128 lines
3.8 KiB
Rust
128 lines
3.8 KiB
Rust
use super::{Context, Module, RootModuleConfig};
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use crate::configs::helm::HelmConfig;
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use crate::formatter::StringFormatter;
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use crate::utils;
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/// Creates a module with the current Helm version
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///
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/// Will display the Helm version if any of the following criteria are met:
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/// - Current directory contains a `helmfile.yaml` file
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/// - Current directory contains a `Chart.yaml` file
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
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let is_helm_project = context
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.try_begin_scan()?
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.set_files(&["helmfile.yaml", "Chart.yaml"])
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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 mut module = context.new_module("helm");
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let config = HelmConfig::try_load(module.config);
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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" => format_helm_version(
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&utils::exec_cmd("helm", &["version", "--short", "--client"])?
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.stdout
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.as_str(),
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)
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.map(Ok),
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_ => None,
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})
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.parse(None)
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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 format_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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Some(
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helm_stdout
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// split into ["v3.1.1","gafe7058"] or ["Client: v3.1.1","gafe7058"]
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.splitn(2, '+')
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// return "v3.1.1" or "Client: v3.1.1"
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.next()?
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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()
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.to_owned(),
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)
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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::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_format_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!(format_helm_version(helm_2), Some("v2.16.9".to_string()));
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assert_eq!(format_helm_version(helm_3), Some("v3.1.1".to_string()));
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}
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}
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