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mirror of https://github.com/wting/autojump synced 2024-10-27 20:34:07 +00:00

more pylint

We are good now except for the shell_utility function which needs to be
refactored.
This commit is contained in:
Joel Schaerer 2011-01-04 21:00:59 +01:00
parent b2e010e69a
commit 4e579d5f63

116
autojump
View File

@ -1,19 +1,23 @@
#!/usr/bin/env python
#Copyright Joel Schaerer 2008-2010
#This file is part of autojump
"""Copyright Joel Schaerer 2008-2010
This file is part of autojump
#autojump 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.
#
#autojump 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 autojump. If not, see <http://www.gnu.org/licenses/>.
autojump 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.
autojump 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 autojump. If not, see <http://www.gnu.org/licenses/>.
Autojump is a small tool that maintains a database of your most
used directories, and finds the best match to help you jump to
frequently used places."""
from __future__ import division, print_function
@ -27,7 +31,6 @@ from sys import argv, stderr, version_info
from tempfile import NamedTemporaryFile
from operator import itemgetter
import os
import signal
MAX_KEYWEIGHT = 1000
MAX_STORED_PATHS = 600
COMPLETION_SEPARATOR = '__'
@ -44,30 +47,32 @@ def dicadd(dic, key, increment=1):
dic[key] = dic.get(key, 0.)+increment
def save(path_dict, dic_file):
f = NamedTemporaryFile(dir=CONFIG_DIR, delete=False)
pickle.dump(path_dict, f, -1)
f.flush()
os.fsync(f)
f.close()
"""Save the database in an atomic way, and preserve
a backup file."""
temp = NamedTemporaryFile(dir=CONFIG_DIR, delete=False)
pickle.dump(path_dict, temp, -1)
temp.flush()
os.fsync(temp)
temp.close()
#cf. http://thunk.org/tytso/blog/2009/03/15/dont-fear-the-fsync/
os.rename(f.name, dic_file)
os.rename(temp.name, dic_file)
try: #backup file
import time
if (not os.path.exists(dic_file+".bak") or
time.time()-os.path.getmtime(dic_file+".bak")>86400):
import shutil
shutil.copy(dic_file, dic_file+".bak")
except OSError as e:
print("Error while creating backup autojump file. (%s)" % e,
file=stderr)
except OSError as ex:
print("Error while creating backup autojump file. (%s)" %
ex, file=stderr)
def forget(path_dict, dic_file):
"""Gradually forget about directories. Only call
from the actual jump since it can take time"""
keyweight = sum(path_dict.values())
if keyweight>MAX_KEYWEIGHT:
if keyweight > MAX_KEYWEIGHT:
for k in path_dict.keys():
path_dict[k]*=0.9*MAX_KEYWEIGHT/keyweight
path_dict[k] *= 0.9 * MAX_KEYWEIGHT / keyweight
save(path_dict, dic_file)
def clean_dict(sorted_dirs, path_dict):
@ -75,14 +80,16 @@ def clean_dict(sorted_dirs, path_dict):
Returns True if keys were deleted"""
if len(sorted_dirs) > MAX_STORED_PATHS:
#remove 25 more than needed, to avoid doing it every time
for dir, dummy in sorted_dirs[MAX_STORED_PATHS-25:]:
del path_dict[dir]
for path, dummy in sorted_dirs[MAX_STORED_PATHS-25:]:
del path_dict[path]
return True
else: return False
def match(path, pattern, ignore_case=False, only_end=False):
"""Check whether a path matches a particular pattern"""
try:
if os.path.realpath(os.curdir) == path : return False
if os.path.realpath(os.curdir) == path :
return False
#Sometimes the current path doesn't exist anymore.
#In that case, jump if possible.
except OSError:
@ -92,27 +99,30 @@ def match(path, pattern, ignore_case=False, only_end=False):
else:
match_string = path
if ignore_case:
match=(match_string.lower().find(pattern.lower()) != -1)
does_match = (match_string.lower().find(pattern.lower()) != -1)
else:
match = (match_string.find(pattern) != -1)
does_match = (match_string.find(pattern) != -1)
#return True if there is a match and the path exists
#(useful in the case of external drives, for example)
return match and os.path.exists(path)
return does_match and os.path.exists(path)
def find_matches(dirs, patterns, result_list, ignore_case, max_matches):
"""Find max_matches paths that match the pattern,
and add them to the result_list"""
for path, count in dirs:
if len(result_list) >= max_matches : break
if len(result_list) >= max_matches :
break
#For the last pattern, only match the end of the pattern
if all(match(path, p, ignore_case,
only_end=(n == len(patterns)-1)) for n, p in enumerate(patterns)):
uniqadd(result_list, path)
def open_dic(dic_file, error_recovery=False):
"""Try hard to open the database file, recovering
from backup if needed. """
try:
aj_file = open(dic_file, 'rb')
if version_info[0]>2:
if version_info[0] > 2:
#encoding is only specified for python2.x compatibility
path_dict = pickle.load(aj_file, encoding="utf-8")
else:
@ -128,40 +138,42 @@ def open_dic(dic_file, error_recovery=False):
return open_dic(dic_file, True)
else: return {} #if everything fails, return an empty file
#Main code
try:
def shell_utility():
"""Run this when autojump is called as a shell utility"""
try:
optlist, args = getopt.getopt(argv[1:], 'a',
['stat', 'import', 'completion', 'bash'])
except getopt.GetoptError as e:
print("Unknown command line argument: %s" % e)
except getopt.GetoptError as ex:
print("Unknown command line argument: %s" % ex)
exit(1)
if CONFIG_DIR == os.path.expanduser("~"):
if CONFIG_DIR == os.path.expanduser("~"):
dic_file = CONFIG_DIR+"/.autojump_py"
else:
else:
dic_file = CONFIG_DIR+"/autojump_py"
path_dict = open_dic(dic_file)
if ('-a', '') in optlist:
path_dict = open_dic(dic_file)
if ('-a', '') in optlist:
# The home dir can be reached quickly by "cd"
# and may interfere with other directories
if(args[-1] != os.path.expanduser("~")):
dicadd(path_dict, args[-1])
save(path_dict, dic_file)
elif ('--stat', '') in optlist:
a = list(path_dict.items())
a.sort(key=itemgetter(1))
for path, count in a[-100:]:
elif ('--stat', '') in optlist:
paths = list(path_dict.items())
paths.sort(key=itemgetter(1))
for path, count in paths[-100:]:
print("%.1f:\t%s" % (count, path))
print("Total key weight: %d. Number of stored paths: %d" %
(sum(path_dict.values()), len(a)))
elif ('--import', '') in optlist:
(sum(path_dict.values()), len(paths)))
elif ('--import', '') in optlist:
for i in open(args[-1]).readlines():
dicadd(path_dict, i[:-1])
pickle.dump(path_dict, open(dic_file, 'w'), -1)
else:
else:
import re
completion = False
userchoice = -1 #i if the pattern is of the form __pattern__i, otherwise -1
#userchoice is i if the pattern is __pattern__i, otherwise -1
userchoice = -1
results = []
if ('--completion', '') in optlist:
completion = True
@ -216,3 +228,7 @@ else:
COMPLETION_SEPARATOR, n+1, COMPLETION_SEPARATOR, r)
for n, r in enumerate(results[:8]))))
elif results: print(quotes+results[0]+quotes)
if __name__ == "__main__":
shell_utility()