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use super::{Context, Module, RootModuleConfig, SegmentConfig};
use crate::configs::crystal::CrystalConfig;
use crate::utils;
/// Creates a module with the current Crystal version
///
/// Will display the Crystal version if any of the following criteria are met:
/// - Current directory contains a `.cr` file
/// - Current directory contains a `shard.yml` file
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let is_crystal_project = context
.try_begin_scan()?
.set_files(&["shard.yml"])
.set_extensions(&["cr"])
.is_match();
if !is_crystal_project {
return None;
}
let crystal_version = utils::exec_cmd("crystal", &["--version"])?.stdout;
let formatted_version = format_crystal_version(&crystal_version)?;
let mut module = context.new_module("crystal");
let config: CrystalConfig = CrystalConfig::try_load(module.config);
module.set_style(config.style);
module.create_segment("symbol", &config.symbol);
module.create_segment("version", &SegmentConfig::new(&formatted_version));
Some(module)
}
fn format_crystal_version(crystal_version: &str) -> Option<String> {
let version = crystal_version
// split into ["Crystal", "0.32.1", ...]
.split_whitespace()
// return "0.32.1"
.nth(1)?;
let mut formatted_version = String::with_capacity(version.len() + 1);
formatted_version.push('v');
formatted_version.push_str(version);
Some(formatted_version)
}
#[cfg(test)]
mod tests {
use crate::modules::utils::test::render_module;
use ansi_term::Color;
use std::fs::File;
use std::io;
#[test]
fn folder_without_crystal_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let actual = render_module("crystal", dir.path(), None);
let expected = None;
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_shard_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("shard.yml"))?.sync_all()?;
let actual = render_module("crystal", dir.path(), None);
let expected = Some(format!("via {} ", Color::Red.bold().paint("🔮 v0.32.1")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_cr_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("main.cr"))?.sync_all()?;
let actual = render_module("crystal", dir.path(), None);
let expected = Some(format!("via {} ", Color::Red.bold().paint("🔮 v0.32.1")));
assert_eq!(expected, actual);
dir.close()
}
}
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