diff options
Diffstat (limited to 'src/modules/fennel.rs')
-rw-r--r-- | src/modules/fennel.rs | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/modules/fennel.rs b/src/modules/fennel.rs new file mode 100644 index 000000000..4b8a2fc98 --- /dev/null +++ b/src/modules/fennel.rs @@ -0,0 +1,107 @@ +use super::{Context, Module, ModuleConfig}; + +use crate::configs::fennel::FennelConfig; +use crate::formatter::{StringFormatter, VersionFormatter}; +use crate::utils::get_command_string_output; + +pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> { + let mut module = context.new_module("fennel"); + let config = FennelConfig::try_load(module.config); + + let is_fnl_project = context + .try_begin_scan()? + .set_files(&config.detect_files) + .set_extensions(&config.detect_extentions) + .set_folders(&config.detect_folders) + .is_match(); + + if !is_fnl_project { + return None; + } + + 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" => { + let fennel_version_string = + get_command_string_output(context.exec_cmd("fennel", &["--version"])?); + let fennel_version = parse_fennel_version(&fennel_version_string)?; + VersionFormatter::format_module_version( + module.get_name(), + &fennel_version, + config.version_format, + ) + .map(Ok) + } + _ => None, + }) + .parse(None, Some(context)) + }); + + module.set_segments(match parsed { + Ok(segments) => segments, + Err(error) => { + log::warn!("Error in module `fennel`:\n{}", error); + return None; + } + }); + + Some(module) +} + +fn parse_fennel_version(fennel_version: &str) -> Option<String> { + // fennel -v output looks like this: + // Fennel 1.2.1 on PUC Lua 5.4 + let version = fennel_version + // split into ["Fennel", "1.2.1", "on", ...] + .split_whitespace() + // take "1.2.1" + .nth(1)?; + + Some(version.to_string()) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::test::ModuleRenderer; + use nu_ansi_term::Color; + use std::fs::File; + use std::io; + + #[test] + fn folder_without_fennel_files() -> io::Result<()> { + let dir = tempfile::tempdir()?; + let actual = ModuleRenderer::new("fennel").path(dir.path()).collect(); + let expected = None; + assert_eq!(expected, actual); + dir.close() + } + + #[test] + fn folder_with_fennel_files() -> io::Result<()> { + let dir = tempfile::tempdir()?; + File::create(dir.path().join("man.fnl"))?.sync_all()?; + let actual = ModuleRenderer::new("fennel").path(dir.path()).collect(); + let expected = Some(format!("via {}", Color::Green.bold().paint("🧅 v1.2.1 "))); + assert_eq!(expected, actual); + dir.close() + } + + #[test] + fn test_parse_fennel_version() { + let fennel_input = "Fennel 1.2.1 on PUC Lua 5.4"; + assert_eq!( + parse_fennel_version(fennel_input), + Some("1.2.1".to_string()) + ); + } +} |