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|
use super::{Context, Module, RootModuleConfig};
use crate::configs::julia::JuliaConfig;
use crate::formatter::StringFormatter;
/// Creates a module with the current Julia version
///
/// Will display the Julia version if any of the following criteria are met:
/// - Current directory contains a `Project.toml` file
/// - Current directory contains a `Manifest.toml` file
/// - Current directory contains a file with the `.jl` extension
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let is_julia_project = context
.try_begin_scan()?
.set_files(&["Project.toml", "Manifest.toml"])
.set_extensions(&["jl"])
.is_match();
if !is_julia_project {
return None;
}
let mut module = context.new_module("julia");
let config = JuliaConfig::try_load(module.config);
let parsed = StringFormatter::new(config.format).and_then(|formatter| {
formatter
.map_meta(|var, _| match var {
"symbol" => Some(config.symbol),
_ => None,
})
.map_style(|variable| match variable {
"style" => Some(Ok(config.style)),
_ => None,
})
.map(|variable| match variable {
"version" => format_julia_version(
&context.exec_cmd("julia", &["--version"])?.stdout.as_str(),
)
.map(Ok),
_ => None,
})
.parse(None)
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `julia`:\n{}", error);
return None;
}
});
Some(module)
}
fn format_julia_version(julia_stdout: &str) -> Option<String> {
// julia version output looks like this:
// julia version 1.4.0
let version = julia_stdout
// split into ["", "1.4.0"]
.splitn(2, "julia version")
// return "1.4.0"
.nth(1)?
.split_whitespace()
.next()?;
Some(format!("v{}", version))
}
#[cfg(test)]
mod tests {
use super::*;
use crate::test::ModuleRenderer;
use ansi_term::Color;
use std::fs::File;
use std::io;
#[test]
fn folder_without_julia_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let actual = ModuleRenderer::new("julia").path(dir.path()).collect();
let expected = None;
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_julia_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("hello.jl"))?.sync_all()?;
let actual = ModuleRenderer::new("julia").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Purple.bold().paint("ஃ v1.4.0 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_project_toml() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("Project.toml"))?.sync_all()?;
let actual = ModuleRenderer::new("julia").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Purple.bold().paint("ஃ v1.4.0 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_manifest_toml() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("Manifest.toml"))?.sync_all()?;
let actual = ModuleRenderer::new("julia").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Purple.bold().paint("ஃ v1.4.0 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_format_julia_version() {
let input = "julia version 1.4.0";
assert_eq!(format_julia_version(input), Some("v1.4.0".to_string()));
}
}
|
