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Allow reading file from stdin with kopium -f - #50

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merged 1 commit into from
Apr 21, 2022
Merged

Allow reading file from stdin with kopium -f - #50

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16 changes: 14 additions & 2 deletions src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,14 @@ async fn main() -> Result<()> {
Kopium::from_args().dispatch().await
}

fn get_stdin_data() -> Result<String> {
use std::io::{stdin, Read};
let mut buf = Vec::new();
stdin().read_to_end(&mut buf)?;
let input = String::from_utf8(buf)?;
Ok(input)
}

impl Kopium {
async fn dispatch(&self) -> Result<()> {
if let Some(name) = self.crd.as_deref() {
Expand All @@ -133,8 +141,12 @@ impl Kopium {
self.generate(crd).await
} else if let Some(f) = self.file.as_deref() {
// no cluster access needed in this case
let data =
std::fs::read_to_string(&f).with_context(|| format!("Failed to read {}", f.display()))?;
let data = if f.to_string_lossy() == "-" {
get_stdin_data().with_context(|| format!("Failed to read from stdin"))?
} else {
std::fs::read_to_string(&f).with_context(|| format!("Failed to read {}", f.display()))?
};

let crd: CustomResourceDefinition = serde_yaml::from_str(&data)?;
self.generate(crd).await
} else {
Expand Down