starship/src/modules/meson.rs

99 lines
2.7 KiB
Rust

use super::{Context, Module, ModuleConfig};
use super::utils::truncate::truncate_text;
use crate::configs::meson::MesonConfig;
use crate::formatter::StringFormatter;
/// Creates a module with the current Meson dev environment
///
/// Will display the Meson environment if `$MESON_DEVENV` and `MESON_PROJECT_NAME` are set.
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let meson_env = context.get_env("MESON_DEVENV")?;
let project_env = context.get_env("MESON_PROJECT_NAME")?;
if meson_env != "1" || project_env.trim().is_empty() {
return None;
}
let mut module = context.new_module("meson");
let config: MesonConfig = MesonConfig::try_load(module.config);
let truncated_text = truncate_text(
&project_env,
config.truncation_length as usize,
config.truncation_symbol,
);
let parsed = StringFormatter::new(config.format).and_then(|formatter| {
formatter
.map_meta(|variable, _| match variable {
"symbol" => Some(config.symbol),
_ => None,
})
.map_style(|variable| match variable {
"style" => Some(Ok(config.style)),
_ => None,
})
.map(|variable| match variable {
"project" => Some(Ok(&truncated_text)),
_ => None,
})
.parse(None, Some(context))
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `meson`:\n{}", error);
return None;
}
});
Some(module)
}
#[cfg(test)]
mod tests {
use crate::test::ModuleRenderer;
use nu_ansi_term::Color;
#[test]
fn not_in_env() {
let actual = ModuleRenderer::new("meson").collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn env_set() {
let actual = ModuleRenderer::new("meson")
.env("MESON_DEVENV", "1")
.env("MESON_PROJECT_NAME", "starship")
.collect();
let expected = Some(format!("via {} ", Color::Blue.bold().paint("⬢ starship")));
assert_eq!(expected, actual);
}
#[test]
fn env_invalid_devenv() {
let actual = ModuleRenderer::new("meson")
.env("MESON_DEVENV", "0")
.env("MESON_PROJECT_NAME", "starship")
.collect();
let expected = None;
assert_eq!(expected, actual);
}
#[test]
fn env_invalid_project_name() {
let actual = ModuleRenderer::new("meson")
.env("MESON_DEVENV", "1")
.env("MESON_PROJECT_NAME", " ")
.collect();
let expected = None;
assert_eq!(expected, actual);
}
}