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candle_graph/
cli.rs

1//! Trace-file CLI helpers.
2
3pub mod trace_cli;
4
5use anyhow::{Context, Result};
6use std::io::{self, Write};
7use std::path::Path;
8
9pub fn write_output(path: Option<&Path>, bytes: &[u8]) -> Result<()> {
10    match path {
11        Some(path) => {
12            if let Some(parent) = path
13                .parent()
14                .filter(|parent| !parent.as_os_str().is_empty())
15            {
16                std::fs::create_dir_all(parent)
17                    .with_context(|| format!("creating {}", parent.display()))?;
18            }
19            std::fs::write(path, bytes).with_context(|| format!("writing {}", path.display()))?;
20        }
21        None => io::stdout().lock().write_all(bytes)?,
22    }
23    Ok(())
24}