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use super::{Context, Module, RootModuleConfig};
use crate::configs::crystal::CrystalConfig;
use crate::formatter::StringFormatter;
/// Creates a module with the current Crystal version
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let mut module = context.new_module("crystal");
let config: CrystalConfig = CrystalConfig::try_load(module.config);
let is_crystal_project = context
.try_begin_scan()?
.set_files(&config.detect_files)
.set_extensions(&config.detect_extensions)
.set_folders(&config.detect_folders)
.is_match();
if !is_crystal_project {
return None;
}
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 {
"version" => format_crystal_version(
context.exec_cmd("crystal", &["--version"])?.stdout.as_str(),
)
.map(Ok),
_ => None,
})
.parse(None)
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `crystal`:\n{}", error);
return None;
}
});
Some(module)
}
fn format_crystal_version(crystal_version: &str) -> Option<String> {
let version = crystal_version
// split into ["Crystal", "0.35.1", ...]
.split_whitespace()
// return "0.35.1"
.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::test::ModuleRenderer;
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 = ModuleRenderer::new("crystal").path(dir.path()).collect();
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 = ModuleRenderer::new("crystal").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Red.bold().paint("🔮 v0.35.1 ")));
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 = ModuleRenderer::new("crystal").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Red.bold().paint("🔮 v0.35.1 ")));
assert_eq!(expected, actual);
dir.close()
}
}
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