46 lines
1 KiB
Go
46 lines
1 KiB
Go
package sort
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import (
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"fmt"
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"github.com/brtholomy/um/go/flags"
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)
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type options struct {
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Source flags.Flag[string]
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Key flags.Flag[string]
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Help flags.Flag[bool]
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}
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func initOpts() options {
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return options{
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flags.Flag[string]{"--source", "-s", "", "path to source list. reads from stdin if omitted."},
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flags.Flag[string]{"--key", "-k", "", "path to sort key"},
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flags.Flag[bool]{"--help", "-h", false, "show help"},
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}
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}
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func parseArgs(args []string) options {
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opts := initOpts()
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for i, arg := range args {
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switch {
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case arg == opts.Source.Long || arg == opts.Source.Short:
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flags.ValidValueOrExit(args, i)
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opts.Source.Val = args[i+1]
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case arg == opts.Key.Long || arg == opts.Key.Short:
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flags.ValidValueOrExit(args, i)
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opts.Key.Val = args[i+1]
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case arg == opts.Help.Long || arg == opts.Help.Short:
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flags.Help("sort", opts)
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default:
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fmt.Println("invalid argument")
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flags.Help("sort", opts)
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}
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}
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return opts
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}
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func Sort(args []string) {
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opts := parseArgs(args)
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fmt.Println(opts)
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}
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