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|
use super::{Context, Module};
use crate::config::RootModuleConfig;
use crate::configs::shlvl::ShLvlConfig;
use crate::formatter::StringFormatter;
use std::borrow::Cow;
use std::convert::TryInto;
const SHLVL_ENV_VAR: &str = "SHLVL";
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let shlvl = context.get_env(SHLVL_ENV_VAR)?.parse::<i64>().ok()?;
let mut module = context.new_module("shlvl");
let config: ShLvlConfig = ShLvlConfig::try_load(module.config);
// As we default to disabled=true, we have to check here after loading our config module,
// before it was only checking against whatever is in the config starship.toml
if config.disabled || shlvl < config.threshold {
return None;
}
let shlvl_str = &shlvl.to_string();
let repeat_count = if config.repeat {
shlvl.try_into().unwrap_or(1)
} else {
1
};
let symbol = if repeat_count != 1 {
Cow::Owned(config.symbol.repeat(repeat_count))
} else {
Cow::Borrowed(config.symbol)
};
let parsed = StringFormatter::new(config.format).and_then(|formatter| {
formatter
.map_meta(|var, _| match var {
"symbol" => Some(symbol.as_ref()),
_ => None,
})
.map_style(|variable| match variable {
"style" => Some(Ok(config.style)),
_ => None,
})
.map(|variable| match variable {
"shlvl" => Some(Ok(shlvl_str)),
_ => None,
})
.parse(None)
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `shlvl`:\n{}", error);
return None;
}
});
Some(module)
}
#[cfg(test)]
mod tests {
use ansi_term::{Color, Style};
use crate::test::ModuleRenderer;
use super::SHLVL_ENV_VAR;
fn style() -> Style {
// default style
Color::Yellow.bold()
}
#[test]
fn empty_config() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
})
.env(SHLVL_ENV_VAR, "2")
.collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn enabled() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
disabled = false
})
.env(SHLVL_ENV_VAR, "2")
.collect();
let expected = Some(format!("{} ", style().paint("↕️ 2")));
assert_eq!(expected, actual);
}
#[test]
fn no_level() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
disabled = false
})
.collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn enabled_config_level_1() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
disabled = false
})
.env(SHLVL_ENV_VAR, "1")
.collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn lower_threshold() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
threshold = 1
disabled = false
})
.env(SHLVL_ENV_VAR, "1")
.collect();
let expected = Some(format!("{} ", style().paint("↕️ 1")));
assert_eq!(expected, actual);
}
#[test]
fn higher_threshold() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
threshold = 3
disabled = false
})
.env(SHLVL_ENV_VAR, "1")
.collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn custom_style() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
style = "Red Underline"
disabled = false
})
.env(SHLVL_ENV_VAR, "2")
.collect();
let expected = Some(format!("{} ", Color::Red.underline().paint("↕️ 2")));
assert_eq!(expected, actual);
}
#[test]
fn custom_symbol() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
symbol = "shlvl is "
disabled = false
})
.env(SHLVL_ENV_VAR, "2")
.collect();
let expected = Some(format!("{} ", style().paint("shlvl is 2")));
assert_eq!(expected, actual);
}
#[test]
fn formatting() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
format = "$symbol going down [$shlvl]($style) GOING UP "
disabled = false
})
.env(SHLVL_ENV_VAR, "2")
.collect();
let expected = Some(format!("↕️ going down {} GOING UP ", style().paint("2")));
assert_eq!(expected, actual);
}
#[test]
fn repeat() {
let actual = ModuleRenderer::new("shlvl")
.config(toml::toml! {
[shlvl]
format = "[$symbol>]($style) "
symbol = "~"
repeat = true
disabled = false
})
.env(SHLVL_ENV_VAR, "3")
.collect();
let expected = Some(format!("{} ", style().paint("~~~>")));
assert_eq!(expected, actual);
}
}
|
