------------------------------------------------------
#
# constants
#
#-------------------------------------------------------------------------
DEFAULT_TITLE = _("Family Tree")
NAME_FILE = "name.txt"
META_NAME = "meta_data.db"
#-------------------------------------------------------------------------
#
# functions
#
#-------------------------------------------------------------------------
def _errordialog(title, errormessage):
"""
Show the error. A title for the error and an errormessage
"""
print(_('ERROR: %(title)s \n %(message)s') % {
'title': title,
'message': errormessage})
sys.exit()
#-------------------------------------------------------------------------
#
# CLIDbManager
#
#-------------------------------------------------------------------------
class CLIDbManager(object):
"""
Database manager without GTK functionality, allows users to create and
open databases
"""
IND_NAME = 0
IND_PATH = 1
IND_PATH_NAMEFILE = 2
IND_TVAL_STR = 3
IND_TVAL = 4
IND_USE_ICON_BOOL = 5
IND_STOCK_ID =6
ICON_NONE = 0
ICON_RECOVERY = 1
ICON_LOCK = 2
ICON_OPEN = 3
ICON_MAP = {
ICON_NONE : None,
ICON_RECOVERY : None,
ICON_LOCK : None,
ICON_OPEN : None,
}
ERROR = _errordialog
def __init__(self, dbstate):
self.dbstate = dbstate
self.msg = None
if dbstate:
self.active = dbstate.db.get_save_path()
else:
self.active = None
self.current_names = []
if dbstate:
self._populate_cli()
def empty(self, val):
"""
Callback that does nothing
"""
pass
def get_dbdir_summary(self, dirpath, name):
"""
dirpath: full path to database
name: proper name of family tree
Returns dictionary of summary item.
Should include at least, if possible:
_("Path")
_("Family Tree")
_("Last accessed")
_("Database backend")
_("Locked?")
and these details:
_("Number of people")
_("Version")
_("Schema version")
"""
dbid = "bsddb"
dbid_path = os.path.join(dirpath, "database.txt")
if os.path.isfile(dbid_path):
dbid = open(dbid_path).read().strip()
try:
database = self.dbstate.make_database(dbid)
database.load(dirpath, None)
retval = database.get_summary()
except Exception as msg:
retval = {"Unavailable": str(msg)[:74] + "..."}
retval.update({
_("Family Tree"): name,
_("Path"): dirpath,
_("Database backend"): dbid,
_("Last accessed"): time_val(dirpath)[1],
_("Locked?"): self.is_locked(dirpath),
})
return retval
def family_tree_summary(self):
"""
Return a list of dictionaries of the known family trees.
"""
# make the default directory if it does not exist
summary_list = []
for item in self.current_names:
(name, dirpath, path_name, last,
tval, enable, stock_id) = item
retval = self.get_dbdir_summary(dirpath, name)
summary_list.append( retval )
return summary_list
def _populate_cli(self):
"""
Get the list of current names in the database dir
"""
# make the default directory if it does not exist
dbdir = os.path.expanduser(config.get('behavior.database-path'))
db_ok = make_dbdir(dbdir)
self.current_names = []
if db_ok:
for dpath in os.listdir(dbdir):
dirpath = os.path.join(dbdir, dpath)
path_name = os.path.join(dirpath, NAME_FILE)
if os.path.isfile(path_name):
file = io.open(path_name, 'r', encoding='utf8')
name = file.readline().strip()
file.close()
(tval, last) = time_val(dirpath)
(enable, stock_id) = self.icon_values(dirpath, self.active,
self.dbstate.db.is_open())
if (stock_id == 'gramps-lock'):
last = find_locker_name(dirpath)
self.current_names.append(
(name, os.path.join(dbdir, dpath), path_name,
last, tval, enable, stock_id))
self.current_names.sort()
def get_family_tree_path(self, name):
"""
Given a name, return None if name not existing or the path to the
database if it is a known database name.
"""
for data in self.current_names:
if data[0] == name:
return data[1]
return None
def family_tree_list(self):
"""
Return a list of name, dirname of the known family trees
"""
lst = [(x[0], x[1]) for x in self.current_names]
return lst
def __start_cursor(self, msg):
"""
Do needed things to start import visually, eg busy cursor
"""
print(_('Starting Import, %s') % msg)
def __end_cursor(self):
"""
Set end of a busy cursor
"""
print(_('Import finished...'))
def create_new_db_cli(self, title=None, create_db=True, dbid=None):
"""
Create a new database.
"""
new_path = find_next_db_dir()
os.mkdir(new_path)
path_name = os.path.join(new_path, NAME_FILE)
if title is None:
name_list = [ name[0] for name in self.current_names ]
title = find_next_db_name(name_list)
name_file = io.open(path_name, "w", encoding='utf8')
name_file.write(title)
name_file.close()
if create_db:
# write the version number into metadata
if dbid is None:
dbid = "bsddb"
newdb = self.dbstate.make_database(dbid)
newdb.write_version(new_path)
(tval, last) = time_val(new_path)
self.current_names.append((title, new_path, path_name,
last, tval, False, ""))
return new_path, title
def _create_new_db(self, title=None, dbid=None):
"""
Create a new database, do extra stuff needed
"""
return self.create_new_db_cli(title, dbid=dbid)
def import_new_db(self, filename, user):
"""
Attempt to import the provided file into a new database.
A new database will only be created if an appropriate importer was
found.
:param filename: a fully-qualified path, filename, and
extension to open.
:param user: a :class:`.cli.user.User` or :class:`.gui.user.User`
instance for managing user interaction.
:returns: A tuple of (new_path, name) for the new database
or (None, None) if no import was performed.
