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use super::{Context, Module, RootModuleConfig, SegmentConfig};
use crate::configs::nodejs::NodejsConfig;
use crate::utils;
/// Creates a module with the current Node.js version
///
/// Will display the Node.js version if any of the following criteria are met:
/// - Current directory contains a `.js` file
/// - Current directory contains a `package.json` file
/// - Current directory contains a `node_modules` directory
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let is_js_project = context
.try_begin_scan()?
.set_files(&["package.json"])
.set_extensions(&["js"])
.set_folders(&["node_modules"])
.is_match();
if !is_js_project {
return None;
}
let node_version = utils::exec_cmd("node", &["--version"])?.stdout;
let mut module = context.new_module("nodejs");
let config: NodejsConfig = NodejsConfig::try_load(module.config);
module.set_style(config.style);
let formatted_version = node_version.trim();
module.create_segment("symbol", &config.symbol);
module.create_segment("version", &SegmentConfig::new(formatted_version));
Some(module)
}
#[cfg(test)]
mod tests {
use crate::modules::utils::test::render_module;
use ansi_term::Color;
use std::fs::{self, File};
use std::io;
use tempfile;
#[test]
fn folder_without_node_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let actual = render_module("nodejs", dir.path());
let expected = None;
assert_eq!(expected, actual);
Ok(())
}
#[test]
fn folder_with_package_json() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("package.json"))?.sync_all()?;
let actual = render_module("nodejs", dir.path());
let expected = Some(format!("via {} ", Color::Green.bold().paint("⬢ v12.0.0")));
assert_eq!(expected, actual);
Ok(())
}
#[test]
fn folder_with_js_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("index.js"))?.sync_all()?;
let actual = render_module("nodejs", dir.path());
let expected = Some(format!("via {} ", Color::Green.bold().paint("⬢ v12.0.0")));
assert_eq!(expected, actual);
Ok(())
}
#[test]
fn folder_with_node_modules() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let node_modules = dir.path().join("node_modules");
fs::create_dir_all(&node_modules)?;
let actual = render_module("nodejs", dir.path());
let expected = Some(format!("via {} ", Color::Green.bold().paint("⬢ v12.0.0")));
assert_eq!(expected, actual);
Ok(())
}
}
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