2b0dd3ab99
* Refactor CLI * Add config:print command * Add diagnose command * Allow including other files in config * Watch for file changes and automatically restart server
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package glance
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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)
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type cliIntent uint8
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const (
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cliIntentServe cliIntent = iota
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cliIntentConfigValidate = iota
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cliIntentConfigPrint = iota
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cliIntentDiagnose = iota
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)
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type cliOptions struct {
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intent cliIntent
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configPath string
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}
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func parseCliOptions() (*cliOptions, error) {
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flags := flag.NewFlagSet("", flag.ExitOnError)
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flags.Usage = func() {
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fmt.Println("Usage: glance [options] command")
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fmt.Println("\nOptions:")
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flags.PrintDefaults()
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fmt.Println("\nCommands:")
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fmt.Println(" config:validate Validate the config file")
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fmt.Println(" config:print Print the parsed config file with embedded includes")
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fmt.Println(" diagnose Run diagnostic checks")
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}
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configPath := flags.String("config", "glance.yml", "Set config path")
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err := flags.Parse(os.Args[1:])
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if err != nil {
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return nil, err
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}
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var intent cliIntent
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var args = flags.Args()
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unknownCommandErr := fmt.Errorf("unknown command: %s", strings.Join(args, " "))
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if len(args) == 0 {
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intent = cliIntentServe
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} else if len(args) == 1 {
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if args[0] == "config:validate" {
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intent = cliIntentConfigValidate
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} else if args[0] == "config:print" {
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intent = cliIntentConfigPrint
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} else if args[0] == "diagnose" {
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intent = cliIntentDiagnose
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} else {
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return nil, unknownCommandErr
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}
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} else {
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return nil, unknownCommandErr
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}
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return &cliOptions{
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intent: intent,
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configPath: *configPath,
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}, nil
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}
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