57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
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package main
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import (
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"encoding/json"
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"errors"
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"os"
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)
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const configPath = "config.json"
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type config struct {
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Port int `json:"port"`
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ThemeName string `json:"theme"`
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}
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// createDefaultConfig checks if a config file is present. If not, it creates the default config file.
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// It returns true if a file is created.
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func createDefaultConfig() (bool, error) {
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info, err := os.Stat(configPath)
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if err == nil {
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if info.IsDir() {
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return false, errors.New("config.json is a directory")
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}
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return false, nil
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}
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if !os.IsNotExist(err) {
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return false, err
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}
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// Create the file.
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f, err := os.Create(configPath)
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if err != nil {
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return false, err
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}
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encoder := json.NewEncoder(f)
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encoder.SetIndent("", "\t")
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err = encoder.Encode(config{
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Port: 80,
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ThemeName: "default",
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})
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return true, err
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}
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// parseConfig parses the config file into a struct
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func parseConfig() (config, error) {
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// Open the file.
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f, err := os.Open(configPath)
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if err != nil {
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return config{}, err
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}
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defer f.Close()
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// Decode it into the config struct.
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var cfg config
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err = json.NewDecoder(f).Decode(&cfg)
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return cfg, err
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}
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