Node.js Installation

def install_node(env_dir, src_dir, args):
    """
    Install Node.js in the virtual environment.
    
    Parameters:
    env_dir (str): Environment directory path
    src_dir (str): Source/download directory path  
    args (argparse.Namespace): Configuration arguments
    
    Installs Node.js using the method specified in args:
    - Prebuilt binaries (default, faster)
    - Source compilation (slower, more compatible)
    - System Node.js (symlink to existing installation)
    
    Handles platform-specific installation procedures and
    configures the Node.js installation for the environment.
    """

def install_node_wrapped(env_dir, src_dir, args):
    """
    Install Node.js with enhanced error handling and progress reporting.
    
    Parameters:
    env_dir (str): Environment directory path
    src_dir (str): Source/download directory path
    args (argparse.Namespace): Configuration arguments
    
    Provides a wrapper around install_node with:
    - Enhanced error reporting and recovery
    - Progress indication during installation
    - Cleanup on installation failure
    - Validation of successful installation
    """

def copy_node_from_prebuilt(env_dir, src_dir, node_version):
    """
    Copy Node.js from prebuilt binary distribution.
    
    Parameters:
    env_dir (str): Target environment directory
    src_dir (str): Directory containing downloaded binaries
    node_version (str): Node.js version being installed
    
    Extracts and copies prebuilt Node.js binaries to the environment.
    Handles platform-specific binary formats and directory structures.
    Configures executable permissions and creates necessary symlinks.
    """

def build_node_from_src(env_dir, src_dir, node_src_dir, args):
    """
    Build Node.js from source code.
    
    Parameters:
    env_dir (str): Target environment directory
    src_dir (str): Source download directory  
    node_src_dir (str): Node.js source code directory
    args (argparse.Namespace): Build configuration arguments
    
    Compiles Node.js from source with options:
    - Custom compilation flags
    - SSL support configuration (--without-ssl)
    - Parallel build jobs (--jobs)
    - Platform-specific optimizations
    
    Provides more control and compatibility at the cost of build time.
    """

def get_node_bin_url(version):
    """
    Get download URL for Node.js prebuilt binary.
    
    Parameters:
    version (str): Node.js version (e.g., '16.20.0')
    
    Returns:
    str: Download URL for platform-appropriate binary
    
    Generates URLs based on:
    - Platform detection (Linux, macOS, Windows)
    - Architecture detection (x64, arm64, etc.)
    - Special handling for musl and RISC-V systems
    """

def get_node_src_url(version):
    """
    Get download URL for Node.js source code.
    
    Parameters:
    version (str): Node.js version
    
    Returns:
    str: Download URL for source tarball
    """

def get_root_url(version_str):
    """
    Get root URL for Node.js downloads based on version.
    
    Parameters:
    version_str (str): Node.js version string
    
    Returns:
    str: Base URL for Node.js downloads
    
    Handles different download sources and mirrors.
    """

def get_root_url(version_str):
    """
    Get root URL for Node.js downloads based on version.
    
    Parameters:
    version_str (str): Node.js version string
    
    Returns:
    str: Base URL for Node.js downloads
    
    Adjusts URL structure based on Node.js version (pre/post 0.5).
    Handles different download sources and mirrors.
    """

def get_node_src_url(version):
    """
    Get download URL for Node.js source code.
    
    Parameters:
    version (str): Node.js version
    
    Returns:
    str: Download URL for source tarball
    
    Constructs complete URL for downloading Node.js source code
    tarball based on version and root URL structure.
    """

def download_node_src(node_url, src_dir, args):
    """
    Download Node.js source or binary distribution.
    
    Parameters:
    node_url (str): Download URL
    src_dir (str): Target download directory
    args (argparse.Namespace): Configuration arguments
    
    Downloads and extracts Node.js distributions with:
    - Progress reporting
    - Retry logic for failed downloads
    - Checksum verification (when available)
    - Proxy support
    """

import nodeenv
from argparse import Namespace

args = Namespace(
    node='latest',
    source=False,  # Use prebuilt binaries
    without_ssl=False,
    jobs='2'
)

nodeenv.install_node('/path/to/env', '/tmp/nodeenv-src', args)

import nodeenv  
from argparse import Namespace

args = Namespace(
    node='16.20.0',
    source=True,  # Build from source
    without_ssl=True,  # Disable SSL
    jobs='4'  # Use 4 parallel jobs
)

nodeenv.install_node('/path/to/env', '/tmp/nodeenv-src', args)