navi-core 0.3.1

Local agentic engine and terminal-first coding agent.
Documentation 
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use serde_json::Value;

pub(super) fn find_npm_package(manifest: &str, package: &str) -> Option<String> {
    let parsed: Value = serde_json::from_str(manifest).ok()?;
    for section in [
        "dependencies",
        "devDependencies",
        "peerDependencies",
        "optionalDependencies",
    ] {
        if parsed
            .get(section)
            .and_then(Value::as_object)
            .is_some_and(|deps| deps.contains_key(package))
        {
            return Some(section.to_string());
        }
    }
    None
}

pub(super) fn find_cargo_package(manifest: &str, package: &str) -> Option<String> {
    let parsed: toml::Value = toml::from_str(manifest).ok()?;
    for section in [
        "dependencies",
        "dev-dependencies",
        "build-dependencies",
        "workspace.dependencies",
    ] {
        let table = section
            .split('.')
            .try_fold(&parsed, |value, key| value.get(key));
        if table
            .and_then(toml::Value::as_table)
            .is_some_and(|deps| deps.contains_key(package))
        {
            return Some(section.to_string());
        }
    }
    None
}

pub(super) fn find_dart_package(manifest: &str, package: &str) -> bool {
    // pubspec.yaml is YAML. Use simple line-based parsing of key: value pairs
    // under dependencies: and dev_dependencies: sections.
    let mut in_deps = false;
    let mut in_dev_deps = false;
    for line in manifest.lines() {
        let trimmed = line.trim();
        if trimmed == "dependencies:" {
            in_deps = true;
            in_dev_deps = false;
            continue;
        }
        if trimmed == "dev_dependencies:" {
            in_deps = false;
            in_dev_deps = true;
            continue;
        }
        if in_deps || in_dev_deps {
            // Check if we're still in a dependency section (indented lines)
            if !line.starts_with(' ') && !line.starts_with('\t') && !trimmed.is_empty() {
                // Top-level key encountered — exited dependency section
                in_deps = false;
                in_dev_deps = false;
                continue;
            }
            // Match dependency name before colon
            if let Some(name) = trimmed.split(':').next() {
                if name.trim() == package {
                    return true;
                }
            }
        }
    }
    false
}

pub(super) fn find_go_package(manifest: &str, package: &str) -> bool {
    let mut in_require_block = false;
    for line in manifest.lines().map(str::trim) {
        if line.starts_with("require (") {
            in_require_block = true;
            continue;
        }
        if in_require_block && line == ")" {
            in_require_block = false;
            continue;
        }
        let require_line = if let Some(rest) = line.strip_prefix("require ") {
            rest.trim()
        } else if in_require_block {
            line
        } else {
            continue;
        };
        if require_line.split_whitespace().next() == Some(package) {
            return true;
        }
    }
    false
}