"""
pmgr = BasePluginManager.get_instance()
# check to see if it isn't a filename directly:
if not os.path.isfile(filename):
# Allow URL names here; make temp file if necessary
url = urlparse(filename)
if url.scheme != "":
if url.scheme == "file":
filename = url2pathname(filename[7:])
else:
url_fp = urlopen(filename) # open URL
# make a temp local file:
ext = os.path.splitext(url.path)[1]
fd, filename = tempfile.mkstemp(suffix=ext)
temp_fp = os.fdopen(fd, "w")
# read from URL:
data = url_fp.read()
# write locally:
temp_fp.write(data)
url_fp.close()
from gen.db.dbconst import BDBVERSFN
versionpath = os.path.join(name, BDBVERSFN)
_LOG.debug("Write bsddb version %s" % str(dbase.version()))
with open(versionpath, "w") as version_file:
version_file.write(str(dbase.version()))
temp_fp.close()
(name, ext) = os.path.splitext(os.path.basename(filename))
format = ext[1:].lower()
for plugin in pmgr.get_import_plugins():
if format == plugin.get_extension():
new_path, name = self._create_new_db(name)
# Create a new database
self.__start_cursor(_("Importing data..."))
dbase = self.dbstate.make_database("bsddb")
dbase.load(new_path, user.callback)
import_function = plugin.get_import_function()
import_function(dbase, filename, user)
# finish up
self.__end_cursor()
dbase.close()
return new_path, name
return None, None
def is_locked(self, dbpath):
"""
Returns True if there is a lock file in the dirpath
"""
if os.path.isfile(os.path.join(dbpath,"lock")):
return True
return False
def needs_recovery(self, dbpath):
"""
Returns True if the database in dirpath needs recovery
"""
if os.path.isfile(os.path.join(dbpath,"need_recover")):
return True
return False
def rename_database(self, filepath, new_text):
"""
Renames the database by writing the new value to the name.txt file
Returns old_name, new_name if success, None, None if no success
"""
try:
filepath = conv_to_unicode(filepath, 'utf8')
new_text = conv_to_unicode(new_text, 'utf8')
name_file = io.open(filepath, "r", encoding='utf8')
old_text=name_file.read()
name_file.close()
name_file = io.open(filepath, "w", encoding='utf8')
name_file.write(new_text)
name_file.close()
except (OSError, IOError) as msg:
CLIDbManager.ERROR(_("Could not rename Family Tree"),
str(msg))
return None, None
return old_text, new_text
def break_lock(self, dbpath):
"""
Breaks the lock on a database
"""
if os.path.exists(os.path.join(dbpath, "lock")):
os.unlink(os.path.join(dbpath, "lock"))
def icon_values(self, dirpath, active, is_open):
"""
If the directory path is the active path, then return values
that indicate to use the icon, and which icon to use.
"""
if os.path.isfile(os.path.join(dirpath,"need_recover")):
return (True, self.ICON_MAP[self.ICON_RECOVERY])
elif dirpath == active and is_open:
return (True, self.ICON_MAP[self.ICON_OPEN])
elif os.path.isfile(os.path.join(dirpath,"lock")):
return (True, self.ICON_MAP[self.ICON_LOCK])
else:
return (False, self.ICON_MAP[self.ICON_NONE])
def make_dbdir(dbdir):
"""
Create the default database directory, as defined by dbdir
"""
try:
if not os.path.isdir(dbdir):
os.makedirs(dbdir)
except (IOError, OSError) as msg:
LOG.error(_("\nERROR: Wrong database path in Edit Menu->Preferences.\n"
"Open preferences and set correct database path.\n\n"
"Details: Could not make database directory:\n %s\n\n") % msg)
return False
return True
def find_next_db_name(name_list):
"""
Scan the name list, looking for names that do not yet exist.
Use the DEFAULT_TITLE as the basis for the database name.
"""
i = 1
while True:
title = "%s %d" % (DEFAULT_TITLE, i)
if title not in name_list:
return conv_to_unicode(title)
i += 1
def find_next_db_dir():
"""
Searches the default directory for the first available default
database name. Base the name off the current time. In all actuality,
the first should be valid.
"""
while True:
base = "%x" % int(time.time())
dbdir = os.path.expanduser(config.get('behavior.database-path'))
new_path = os.path.join(dbdir, base)
if not os.path.isdir(new_path):
break
return new_path
def time_val(dirpath):
"""
Return the last modified time of the database. We do this by looking
at the modification time of the meta db file. If this file does not
exist, we indicate that database as never modified.
"""
meta = os.path.join(dirpath, META_NAME)
if os.path.isfile(meta):
tval = os.stat(meta)[9]
# This gives creation date in Windows, but correct date in Linux
if win():
# Try to use last modified date instead in Windows
# and check that it is later than the creation date.
tval_mod = os.stat(meta)[8]
if tval_mod > tval:
tval = tval_mod
last = time.strftime('%x %X', time.localtime(tval))
else:
tval = 0
last = _("Never")
return (tval, last)
def find_locker_name(dirpath):
"""
Opens the lock file if it exists, reads the contexts which is "USERNAME"
and returns the contents, with correct string before "USERNAME",
so the message can be printed with correct locale.
If a file is encountered with errors, we return 'Unknown'
This data can eg be displayed in the time column of the manager
"""
try:
fname = os.path.join(dirpath, "lock")
ifile = io.open(fname, 'r', encoding='utf8')
username = ifile.read().strip()
# feature request 2356: avoid genitive form
last = _("Locked by %s") % username
ifile.close()
except (OSError, IOError, UnicodeDecodeError):
last = _("Unknown")
return last
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