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https://github.com/wting/autojump
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more pylint
We are good now except for the shell_utility function which needs to be refactored.
This commit is contained in:
Joel Schaerer
parent
b2e010e69a
commit
4e579d5f63
94
autojump
94
autojump
@ -1,19 +1,23 @@
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#!/usr/bin/env python
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#Copyright Joel Schaerer 2008-2010
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#This file is part of autojump
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"""Copyright Joel Schaerer 2008-2010
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This file is part of autojump
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#autojump is free software: you can redistribute it and/or modify
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#it under the terms of the GNU General Public License as published by
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#the Free Software Foundation, either version 3 of the License, or
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#(at your option) any later version.
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#
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#autojump is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#
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#You should have received a copy of the GNU General Public License
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#along with autojump. If not, see <http://www.gnu.org/licenses/>.
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autojump is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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autojump is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with autojump. If not, see <http://www.gnu.org/licenses/>.
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Autojump is a small tool that maintains a database of your most
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used directories, and finds the best match to help you jump to
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frequently used places."""
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from __future__ import division, print_function
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@ -27,7 +31,6 @@ from sys import argv, stderr, version_info
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from tempfile import NamedTemporaryFile
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from operator import itemgetter
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import os
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import signal
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MAX_KEYWEIGHT = 1000
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MAX_STORED_PATHS = 600
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COMPLETION_SEPARATOR = '__'
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@ -44,22 +47,24 @@ def dicadd(dic, key, increment=1):
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dic[key] = dic.get(key, 0.)+increment
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def save(path_dict, dic_file):
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f = NamedTemporaryFile(dir=CONFIG_DIR, delete=False)
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pickle.dump(path_dict, f, -1)
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f.flush()
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os.fsync(f)
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f.close()
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"""Save the database in an atomic way, and preserve
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a backup file."""
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temp = NamedTemporaryFile(dir=CONFIG_DIR, delete=False)
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pickle.dump(path_dict, temp, -1)
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temp.flush()
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os.fsync(temp)
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temp.close()
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#cf. http://thunk.org/tytso/blog/2009/03/15/dont-fear-the-fsync/
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os.rename(f.name, dic_file)
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os.rename(temp.name, dic_file)
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try: #backup file
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import time
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if (not os.path.exists(dic_file+".bak") or
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time.time()-os.path.getmtime(dic_file+".bak")>86400):
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import shutil
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shutil.copy(dic_file, dic_file+".bak")
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except OSError as e:
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print("Error while creating backup autojump file. (%s)" % e,
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file=stderr)
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except OSError as ex:
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print("Error while creating backup autojump file. (%s)" %
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ex, file=stderr)
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def forget(path_dict, dic_file):
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"""Gradually forget about directories. Only call
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@ -75,14 +80,16 @@ def clean_dict(sorted_dirs, path_dict):
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Returns True if keys were deleted"""
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if len(sorted_dirs) > MAX_STORED_PATHS:
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#remove 25 more than needed, to avoid doing it every time
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for dir, dummy in sorted_dirs[MAX_STORED_PATHS-25:]:
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del path_dict[dir]
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for path, dummy in sorted_dirs[MAX_STORED_PATHS-25:]:
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del path_dict[path]
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return True
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else: return False
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def match(path, pattern, ignore_case=False, only_end=False):
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"""Check whether a path matches a particular pattern"""
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try:
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if os.path.realpath(os.curdir) == path : return False
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if os.path.realpath(os.curdir) == path :
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return False
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#Sometimes the current path doesn't exist anymore.
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#In that case, jump if possible.
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except OSError:
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@ -92,24 +99,27 @@ def match(path, pattern, ignore_case=False, only_end=False):
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else:
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match_string = path
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if ignore_case:
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match=(match_string.lower().find(pattern.lower()) != -1)
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does_match = (match_string.lower().find(pattern.lower()) != -1)
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else:
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match = (match_string.find(pattern) != -1)
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does_match = (match_string.find(pattern) != -1)
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#return True if there is a match and the path exists
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#(useful in the case of external drives, for example)
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return match and os.path.exists(path)
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return does_match and os.path.exists(path)
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def find_matches(dirs, patterns, result_list, ignore_case, max_matches):
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"""Find max_matches paths that match the pattern,
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and add them to the result_list"""
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for path, count in dirs:
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if len(result_list) >= max_matches : break
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if len(result_list) >= max_matches :
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break
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#For the last pattern, only match the end of the pattern
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if all(match(path, p, ignore_case,
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only_end=(n == len(patterns)-1)) for n, p in enumerate(patterns)):
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uniqadd(result_list, path)
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def open_dic(dic_file, error_recovery=False):
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"""Try hard to open the database file, recovering
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from backup if needed. """
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try:
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aj_file = open(dic_file, 'rb')
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if version_info[0] > 2:
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@ -128,12 +138,13 @@ def open_dic(dic_file, error_recovery=False):
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return open_dic(dic_file, True)
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else: return {} #if everything fails, return an empty file
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#Main code
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def shell_utility():
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"""Run this when autojump is called as a shell utility"""
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try:
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optlist, args = getopt.getopt(argv[1:], 'a',
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['stat', 'import', 'completion', 'bash'])
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except getopt.GetoptError as e:
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print("Unknown command line argument: %s" % e)
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except getopt.GetoptError as ex:
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print("Unknown command line argument: %s" % ex)
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exit(1)
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if CONFIG_DIR == os.path.expanduser("~"):
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@ -148,12 +159,12 @@ if ('-a', '') in optlist:
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dicadd(path_dict, args[-1])
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save(path_dict, dic_file)
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elif ('--stat', '') in optlist:
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a = list(path_dict.items())
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a.sort(key=itemgetter(1))
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for path, count in a[-100:]:
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paths = list(path_dict.items())
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paths.sort(key=itemgetter(1))
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for path, count in paths[-100:]:
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print("%.1f:\t%s" % (count, path))
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print("Total key weight: %d. Number of stored paths: %d" %
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(sum(path_dict.values()), len(a)))
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(sum(path_dict.values()), len(paths)))
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elif ('--import', '') in optlist:
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for i in open(args[-1]).readlines():
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dicadd(path_dict, i[:-1])
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@ -161,7 +172,8 @@ elif ('--import', '') in optlist:
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else:
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import re
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completion = False
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userchoice = -1 #i if the pattern is of the form __pattern__i, otherwise -1
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#userchoice is i if the pattern is __pattern__i, otherwise -1
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userchoice = -1
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results = []
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if ('--completion', '') in optlist:
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completion = True
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@ -216,3 +228,7 @@ else:
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COMPLETION_SEPARATOR, n+1, COMPLETION_SEPARATOR, r)
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for n, r in enumerate(results[:8]))))
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elif results: print(quotes+results[0]+quotes)
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if __name__ == "__main__":
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shell_utility()
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