74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
// The ConfigParser is the main structure you'll interact with when using this package.
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//
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// Example usage:
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// config := &config.ConfigParser{}
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// config.Parse(<some directory containing YAML files>)
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// virtualDevices := config.CreateVirtualDevices()
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// physicalDevices := config.ConnectVirtualDevices()
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// modes := config.GetModes()
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// rules := config.BuildRules(physicalDevices, virtualDevices, modes)
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//
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// nb: there are methods defined on ConfigParser in other files in this package!
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package config
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import (
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"errors"
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"os"
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"path/filepath"
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"strings"
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"git.annabunches.net/annabunches/joyful/internal/logger"
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"github.com/goccy/go-yaml"
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)
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type ConfigParser struct {
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config Config
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}
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// Parse all the config files and store the config data for further use
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func (parser *ConfigParser) Parse(directory string) error {
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parser.config = Config{}
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// Find the config files in the directory
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dirEntries, err := os.ReadDir(directory)
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if err != nil {
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err = os.Mkdir(directory, 0755)
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if err != nil {
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return errors.New("Failed to create config directory at " + directory)
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}
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}
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// Open each yaml file and add its contents to the global config
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for _, file := range dirEntries {
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name := file.Name()
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if file.IsDir() || !(strings.HasSuffix(name, ".yaml") || strings.HasSuffix(name, ".yml")) {
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continue
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}
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filePath := filepath.Join(directory, name)
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if strings.HasSuffix(filePath, ".yaml") || strings.HasSuffix(filePath, ".yml") {
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data, err := os.ReadFile(filePath)
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if err != nil {
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logger.LogError(err, "Error while opening config file")
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continue
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}
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newConfig := Config{}
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err = yaml.Unmarshal(data, &newConfig)
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logger.LogIfError(err, "Error parsing YAML")
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parser.config.Rules = append(parser.config.Rules, newConfig.Rules...)
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parser.config.Devices = append(parser.config.Devices, newConfig.Devices...)
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parser.config.Modes = append(parser.config.Modes, newConfig.Modes...)
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}
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}
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if len(parser.config.Devices) == 0 {
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return errors.New("Found no devices in configuration. Please add configuration at " + directory)
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}
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return nil
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}
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func (parser *ConfigParser) getModes() []string {
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return append([]string{"main"}, parser.config.Modes...)
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}
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