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|
use std::str::FromStr;
use syntect::highlighting::{Color, Style, StyleModifier, Theme, ThemeSet};
use syntect::parsing::SyntaxSet;
use crate::cli;
use crate::style;
pub struct Config<'a> {
pub theme: &'a Theme,
pub theme_name: &'a str,
pub minus_style_modifier: StyleModifier,
pub minus_emph_style_modifier: StyleModifier,
pub plus_style_modifier: StyleModifier,
pub plus_emph_style_modifier: StyleModifier,
pub syntax_set: &'a SyntaxSet,
pub terminal_width: usize,
pub width: Option<usize>,
pub pager: &'a str,
pub opt: &'a cli::Opt,
pub no_style: Style,
pub max_buffered_lines: usize,
}
pub fn get_config<'a>(
opt: &'a cli::Opt,
syntax_set: &'a SyntaxSet,
theme_set: &'a ThemeSet,
terminal_width: usize,
width: Option<usize>,
) -> Config<'a> {
let theme_name = match opt.theme {
Some(ref theme) => theme,
None => {
if opt.light {
style::DEFAULT_LIGHT_THEME
} else {
style::DEFAULT_DARK_THEME
}
}
};
let is_light_theme = style::LIGHT_THEMES.contains(&theme_name);
let minus_style_modifier = StyleModifier {
background: Some(color_from_arg(
&opt.minus_color,
is_light_theme,
style::LIGHT_THEME_MINUS_COLOR,
style::DARK_THEME_MINUS_COLOR,
)),
foreground: if opt.highlight_removed {
None
} else {
Some(style::NO_COLOR)
},
font_style: None,
};
let minus_emph_style_modifier = StyleModifier {
background: Some(color_from_arg(
&opt.minus_emph_color,
is_light_theme,
style::LIGHT_THEME_MINUS_EMPH_COLOR,
style::DARK_THEME_MINUS_EMPH_COLOR,
)),
foreground: if opt.highlight_removed {
None
} else {
Some(style::NO_COLOR)
},
font_style: None,
};
let plus_style_modifier = StyleModifier {
background: Some(color_from_arg(
&opt.plus_color,
is_light_theme,
style::LIGHT_THEME_PLUS_COLOR,
style::DARK_THEME_PLUS_COLOR,
)),
foreground: None,
font_style: None,
};
let plus_emph_style_modifier = StyleModifier {
background: Some(color_from_arg(
&opt.plus_emph_color,
is_light_theme,
style::LIGHT_THEME_PLUS_EMPH_COLOR,
style::DARK_THEME_PLUS_EMPH_COLOR,
)),
foreground: None,
font_style: None,
};
Config {
theme: &theme_set.themes[theme_name],
theme_name,
minus_style_modifier,
minus_emph_style_modifier,
plus_style_modifier,
plus_emph_style_modifier,
terminal_width,
width,
syntax_set,
pager: "less",
opt,
no_style: style::get_no_style(),
max_buffered_lines: 32,
}
}
fn color_from_arg(
arg: &Option<String>,
is_light_theme: bool,
light_theme_default: Color,
dark_theme_default: Color,
) -> Color {
arg.as_ref()
.and_then(|s| Color::from_str(s).ok())
.unwrap_or_else(|| {
if is_light_theme {
light_theme_default
} else {
dark_theme_default
}
})
}
|
