mirror of https://github.com/wting/autojump
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119 lines
4.2 KiB
119 lines
4.2 KiB
#!/usr/bin/python
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#This code is licensed under the GPL, version 3.
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#A full copy of the license can be obtained by contacting the author at the following email adress: joel.schaerer@laposte.net
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from __future__ import division
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import cPickle
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import getopt
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from sys import argv,exit
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import os
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import signal
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max_keyweight=1000
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def signal_handler(arg1,arg2):
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print "Received SIGINT, trying to continue"
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signal.signal(signal.SIGINT,signal_handler) #Don't break on sigint
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def uniqadd(list,key):
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if key not in list:
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list.append(key)
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def dicadd(dic,key,increment=1):
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dic[key]=dic.get(key,0.)+increment
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def match(path,pattern,path_dict,re_flags=0):
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import re
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if os.path.realpath(os.curdir)==path : return False
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if re.search(pattern,"/".join(path.split('/')[-1-pattern.count('/'):]),re_flags) is None:
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return False
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else:
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if os.path.exists(path) : return True
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else: #clean up dead directories
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del path_dict[path]
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return False
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def save(path_dict,dic_file):
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cPickle.dump(path_dict,open(dic_file+".tmp",'w'),-1)
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import shutil
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shutil.copy(dic_file+".tmp",dic_file) #cPickle.dump doesn't seem to be atomic, so this is more secure
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def forget(path_dict,dic_file):
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"""Gradually forget about directories. Only call from the actual jump since it can take time"""
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keyweight=sum(path_dict.values()) #Gradually forget about old directories
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if keyweight>max_keyweight:
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for k in path_dict.keys():
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path_dict[k]*=0.9*max_keyweight/keyweight
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save(path_dict,dic_file)
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def find_matches(dirs,pattern,path_dict,result_list,re_flags,max_matches):
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"""Find max_matches paths that match the pattern, 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 match(path,pattern,path_dict,re_flags):
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uniqadd(result_list,path)
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#Main code
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try:
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optlist, args = getopt.getopt(argv[1:], 'a',['stat','import','completion'])
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except getopt.GetoptError, e:
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print "Unknown command line argument: %s" % e
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exit(1)
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dic_file=os.path.expanduser("~/.autojump_py")
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try:
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aj_file=open(dic_file)
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path_dict=cPickle.load(aj_file)
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aj_file.close()
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except IOError:
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path_dict={}
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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=path_dict.items()
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a.sort(key=lambda e:e[1])
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for path,count in a[-100:]:
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print "%.1f:\t%s" % (count,path)
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print "Total key weight: %d" % sum(path_dict.values())
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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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cPickle.dump(path_dict,open(dic_file,'w'),-1)
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else:
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import re
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completion=False
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userchoice=-1 #3 if the pattern is of the form __pattern__3, otherwise -1
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results=[]
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if ('--completion','') in optlist:
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completion=True
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else:
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forget(path_dict,dic_file) #gradually forget about old directories
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if not args: pattern=""
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else: pattern=args[-1]
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if len(pattern)>0 and pattern[0]=="/" and os.path.exists(pattern): #if pattern is a full path, jump there
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if not completion : print pattern
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else:
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endmatch=re.search("__([0-9]+)",pattern)
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if endmatch:
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userchoice=int(endmatch.group(1))
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pattern=re.sub("__[0-9]+.*","",pattern)
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else:
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endmatch=re.match("(.*)__",pattern)
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if endmatch: pattern=endmatch.group(1)
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dirs=path_dict.items()
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dirs.sort(key=lambda e:e[1],reverse=True)
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find_matches(dirs,pattern,path_dict,results,re_flags=0,max_matches=9)
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dirs=path_dict.items() #we need to recreate the list since the first iteration potentially deletes paths
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dirs.sort(key=lambda e:e[1],reverse=True)
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if completion or not results: #if not found, try ignoring case. On completion always show all results
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find_matches(dirs,pattern,path_dict,results,re_flags=re.IGNORECASE,max_matches=9)
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if userchoice!=-1:
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if len(results) > userchoice-1 : print results[userchoice-1]
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elif len(results) > 1 and completion:
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print "\n".join(("%s__%d__%s" % (pattern,n+1,r) for n,r in enumerate(results[:8])))
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else:
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if results : print results[0]
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