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|
use super::{Context, Module, RootModuleConfig};
use crate::formatter::VersionFormatter;
use crate::configs::rlang::RLangConfig;
use crate::formatter::StringFormatter;
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let mut module = context.new_module("rlang");
let config: RLangConfig = RLangConfig::try_load(module.config);
let is_r_project = context
.try_begin_scan()?
.set_files(&config.detect_files)
.set_extensions(&config.detect_extensions)
.set_folders(&config.detect_folders)
.is_match();
if !is_r_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 r_version = get_r_version(context)?;
VersionFormatter::format_module_version(
module.get_name(),
&r_version,
config.version_format,
)
.map(Ok)
}
_ => None,
})
.parse(None)
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `rlang`:\n{}", error);
return None;
}
});
Some(module)
}
fn get_r_version(context: &Context) -> Option<String> {
let r_version = context.exec_cmd("R", &["--version"])?.stderr;
parse_version(&r_version)
}
fn parse_version(r_version: &str) -> Option<String> {
r_version
.lines()
// take first line
.next()?
// split into ["R", "version", "3.6.3", "(2020-02-29)", ...]
.split_whitespace()
// and pick version entry at index 2, i.e. "3.6.3".
.nth(2)
.map(ToString::to_string)
}
#[cfg(test)]
mod tests {
use super::parse_version;
use crate::test::ModuleRenderer;
use ansi_term::Color;
use std::fs;
use std::fs::File;
use std::io;
#[test]
fn test_parse_r_version() {
let r_v3 = r#"R version 4.1.0 (2021-05-18) -- "Camp Pontanezen"
Copyright (C) 2021 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)\n
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under the terms of the
GNU General Public License versions 2 or 3.
For more information about these matters see
https://www.gnu.org/licenses/."#;
assert_eq!(parse_version(r_v3), Some(String::from("4.1.0")));
}
#[test]
fn folder_with_r_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("analysis.R"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rd_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("analysis.Rd"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rmd_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("analysis.Rmd"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rproj_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("analysis.Rproj"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rsx_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("analysis.Rsx"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rprofile_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join(".Rprofile"))?.sync_all()?;
check_r_render(&dir);
dir.close()
}
#[test]
fn folder_with_rproj_user_folder() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let rprofile = dir.path().join(".Rproj.user");
fs::create_dir_all(&rprofile)?;
check_r_render(&dir);
dir.close()
}
fn check_r_render(dir: &tempfile::TempDir) {
let actual = ModuleRenderer::new("rlang").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Blue.bold().paint("📐 v4.1.0 ")));
assert_eq!(expected, actual);
}
}
|
