Viper: SafeWriteConfig() fails if file does not exist

[TWinsnes]

When calling viper.SafeWriteCofig() it fails with a file not found error.

Test code attached.

package main

import (
    "fmt"
    "os"

    "github.com/spf13/viper"
)

func main() {
    viper.AddConfigPath("/tmp")
    viper.SetConfigName("filename")
    viper.SetConfigType("yaml")
    viper.SetDefault("LogLevel", "Info")

    fmt.Println("Writing Config file!")
    err := viper.SafeWriteConfig()

    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }

    fmt.Println("wrote config file")
}

Output:

Writing Config file!
Config File "filename" Not Found in "[/tmp]"

Expected output:

Write Config file!
wrote config file

[tskardal]

+1

Currently the documentation for SafeWriteConfig is quite misleading 😅

SafeWriteConfig writes current configuration to file only if the file does not exist.

This is issue is also present for SafeWriteConfigAs

[Vaelatern]

This is fixed in https://github.com/spf13/viper/pull/450

[sureshannadurai]

Use viper.SetConfigFile("filename.yaml") instead of viper.SetConfigName("filename") then SafeWriteConfig and SafeWriteConfigAs() will work