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feat(nats): Add NATS Context (#5900)
--------- Co-authored-by: David Knaack <[email protected]>
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Original file line number | Diff line number | Diff line change |
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@@ -109,6 +109,9 @@ symbol = "memory " | |
[meson] | ||
symbol = "meson " | ||
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[nats] | ||
symbol = "nats " | ||
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[nim] | ||
symbol = "nim " | ||
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,26 @@ | ||
use serde::{Deserialize, Serialize}; | ||
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#[derive(Clone, Deserialize, Serialize)] | ||
#[cfg_attr( | ||
feature = "config-schema", | ||
derive(schemars::JsonSchema), | ||
schemars(deny_unknown_fields) | ||
)] | ||
#[serde(default)] | ||
pub struct NatsConfig<'a> { | ||
pub format: &'a str, | ||
pub symbol: &'a str, | ||
pub style: &'a str, | ||
pub disabled: bool, | ||
} | ||
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impl<'a> Default for NatsConfig<'a> { | ||
fn default() -> Self { | ||
NatsConfig { | ||
format: "[$symbol($name )]($style)", | ||
symbol: "✉️ ", | ||
style: "bold purple", | ||
disabled: true, | ||
} | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,89 @@ | ||
use super::{Context, Module, ModuleConfig}; | ||
use serde_json as json; | ||
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use crate::configs::nats::NatsConfig; | ||
use crate::formatter::StringFormatter; | ||
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> { | ||
let mut module = context.new_module("nats"); | ||
let config = NatsConfig::try_load(module.config); | ||
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if config.disabled { | ||
return None; | ||
}; | ||
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let ctx_str = context | ||
.exec_cmd("nats", &["context", "info", "--json"])? | ||
.stdout; | ||
let nats_context: json::Value = json::from_str(&ctx_str) | ||
.map_err(|e| { | ||
log::warn!("Error parsing nats context JSON: {}\n", e); | ||
drop(e); | ||
}) | ||
.ok()?; | ||
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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 { | ||
"name" => Some(Ok(nats_context.get("name")?.as_str()?)), | ||
_ => None, | ||
}) | ||
.parse(None, Some(context)) | ||
}); | ||
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module.set_segments(match parsed { | ||
Ok(segments) => segments, | ||
Err(error) => { | ||
log::warn!("Error in module `nats`:\n{}", error); | ||
return None; | ||
} | ||
}); | ||
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Some(module) | ||
} | ||
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#[cfg(test)] | ||
mod tests { | ||
use nu_ansi_term::Color; | ||
use std::io; | ||
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use crate::test::ModuleRenderer; | ||
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#[test] | ||
fn show_context() -> io::Result<()> { | ||
let actual = ModuleRenderer::new("nats") | ||
.config(toml::toml! { | ||
[nats] | ||
format = "[$symbol$name](bold purple)" | ||
symbol = "" | ||
disabled = false | ||
}) | ||
.collect(); | ||
let expected = Some(format!("{}", Color::Purple.bold().paint("localhost"))); | ||
assert_eq!(expected, actual); | ||
Ok(()) | ||
} | ||
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#[test] | ||
fn test_with_symbol() -> io::Result<()> { | ||
let actual = ModuleRenderer::new("nats") | ||
.config(toml::toml! { | ||
[nats] | ||
format = "[$symbol$name](bold red)" | ||
symbol = "✉️ " | ||
disabled = false | ||
}) | ||
.collect(); | ||
let expected = Some(format!("{}", Color::Red.bold().paint("✉️ localhost"))); | ||
assert_eq!(expected, actual); | ||
Ok(()) | ||
} | ||
} |
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