72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
// Package config loads engine settings from the environment, replacing the
|
|
// hard-coded values in the original config.js / HTTPServer.js.
|
|
package config
|
|
|
|
import (
|
|
"net"
|
|
"os"
|
|
"strconv"
|
|
"time"
|
|
)
|
|
|
|
// Config holds all runtime settings.
|
|
type Config struct {
|
|
Host string // bind address, e.g. "0.0.0.0"
|
|
Port int // listen port, default 7707
|
|
|
|
PublicDir string // static assets directory (default "./public")
|
|
ScriptDir string // built SDK directory (default "./script")
|
|
|
|
ReadHeaderTimeout time.Duration // HTTP read-header timeout
|
|
ShutdownTimeout time.Duration // grace period for in-flight work on shutdown
|
|
|
|
TermOutput bool // verbose terminal logging (the old `termoutput` flag)
|
|
}
|
|
|
|
// Load reads configuration from the environment, applying defaults that match the
|
|
// original server. Recognised variables:
|
|
//
|
|
// MWSE_HOST, MWSE_PORT, MWSE_PUBLIC_DIR, MWSE_SCRIPT_DIR,
|
|
// MWSE_SHUTDOWN_TIMEOUT (seconds), MWSE_TERM_OUTPUT (1/true)
|
|
func Load() Config {
|
|
return Config{
|
|
Host: env("MWSE_HOST", "0.0.0.0"),
|
|
Port: envInt("MWSE_PORT", 7707),
|
|
PublicDir: env("MWSE_PUBLIC_DIR", "./public"),
|
|
ScriptDir: env("MWSE_SCRIPT_DIR", "./script"),
|
|
ReadHeaderTimeout: 10 * time.Second,
|
|
ShutdownTimeout: time.Duration(envInt("MWSE_SHUTDOWN_TIMEOUT", 10)) * time.Second,
|
|
TermOutput: envBool("MWSE_TERM_OUTPUT", false),
|
|
}
|
|
}
|
|
|
|
// Addr returns the host:port string for net/http.
|
|
func (c Config) Addr() string {
|
|
return net.JoinHostPort(c.Host, strconv.Itoa(c.Port))
|
|
}
|
|
|
|
func env(key, def string) string {
|
|
if v, ok := os.LookupEnv(key); ok && v != "" {
|
|
return v
|
|
}
|
|
return def
|
|
}
|
|
|
|
func envInt(key string, def int) int {
|
|
if v, ok := os.LookupEnv(key); ok {
|
|
if n, err := strconv.Atoi(v); err == nil {
|
|
return n
|
|
}
|
|
}
|
|
return def
|
|
}
|
|
|
|
func envBool(key string, def bool) bool {
|
|
if v, ok := os.LookupEnv(key); ok {
|
|
if b, err := strconv.ParseBool(v); err == nil {
|
|
return b
|
|
}
|
|
}
|
|
return def
|
|
}
|