Created
August 24, 2023 09:27
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Parse cmdargs in Golang.
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| import ( | |
| "github.com/akamensky/argparse" | |
| ) | |
| func main() { | |
| parser := argparse.NewParser("my2go", "Generate GORM models from MySQL database") | |
| // register arguments | |
| host := parser.String("n", "host", &argparse.Options{Required: false, Help: "MySQL host", Default: "localhost"}) | |
| port := parser.Int("p", "port", &argparse.Options{Required: false, Help: "MySQL port", Default: 3306}) | |
| database := parser.String("d", "database", &argparse.Options{Required: false, Help: "MySQL database (schema)", Default: "demo"}) | |
| user := parser.String("u", "user", &argparse.Options{Required: true, Help: "MySQL username"}) | |
| out := parser.String("o", "out", &argparse.Options{Required: false, Help: "Directory of generated .go files", Default: "gormgen"}) | |
| err := parser.Parse(os.Args) | |
| if err != nil { | |
| // In case of error print error and print usage | |
| // This can also be done by passing -h or --help flags | |
| fmt.Print(parser.Usage(err)) | |
| return | |
| } | |
| } |
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