shellshot 0.5.0

Transform your command-line output into clean, shareable images with a single command.
Documentation 
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

use image::Rgba;
use plist::from_bytes;
use serde::Deserialize;
use thiserror::Error;

use crate::theme::{Theme, build_256_palette};

#[derive(Debug, Error)]
pub enum ITermError {
    #[error("Failed to read file: {0}")]
    Io(#[from] std::io::Error),
    #[error("PLIST parsing failed: {0}")]
    PlistError(#[from] plist::Error),
}

#[derive(Deserialize, Debug)]
struct Color {
    #[serde(rename = "Red Component")]
    red: f32,
    #[serde(rename = "Green Component")]
    green: f32,
    #[serde(rename = "Blue Component")]
    blue: f32,
}

impl From<Color> for Rgba<u8> {
    fn from(val: Color) -> Self {
        Self([
            (val.red.clamp(0.0, 1.0) * 255.0).round() as u8,
            (val.green.clamp(0.0, 1.0) * 255.0).round() as u8,
            (val.blue.clamp(0.0, 1.0) * 255.0).round() as u8,
            255,
        ])
    }
}

#[derive(Deserialize, Debug)]
#[expect(dead_code)]
pub struct ITerm2 {
    #[serde(rename = "Ansi 0 Color")]
    ansi_0: Color,
    #[serde(rename = "Ansi 1 Color")]
    ansi_1: Color,
    #[serde(rename = "Ansi 2 Color")]
    ansi_2: Color,
    #[serde(rename = "Ansi 3 Color")]
    ansi_3: Color,
    #[serde(rename = "Ansi 4 Color")]
    ansi_4: Color,
    #[serde(rename = "Ansi 5 Color")]
    ansi_5: Color,
    #[serde(rename = "Ansi 6 Color")]
    ansi_6: Color,
    #[serde(rename = "Ansi 7 Color")]
    ansi_7: Color,
    #[serde(rename = "Ansi 8 Color")]
    ansi_8: Color,
    #[serde(rename = "Ansi 9 Color")]
    ansi_9: Color,
    #[serde(rename = "Ansi 10 Color")]
    ansi_10: Color,
    #[serde(rename = "Ansi 11 Color")]
    ansi_11: Color,
    #[serde(rename = "Ansi 12 Color")]
    ansi_12: Color,
    #[serde(rename = "Ansi 13 Color")]
    ansi_13: Color,
    #[serde(rename = "Ansi 14 Color")]
    ansi_14: Color,
    #[serde(rename = "Ansi 15 Color")]
    ansi_15: Color,
    #[serde(rename = "Background Color")]
    background: Color,
    #[serde(rename = "Bold Color")]
    #[allow(dead_code)]
    bold: Color,
    #[serde(rename = "Cursor Color")]
    cursor: Color,
    #[serde(rename = "Cursor Text Color")]
    cursor_text: Color,
    #[serde(rename = "Foreground Color")]
    foreground: Color,
    #[serde(rename = "Selected Text Color")]
    selected_text: Color,
    #[serde(rename = "Selection Color")]
    selection: Color,
}

impl ITerm2 {
    pub fn load_bytes(bytes: &[u8]) -> Result<Theme, ITermError> {
        let theme: Self = from_bytes(bytes)?;

        let ansi = [
            theme.ansi_0.into(),
            theme.ansi_1.into(),
            theme.ansi_2.into(),
            theme.ansi_3.into(),
            theme.ansi_4.into(),
            theme.ansi_5.into(),
            theme.ansi_6.into(),
            theme.ansi_7.into(),
            theme.ansi_8.into(),
            theme.ansi_9.into(),
            theme.ansi_10.into(),
            theme.ansi_11.into(),
            theme.ansi_12.into(),
            theme.ansi_13.into(),
            theme.ansi_14.into(),
            theme.ansi_15.into(),
        ];

        Ok(Theme {
            palette: build_256_palette(ansi),
            foreground_color: theme.foreground.into(),
            background_color: theme.background.into(),
        })
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    const VALID_PLIST: &[u8] = include_bytes!("../../assets/tests/iterm_test.itermcolors");

    #[test]
    fn test_parse_valid_plist() {
        let theme = ITerm2::load_bytes(VALID_PLIST).expect("Failed to parse valid plist");
        assert_eq!(theme.foreground_color, Rgba([230, 204, 179, 255]));
        assert_eq!(theme.background_color, Rgba([26, 51, 77, 255]));
        assert_eq!(theme.palette.len(), 256);
    }

    #[test]
    fn test_parse_invalid_plist() {
        let invalid_plist = "<plist>not valid</plist>".as_bytes();
        let err = ITerm2::load_bytes(invalid_plist).unwrap_err();
        matches!(err, ITermError::PlistError(_));
    }

    #[test]
    fn test_color_conversion() {
        let color = Color {
            red: 0.5,
            green: 0.25,
            blue: 0.75,
        };
        let rgba: Rgba<u8> = color.into();
        assert_eq!(rgba, Rgba([128, 64, 191, 255]));
    }
}