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
use clap::{ArgEnum, Args};
use env_logger::fmt::Formatter;
use log::{Level, Record};
use owo_colors::{OwoColorize, Style};
use std::io::Write;
use supports_color::Stream;
#[derive(Copy, Clone, Debug, Args)]
#[must_use]
pub(crate) struct OutputOpts {
#[clap(
long,
arg_enum,
default_value_t,
hide_possible_values = true,
global = true,
value_name = "WHEN"
)]
pub(crate) color: Color,
}
impl OutputOpts {
pub(crate) fn init(self) -> OutputContext {
let OutputOpts { color } = self;
color.init();
OutputContext { color }
}
}
#[derive(Copy, Clone, Debug)]
#[must_use]
pub(crate) struct OutputContext {
pub(crate) color: Color,
}
#[derive(Copy, Clone, Debug, PartialEq, ArgEnum)]
#[must_use]
pub enum Color {
Auto,
Always,
Never,
}
impl Default for Color {
fn default() -> Self {
Color::Auto
}
}
impl Color {
fn init(self) {
match self {
Color::Auto => owo_colors::unset_override(),
Color::Always => owo_colors::set_override(true),
Color::Never => owo_colors::set_override(false),
}
env_logger::Builder::from_env("NEXTEST_LOG")
.format(format_fn)
.init();
}
pub(crate) fn should_colorize(self, stream: Stream) -> bool {
match self {
Color::Auto => supports_color::on_cached(stream).is_some(),
Color::Always => true,
Color::Never => false,
}
}
pub(crate) fn to_arg(self) -> &'static str {
match self {
Color::Auto => "--color=auto",
Color::Always => "--color=always",
Color::Never => "--color=never",
}
}
}
impl std::str::FromStr for Color {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"auto" => Ok(Color::Auto),
"always" => Ok(Color::Always),
"never" => Ok(Color::Never),
s => Err(format!(
"{} is not a valid option, expected `auto`, `always` or `never`",
s
)),
}
}
}
fn format_fn(f: &mut Formatter, record: &Record<'_>) -> std::io::Result<()> {
if record.target() == "cargo_nextest::no_heading" {
writeln!(f, "{}", record.args())?;
return Ok(());
}
match record.level() {
Level::Error => writeln!(
f,
"{}: {}",
"error".if_supports_color(Stream::Stderr, |s| s.style(Style::new().bold().red())),
record.args()
),
Level::Warn => writeln!(
f,
"{}: {}",
"warning".if_supports_color(Stream::Stderr, |s| s.style(Style::new().bold().yellow())),
record.args()
),
Level::Info => writeln!(
f,
"{}: {}",
"info".if_supports_color(Stream::Stderr, |s| s.bold()),
record.args()
),
Level::Debug => writeln!(
f,
"{}: {}",
"debug".if_supports_color(Stream::Stderr, |s| s.bold()),
record.args()
),
_other => Ok(()),
}
}