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# -*- coding: utf-8 -*-
#
# Copyright (c) 2012-2018 by nils_2 <weechatter@arcor.de>
#
# save and restore global and/or buffer command history
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
#
# 2018-08-04: nils_2 (freenode.#weechat)
# 0.8 : add option 'save_buffer'
# : thanks catbeard for revise the help text
#
# 2018-08-01: nils_2 (freenode.#weechat)
# 0.7 : rmodifier routine removed
# : bug fixes
#
# 2017-12-14: Sébastien Helleu <flashcode@flashtux.org>
# 0.6 : rename command "/autosetbuffer" by "/buffer_autoset" in example
#
# 2015-04-05: nils_2 (freenode.#weechat)
# 0.5 : change priority of hook_signal('buffer_opened') to 100
#
# 2013-01-25: nils_2 (freenode.#weechat)
# 0.4 : make script compatible with Python 3.x
#
# 2013-01-20: nils_2, (freenode.#weechat)
# 0.3: fix wrong command argument in help-text
#
# 2012-12-21: nils_2, (freenode.#weechat)
# 0.2 : fix UnicodeEncodeError
#
# 2012-12-09: nils_2, (freenode.#weechat)
# 0.1 : initial release
#
# thanks to nestib for help with regex and for the rmodifier idea
#
# requires: WeeChat version 0.4.0
#
# Development is currently hosted at
# https://github.com/weechatter/weechat-scripts
try:
import weechat,re,os
except Exception:
print("This script must be run under WeeChat.")
print("Get WeeChat now at: http://www.weechat.org/")
quit()
SCRIPT_NAME = 'histman'
SCRIPT_AUTHOR = 'nils_2 <weechatter@arcor.de>'
SCRIPT_VERSION = '0.8'
SCRIPT_LICENSE = 'GPL'
SCRIPT_DESC = 'save and restore global and/or buffer command history'
OPTIONS = { 'number' : ('0','number of history commands/text to save. A positive number will save from oldest to latest, a negative number will save from latest to oldest. 0 = save whole history (e.g. -10 will save the last 10 history entries'),
'pattern' : ('(.*password|.*nickserv|/quit)','a simple regex to ignore commands/text. Empty value disable pattern matching'),
'skip_double' : ('on','skip lines that already exists (case sensitive)'),
'save' : ('all','define what should be saved from history. Possible values are \"command\", \"text\", \"all\". This is a fallback option (see /help ' + SCRIPT_NAME +')'),
'history_dir' : ('%h/history','locale cache directory for history files (\"%h\" will be replaced by WeeChat home, \"~/.weechat\" by default)'),
'save_global' : ('off','save global history, possible values are \"command\", \"text\", \"all\" or \"off\"(default: off)'),
'save_buffer' : ('off','save buffer history from all buffers, possible values are \"on\", \"off\". Using this option, localvar from buffer will be ignored (default: off)'),
'min_length' : ('2','minimum length of command/text (default: 2)'),
'buffer_close' : ('off','save command history, when buffer will be closed (default: off)'),
}
filename_global_history = 'global_history'
possible_save_options = ['command', 'text', 'all']
history_list = []
# =================================[ save/restore buffer history ]================================
def save_history():
global history_list
# get buffers
ptr_infolist_buffer = weechat.infolist_get('buffer','','')
while weechat.infolist_next(ptr_infolist_buffer):
ptr_buffer = weechat.infolist_pointer(ptr_infolist_buffer,'pointer')
# check for localvar_save_history
if not weechat.buffer_get_string(ptr_buffer, 'localvar_save_history') and OPTIONS['save_buffer'].lower() == 'off':
continue
plugin = weechat.buffer_get_string(ptr_buffer, 'localvar_plugin')
name = weechat.buffer_get_string(ptr_buffer, 'localvar_name')
filename = get_filename_with_path('%s.%s' % (plugin,name))
get_buffer_history(ptr_buffer)
if len(history_list):
write_history(filename)
weechat.infolist_free(ptr_infolist_buffer)
if OPTIONS['save_global'].lower() != 'off':
get_buffer_history('') # buffer pointer (if not set, return global history)
if len(history_list):
write_history(filename_global_history)
def get_buffer_history(ptr_buffer):
global history_list
history_list = []
ptr_buffer_history = weechat.infolist_get('history',ptr_buffer,'')
if not ptr_buffer_history:
return
while weechat.infolist_next(ptr_buffer_history):
line = weechat.infolist_string(ptr_buffer_history, 'text')
if add_buffer_line(line,ptr_buffer):
history_list.insert(0,line)
weechat.infolist_free(ptr_buffer_history)
# return 1; line will be saved
# return 0; line won't be saved
def add_buffer_line(line, ptr_buffer):
