mirror of
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172 lines
5.6 KiB
Rust
172 lines
5.6 KiB
Rust
use crate::configs::scala::ScalaConfig;
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use crate::formatter::StringFormatter;
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use super::{Context, Module, RootModuleConfig};
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use crate::formatter::VersionFormatter;
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use crate::utils::get_command_string_output;
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
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let mut module = context.new_module("scala");
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let config: ScalaConfig = ScalaConfig::try_load(module.config);
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let is_scala_project = context
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.try_begin_scan()?
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.set_files(&config.detect_files)
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.set_extensions(&config.detect_extensions)
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.set_folders(&config.detect_folders)
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.is_match();
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if !is_scala_project {
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return None;
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}
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let parsed = StringFormatter::new(config.format).and_then(|formatter| {
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formatter
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.map_meta(|var, _| match var {
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"symbol" => Some(config.symbol),
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_ => None,
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})
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.map_style(|variable| match variable {
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"style" => Some(Ok(config.style)),
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_ => None,
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})
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.map(|variable| match variable {
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"version" => {
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let scala_version = get_scala_version(context)?;
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VersionFormatter::format_module_version(
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module.get_name(),
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&scala_version,
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config.version_format,
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)
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.map(Ok)
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}
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_ => None,
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})
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.parse(None, Some(context))
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});
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module.set_segments(match parsed {
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Ok(segments) => segments,
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Err(error) => {
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log::warn!("Error in module `scala`:\n{}", error);
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return None;
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}
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});
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Some(module)
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}
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fn get_scala_version(context: &Context) -> Option<String> {
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let command = context.exec_cmd("scalac", &["-version"])?;
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let scala_version_string = get_command_string_output(command);
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parse_scala_version(&scala_version_string)
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}
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fn parse_scala_version(scala_version_string: &str) -> Option<String> {
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let version = scala_version_string
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// split into ["Scala", "compiler", "version", "2.13.5", "--", ...]
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.split_whitespace()
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// take "2.13.5"
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.nth(3)?;
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Some(version.to_string())
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::test::ModuleRenderer;
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use ansi_term::Color;
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use std::fs::{self, File};
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use std::io;
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#[test]
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fn test_parse_scala_version() {
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let scala_2_13 =
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"Scala compiler version 2.13.5 -- Copyright 2002-2020, LAMP/EPFL and Lightbend, Inc.";
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assert_eq!(parse_scala_version(scala_2_13), Some("2.13.5".to_string()));
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}
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#[test]
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fn test_parse_dotty_version() {
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let dotty_version = "Scala compiler version 3.0.0-RC1 -- Copyright 2002-2021, LAMP/EPFL";
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assert_eq!(
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parse_scala_version(dotty_version),
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Some("3.0.0-RC1".to_string())
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);
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}
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#[test]
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fn folder_without_scala_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = None;
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_scala_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join("Test.scala"))?.sync_all()?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 v2.13.5 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_scala_file_no_scala_installed() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join("Test.scala"))?.sync_all()?;
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let actual = ModuleRenderer::new("scala")
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.cmd("scalac -version", None)
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.path(dir.path())
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.collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_sbt_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join("build.sbt"))?.sync_all()?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 v2.13.5 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_scala_env_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join(".scalaenv"))?.sync_all()?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 v2.13.5 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_sbt_env_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join(".sbtenv"))?.sync_all()?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 v2.13.5 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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#[test]
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fn folder_with_metals_dir() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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fs::create_dir_all(dir.path().join(".metals"))?;
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let actual = ModuleRenderer::new("scala").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::Red.bold().paint("🆂 v2.13.5 ")));
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assert_eq!(expected, actual);
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dir.close()
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}
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}
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