133 lines
4.0 KiB
Rust
133 lines
4.0 KiB
Rust
use super::{Context, Module, ModuleConfig};
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use crate::configs::helm::HelmConfig;
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use crate::formatter::StringFormatter;
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use crate::formatter::VersionFormatter;
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/// Creates a module with the current Helm version
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
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let mut module = context.new_module("helm");
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let config = HelmConfig::try_load(module.config);
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let is_helm_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_helm_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 helm_version = parse_helm_version(
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&context
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.exec_cmd("helm", &["version", "--short", "--client"])?
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.stdout,
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)?;
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VersionFormatter::format_module_version(
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module.get_name(),
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&helm_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 `helm`:\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 parse_helm_version(helm_stdout: &str) -> Option<String> {
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// `helm version --short --client` output looks like this:
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// v3.1.1+gafe7058
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// `helm version --short --client` output looks like this for Helm 2:
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// Client: v2.16.9+g8ad7037
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let version = helm_stdout
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// split into ("v3.1.1","gafe7058") or ("Client: v3.1.1","gafe7058")
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.split_once('+')
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// return "v3.1.1" or "Client: v3.1.1"
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.map_or(helm_stdout, |x| x.0)
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// return "v3.1.1" or " v3.1.1"
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.trim_start_matches("Client: ")
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// return "v3.1.1"
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.trim_start_matches('v')
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.trim()
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.to_string();
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Some(version)
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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 nu_ansi_term::Color;
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use std::fs::File;
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use std::io;
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#[test]
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fn folder_without_helm_files() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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let actual = ModuleRenderer::new("helm").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_helm_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join("helmfile.yaml"))?.sync_all()?;
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let actual = ModuleRenderer::new("helm").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::White.bold().paint("⎈ v3.1.1 ")));
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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_chart_file() -> io::Result<()> {
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let dir = tempfile::tempdir()?;
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File::create(dir.path().join("Chart.yaml"))?.sync_all()?;
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let actual = ModuleRenderer::new("helm").path(dir.path()).collect();
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let expected = Some(format!("via {}", Color::White.bold().paint("⎈ v3.1.1 ")));
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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 test_parse_helm_version() {
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let helm_2 = "Client: v2.16.9+g8ad7037";
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let helm_3 = "v3.1.1+ggit afe7058";
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assert_eq!(parse_helm_version(helm_2), Some("2.16.9".to_string()));
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assert_eq!(parse_helm_version(helm_3), Some("3.1.1".to_string()));
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}
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}
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