aboutsummaryrefslogtreecommitdiff
path: root/src/main.rs
blob: 9ed06469b5e76f1a3ddadcfd3e18fbe52ad20615 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
// Copyright 2015 Till Höppner
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#![feature(libc, plugin)]
#![plugin(regex_macros)]

extern crate ilc;
extern crate chrono;
extern crate docopt;
extern crate rustc_serialize;
extern crate libc;
extern crate regex;
#[macro_use]
extern crate log;
extern crate env_logger;
extern crate glob;
extern crate blist;

use std::process;
use std::io::{ self, Read, BufRead, BufReader, Write, BufWriter };
use std::fs::File;
use std::error::Error;
use std::str::FromStr;
use std::collections::HashMap;

use docopt::Docopt;

use chrono::offset::fixed::FixedOffset;
use chrono::naive::date::NaiveDate;

use glob::glob;

use ilc::context::Context;
use ilc::format::{ self, Encode, Decode, DecodeBox };
use ilc::event::{ Event, Type, NoTimeHash };

use ageset::AgeSet;

mod chain;
mod ageset;

static USAGE: &'static str = r#"
d8b   888
Y8P   888
      888
888   888    .d8888b
888   888   d88P"
888   888   888
888   888   Y88b.
888   888    "Y8888P

A converter and statistics utility for IRC log files.

Usage:
  ilc parse [options] [-i FILE...]
  ilc convert [options] [-i FILE...]
  ilc freq [options] [-i FILE...]
  ilc sort [options] [-i FILE...]
  ilc dedup [options] [-i FILE...]
  ilc (-h | --help | -v | --version)

Options:
  -h --help         Show this screen.
  -v --version      Show the version (duh).
  --date DATE       Override the date for this log. ISO 8601, YYYY-MM-DD.
  --tz SECONDS      UTC offset in the direction of the western hemisphere.
  --channel CH      Set a channel for the given log.
  --inf INF         Set the input format.
  --outf OUTF       Set the output format.
  --in -i IN        Give an input file, instead of stdin.
  --out -o OUT      Give an output file, instead of stdout.
"#;

#[derive(RustcDecodable, Debug)]
struct Args {
    cmd_parse: bool,
    cmd_convert: bool,
    cmd_freq: bool,
    cmd_sort: bool,
    cmd_dedup: bool,
    arg_file: Vec<String>,
    flag_in: Vec<String>,
    flag_out: Option<String>,
    flag_inf: Option<String>,
    flag_outf: Option<String>,
    flag_help: bool,
    flag_version: bool,
    flag_date: Option<String>,
    flag_tz: Option<String>,
    flag_channel: Option<String>
}

fn error(e: Box<Error>) -> ! {
    let _ = writeln!(&mut io::stderr(), "Error: {}", e);
    let mut e = e.cause();
    while let Some(err) = e {
        let _ = writeln!(&mut io::stderr(), "\t{}", err);
        e = err.cause();
    }
    process::exit(1)
}

fn die(s: &str) -> ! {
    let _ = writeln!(&mut io::stderr(), "Aborting: {}", s);
    process::exit(1)
}

fn force_decoder<'a>(s: Option<String>) -> Box<DecodeBox<'a, &'a mut BufRead>> {
    let inf = match s {
        Some(s) => s,
        None => die("You didn't specify the input format")
    };
    match format::decoder(&inf) {
        Some(d) => d,
        None => die(&format!("The format `{}` is unknown to me", inf))
    }
}

fn force_encoder<'a>(s: Option<String>) -> Box<Encode<'a, &'a mut Write>> {
    let outf = match s {
        Some(s) => s,
        None => die("You didn't specify the output format")
    };
    match format::encoder(&outf) {
        Some(e) => e,
        None => die(&format!("The format `{}` is unknown to me", outf))
    }
}

fn main() {
    env_logger::init().unwrap();
    let args: Args = Docopt::new(USAGE)
               .and_then(|d| d.decode())
               .unwrap_or_else(|e| e.exit());
    if args.flag_help {
        println!("{}", USAGE);
        process::exit(1)
    }

    let context = Context {
        timezone: FixedOffset::west(args.flag_tz.and_then(|s| s.parse().ok()).unwrap_or(0)),
        override_date: args.flag_date.and_then(|d| NaiveDate::from_str(&d).ok()),
        channel: args.flag_channel.clone()
    };

