api/env.rs

Normalizes and validates a HashMap of environment variables, sorting keys and rejecting invalid entries.

// Source: https://github.com/herdrdev/herdr | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
use std::collections::HashMap;

pub(super) fn normalize_launch_env(
    env: HashMap<String, String>,
) -> Result<Vec<(String, String)>, (String, String)> {
    let mut normalized = Vec::with_capacity(env.len());
    for (key, value) in env {
        if key.is_empty() {
            return Err(("invalid_env".into(), "env key must not be empty".into()));
        }
        if key.contains('=') {
            return Err((
                "invalid_env".into(),
                format!("env key {key} must not contain '='"),
            ));
        }
        if key.contains('\0') {
            retu

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