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|
use super::{Context, Module, RootModuleConfig};
use crate::configs::helm::HelmConfig;
use crate::formatter::StringFormatter;
/// Creates a module with the current Helm version
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let mut module = context.new_module("helm");
let config = HelmConfig::try_load(module.config);
let is_helm_project = context
.try_begin_scan()?
.set_files(&config.detect_files)
.set_extensions(&config.detect_extensions)
.set_folders(&config.detect_folders)
.is_match();
if !is_helm_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" => format_helm_version(
&context
.exec_cmd("helm", &["version", "--short", "--client"])?
.stdout
.as_str(),
)
.map(Ok),
_ => None,
})
.parse(None)
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `helm`:\n{}", error);
return None;
}
});
Some(module)
}
fn format_helm_version(helm_stdout: &str) -> Option<String> {
// `helm version --short --client` output looks like this:
// v3.1.1+gafe7058
// `helm version --short --client` output looks like this for Helm 2:
// Client: v2.16.9+g8ad7037
Some(
helm_stdout
// split into ["v3.1.1","gafe7058"] or ["Client: v3.1.1","gafe7058"]
.splitn(2, '+')
// return "v3.1.1" or "Client: v3.1.1"
.next()?
// return "v3.1.1" or " v3.1.1"
.trim_start_matches("Client: ")
// return "v3.1.1"
.trim()
.to_owned(),
)
}
#[cfg(test)]
mod tests {
use super::*;
use crate::test::ModuleRenderer;
use ansi_term::Color;
use std::fs::File;
use std::io;
#[test]
fn folder_without_helm_files() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let actual = ModuleRenderer::new("helm").path(dir.path()).collect();
let expected = None;
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_helm_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("helmfile.yaml"))?.sync_all()?;
let actual = ModuleRenderer::new("helm").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::White.bold().paint("⎈ v3.1.1 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_chart_file() -> io::Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join("Chart.yaml"))?.sync_all()?;
let actual = ModuleRenderer::new("helm").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::White.bold().paint("⎈ v3.1.1 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_format_helm_version() {
let helm_2 = "Client: v2.16.9+g8ad7037";
let helm_3 = "v3.1.1+ggit afe7058";
assert_eq!(format_helm_version(helm_2), Some("v2.16.9".to_string()));
assert_eq!(format_helm_version(helm_3), Some("v3.1.1".to_string()));
}
}
|
