Function NodeJsEnvironment

This is the default environment implementation for Node.js:

• Sets variables using rudimentary command line, environment and configuration file parsers.

• Processes UNIX-style signals and sets process exit codes via ProcessManager

• Creates a default storage pool using the loaded configuration.

You can modify this behavior:

• Via configuration

• By modifying Environment.default

• By providing an Environment to your components other than Environment.default

The settings are applied in this order (the higher numbers overwrite lower numbers):

1. Some internal Defaults (mainly Loglevel and such)
2. Config file
3. Environment variables (MATTER_*)
4. Command line parameters

The following variables are defined by this class additionally to Environment:

• environment - Name of the environment, Default "default"
• path.root - Path considered as root for any files to store, Fallback: ".", Default: APPDATA/.matter (Windows), HOME/.matter else (or .matter-)
• path.config - Path to config file, Default: "config.json"
• trace.path - Path of the trace file to write, Default: "trace.jsonl" relative to path.root
• trace.enable - Enable writing a trace file
• storage.path - Where to store storage files, Default: "path.root"
• storage.clear - Clear storage on start? Default: false
• runtime.signals - By default register SIGINT and SIGUSR2 (diag) handlers, set to false if not wanted
• runtime.exitcode - By default we set the process.exitcode to 0 (ok) or 1 (crash); set to false to disable
• runtime.unhandlederrors - By default we log unhandled errors to matter.js log; set to false to disable