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77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
package main
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import (
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"flag"
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"github.com/caarlos0/env"
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"os"
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"path"
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)
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func DefaultConfig() Config {
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c := Config{
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RootPath: "./",
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APIkey: "thisIsNotASecretTokenNow",
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Host: "localhost",
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Port: "6889",
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Title: "Shrty",
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}
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c.DB = c.RootPath + "shrty.db"
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return c
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}
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type Config struct {
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RootPath string `env:"SHRTY_ROOT_PATH"`
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DB string `env:"SHRTY_DB_FILE"`
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APIkey string `env:"SHRTY_API_KEY"`
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Host string `env:"SHRTY_HOST"`
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Port string `env:"SHRTY_PORT"`
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Domain string `env:"SHRTY_DOMAIN"`
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Title string `env:"SHRTY_TITLE"`
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CheckDomain bool `env:"SHRTY_CHECK_DOMAIN"`
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}
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func (c Config) HostPort() string {
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return c.Host + ":" + c.Port
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}
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func ReadConfig() *Config {
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c, err := readConfig(flag.NewFlagSet(os.Args[0], flag.ExitOnError), os.Args[1:])
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if err != nil {
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// sould never happen, because of flag default policy ExitOnError
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panic(err)
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}
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return c
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}
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func readConfig(f *flag.FlagSet, args []string) (*Config, error){
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config := DefaultConfig()
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// Environment variables
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err := env.Parse(&config)
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if err != nil {
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return nil, err
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}
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// Setting Rootpath from flag or enviorment and set the db path to new root.
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f.StringVar(&config.RootPath, "root", config.RootPath, "The path to the shrty root directory.")
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f.StringVar(&config.DB, "db-file", config.DB, "The db file to use")
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if config.DB == "./shrty.db" && config.RootPath != "./" {
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config.DB = path.Join(config.RootPath, "shrty.db")
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}
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// Setting up all the other flags
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f.StringVar(&config.Host, "host", config.Host, "The host to listen on")
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f.StringVar(&config.Port, "port", config.Port, "The port to listen on")
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f.StringVar(&config.APIkey, "apikey", config.APIkey, "The Key to connect to the API")
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f.StringVar(&config.Domain, "domain", config.Domain, "The domain for redirect links")
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f.StringVar(&config.Title, "title", config.Title, "The title on the Front")
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// Arguments variables
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err = f.Parse(args)
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if err != nil {
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return nil, err
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}
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return &config, err
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}
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