68 lines
2.3 KiB
Go
68 lines
2.3 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"strconv"
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commandkit "gitea.maximumdirect.net/eric/CommandKit"
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)
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type greetInput struct {
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Count commandkit.Supplied[int]
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Tags commandkit.Supplied[[]string]
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}
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func newApp() (*commandkit.App, error) {
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countDefault := 1
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tagDefaults := []string{"demo"}
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greet := commandkit.NewCommand(commandkit.CommandSpec[greetInput]{
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Name: "greet",
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Summary: "Show presence-aware values and repeated labels.",
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Flags: []commandkit.Flag[greetInput]{
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commandkit.ValueFlag(commandkit.FlagMeta{Name: "count", Usage: "Greeting count."}, &countDefault, strconv.Atoi, func(input *greetInput, value commandkit.Supplied[int]) {
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input.Count = value
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}),
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commandkit.RepeatFlag(commandkit.FlagMeta{Name: "tag", Usage: "A repeatable label."}, tagDefaults, func(value string) (string, error) { return value, nil }, func(input *greetInput, value commandkit.Supplied[[]string]) {
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input.Tags = value
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}),
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},
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Run: func(invocation commandkit.Invocation, input greetInput) commandkit.Outcome {
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count := fmt.Sprintf("default %d (not supplied)", input.Count.Value)
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if input.Count.Set {
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count = fmt.Sprintf("explicit %d", input.Count.Value)
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}
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tags := fmt.Sprintf("default %v (not supplied)", input.Tags.Value)
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if input.Tags.Set {
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tags = fmt.Sprintf("explicit %v", input.Tags.Value)
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}
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if _, err := fmt.Fprintf(invocation.Streams.Out, "Hello; count=%s; tags=%s; entered=%q; canonical=%q\n", count, tags, invocation.EnteredPath(), invocation.CanonicalPath()); err != nil {
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return commandkit.Failure(err)
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}
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return commandkit.Success()
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},
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})
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workspace := commandkit.Group("workspace", "Workspace commands.", greet)
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declarations := []commandkit.Declaration{
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workspace,
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commandkit.Alias("hello", "workspace greet"),
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commandkit.Alias("ws", "workspace"),
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commandkit.FlagAliasFor("workspace greet", "--times", "--count"),
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commandkit.FlagAlias("--hlep", "--help"),
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}
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return commandkit.New(commandkit.Identity{Name: "core-example", Version: "1.0"}, declarations...)
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}
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func main() {
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app, err := newApp()
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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outcome := app.Execute(context.Background(), os.Args[1:], commandkit.Streams{Out: os.Stdout, Err: os.Stderr})
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if outcome.Status != 0 {
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os.Exit(outcome.Status)
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}
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}
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