lsd 1.2.0

An ls command with a lot of pretty colors and some other stuff.
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

use crate::color::{ColoredString, Colors, Elem};
use crate::flags::Flags;
use std::fs::read_link;
use std::path::Path;

#[derive(Clone, Debug)]
pub struct SymLink {
    target: Option<String>,
    valid: bool,
}

impl From<&Path> for SymLink {
    fn from(path: &Path) -> Self {
        if let Ok(target) = read_link(path) {
            if target.is_absolute() || path.parent().is_none() {
                return Self {
                    valid: target.exists(),
                    target: Some(
                        target
                            .to_str()
                            .expect("failed to convert symlink to str")
                            .to_string(),
                    ),
                };
            }

            return Self {
                target: Some(
                    target
                        .to_str()
                        .expect("failed to convert symlink to str")
                        .to_string(),
                ),
                valid: path.parent().unwrap().join(target).exists(),
            };
        }

        Self {
            target: None,
            valid: false,
        }
    }
}

impl SymLink {
    pub fn symlink_string(&self) -> Option<String> {
        self.target.as_ref().map(|target| target.to_string())
    }

    pub fn render(&self, colors: &Colors, flag: &Flags) -> ColoredString {
        if let Some(target_string) = self.symlink_string() {
            let elem = if self.valid {
                &Elem::SymLink
            } else {
                &Elem::MissingSymLinkTarget
            };

            let strings: &[ColoredString] = &[
                ColoredString::new(Colors::default_style(), format!(" {} ", flag.symlink_arrow)), // ⇒ \u{21d2}
                colors.colorize(target_string, elem),
            ];

            let res = strings
                .iter()
                .map(|s| s.to_string())
                .collect::<Vec<String>>()
                .join("");
            ColoredString::new(Colors::default_style(), res)
        } else {
            ColoredString::new(Colors::default_style(), "".into())
        }
    }
}

#[cfg(test)]
mod tests {
    use clap::Parser;

    use super::SymLink;

    use crate::app::Cli;
    use crate::color::{Colors, ThemeOption};
    use crate::config_file::Config;
    use crate::flags::Flags;

    #[test]
    fn test_symlink_render_default_valid_target_nocolor() {
        let link = SymLink {
            target: Some("/target".to_string()),
            valid: true,
        };
        let argv = ["lsd"];
        let cli = Cli::try_parse_from(argv).unwrap();
        assert_eq!(
            format!("{}", " ⇒ /target"),
            link.render(
                &Colors::new(ThemeOption::NoColor),
                &Flags::configure_from(&cli, &Config::with_none()).unwrap()
            )
            .to_string()
        );
    }

    #[test]
    fn test_symlink_render_default_invalid_target_nocolor() {
        let link = SymLink {
            target: Some("/target".to_string()),
            valid: false,
        };
        let argv = ["lsd"];
        let cli = Cli::try_parse_from(argv).unwrap();
        assert_eq!(
            format!("{}", " ⇒ /target"),
            link.render(
                &Colors::new(ThemeOption::NoColor),
                &Flags::configure_from(&cli, &Config::with_none()).unwrap()
            )
            .to_string()
        );
    }

    #[test]
    fn test_symlink_render_default_invalid_target_withcolor() {
        let link = SymLink {
            target: Some("/target".to_string()),
            valid: false,
        };
        let argv = ["lsd"];
        let cli = Cli::try_parse_from(argv).unwrap();
        assert_eq!(
            format!("{}", " ⇒ \u{1b}[38;5;124m/target\u{1b}[39m"),
            link.render(
                &Colors::new(ThemeOption::NoLscolors),
                &Flags::configure_from(&cli, &Config::with_none()).unwrap()
            )
            .to_string()
        );
    }
}