Function write_sibling_temp_file

src/formatting.rs:482–500

Write content to a temporary file in the same directory as `original` so that tool config discovery (which walks up from the file) works. Returns a `NamedTempFile` whose destructor automatically removes the file on drop. The caller must keep it alive until after reading back the formatted content.

(original: &Path, content: &str)

/// file on drop.  The caller must keep it alive until after reading back
/// the formatted content.
fn write_sibling_temp_file(original: &Path, content: &str) -> Result<NamedTempFile, String> {
    let parent = original
        .parent()
        .ok_or_else(|| "Cannot determine parent directory of file".to_string())?;

    let mut temp = tempfile::Builder::new()
        .prefix(".phpantom-fmt-")
        .suffix(".php")
        .tempfile_in(parent)
        .map_err(|e| format!("Failed to create temp file in {}: {}", parent.display(), e))?;

    temp.write_all(content.as_bytes())
        .map_err(|e| format!("Failed to write temp file: {}", e))?;

    temp.flush()
        .map_err(|e| format!("Failed to flush temp file: {}", e))?;

    Ok(temp)
}

/// Result of running an external command.
struct CommandResult {