    let mut input: Box<BufRead> = if args.flag_in.len() > 0 {
        let input_files = args.flag_in.iter()
            .flat_map(|p| {
                match glob(p) {
                    Ok(paths) => paths,
                    Err(e) => die(&format!("{}", e.msg))
                }
            }).filter_map(Result::ok).map(|p| File::open(p).unwrap()).collect();
        Box::new(BufReader::new(chain::Chain::new(input_files)))
    } else {
        Box::new(BufReader::new(io::stdin()))
    };

    let mut output: Box<Write> = if let Some(out) = args.flag_out {
        match File::create(out) {
            Ok(f) => Box::new(BufWriter::new(f)),
            Err(e) => error(Box::new(e))
        }
    } else {
        Box::new(BufWriter::new(io::stdout()))
    };

    if args.cmd_parse {
        let mut decoder = force_decoder(args.flag_inf);
        let encoder = force_encoder(args.flag_outf);
        for e in decoder.decode_box(&context, &mut input) {
            info!("Parsed: {:?}", e);
            let _ = encoder.encode(&context, &mut output, &e.unwrap());
        }
    } else if args.cmd_convert {
        let mut decoder = force_decoder(args.flag_inf);
        let encoder = force_encoder(args.flag_outf);
        for e in decoder.decode_box(&context, &mut input) {
            match e {
                Ok(e) => { let _ = encoder.encode(&context, &mut output, &e); },
                Err(e) => error(Box::new(e))
            }
        }
    } else if args.cmd_freq {
        struct Person {
            lines: u32,
            words: u32
        }

        fn words(s: &str) -> u32 {
            s.split_whitespace().filter(|s| !s.is_empty()).count() as u32
        }

        fn strip_nick_prefix(s: &str) -> &str {
            if s.is_empty() { return s }
            match s.as_bytes()[0] {
                b'~' | b'&' | b'@' | b'%' | b'+' => &s[1..],
                _ => s
            }
        }

        let mut stats: HashMap<String, Person> = HashMap::new();

        let mut decoder = force_decoder(args.flag_inf);
        for e in decoder.decode_box(&context, &mut input) {
            let m = match e {
                Ok(m) => m,
                Err(err) => error(Box::new(err))
            };

            match m {
                Event { ty: Type::Msg { ref from, ref content, .. }, .. } => {
                    let nick = strip_nick_prefix(from);
                    if stats.contains_key(nick) {
                        let p: &mut Person = stats.get_mut(nick).unwrap();
                        p.lines += 1;
                        p.words += words(content);
                    } else {
                        stats.insert(nick.to_owned(), Person {
                            lines: 1,
                            words: words(content)
                        });
                    }
                },
                _ => ()
            }
        }

        let mut stats: Vec<(String, Person)> = stats.into_iter().collect();
        stats.sort_by(|&(_, ref a), &(_, ref b)| b.words.cmp(&a.words));

        for &(ref name, ref stat) in stats.iter().take(10) {
            let _ = write!(&mut output, "{}:\n\tLines: {}\n\tWords: {}\n", name, stat.lines, stat.words);
        }
    } else if args.cmd_sort {
        let mut decoder = force_decoder(args.flag_inf);
        let encoder = force_encoder(args.flag_outf);
        let mut events: Vec<Event> = decoder.decode_box(&context, &mut input)
            .flat_map(Result::ok)
            .collect();

        events.sort_by(|a, b| a.time.cmp(&b.time));
        for e in events {
            let _ = encoder.encode(&context, &mut output, &e);
        }
    } else if args.cmd_dedup {
        let mut decoder = force_decoder(args.flag_inf);
        let encoder = force_encoder(args.flag_outf);
        let mut backlog = AgeSet::new();

        for e in decoder.decode_box(&context, &mut input) {
            if let Ok(e) = e {
                let newest_event = e.clone();
                backlog.prune(move |a: &NoTimeHash| {
                    let age = newest_event.time.as_timestamp() - a.0.time.as_timestamp();
                    age > 5000
                });
                // write `e` if it's a new event
                let n = NoTimeHash(e);
                if !backlog.contains(&n) {
                    let _ = encoder.encode(&context, &mut output, &n.0);
                    backlog.push(n);
                }
            }
        }
    }
}