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
|
// Copyright (C) 2020-2025 Michael herstine <sp1ff@pobox.com>
//
// This file is part of mpdpopm.
//
// mpdpopm 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.
//
// mpdpopm 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 mpdpopm. If not,
// see <http://www.gnu.org/licenses/>.
//! # mpdpopm
//!
//! Maintain ratings & playcounts for your mpd server.
//!
//! # Introduction
//!
//! This is a companion daemon for [mpd](https://www.musicpd.org/) that maintains play counts &
//! ratings. Similar to [mpdfav](https://github.com/vincent-petithory/mpdfav), but written in Rust
//! (which I prefer to Go), it will allow you to maintain that information in your tags, as well as
//! the sticker database, by invoking external commands to keep your tags up-to-date (something
//! along the lines of [mpdcron](https://alip.github.io/mpdcron)).
//!
//! # Commands
//!
//! I'm currently sending all commands over one (configurable) channel.
//!
#![recursion_limit = "512"] // for the `select!' macro
pub mod clients;
pub mod config;
pub mod filters_ast;
pub mod messages;
pub mod playcounts;
pub mod storage;
pub mod vars;
#[rustfmt::skip]
#[allow(clippy::extra_unused_lifetimes)]
#[allow(clippy::needless_lifetimes)]
#[allow(clippy::let_unit_value)]
#[allow(clippy::just_underscores_and_digits)]
pub mod filters {
include!(concat!(env!("OUT_DIR"), "/src/filters.rs"));
}
use crate::{
clients::{Client, IdleClient, IdleSubSystem},
config::{Config, Connection},
filters_ast::FilterStickerNames,
messages::MessageProcessor,
playcounts::PlayState,
};
use anyhow::{Context, Error};
use futures::{future::FutureExt, pin_mut, select};
use tokio::{
signal,
signal::unix::{SignalKind, signal},
time::{Duration, sleep},
};
use tracing::{debug, error, info};
/// Core `mppopmd' logic
pub async fn mpdpopm(cfg: Config) -> std::result::Result<(), Error> {
info!("mpdpopm {} beginning.", vars::VERSION);
let filter_stickers = FilterStickerNames::new();
let mut client =
match cfg.conn {
Connection::Local { ref path } => Client::open(path)
.await
.with_context(|| format!("Failed to open socket at `{}`", path.display()))?,
Connection::TCP { ref host, port } => Client::connect(format!("{}:{}", host, port))
.await
.with_context(|| format!("Failed to connect to client at `{}:{}`", host, port))?,
};
let mut state = PlayState::new(&mut client, cfg.played_thresh)
.await
.context("Failed to construct PlayState")?;
let mut idle_client = match cfg.conn {
Connection::Local { ref path } => IdleClient::open(path)
.await
.context("Failed to open idle client")?,
Connection::TCP { ref host, port } => IdleClient::connect(format!("{}:{}", host, port))
.await
.context("Failed to connect to TCP idle client")?,
};
idle_client
.subscribe(&cfg.commands_chan)
.await
.context("Failed to subscribe to idle_client")?;
let mut hup = signal(SignalKind::hangup()).unwrap();
let mut kill = signal(SignalKind::terminate()).unwrap();
let ctrl_c = signal::ctrl_c().fuse();
let sighup = hup.recv().fuse();
let sigkill = kill.recv().fuse();
let tick = sleep(Duration::from_millis(cfg.poll_interval_ms)).fuse();
pin_mut!(ctrl_c, sighup, sigkill, tick);
let mproc = MessageProcessor::new();
let mut done = false;
while !done {
debug!("selecting...");
let mut msg_check_needed = false;
{
// `idle_client' mutably borrowed here
let mut idle = Box::pin(idle_client.idle().fuse());
loop {
select! {
_ = ctrl_c => {
info!("got ctrl-C");
done = true;
break;
},
_ = sighup => {
info!("got SIGHUP");
done = true;
break;
},
_ = sigkill => {
info!("got SIGKILL");
done = true;
break;
},
_ = tick => {
tick.set(sleep(Duration::from_millis(cfg.poll_interval_ms)).fuse());
state.update(&mut client)
.await
.context("PlayState update failed")?
},
// next = cmds.next() => match next {
// Some(out) => {
// debug!("output status is {:#?}", out.out);
// match out.upd {
// Some(uri) => {
// debug!("{} needs to be updated", uri);
// client.update(&uri).await.map_err(|err| Error::Client {
// source: err,
// back: Backtrace::new(),
// })?;
// },
// None => debug!("No database update needed"),
// }
// },
// None => {
// debug!("No more commands to process.");
// }
// },
res = idle => match res {
Ok(subsys) => {
debug!("subsystem {} changed", subsys);
if subsys == IdleSubSystem::Player {
state.update(&mut client)
.await
.context("PlayState update failed")?
} else if subsys == IdleSubSystem::Message {
msg_check_needed = true;
}
break;
},
Err(err) => {
debug!("error {err:#?} on idle");
done = true;
break;
}
}
}
}
}
if msg_check_needed {
// Check for any messages that have come in; if there's an error there's not a lot we
// can do about it (suppose some client fat-fingers a command name, e.g.)-- just log it
// & move on.
if let Err(err) = mproc
.check_messages(
&mut client,
&mut idle_client,
state.last_status(),
&cfg.commands_chan,
&filter_stickers,
)
.await
{
error!("Error while processing messages: {err:#?}");
}
}
}
info!("mpdpopm exiting.");
Ok(())
}
|
