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lognestmonster / 0faeedc

A general-purpose single-header C logging library and parser for event-based logs. (Incomplete)

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9001 Sep 2019 21:000faeedcupdate log reading/parsingJosh Stockin1181N

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1# lognestmonster Copyright (c) 2019 Joshua 'joshuas3' Stockin
2# <https://github.com/JoshuaS3/lognestmonster/>.
3
4
5# This file is part of lognestmonster.
6
7# lognestmonster is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11
12# lognestmonster is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16
17# You should have received a copy of the GNU General Public License
18# along with lognestmonster. If not, see <https://www.gnu.org/licenses/>.
19
20import os
21import sys
22from utils import *
23from format import *
24from text import *
25from args import *
26from parseargs import *
27from read import *
28
29class Parser:
30 screen = None
31 clines = None
32 ccols = None
33 lines = None
34 def __init__(self):
35 self.screen = curses_window()
36 self.get_size()
37
38 def get_size(self):
39 size = term_size()
40 self.clines = size[0]
41 self.ccols = size[1]
42
43 def redraw(self):
44 self.get_size()
45 curses_clear(self.screen)
46 l = 0
47 for line in self.lines:
48 if l == self.clines: break
49 self.screen.move(l, 0)
50 s = ""
51 for string in line:
52 # ("content string", "attributes string")
53 content = string[0]
54 s += content
55
56 self.screen.attrset(0)
57
58 try:
59 attr = string[1]
60 except:
61 attr = ""
62
63 if "RESET" in attr: # set curses attributes based on attributes string
64 self.screen.attron(curses.color_pair(0))
65 else:
66 if "BLACK" in attr:
67 self.screen.attron(curses.color_pair(1))
68 if "BLUE" in attr:
69 self.screen.attron(curses.color_pair(2))
70 if "CYAN" in attr:
71 self.screen.attron(curses.color_pair(3))
72 if "GREEN" in attr:
73 self.screen.attron(curses.color_pair(4))
74 if "MAGENTA" in attr:
75 self.screen.attron(curses.color_pair(5))
76 if "RED" in attr:
77 self.screen.attron(curses.color_pair(6))
78 if "WHITE" in attr:
79 self.screen.attron(curses.color_pair(7))
80 if "YELLOW" in attr:
81 self.screen.attron(curses.color_pair(8))
82 if "BOLD" in attr:
83 self.screen.attron(curses.A_BOLD)
84 if "STANDOUT" in attr:
85 self.screen.attron(curses.A_STANDOUT)
86 if "UNDERLINE" in attr:
87 self.screen.attron(curses.A_UNDERLINE)
88
89 self.screen.addstr(content[:self.ccols - len(s)])
90 self.screen.attrset(0)
91 l += 1
92 curses_refresh(self.screen)
93
94 def get_input(self):
95 input = getch()
96 if input == UP: input = "up"
97 elif input == DOWN: input = "down"
98 elif input == LEFT: input = "left"
99 elif input == RIGHT: input = "right"
100 elif input == CTRLC: input = "exit"
101 else: input = str(input).lower()
102 return input
103
104 folder_name = "log_1565561768719"
105 divider = " | "
106 title = TITLE
107
108 def loop(self):
109 def tab(string, count=1):
110 return " "*count + string
111 input = None
112 try:
113 while True:
114 self.get_size()
115 screen_width = self.ccols
116
117 self.lines = [
118 [(self.title + " - ", "RESET"), (self.folder_name, "BOLD YELLOW")],
119 "Size: 235 bytes | Timestamp: 1565561768719",
120 "7 Statements | 2 Events | 0 Unsaved Data Trees",
121 pad(" STATEMENT 5 ", ":", screen_width),
122 "",
123 "[[LOG START]]",
124 "v 7 ITEMS",
125 tab("1565561768752 - INFO - INIT - HELLO"),
126 tab("1565561768752 - INFO - INIT - HELLO"),
127 tab("v 4 ITEMS"),
128 tab("1565561768752 - INFO - INIT - HELLO", 2),
129 tab("1565561768752 - INFO - INIT - HELLO", 2),
130 "",
131 [(tab("1565561768752 - INFO - INIT - HELLO", 2), "BOLD")],
132 "",
133 tab("1565561768752 - INFO - INIT - HELLO", 2),
134 tab("1565561768752 - INFO - INIT - HELLO"),
135 "",
136 str(input),
137 "[[LOG END]",
138 "",
139 "",
140 "",
141 pad(margin(CONTROLS_MESSAGE), ":", screen_width)
142 ]
143 self.redraw()
144
145 input = self.get_input()
146
147 if input == "exit" or input == "q": # exit program on Ctrl + C or `q`
148 break;
149 finally:
150 curses_reset()
151
152def main():
153 options = parseargs(sys.argv[1:])
154
155 display_help = "help" in options
156 display_version = "version" in options
157 is_status = "status" in options
158
159 screen_size = term_size()
160 clines = screen_size[0]
161 ccols = screen_size[1] - 2
162
163 if display_help:
164 output(VERSION_SHORT)
165
166 usage = []
167 line = "usage: lognestmonster "
168 x = len(line)
169 width = ccols - x
170 wrapped = wrap(USAGE_MESSAGE, width, "&")
171 for l in wrapped:
172 line += l
173 usage.append(line)
174 line = (" "*x)
175 output_lines(usage)
176
177 output()
178
179 for paragraph in COMMAND_INFO.split("\n\n"):
180 output_lines(wrap(paragraph, ccols))
181
182 output()
183
184 args = []
185
186 div1 = ccols/3
187 div2 = ccols/3*2
188 for arg in ARGUMENT_OPTIONS:
189 arg_lines = []
190 indicators = wrap(", ".join(ARGUMENT_OPTIONS[arg]["indicators"]), div1)
191 description = wrap(ARGUMENT_OPTIONS[arg]["description"], div2)
192 l1 = indicators[0]
193 z = 0
194 for line in description:
195 try:
196 l1 = indicators[z]
197 except:
198 l1 = ""
199 z += 1
200 l = columnize([(div1, l1), (div2, line)], ccols)
201 arg_lines.append(l)
202 args += arg_lines
203
204 output_lines(args)
205 output()
206 output(DESCRIPTION_PYTHON_VERSION)
207 return
208 elif display_version:
209 output(VERSION_MESSAGE)
210 return
211 elif len(sys.argv) == 1 or type(options) is str: # argument error or no args passed
212 exitcode = 0
213 output(VERSION_SHORT)
214 if type(options) is str: # print argument error is exists
215 output(options)
216 exitcode = 1
217 output(HELP_MESSAGE)
218 exit(exitcode)
219
220 positional = sys.argv[-1]
221 if positional is not "-" and os.path.isfile(positional) is not True and os.path.isdir(positional) is not True:
222 output(VERSION_SHORT)
223 output(TEXT_RED + "error:" + RESET + " file unknown '" + positional + "'")
224 output(HELP_MESSAGE)
225 exit(1)
226
227 if positional is "-": positional = "stdin"
228
229 output("args: " + str(options))
230 output("file: " + positional)
231
232 if positional is "stdin":
233 fd = sys.stdin
234 else:
235 try:
236 fd = open(positional, "rb")
237 except:
238 output(TEXT_RED + "error:" + RESET + " unable to open file")
239 exit(1)
240
241 if not is_status:
242 p = Parser()
243 p.folder_name = positional
244 p.loop()
245 else:
246 r = Reader(fd)
247
248 fd.close()
249
250
251if __name__ == "__main__":
252 main()
253