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
|
use std::{
error::Error,
fs::{self, File},
io::{self},
path::Path,
process::ExitCode,
};
use clap::Parser;
use nom_exif::{ExifIter, MediaParser, MediaSource, TrackInfo};
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt, Registry};
#[derive(Parser, Debug)]
#[command(author, version, about, long_about = None)]
struct Cli {
file: String,
#[arg(short, long)]
json: bool,
#[arg(long)]
debug: bool,
}
#[cfg(feature = "json_dump")]
const FEATURE_JSON_DUMP_ON: bool = true;
#[cfg(not(feature = "json_dump"))]
const FEATURE_JSON_DUMP_ON: bool = false;
fn main() -> ExitCode {
let cli = Cli::parse();
tracing_run(&cli)
}
#[tracing::instrument]
fn tracing_run(cli: &Cli) -> ExitCode {
if cli.debug {
init_tracing().expect("init tracing failed");
}
if let Err(err) = run(cli) {
tracing::error!(?err);
eprintln!("{err}");
return ExitCode::FAILURE;
}
ExitCode::SUCCESS
}
fn run(cli: &Cli) -> Result<(), Box<dyn Error>> {
if cli.json && !FEATURE_JSON_DUMP_ON {
let msg = "-j/--json option requires the feature `json_dump`.";
eprintln!("{msg}");
return Err(msg.into());
}
let mut parser = MediaParser::new();
let path = Path::new(&cli.file);
if path.is_file() {
let _ = parse_file(&mut parser, path, cli.json);
} else if path.is_dir() {
parse_dir(path, parser, cli)?;
}
Ok(())
}
fn parse_dir(path: &Path, mut parser: MediaParser, cli: &Cli) -> Result<(), Box<dyn Error>> {
let mut first = true;
for entry in fs::read_dir(path)? {
if first {
first = false;
} else {
println!();
}
match entry {
Ok(entry) => {
let Ok(ft) = entry.file_type() else {
continue;
};
if !ft.is_file() {
continue;
}
println!("File: {:?}", entry.path().as_os_str());
println!("------------------------------------------------");
let _ = parse_file(&mut parser, entry.path(), cli.json);
}
Err(e) => {
eprintln!("Read dir entry failed: {e}");
continue;
}
}
}
Ok(())
}
fn parse_file<P: AsRef<Path>>(
parser: &mut MediaParser,
path: P,
json: bool,
) -> Result<(), nom_exif::Error> {
let ms = MediaSource::file_path(path).inspect_err(handle_parsing_error)?;
let values = if ms.has_exif() {
let iter: ExifIter = parser.parse(ms).inspect_err(handle_parsing_error)?;
iter.into_iter()
.filter_map(|mut x| {
let res = x.take_result();
match res {
Ok(v) => Some((
x.tag()
.map(|x| x.to_string())
.unwrap_or_else(|| format!("Unknown(0x{:04x})", x.tag_code())),
v,
)),
Err(e) => {
tracing::warn!(?e);
None
}
}
})
.collect::<Vec<_>>()
} else {
let info: TrackInfo = parser.parse(ms)?;
info.into_iter()
.map(|x| (x.0.to_string(), x.1))
.collect::<Vec<_>>()
};
if json {
#[cfg(feature = "json_dump")]
use std::collections::HashMap;
#[cfg(feature = "json_dump")]
match serde_json::to_string_pretty(
&values
.into_iter()
.map(|x| (x.0.to_string(), x.1))
.collect::<HashMap<_, _>>(),
) {
Ok(s) => {
println!("{}", s);
}
Err(e) => eprintln!("Error: {e}"),
}
} else {
values.iter().for_each(|x| {
println!("{:<32}=> {}", x.0, x.1);
});
};
Ok(())
}
fn handle_parsing_error(e: &nom_exif::Error) {
match e {
nom_exif::Error::UnrecognizedFileFormat => {
eprintln!("Unrecognized file format, consider filing a bug @ https://github.com/mindeng/nom-exif.");
}
nom_exif::Error::ParseFailed(_) | nom_exif::Error::IOError(_) => {
eprintln!("Error: {e}");
}
}
}
fn init_tracing() -> io::Result<()> {
let stdout_log = tracing_subscriber::fmt::layer().pretty();
let subscriber = Registry::default().with(stdout_log);
let file = File::create("debug.log")?;
let debug_log = tracing_subscriber::fmt::layer()
.with_ansi(false)
.with_writer(file);
let subscriber = subscriber.with(debug_log);
subscriber.init();
Ok(())
}
|