global history_list
# min_length reached?
if len(line) < int(OPTIONS['min_length']):
return 0
add_line = 0
# ptr_buffer empty = global history
if ptr_buffer: # buffer history
save_history = weechat.buffer_get_string(ptr_buffer, 'localvar_save_history').lower()
if not save_history.lower() in possible_save_options:
save_history = OPTIONS['save'].lower()
else: # global history
save_history = OPTIONS['save_global'].lower()
if not OPTIONS['save_global'].lower() in possible_save_options:
save_history = OPTIONS['save'].lower()
# no save option given? save nothing
if save_history == '':
return 0
if save_history == 'command':
command_chars = ("/%s" % weechat.config_string(weechat.config_get('weechat.look.command_chars')))
# a valid command must have at least two chars and first and second char are not equal!
if len(line) > 1 and line[0] in command_chars and line[0] != line[1]:
add_line = 1
else:
return 0
elif save_history == 'text':
command_chars = ("/%s" % weechat.config_string(weechat.config_get('weechat.look.command_chars')))
# test for "//" = text
if line[0] == line[1] and line[0] in command_chars:
add_line = 1
# test for "/n" = command
elif line[0] != line[1] and line[0] in command_chars:
return 0
else:
add_line = 1
elif save_history == 'all':
add_line = 1
else: # not one of given values. save nothing!
return 0
# lines already exist?
if OPTIONS['skip_double'].lower() == 'on':
history_list2 = []
history_list2 = [element.lower() for element in history_list]
if line.lower() in history_list2:
return 0
else:
add_line = 1
else:
add_line = 1
if add_line == 0:
return 0
pattern_matching = 0
# pattern matching for user option
if OPTIONS['pattern'] != '':
filter_re=re.compile(OPTIONS['pattern'], re.I)
# pattern matched
if filter_re.match(line):
pattern_matching = 1
if add_line == 1 and pattern_matching == 0:
return 1
return 0
# =================================[ read/write history to file ]=================================
def read_history(filename,ptr_buffer):
global_history = 0
# get buffer_autoset_option as a fallback. could happen that the localvar is not already set to buffer
plugin = weechat.buffer_get_string(ptr_buffer, 'localvar_plugin')
name = weechat.buffer_get_string(ptr_buffer, 'localvar_name')
buffer_autoset_option = ('buffer_autoset.buffer.%s.%s.localvar_set_save_history' % (plugin,name))
buffer_autoset_option = weechat.config_get(buffer_autoset_option)
# global history does not use buffer pointers!
if filename == filename_global_history:
global_history = 1
filename = get_filename_with_path(filename)
# filename exists?
if not os.path.isfile(filename):
return
# check for buffer history (0, global = 1)
if global_history == 0 and OPTIONS['save_buffer'].lower() == 'off':
