hacker-quotes/settings.go

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package hacker
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"github.com/zorchenhimer/hacker-quotes/database"
)
type settings struct {
DatabaseType database.DbType
ConnectionString string
HttpAddr string
}
func loadSettings(filename string) (*settings, error) {
if !fileExists(filename) {
return nil, fmt.Errorf("%q doesn't exist", filename)
//return &settings{
// HttpAddr: ":8080",
//}, nil
}
raw, err := ioutil.ReadFile(filename)
if err != nil {
return nil, fmt.Errorf("Error reading file: %s", err)
}
s := &settings{}
if err = json.Unmarshal(raw, s); err != nil {
return nil, fmt.Errorf("Error unmarshaling: %s", err)
}
return s, nil
}
// fileExists returns whether the given file or directory exists or not.
// Taken from https://stackoverflow.com/a/10510783
func fileExists(path string) bool {
_, err := os.Stat(path)
if err == nil {
return true
}
if os.IsNotExist(err) {
return false
}
return true
}