113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
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package cli
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import (
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"fmt"
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"math"
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"os"
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"os/user"
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"path/filepath"
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"time"
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"github.com/Masterminds/semver"
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"github.com/volker-raschek/flucky/cli/daemon"
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"github.com/volker-raschek/flucky/cli/sensor"
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"github.com/volker-raschek/flucky/pkg/config"
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"github.com/volker-raschek/flucky/pkg/types"
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uuid "github.com/satori/go.uuid"
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"github.com/spf13/cobra"
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)
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// Execute a
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func Execute(version *semver.Version) error {
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rootCmd := &cobra.Command{
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Use: "flucky",
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// Short: "flucky - operate with differen sensors, his values and remote servers to synchronize measured values",
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PersistentPreRunE: preRunError,
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Version: version.String(),
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}
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defaultConfigFile, err := getDefaultConfigFile()
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if err != nil {
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return err
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}
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rootCmd.PersistentFlags().String("config", defaultConfigFile, "Config file")
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rootCmd.PersistentFlags().String("loglevel", "info", "Set the Loglevel. Possible values: debug, info, warn, error, fatal")
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subCommands := []func(cmd *cobra.Command) error{
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daemon.InitCmd,
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sensor.InitCmd,
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}
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for _, subCommand := range subCommands {
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if err := subCommand(rootCmd); err != nil {
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return err
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}
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}
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err = rootCmd.Execute()
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if err != nil {
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return err
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}
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return nil
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}
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func preRunError(cmd *cobra.Command, args []string) error {
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configFile := cmd.Flag("config").Value.String()
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// check if config file exists
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if _, err := os.Stat(configFile); os.IsNotExist(err) {
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hostname, err := os.Hostname()
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if err != nil {
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return fmt.Errorf("Failed to determine the hostname: %v", err)
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}
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// Time must be truncted for postgres. Postgres currently does not support
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// nanoseconds which is automatically include into the go time object
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postgresTimeStamp := time.Now()
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location, err := time.LoadLocation("Europe/Berlin")
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if err != nil {
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return err
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}
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postgresTimeStamp = time.Date(postgresTimeStamp.Year(), postgresTimeStamp.Month(), postgresTimeStamp.Day(), postgresTimeStamp.Hour(), postgresTimeStamp.Minute(), postgresTimeStamp.Second(), int(math.Round(float64(postgresTimeStamp.Nanosecond())/1000000)*1000000), location)
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// Default configuration
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cnf := config.Config{
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Device: &types.Device{
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ID: uuid.NewV4().String(),
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Name: hostname,
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CreationDate: postgresTimeStamp,
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},
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StorageEndpoint: "file:/var/log/flucky/sqlite.db?cache=shared&mode=memory",
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}
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err = config.Write(&cnf, configFile)
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if err != nil {
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return err
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}
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}
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return nil
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}
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// GetDefaultConfigPath returns the default path to the configuration of
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// rpm-distributor
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func getDefaultConfigFile() (string, error) {
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u, err := user.Current()
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if err != nil {
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return "", fmt.Errorf("Can not read current user: %v", err)
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}
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switch u.Uid {
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case "0":
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return "/etc/flucky/config.json", nil
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default:
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return filepath.Join(u.HomeDir, ".config/flucky/config.json"), nil
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}
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}
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