# localvar_save_history exists for buffer?
if not ptr_buffer and not buffer_autoset_option and not weechat.buffer_get_string(ptr_buffer, 'localvar_save_history'):
return
hdata = weechat.hdata_get('history')
if not hdata:
return
try:
f = open(filename, 'r')
# for line in f.xreadlines(): # old python 2.x
for line in f: # should also work with python 2.x
# line = line.decode('utf-8')
line = str(line.strip())
if ptr_buffer:
# add to buffer history
weechat.hdata_update(hdata, '', { 'buffer': ptr_buffer, 'text': line })
else:
# add to global history
weechat.hdata_update(hdata, '', { 'text': line })
f.close()
except:
if global_history == 1:
weechat.prnt('','%s%s: Error loading global history from "%s"' % (weechat.prefix('error'), SCRIPT_NAME, filename))
else:
name = weechat.buffer_get_string(ptr_buffer, 'localvar_name')
weechat.prnt('','%s%s: Error loading buffer history for buffer "%s" from "%s"' % (weechat.prefix('error'), SCRIPT_NAME, name, filename))
raise
def write_history(filename):
global history_list
filename = get_filename_with_path(filename)
if OPTIONS['number'] != '' and OPTIONS['number'].isdigit():
if int(OPTIONS['number']) < 0:
save_from_position = len(history_list) - abs(int(OPTIONS['number']))
if save_from_position == len(history_list) or save_from_position < 0:
save_from_position = 0
elif int(OPTIONS['number']) > 0:
save_to_position = int(OPTIONS['number'])
if save_to_position > len(history_list):
save_to_position = len(history_list)
else:
save_from_position = 0
try:
f = open(filename, 'w')
if int(OPTIONS['number']) <= 0:
i = save_from_position
# for i in range(len(a)):
while i < len(history_list):
f.write('%s\n' % history_list[i])
i = i + 1
if int(OPTIONS['number']) > 0:
i = 0
while i < save_to_position:
f.write('%s\n' % history_list[i])
i = i + 1
f.close()
except:
weechat.prnt('','%s%s: Error writing history to "%s"' % (weechat.prefix('error'),SCRIPT_NAME,filename))
raise
def get_filename_with_path(filename):
path = OPTIONS['history_dir'].replace("%h",weechat.info_get("weechat_dir", ""))
return os.path.join(path,filename)
def config_create_dir():
dir = OPTIONS['history_dir'].replace("%h",weechat.info_get("weechat_dir", ""))
if not os.path.isdir(dir):
os.makedirs(dir, mode=0o700)
# ===========================================[ Hooks() ]==========================================
def create_hooks():
# create hooks
weechat.hook_signal('quit', 'quit_signal_cb', '')
weechat.hook_signal('upgrade_ended', 'upgrade_ended_cb', '')
# low priority for hook_signal('buffer_opened') to ensure that buffer_autoset hook_signal() runs first
weechat.hook_signal('1000|buffer_opened', 'buffer_opened_cb', '')
weechat.hook_config('plugins.var.python.' + SCRIPT_NAME + '.*', 'toggle_refresh', '' )
weechat.hook_signal('buffer_closing', 'buffer_closing_cb', '')
def quit_signal_cb(data, signal, signal_data):
# create dir, if not exist
config_create_dir()
save_history()
return weechat.WEECHAT_RC_OK
def buffer_opened_cb(data, signal, signal_data):
ptr_buffer = signal_data
plugin = weechat.buffer_get_string(ptr_buffer, 'localvar_plugin')
name = weechat.buffer_get_string(ptr_buffer, 'localvar_name')
filename = get_filename_with_path('%s.%s' % (plugin,name))
read_history(filename,ptr_buffer)
return weechat.WEECHAT_RC_OK
def buffer_closing_cb(data, signal, signal_data):
if OPTIONS['buffer_close'].lower() == 'on' and signal_data:
# check for localvar_save_history
if not weechat.buffer_get_string(signal_data, 'localvar_save_history') and OPTIONS['save_buffer'].lower() == 'off':
return weechat.WEECHAT_RC_OK
plugin = weechat.buffer_get_string(signal_data, 'localvar_plugin')
name = weechat.buffer_get_string(signal_data, 'localvar_name')
filename = get_filename_with_path('%s.%s' % (plugin,name))
get_buffer_history(signal_data)
if len(history_list):
write_history(filename)
return weechat.WEECHAT_RC_OK
def upgrade_ended_cb(data, signal, signal_data):
weechat.buffer_set(weechat.buffer_search_main(), 'localvar_set_histman', 'on')
