Function shell_single_quote_path

perro_source/devtools/perro_cli/src/install.rs:104–108

(path: &Path)

        let existing = if profile_path.exists() {
            fs::read_to_string(profile_path)
                .map_err(|err| format!("failed to read {}: {err}", profile_path.display()))?
        } else {
            String::new()
        };

        let updated = replace_or_append_snippet(&existing, snippet)?;
        fs::write(profile_path, updated)