70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
package main
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import (
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"fmt"
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"github.com/sirupsen/logrus"
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"go.bug.st/serial"
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"gopkg.in/yaml.v2"
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"io/ioutil"
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)
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type ClientConfig struct {
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SerialAddress string `yaml:"serial_address"`
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BaudRate int `yaml:"serial_baudrate"`
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BufferSize uint16 `yaml:"serial_buffer_size"`
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Paranoid bool `yaml:"paranoid"`
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Debug bool `yaml:"debug"`
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GNUPGBinary string `yaml:"gnupg_bin"`
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OpenSSLBinary string `yaml:"openssl_bin"`
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MySQLDSN string `yaml:"mysql_dsn"`
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}
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var defaultConfig = ClientConfig{
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SerialAddress: "/dev/ttyUSB0",
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BaudRate: 115200,
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BufferSize: 2048,
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Paranoid: false,
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Debug: false,
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OpenSSLBinary: "/usr/bin/openssl",
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GNUPGBinary: "/usr/bin/gpg",
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MySQLDSN: "<username>:<password>@/database?parseTime=true",
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}
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func generateExampleConfig(configFile string) (config *ClientConfig, err error) {
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config = &defaultConfig
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configBytes, err := yaml.Marshal(config)
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if err != nil {
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logrus.Errorf("could not generate configuration data")
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return
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}
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logrus.Infof("example data for %s:\n\n---\n%s\n", configFile, configBytes)
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return
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}
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func readConfig(configFile string) (config *ClientConfig, err error) {
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source, err := ioutil.ReadFile(configFile)
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if err != nil {
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logrus.Errorf("opening configuration file failed: %v", err)
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if exampleConfig, err := generateExampleConfig(configFile); err != nil {
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return nil, err
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} else {
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logrus.Info("starting with default config")
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return exampleConfig, nil
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}
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}
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if err := yaml.Unmarshal(source, &config); err != nil {
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return nil, fmt.Errorf("loading configuration file failed: %v", err)
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}
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return config, nil
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}
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func fillSerialMode(clientConfig *ClientConfig) *serial.Mode {
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return &serial.Mode{
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BaudRate: clientConfig.BaudRate,
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DataBits: 8,
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StopBits: serial.OneStopBit,
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Parity: serial.NoParity,
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}
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}
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