/usr/lib/python2.7/dist-packages/ledgerautosync/ledgerwrap.py is in ledger-autosync 0.3.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This file is part of ledger-autosync
#
# ledger-autosync 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 3 of the
# License, or (at your option) any later version.
#
# ledger-autosync 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 ledger-autosync. If not, see
# <http://www.gnu.org/licenses/>.
from __future__ import absolute_import
import csv
import os
import re
import distutils.spawn
import subprocess
from subprocess import Popen, PIPE
from threading import Thread
from Queue import Queue, Empty
from ledgerautosync.converter import Converter
import logging
from fuzzywuzzy import process
csv.register_dialect('ledger', delimiter=',', quoting=csv.QUOTE_ALL, escapechar="\\")
def mk_ledger(ledger_file):
if Ledger.available():
return Ledger(ledger_file)
elif HLedger.available():
return HLedger(ledger_file)
elif LedgerPython.available():
# string_read=True works around http://bugs.ledger-cli.org/show_bug.cgi?id=973
return LedgerPython(ledger_file, string_read=True)
else:
raise Exception("Neither ledger 3 nor hledger found!")
class MetaLedger(object):
@staticmethod
def windows_clean(a):
def clean_str(s):
s = s.replace('%', '')
s = s.replace(' ', '\ ')
s = s.replace('/', '\/')
return s
return [clean_str(s) for s in a]
@staticmethod
def clean_payee(s):
s = s.replace('%', '')
s = s.replace('/', '\/')
s = s.replace("'", "")
return s
# Return True if this ledgerlike interface is available
@staticmethod
def available():
return False
def add_payee(self, payee, account):
if payee not in self.payees:
self.payees[payee] = []
self.payees[payee].append(account)
def filter_accounts(self, accts, exclude):
accts_filtered = [a for a in accts if a != exclude]
if accts_filtered:
return accts_filtered[-1]
else:
return None
def get_account_by_payee(self, payee, exclude):
self.load_payees()
return self.filter_accounts(self.payees.get(payee, []), exclude)
def get_fuzzy_account_by_payee(self, payee, exclude):
self.load_payees()
fuzzed_payee = process.extractOne(payee, self.payees)[0]
return self.filter_accounts([fuzzed_payee], exclude)
def __init__(self):
self.payees = None
class Ledger(MetaLedger):
@staticmethod
def available():
return ((distutils.spawn.find_executable('ledger') is not None) and
(Popen(["ledger", "--version"], stdout=PIPE).
communicate()[0]).startswith("Ledger 3"))
def __init__(self, ledger_file=None, no_pipe=True):
if distutils.spawn.find_executable('ledger') is None:
raise Exception("ledger was not found in $PATH")
self._item = ""
def enqueue_output(out, queue):
buff = ""
while (buff is not None):
buff = out.read(1)
if (buff is not None):
self._item += buff
if self._item.endswith("] "): # prompt
queue.put(self._item[0:-2])
self._item = ""
out.close()
self.use_pipe = (os.name == 'posix') and not(no_pipe)
self.args = ["ledger", "--args-only"]
if ledger_file is not None:
self.args += ["-f", ledger_file]
if self.use_pipe:
self.p = Popen(self.args, bufsize=1, stdin=PIPE, stdout=PIPE,
close_fds=True)
self.q = Queue()
self.t = Thread(target=enqueue_output, args=(self.p.stdout, self.q))
self.t.daemon = True # thread dies with the program
self.t.start()
# read output until prompt
try:
self.q.get(True, 5)
except Empty:
logging.error("Could not get prompt (]) from ledger!")
logging.error("Received: %s" % (self._item))
exit(1)
super(Ledger, self).__init__()
@staticmethod
def pipe_quote(a):
def quote(s):
s = s.replace('/', '\\\\/')
s = s.replace('%', '')
if not(re.match(r"^\w+$", s)):
s = "\"%s\"" % (s)
return s
return [quote(s) for s in a]
def run(self, cmd):
if self.use_pipe:
self.p.stdin.write("csv ")
self.p.stdin.write(" ".join(Ledger.pipe_quote(cmd)))
self.p.stdin.write("\n")
logging.debug(" ".join(Ledger.pipe_quote(cmd)))
try:
return csv.reader(self.q.get(True, 5), dialect='ledger')
except Empty:
logging.error("Could not get prompt from ledger!")
exit(1)
else:
cmd = self.args + ["csv"] + cmd
if os.name == 'nt':
cmd = MetaLedger.windows_clean(cmd)
return csv.reader(subprocess.check_output(cmd).splitlines(), dialect='ledger')
def check_transaction_by_id(self, key, value):
q = ["-E", "meta", "%s=%s" % (key, Converter.clean_id(value))]
try:
self.run(q).next()
return True
except StopIteration:
return False
def load_payees(self):
if self.payees is None:
self.payees = {}
r = self.run(["show"])
for line in r:
self.add_payee(line[2], line[3])
class LedgerPython(MetaLedger):
@staticmethod
def available():
try:
import ledger
return True
except ImportError:
return False
def __init__(self, ledger_file=None, string_read=True):
# sanity check for ledger python interface
try:
import ledger
except ImportError:
raise Exception("Ledger python interface not found!")
if ledger_file is None:
# TODO - better loading
raise Exception
else:
if string_read:
self.session = ledger.Session()
self.journal = self.session.read_journal_from_string(
open(ledger_file).read())
else:
self.journal = ledger.read_journal(ledger_file)
super(LedgerPython, self).__init__()
def load_payees(self):
if self.payees is None:
self.payees = {}
for xact in self.journal:
for post in xact.posts():
self.add_payee(xact.payee, post.reported_account().fullname())
def check_transaction_by_id(self, key, value):
q = self.journal.query("-E meta %s=\"%s\"" %
(key, Converter.clean_id(value)))
return len(q) > 0
class HLedger(MetaLedger):
@staticmethod
def available():
return (distutils.spawn.find_executable('hledger') is not None)
@staticmethod
def quote(a):
def quote_str(s):
s = s.replace('(', '\(')
s = s.replace(')', '\)')
return s
return [quote_str(s) for s in a]
def __init__(self, ledger_file=None):
if distutils.spawn.find_executable('hledger') is None:
raise Exception("hledger was not found in $PATH")
self.args = ["hledger"]
if ledger_file is not None:
self.args += ["-f", ledger_file]
super(HLedger, self).__init__()
def run(self, cmd):
cmd = HLedger.quote(self.args + cmd)
if os.name == 'nt':
cmd = MetaLedger.windows_clean(cmd)
logging.debug(" ".join(cmd))
return subprocess.check_output(cmd)
def check_transaction_by_id(self, key, value):
cmd = ["reg", "tag:%s=%s" % (key, Converter.clean_id(value))]
return self.run(cmd) != ''
def load_payees(self):
if self.payees is None:
self.payees = {}
cmd = ["reg", "-O", "csv"]
r = csv.DictReader(self.run(cmd).splitlines())
headers = r.next()
for line in r:
self.add_payee(line['description'], line['account'])
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