return weechat.WEECHAT_RC_OK
def histman_cmd_cb(data, buffer, args):
if args == '':
weechat.command('', '/help %s' % SCRIPT_NAME)
return weechat.WEECHAT_RC_OK
argv = args.strip().split(' ', 1)
if len(argv) == 0:
return weechat.WEECHAT_RC_OK
if argv[0].lower() == 'save':
config_create_dir()
save_history()
elif argv[0].lower() == 'list':
weechat.command('','/set *.localvar_set_save_history')
else:
weechat.command('', '/help %s' % SCRIPT_NAME)
return weechat.WEECHAT_RC_OK
# ================================[ weechat options & description ]===============================
def init_options():
for option,value in list(OPTIONS.items()):
if not weechat.config_is_set_plugin(option):
weechat.config_set_plugin(option, value[0])
weechat.config_set_desc_plugin(option, '%s (default: "%s")' % (value[1], value[0]))
OPTIONS[option] = value[0]
else:
OPTIONS[option] = weechat.config_get_plugin(option)
def toggle_refresh(pointer, name, value):
global OPTIONS
option = name[len('plugins.var.python.' + SCRIPT_NAME + '.'):] # get optionname
OPTIONS[option] = value # save new value
weechat.bar_item_update(SCRIPT_NAME)
return weechat.WEECHAT_RC_OK
# ================================[ main ]===============================
if __name__ == '__main__':
if weechat.register(SCRIPT_NAME, SCRIPT_AUTHOR, SCRIPT_VERSION, SCRIPT_LICENSE, SCRIPT_DESC, '', ''):
version = weechat.info_get('version_number', '') or 0
weechat.hook_command(SCRIPT_NAME, SCRIPT_DESC, '[save] || [list]',
' save: force to save command history\n'
' list: list local buffer variable(s)\n'
'\n'
'If you \"/quit\" WeeChat, the script will automatically save the command history to a file.\n'
'You can also force the script to save command history, when you close a buffer with /buffer close.\n'
'If you restart WeeChat, the command history will be restored, when buffer opens again.\n'
'To save and restore \"global\" command history, use option \"save_global\".\n'
'\n'
'The command history of a buffer will be saved \"only\", if the the local variable \"save_history\" is set.\n'
'You will need script \"buffer_autoset.py\" to make a local variabe persistent (see examples, below)!!\n'
'\n'
'You can use option \"save_buffer\ to save command history for *all* buffers, localvar will be ignored using\n'
'this option.\n'
'You can use following values for local variable:\n'
' command: save commands only\n'
' text: save text only (text sent to a channel buffer)\n'
' all: save commands and text\n'
'\n'
'Examples:\n'
' save the command history manually (for example with /cron script or with an /trigger):\n'
' /' + SCRIPT_NAME + ' save\n'
' save and restore command history for buffer #weechat on freenode (text only):\n'
' /buffer_autoset add irc.freenode.#weechat localvar_set_save_history text\n'
' save and restore command history for weechat core buffer (commands only):\n'
' /buffer_autoset add core.weechat localvar_set_save_history command\n',
'save %-'
'|| list %-',
'histman_cmd_cb', '')
if int(version) >= 0x00040000:
if weechat.buffer_get_string(weechat.buffer_search_main(),'localvar_histman') == 'on':
init_options()
create_hooks()
weechat.prnt('','%s%s: do not start this script two times. command history was already restored, during this session!' % (weechat.prefix('error'),SCRIPT_NAME))
else:
init_options()
# create dir, if not exist
config_create_dir()
# look for global_history
if OPTIONS['save_global'].lower() != 'off':
read_history(filename_global_history,'')
# core buffer is already open on script startup. Check manually!
filename = get_filename_with_path('core.weechat')
read_history('core.weechat',weechat.buffer_search_main())
create_hooks()
# set localvar, to start script only once!
weechat.buffer_set(weechat.buffer_search_main(), 'localvar_set_histman', 'on')
else:
weechat.prnt('','%s%s: needs version 0.4.0 or higher' % (weechat.prefix('error'),SCRIPT_NAME))
weechat.command('','/wait 1ms /python unload %s' % SCRIPT_NAME)
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